Run mir-opt panic=abort tests on CI by Kobzol · Pull Request #160200 · rust-lang/rust

Kobzol · 2026-07-30T07:54:21Z

Context: https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Blessing.20mir-opt.20on.20a.20clean.20checkout.20produces.20a.20diff/near/613465816

It looks like we didn't run them on CI (ever? lol).

r? @RalfJung

rustbot · 2026-07-30T07:54:27Z

RalfJung is not on the review rotation at the moment.
They may take a while to respond.

jieyouxu · 2026-07-30T08:20:56Z

cf. #154607

RalfJung · 2026-07-30T08:33:37Z

I don't know nearly enough about bootstrap to review this.^^
@rustbot reroll

RalfJung · 2026-07-30T08:34:28Z

+        // Now also run the tests for the host with panic=abort
+        let panic_abort_target = builder
+            .ensure(MirOptPanicAbortSyntheticTarget { compiler: self.compiler, base: self.target });
+        run(panic_abort_target);


This will be redundant with --bless I think?
mir-opt --bless already takes very long due to all the sysroots it is building, I'd prefer it not to become even slower.

View changes since the review

It is only redundant if the host target matches the hardcoded targets we have below. I can add an if condition to skip them if they match the host target.

That being said, if the stdlib it built, re-running the tests again should be very fast, they will just be ignored.

It is always redundant. There are only 4 actually distinct configurations, so running more than 4 targets on --bless is redundant.

I see, so the target doesn't really matter, the only thing that matters is bitwidth and the panic strategy? Yeah, in that case I will try to optimize it to always run 2 targets when not blessing, and 4 targets when blessing.

Yeah.

When checking it's good to check the actual self.target to ensure CI covers them all. But in principle only the bitwidth and panic strategy should matter.

RalfJung · 2026-07-30T08:38:24Z

Cc @saethlin

RalfJung · 2026-07-30T08:42:18Z

The existing behavior of --bless is kind of annoying since it takes so long to build all these sysroots... and it actually builds 5 sysroots when 4 should be enough. (With this PR as-is it'd become 6 sysroots!) Not sure if there is something we could improve there. Does bootstrap know whether self.target is a 32bit target or 64bit target? If yes, we could bless

current target
current target with panic=abort
target of other bitwidth
target of other bitwidth with panic=abort

And only run the first two steps for non-bless mode. That'd be nice.

Kobzol · 2026-08-07T07:28:14Z

And only run the first two steps for non-bless mode. That'd be nice.

But when we do the check, we should test all 4 combinations, right? Otherwise we could get back into the same problem, where some of the combinations are not checked on CI, and thus bless becomes "dirty".

RalfJung · 2026-08-07T07:30:57Z

We are running mir-opt tests on all tier 1 targets, right? So 32bit and 64bit are both covered.

Kobzol · 2026-08-07T07:32:05Z

Ah, I see, makes sense. Thanks.

Kobzol · 2026-08-07T08:24:41Z

Ok, I refactored the whole thing. Now when checking, we run the current target, and then the current target with the "inverted" panic strategy. And when blessing, we run the current target + four fixed targets, as before (there was a comment saying that running also the current target when blessing is desired).

It is now possible to create synthetic targets with both panic abort/unwind strategies, and the generated miropt test steps are now created as separate step instances, which means that they will be more explicit tin the step trace, and they will also be properly cached.

JonathanBrouwer · 2026-09-03T18:01:54Z

💔 I suspect this PR failed tests as part of a rollup
@bors r-

After fixing the problem, consider running a try job for the failed job before re-approving.

Link to failure: #162251 (comment)

rust-bors · 2026-09-03T18:02:02Z

This pull request was unapproved.

This PR was contained in a rollup (#162251), which was unapproved.

View changes since this unapproval

Kobzol · 2026-09-03T20:19:02Z

@bors try jobs=test-various

Run mir-opt panic=abort tests on CI try-job: test-various

rust-bors · 2026-09-03T21:14:16Z

💔 Test for 02565e3 failed: CI. Failed job:

try - test-various (web logs, enhanced plaintext logs)

Kobzol · 2026-09-07T06:36:41Z

@bors try jobs=test-various

Run mir-opt panic=abort tests on CI try-job: test-various

And only include the target name when rendering test metadata, to avoid including filenames in it.

…anicStrategy`

… of targets to check

…windows-msvc

rustbot · 2026-09-07T06:45:37Z

This PR was rebased onto a different main commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.

rust-log-analyzer · 2026-09-07T07:27:31Z

The job test-aarch64-gnu-llvm-21-1 failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)


##[endgroup]
[TIMING:end] test::Compiletest { test_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu, mode: coverage-run, suite: "coverage", path: "tests/coverage", compare_mode: None } -- 0.086
[TIMING:end] test::Coverage { compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu, mode: coverage-run } -- 0.000
[TIMING:start] synthetic_targets::SyntheticTargetWithPanicStrategy { compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, base: aarch64-unknown-linux-gnu, strategy: Abort }
[TIMING:end] synthetic_targets::SyntheticTargetWithPanicStrategy { compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, base: aarch64-unknown-linux-gnu, strategy: Abort } -- 0.000
[TIMING:start] test::MirOpt { compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu }
[TIMING:start] test::Compiletest { test_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu, mode: mir-opt, suite: "mir-opt", path: "tests/mir-opt", compare_mode: None }
[TIMING:start] compile::Std { target: aarch64-unknown-linux-gnu, build_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, crates: [], force_recompile: false, extra_rust_args: [], is_for_mir_opt_tests: true }
[TIMING:start] compile::Std { target: aarch64-unknown-linux-gnu, build_compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, crates: [], force_recompile: false, extra_rust_args: [], is_for_mir_opt_tests: true }
##[group]Building stage1 library artifacts (stage1 -> stage1, aarch64-unknown-linux-gnu)
---

##[endgroup]
[TIMING:end] test::Compiletest { test_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu, mode: mir-opt, suite: "mir-opt", path: "tests/mir-opt", compare_mode: None } -- 8.196
[TIMING:end] test::MirOpt { compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu } -- 0.000
[TIMING:start] test::MirOpt { compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json) }
[TIMING:start] test::Compiletest { test_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json), mode: mir-opt, suite: "mir-opt", path: "tests/mir-opt", compare_mode: None }
[TIMING:start] compile::Std { target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json), build_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, crates: [], force_recompile: false, extra_rust_args: [], is_for_mir_opt_tests: true }
[TIMING:start] compile::StartupObjects { compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json) }
[TIMING:end] compile::StartupObjects { compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json) } -- 0.000
[TIMING:start] compile::Std { target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json), build_compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, crates: [], force_recompile: false, extra_rust_args: [], is_for_mir_opt_tests: true }
[TIMING:start] compile::StartupObjects { compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json) }
[TIMING:end] compile::StartupObjects { compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json) } -- 0.000
##[group]Building stage1 library artifacts (stage1:aarch64-unknown-linux-gnu -> stage1:aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json))
[RUSTC-TIMING] build_script_build test:false 0.229
   Compiling compiler_builtins v0.1.160 (/checkout/library/compiler-builtins/compiler-builtins)
    Checking core v0.0.0 (/checkout/library/core)
[RUSTC-TIMING] build_script_build test:false 0.220
[RUSTC-TIMING] build_script_build test:false 0.130
---
[RUSTC-TIMING] test test:false 1.597
    Checking sysroot v0.0.0 (/checkout/library/sysroot)
[RUSTC-TIMING] sysroot test:false 0.026
    Finished `dist` profile [optimized] target(s) in 58.04s
[TIMING:start] compile::StdLink { compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target_compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json), crates: [], force_recompile: false }
[TIMING:start] builder::Libdir { compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json) }
[TIMING:end] builder::Libdir { compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json) } -- 0.000
[TIMING:end] compile::StdLink { compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target_compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json), crates: [], force_recompile: false } -- 0.000
##[endgroup]
[TIMING:end] compile::Std { target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json), build_compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, crates: [], force_recompile: false, extra_rust_args: [], is_for_mir_opt_tests: true } -- 58.051
Uplifting library (stage1:aarch64-unknown-linux-gnu -> stage2:aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json))
[TIMING:start] compile::StdLink { compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json), crates: [], force_recompile: false }
[TIMING:start] builder::Libdir { compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json) }
[TIMING:end] builder::Libdir { compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json) } -- 0.000
[TIMING:end] compile::StdLink { compiler: Compiler { stage: 1, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json), crates: [], force_recompile: false } -- 0.000
[TIMING:end] compile::Std { target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json), build_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, crates: [], force_recompile: false, extra_rust_args: [], is_for_mir_opt_tests: true } -- 0.000
[TIMING:start] test::RemoteCopyLibs { build_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json) }
[TIMING:end] test::RemoteCopyLibs { build_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json) } -- 0.000
##[group]Testing stage2 with compiletest suite=mir-opt mode=mir-opt (aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json))

running 410 tests
test [mir-opt] tests/mir-opt/alignment_checks.rs ... ok
test [mir-opt] tests/mir-opt/asm_unwind_panic_abort.rs ... ok
test [mir-opt] tests/mir-opt/basic_assignment.rs ... ignored, ignored on targets without unwinding support
---

test result: ok. 377 passed; 0 failed; 33 ignored; 0 measured; 0 filtered out; finished in 9.40s

##[endgroup]
[TIMING:end] test::Compiletest { test_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json), mode: mir-opt, suite: "mir-opt", path: "tests/mir-opt", compare_mode: None } -- 9.506
[TIMING:end] test::MirOpt { compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/aarch64-unknown-linux-gnu-synthetic-miropt-abort.json) } -- 0.000
[TIMING:start] test::CodegenLlvm { test_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu }
[TIMING:start] test::Compiletest { test_compiler: Compiler { stage: 2, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu, mode: codegen, suite: "codegen-llvm", path: "tests/codegen-llvm", compare_mode: None }
##[group]Testing stage2 with compiletest suite=codegen-llvm mode=codegen (aarch64-unknown-linux-gnu)

running 1217 tests
---

error: cannot find macro `assert_eq` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:49:5
   |
49 |     assert_eq!(buf[3], 0x100F0E0D);
   |     ^^^^^^^^^

error: cannot find macro `assert_eq` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:53:5
   |
53 |     assert_eq!(buf[0], 0x05040302);
   |     ^^^^^^^^^

error: cannot find macro `assert_eq` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:54:5
   |
54 |     assert_eq!(buf[2], 0x0D0C0B0A);
   |     ^^^^^^^^^

error: cannot find macro `assert_eq` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:58:5
   |
58 |     assert_eq!(buf[0], 0x0807060504030201);
   |     ^^^^^^^^^

error: cannot find macro `assert_eq` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:59:5
   |
59 |     assert_eq!(buf[1], 0x100F0E0D0C0B0A09);
   |     ^^^^^^^^^

error: cannot find macro `assert_eq` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:63:5
   |
63 |     assert_eq!(buf[0], 0x0F0E0D0C0B0A0908);
   |     ^^^^^^^^^

error: cannot find macro `assert` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:36:5
   |
36 |     assert!(src.len() >= 8 * dst.len());
   |     ^^^^^^

error: cannot find macro `assert` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:22:5
   |
22 |     assert!(src.len() >= 4 * dst.len());
   |     ^^^^^^

error: cannot find macro `assert` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:341:9
    |
341 |         assert!(index < self.results.as_ref().len());
    |         ^^^^^^

error: cannot find attribute `derive` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:283:3
    |
283 | #[derive(Clone)]
    |   ^^^^^^

error: cannot find macro `assert` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:178:9
    |
178 |         assert!(index < self.results.as_ref().len());
    |         ^^^^^^

error: cannot find attribute `derive` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:118:3
    |
118 | #[derive(Clone)]
    |   ^^^^^^

error[E0405]: cannot find trait `AsRef` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:73:19
   |
73 |     type Results: AsRef<[Self::Item]> + AsMut<[Self::Item]> + Default;
   |                   ^^^^^ not found in this scope

error[E0405]: cannot find trait `AsMut` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:73:41
   |
73 |     type Results: AsRef<[Self::Item]> + AsMut<[Self::Item]> + Default;
   |                                         ^^^^^ not found in this scope

error[E0405]: cannot find trait `Default` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:73:63
   |
73 |     type Results: AsRef<[Self::Item]> + AsMut<[Self::Item]> + Default;
   |                                                               ^^^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:256:52
    |
256 |     fn try_from_rng<S: TryRngCore>(rng: &mut S) -> Result<Self, S::Error> {
    |                                                    ^^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:285:42
    |
285 | pub struct BlockRng64<R: BlockRngCore + ?Sized> {
    |                                          ^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:419:52
    |
419 |     fn try_from_rng<S: TryRngCore>(rng: &mut S) -> Result<Self, S::Error> {
    |                                                    ^^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:23:39
   |
23 | pub fn next_u64_via_u32<R: RngCore + ?Sized>(rng: &mut R) -> u64 {
   |                                       ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:36:42
   |
36 | pub fn fill_bytes_via_next<R: RngCore + ?Sized>(rng: &mut R, dest: &mut [u8]) {
   |                                          ^^^^^ not found in this scope

error[E0405]: cannot find trait `Copy` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:54:30
   |
54 | pub(crate) trait Observable: Copy {
   |                              ^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:55:17
   |
55 |     type Bytes: Sized + AsRef<[u8]>;
   |                 ^^^^^ not found in this scope

error[E0405]: cannot find trait `AsRef` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:55:25
   |
55 |     type Bytes: Sized + AsRef<[u8]>;
   |                         ^^^^^ not found in this scope

error[E0531]: cannot find tuple struct or tuple variant `Some` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:91:12
   |
91 |     if let Some(src) = src.next() {
   |            ^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:161:40
    |
161 | pub fn next_u32_via_fill<R: RngCore + ?Sized>(rng: &mut R) -> u32 {
    |                                        ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:168:40
    |
168 | pub fn next_u64_via_fill<R: RngCore + ?Sized>(rng: &mut R) -> u64 {
    |                                        ^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:225:35
    |
225 |     fn try_next_u32(&mut self) -> Result<u32, Self::Error>;
    |                                   ^^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:227:35
    |
227 |     fn try_next_u64(&mut self) -> Result<u64, Self::Error>;
    |                                   ^^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:229:53
    |
---

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:257:20
    |
257 | impl<R: RngCore + ?Sized> TryRngCore for R {
    |                    ^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:261:35
    |
261 |     fn try_next_u32(&mut self) -> Result<u32, Self::Error> {
    |                                   ^^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:266:35
    |
266 |     fn try_next_u64(&mut self) -> Result<u64, Self::Error> {
    |                                   ^^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:271:53
    |
271 |     fn try_fill_bytes(&mut self, dst: &mut [u8]) -> Result<(), Self::Error> {
    |                                                     ^^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:293:22
    |
293 | impl<R: CryptoRng + ?Sized> TryCryptoRng for R {}
    |                      ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:322:43
    |
322 | pub struct UnwrapMut<'r, R: TryRngCore + ?Sized>(pub &'r mut R);
    |                                           ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:324:27
    |
324 | impl<'r, R: TryRngCore + ?Sized> UnwrapMut<'r, R> {
    |                           ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:339:23
    |
339 | impl<R: TryRngCore + ?Sized> RngCore for UnwrapMut<'_, R> {
    |                       ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:356:25
    |
356 | impl<R: TryCryptoRng + ?Sized> CryptoRng for UnwrapMut<'_, R> {}
    |                         ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:371:24
    |
371 | pub trait SeedableRng: Sized {
    |                        ^^^^^ not found in this scope

error[E0405]: cannot find trait `Clone` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:423:16
    |
423 |     type Seed: Clone + Default + AsRef<[u8]> + AsMut<[u8]>;
    |                ^^^^^ not found in this scope

error[E0405]: cannot find trait `Default` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:423:24
    |
423 |     type Seed: Clone + Default + AsRef<[u8]> + AsMut<[u8]>;
    |                        ^^^^^^^ not found in this scope

error[E0405]: cannot find trait `AsRef` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:423:34
    |
423 |     type Seed: Clone + Default + AsRef<[u8]> + AsMut<[u8]>;
    |                                  ^^^^^ not found in this scope

error[E0405]: cannot find trait `AsMut` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:423:48
    |
423 |     type Seed: Clone + Default + AsRef<[u8]> + AsMut<[u8]>;
    |                                                ^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:530:52
    |
530 |     fn try_from_rng<R: TryRngCore>(rng: &mut R) -> Result<Self, R::Error> {
    |                                                    ^^^^^^ not found in this scope

error[E0464]: multiple candidates for `rmeta` dependency `compiler_builtins` found
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:10:1
   |
---

error: requires `range_inclusive_new` lang_item
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:199:33
    |
199 |             let data = &results[index..=index + 1];
    |                                 ^^^^^^^^^^^^^^^^^

error[E0425]: cannot find function, tuple struct or tuple variant `Ok` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:262:9
    |
---

error[E0425]: cannot find function, tuple struct or tuple variant `Ok` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:533:9
    |
533 |         Ok(Self::from_seed(seed))
    |         ^^ not found in this scope

Some errors have detailed explanations: E0405, E0425, E0464, E0531.
For more information about an error, try `rustc --explain E0405`.
[RUSTC-TIMING] rand_core test:false 0.086

rust-bors · 2026-09-07T07:35:48Z

💔 Test for 0d3b149 failed: CI. Failed job:

try - test-various (web logs, enhanced plaintext logs)

rust-log-analyzer · 2026-09-07T07:35:51Z

The job test-various failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)


##[endgroup]
[TIMING:end] test::Compiletest { test_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1, mode: ui, suite: "ui", path: "tests/ui", compare_mode: None } -- 491.898
[TIMING:end] test::Ui { test_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1 } -- 0.000
[TIMING:start] synthetic_targets::SyntheticTargetWithPanicStrategy { compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, base: wasm32-wasip1, strategy: Unwind }
[TIMING:end] synthetic_targets::SyntheticTargetWithPanicStrategy { compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, base: wasm32-wasip1, strategy: Unwind } -- 0.000
[TIMING:start] test::MirOpt { compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1 }
[TIMING:start] test::Compiletest { test_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1, mode: mir-opt, suite: "mir-opt", path: "tests/mir-opt", compare_mode: None }
[TIMING:start] compile::Std { target: x86_64-unknown-linux-gnu, build_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, crates: [], force_recompile: false, extra_rust_args: [], is_for_mir_opt_tests: true }
[TIMING:start] compile::Std { target: x86_64-unknown-linux-gnu, build_compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, crates: [], force_recompile: false, extra_rust_args: [], is_for_mir_opt_tests: true }
##[group]Building stage1 library artifacts (stage1 -> stage1, x86_64-unknown-linux-gnu)
---

##[endgroup]
[TIMING:end] test::Compiletest { test_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1, mode: mir-opt, suite: "mir-opt", path: "tests/mir-opt", compare_mode: None } -- 6.045
[TIMING:end] test::MirOpt { compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1 } -- 0.000
[TIMING:start] test::MirOpt { compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json) }
[TIMING:start] test::Compiletest { test_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json), mode: mir-opt, suite: "mir-opt", path: "tests/mir-opt", compare_mode: None }
[TIMING:start] compile::Std { target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json), build_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, crates: [], force_recompile: false, extra_rust_args: [], is_for_mir_opt_tests: true }
[TIMING:start] compile::StartupObjects { compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json) }
[TIMING:end] compile::StartupObjects { compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json) } -- 0.000
[TIMING:start] compile::Std { target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json), build_compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, crates: [], force_recompile: false, extra_rust_args: [], is_for_mir_opt_tests: true }
[TIMING:start] compile::StartupObjects { compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json) }
[TIMING:end] compile::StartupObjects { compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json) } -- 0.000
##[group]Building stage1 library artifacts (stage1:x86_64-unknown-linux-gnu -> stage1:wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json))
[RUSTC-TIMING] build_script_build test:false 0.184
   Compiling compiler_builtins v0.1.160 (/checkout/library/compiler-builtins/compiler-builtins)
    Checking core v0.0.0 (/checkout/library/core)
[RUSTC-TIMING] build_script_build test:false 0.210
[RUSTC-TIMING] build_script_build test:false 0.100
---
[RUSTC-TIMING] proc_macro test:false 1.304
    Checking sysroot v0.0.0 (/checkout/library/sysroot)
[RUSTC-TIMING] sysroot test:false 0.024
    Finished `dist` profile [optimized] target(s) in 28.92s
[TIMING:start] compile::StdLink { compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target_compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json), crates: [], force_recompile: false }
[TIMING:start] builder::Libdir { compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json) }
[TIMING:end] builder::Libdir { compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json) } -- 0.000
[TIMING:end] compile::StdLink { compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target_compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json), crates: [], force_recompile: false } -- 0.000
##[endgroup]
[TIMING:end] compile::Std { target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json), build_compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, crates: [], force_recompile: false, extra_rust_args: [], is_for_mir_opt_tests: true } -- 28.930
Uplifting library (stage1:x86_64-unknown-linux-gnu -> stage2:wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json))
[TIMING:start] compile::StdLink { compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json), crates: [], force_recompile: false }
[TIMING:start] builder::Libdir { compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json) }
[TIMING:end] builder::Libdir { compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json) } -- 0.000
[TIMING:end] compile::StdLink { compiler: Compiler { stage: 1, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json), crates: [], force_recompile: false } -- 0.000
[TIMING:end] compile::Std { target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json), build_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, crates: [], force_recompile: false, extra_rust_args: [], is_for_mir_opt_tests: true } -- 0.000
[TIMING:start] test::RemoteCopyLibs { build_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json) }
[TIMING:end] test::RemoteCopyLibs { build_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json) } -- 0.000
##[group]Testing stage2 with compiletest suite=mir-opt mode=mir-opt (wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json))

running 410 tests
test [mir-opt] tests/mir-opt/alignment_checks.rs ... ignored, only executed when the pointer width is 64bit
test [mir-opt] tests/mir-opt/asm_unwind_panic_abort.rs ... ignored, ignored on targets without inline assembly support
test [mir-opt] tests/mir-opt/array_index_is_temporary.rs ... ok
---

test result: ok. 401 passed; 0 failed; 9 ignored; 0 measured; 0 filtered out; finished in 9.01s

##[endgroup]
[TIMING:end] test::Compiletest { test_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json), mode: mir-opt, suite: "mir-opt", path: "tests/mir-opt", compare_mode: None } -- 9.117
[TIMING:end] test::MirOpt { compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1-synthetic-miropt-abort(/checkout/obj/build/synthetic-target-specs/wasm32-wasip1-synthetic-miropt-abort.json) } -- 0.000
[TIMING:start] test::CodegenUnits { test_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1 }
[TIMING:start] test::Compiletest { test_compiler: Compiler { stage: 2, host: x86_64-unknown-linux-gnu, forced_compiler: false }, target: wasm32-wasip1, mode: codegen-units, suite: "codegen-units", path: "tests/codegen-units", compare_mode: None }
##[group]Testing stage2 with compiletest suite=codegen-units mode=codegen-units (wasm32-wasip1)

running 46 tests
---

error: cannot find macro `assert_eq` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:49:5
   |
49 |     assert_eq!(buf[3], 0x100F0E0D);
   |     ^^^^^^^^^

error: cannot find macro `assert_eq` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:53:5
   |
53 |     assert_eq!(buf[0], 0x05040302);
   |     ^^^^^^^^^

error: cannot find macro `assert_eq` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:54:5
   |
54 |     assert_eq!(buf[2], 0x0D0C0B0A);
   |     ^^^^^^^^^

error: cannot find macro `assert_eq` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:58:5
   |
58 |     assert_eq!(buf[0], 0x0807060504030201);
   |     ^^^^^^^^^

error: cannot find macro `assert_eq` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:59:5
   |
59 |     assert_eq!(buf[1], 0x100F0E0D0C0B0A09);
   |     ^^^^^^^^^

error: cannot find macro `assert_eq` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:63:5
   |
63 |     assert_eq!(buf[0], 0x0F0E0D0C0B0A0908);
   |     ^^^^^^^^^

error: cannot find macro `assert` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:36:5
   |
36 |     assert!(src.len() >= 8 * dst.len());
   |     ^^^^^^

error: cannot find macro `assert` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/le.rs:22:5
   |
22 |     assert!(src.len() >= 4 * dst.len());
   |     ^^^^^^

error: cannot find macro `assert` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:341:9
    |
341 |         assert!(index < self.results.as_ref().len());
    |         ^^^^^^

error: cannot find attribute `derive` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:283:3
    |
283 | #[derive(Clone)]
    |   ^^^^^^

error: cannot find macro `assert` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:178:9
    |
178 |         assert!(index < self.results.as_ref().len());
    |         ^^^^^^

error: cannot find attribute `derive` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:118:3
    |
118 | #[derive(Clone)]
    |   ^^^^^^

error[E0405]: cannot find trait `AsRef` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:73:19
   |
73 |     type Results: AsRef<[Self::Item]> + AsMut<[Self::Item]> + Default;
   |                   ^^^^^ not found in this scope

error[E0405]: cannot find trait `AsMut` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:73:41
   |
73 |     type Results: AsRef<[Self::Item]> + AsMut<[Self::Item]> + Default;
   |                                         ^^^^^ not found in this scope

error[E0405]: cannot find trait `Default` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:73:63
   |
73 |     type Results: AsRef<[Self::Item]> + AsMut<[Self::Item]> + Default;
   |                                                               ^^^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:256:52
    |
256 |     fn try_from_rng<S: TryRngCore>(rng: &mut S) -> Result<Self, S::Error> {
    |                                                    ^^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:285:42
    |
285 | pub struct BlockRng64<R: BlockRngCore + ?Sized> {
    |                                          ^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:419:52
    |
419 |     fn try_from_rng<S: TryRngCore>(rng: &mut S) -> Result<Self, S::Error> {
    |                                                    ^^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:23:39
   |
23 | pub fn next_u64_via_u32<R: RngCore + ?Sized>(rng: &mut R) -> u64 {
   |                                       ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:36:42
   |
36 | pub fn fill_bytes_via_next<R: RngCore + ?Sized>(rng: &mut R, dest: &mut [u8]) {
   |                                          ^^^^^ not found in this scope

error[E0405]: cannot find trait `Copy` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:54:30
   |
54 | pub(crate) trait Observable: Copy {
   |                              ^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:55:17
   |
55 |     type Bytes: Sized + AsRef<[u8]>;
   |                 ^^^^^ not found in this scope

error[E0405]: cannot find trait `AsRef` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:55:25
   |
55 |     type Bytes: Sized + AsRef<[u8]>;
   |                         ^^^^^ not found in this scope

error[E0531]: cannot find tuple struct or tuple variant `Some` in this scope
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:91:12
   |
91 |     if let Some(src) = src.next() {
   |            ^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:161:40
    |
161 | pub fn next_u32_via_fill<R: RngCore + ?Sized>(rng: &mut R) -> u32 {
    |                                        ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/impls.rs:168:40
    |
168 | pub fn next_u64_via_fill<R: RngCore + ?Sized>(rng: &mut R) -> u64 {
    |                                        ^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:225:35
    |
225 |     fn try_next_u32(&mut self) -> Result<u32, Self::Error>;
    |                                   ^^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:227:35
    |
227 |     fn try_next_u64(&mut self) -> Result<u64, Self::Error>;
    |                                   ^^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:229:53
    |
---

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:257:20
    |
257 | impl<R: RngCore + ?Sized> TryRngCore for R {
    |                    ^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:261:35
    |
261 |     fn try_next_u32(&mut self) -> Result<u32, Self::Error> {
    |                                   ^^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:266:35
    |
266 |     fn try_next_u64(&mut self) -> Result<u64, Self::Error> {
    |                                   ^^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:271:53
    |
271 |     fn try_fill_bytes(&mut self, dst: &mut [u8]) -> Result<(), Self::Error> {
    |                                                     ^^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:293:22
    |
293 | impl<R: CryptoRng + ?Sized> TryCryptoRng for R {}
    |                      ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:322:43
    |
322 | pub struct UnwrapMut<'r, R: TryRngCore + ?Sized>(pub &'r mut R);
    |                                           ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:324:27
    |
324 | impl<'r, R: TryRngCore + ?Sized> UnwrapMut<'r, R> {
    |                           ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:339:23
    |
339 | impl<R: TryRngCore + ?Sized> RngCore for UnwrapMut<'_, R> {
    |                       ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:356:25
    |
356 | impl<R: TryCryptoRng + ?Sized> CryptoRng for UnwrapMut<'_, R> {}
    |                         ^^^^^ not found in this scope

error[E0405]: cannot find trait `Sized` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:371:24
    |
371 | pub trait SeedableRng: Sized {
    |                        ^^^^^ not found in this scope

error[E0405]: cannot find trait `Clone` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:423:16
    |
423 |     type Seed: Clone + Default + AsRef<[u8]> + AsMut<[u8]>;
    |                ^^^^^ not found in this scope

error[E0405]: cannot find trait `Default` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:423:24
    |
423 |     type Seed: Clone + Default + AsRef<[u8]> + AsMut<[u8]>;
    |                        ^^^^^^^ not found in this scope

error[E0405]: cannot find trait `AsRef` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:423:34
    |
423 |     type Seed: Clone + Default + AsRef<[u8]> + AsMut<[u8]>;
    |                                  ^^^^^ not found in this scope

error[E0405]: cannot find trait `AsMut` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:423:48
    |
423 |     type Seed: Clone + Default + AsRef<[u8]> + AsMut<[u8]>;
    |                                                ^^^^^ not found in this scope

error[E0425]: cannot find type `Result` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:530:52
    |
530 |     fn try_from_rng<R: TryRngCore>(rng: &mut R) -> Result<Self, R::Error> {
    |                                                    ^^^^^^ not found in this scope

error[E0464]: multiple candidates for `rmeta` dependency `compiler_builtins` found
  --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:10:1
   |
---

error: requires `range_inclusive_new` lang_item
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/block.rs:199:33
    |
199 |             let data = &results[index..=index + 1];
    |                                 ^^^^^^^^^^^^^^^^^

error[E0425]: cannot find function, tuple struct or tuple variant `Ok` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:262:9
    |
---

error[E0425]: cannot find function, tuple struct or tuple variant `Ok` in this scope
   --> /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.5/src/lib.rs:533:9
    |
533 |         Ok(Self::from_seed(seed))
    |         ^^ not found in this scope

Some errors have detailed explanations: E0405, E0425, E0464, E0531.
For more information about an error, try `rustc --explain E0405`.
[RUSTC-TIMING] rand_core test:false 0.053

rustbot assigned RalfJung Jul 30, 2026

This comment has been minimized.

Sign in to view

jieyouxu self-assigned this Jul 30, 2026

jieyouxu reviewed Jul 30, 2026

View reviewed changes

Comment thread src/bootstrap/src/core/build_steps/test.rs Outdated

rustbot assigned jackh726 and unassigned RalfJung and jieyouxu Jul 30, 2026

RalfJung reviewed Jul 30, 2026

View reviewed changes

jieyouxu assigned jieyouxu and unassigned jackh726 Jul 30, 2026

This comment has been minimized.

Sign in to view

jieyouxu added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 4, 2026

Kobzol force-pushed the mir-opt-panic-abort-on-ci branch from a65622e to b63868d Compare August 7, 2026 08:23

This comment has been minimized.

Sign in to view

JonathanBrouwer mentioned this pull request Sep 3, 2026

Rollup of 13 pull requests #162251

Closed

rust-bors Bot added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Sep 3, 2026

This comment has been minimized.

Sign in to view

rust-bors Bot pushed a commit that referenced this pull request Sep 3, 2026

Auto merge of #160200 - Kobzol:mir-opt-panic-abort-on-ci, r=<try>

02565e3

Run mir-opt panic=abort tests on CI try-job: test-various

This comment has been minimized.

Sign in to view

rust-bors Bot pushed a commit that referenced this pull request Sep 7, 2026

Auto merge of #160200 - Kobzol:mir-opt-panic-abort-on-ci, r=<try>

0d3b149

Run mir-opt panic=abort tests on CI try-job: test-various

This comment has been minimized.

Sign in to view

Kobzol added 11 commits September 7, 2026 08:44

Bless bootstrap tests

c02aa4e

And only include the target name when rendering test metadata, to avoid including filenames in it.

Generalize MirOptPanicAbortSyntheticTarget to `SyntheticTargetWithP…

54d589a

…anicStrategy`

Create targets for mir-opt tests explicitly and use the minimal set…

874f72a

… of targets to check

Fix host normalization

22ec841

Bless at most four individual targets

b0d6723

Do not call configure_linker for synthetic targets

13cdbfd

Add needs-deterministic-layouts flag

6f6103e

Add comments

03af1e8

Bless test

feafdd6

Do not normalize host in mir-opt bootstrap test to fix it on i686-pc-…

59ffbfe

…windows-msvc

Propagate is_for_mir_opt_tests when uplifting in the Std step

373b59f

Kobzol force-pushed the mir-opt-panic-abort-on-ci branch from a44dab2 to 373b59f Compare September 7, 2026 06:45

Uh oh!

Uh oh!

Conversation

Kobzol commented Jul 30, 2026 • edited by rustbot Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

rustbot commented Jul 30, 2026

Uh oh!

This comment has been minimized.

jieyouxu commented Jul 30, 2026

Uh oh!

Uh oh!

RalfJung commented Jul 30, 2026

Uh oh!

RalfJung Jul 30, 2026 • edited by rustbot Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Choose a reason for hiding this comment

Uh oh!

Kobzol Jul 30, 2026

Choose a reason for hiding this comment

Uh oh!

RalfJung Jul 30, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Choose a reason for hiding this comment

Uh oh!

Kobzol Jul 30, 2026

Choose a reason for hiding this comment

Uh oh!

RalfJung Jul 30, 2026

Choose a reason for hiding this comment

Uh oh!

RalfJung commented Jul 30, 2026

Uh oh!

RalfJung commented Jul 30, 2026

Uh oh!

This comment has been minimized.

Kobzol commented Aug 7, 2026

Uh oh!

RalfJung commented Aug 7, 2026 via email

Uh oh!

Kobzol commented Aug 7, 2026

Uh oh!

This comment has been minimized.

Kobzol commented Aug 7, 2026

Uh oh!

This comment has been minimized.

This comment has been minimized.

JonathanBrouwer commented Sep 3, 2026

Uh oh!

rust-bors Bot commented Sep 3, 2026

Uh oh!

Kobzol commented Sep 3, 2026

Uh oh!

This comment has been minimized.

rust-bors Bot commented Sep 3, 2026

Uh oh!

This comment has been minimized.

Kobzol commented Sep 7, 2026

Uh oh!

This comment has been minimized.

This comment has been minimized.

rustbot commented Sep 7, 2026

Uh oh!

rust-log-analyzer commented Sep 7, 2026

Uh oh!

rust-bors Bot commented Sep 7, 2026

Uh oh!

rust-log-analyzer commented Sep 7, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

10 participants

Kobzol commented Jul 30, 2026 •

edited by rustbot

Loading

RalfJung Jul 30, 2026 •

edited by rustbot

Loading

RalfJung Jul 30, 2026 •

edited

Loading