[INFO] fetching crate potassium 0.4.3...
[INFO] testing potassium-0.4.3 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate potassium 0.4.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate potassium 0.4.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate potassium 0.4.3
[INFO] tweaked toml for crates.io crate potassium 0.4.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate potassium 0.4.3 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate potassium 0.4.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecc40a7c810d654ede33d6947d2defaa8e18522bedadf3739cb22578bdfe4df1
[INFO] running `Command { std: "docker" "start" "-a" "ecc40a7c810d654ede33d6947d2defaa8e18522bedadf3739cb22578bdfe4df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecc40a7c810d654ede33d6947d2defaa8e18522bedadf3739cb22578bdfe4df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecc40a7c810d654ede33d6947d2defaa8e18522bedadf3739cb22578bdfe4df1", kill_on_drop: false }`
[INFO] [stdout] ecc40a7c810d654ede33d6947d2defaa8e18522bedadf3739cb22578bdfe4df1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f99d132118db728ecde10b5f0d8631463eb9948756dceecf4f119c0e0db61bc
[INFO] running `Command { std: "docker" "start" "-a" "1f99d132118db728ecde10b5f0d8631463eb9948756dceecf4f119c0e0db61bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling cc v1.2.49
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling raw-cpuid v11.6.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling context v3.0.0
[INFO] [stderr]    Compiling fibrous v0.2.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling profiling-procmacros v1.0.17
[INFO] [stderr]    Compiling profiling v1.0.17
[INFO] [stderr]    Compiling gdt-cpus v25.12.0
[INFO] [stderr]    Compiling potassium v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: missing documentation for a function
[INFO] [stdout]   --> src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn current_worker_index() -> Option<usize> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout]  2 | #![warn(missing_docs, clippy::missing_safety_doc)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.74s
[INFO] running `Command { std: "docker" "inspect" "1f99d132118db728ecde10b5f0d8631463eb9948756dceecf4f119c0e0db61bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f99d132118db728ecde10b5f0d8631463eb9948756dceecf4f119c0e0db61bc", kill_on_drop: false }`
[INFO] [stdout] 1f99d132118db728ecde10b5f0d8631463eb9948756dceecf4f119c0e0db61bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 598c365094e44e4bbc33e0f79739fe825ef70cf64ccb1fccf0bce57090ef0524
[INFO] running `Command { std: "docker" "start" "-a" "598c365094e44e4bbc33e0f79739fe825ef70cf64ccb1fccf0bce57090ef0524", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.31
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling alloca v0.4.0
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling clap_lex v0.7.6
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling zerocopy-derive v0.8.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling page_size v0.6.0
[INFO] [stderr]    Compiling potassium v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling clap_builder v4.5.53
[INFO] [stdout] warning: missing documentation for a function
[INFO] [stdout]   --> src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn current_worker_index() -> Option<usize> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout]  2 | #![warn(missing_docs, clippy::missing_safety_doc)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling criterion-plot v0.8.1
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling clap v4.5.53
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling criterion v0.8.1
[INFO] [stdout] warning: missing documentation for a function
[INFO] [stdout]   --> src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn current_worker_index() -> Option<usize> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout]  2 | #![warn(missing_docs, clippy::missing_safety_doc)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 21.99s
[INFO] running `Command { std: "docker" "inspect" "598c365094e44e4bbc33e0f79739fe825ef70cf64ccb1fccf0bce57090ef0524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "598c365094e44e4bbc33e0f79739fe825ef70cf64ccb1fccf0bce57090ef0524", kill_on_drop: false }`
[INFO] [stdout] 598c365094e44e4bbc33e0f79739fe825ef70cf64ccb1fccf0bce57090ef0524
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a95ed07ef10b65c9fd80b151a9e03dbf864775ba8f82ce94d61ba35bd306137d
[INFO] running `Command { std: "docker" "start" "-a" "a95ed07ef10b65c9fd80b151a9e03dbf864775ba8f82ce94d61ba35bd306137d", kill_on_drop: false }`
[INFO] [stderr] warning: missing documentation for a function
[INFO] [stderr]   --> src/lib.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn current_worker_index() -> Option<usize> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:2:9
[INFO] [stderr]    |
[INFO] [stderr]  2 | #![warn(missing_docs, clippy::missing_safety_doc)]
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `potassium` (lib) generated 1 warning
[INFO] [stderr] warning: `potassium` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/potassium-99f3755747d76466)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test scheduler::tests::job_yielding ... ok
[INFO] [stdout] test scheduler::tests::test_simple_jobs ... ok
[INFO] [stdout] test scheduler::tests::job_priorities ... ok
[INFO] [stdout] test scheduler::tests::job_dependencies ... ok
[INFO] [stdout] test scheduler::tests::wait_for_single_job ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests potassium
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/scheduler.rs - scheduler::Scheduler::spawn_with_result (line 187) ... ok
[INFO] [stdout] test src/scheduler.rs - scheduler::Scheduler::num_jobs_queued (line 252) ... ok
[INFO] [stdout] test src/builder.rs - builder::JobBuilder<'a>::spawn (line 91) ... ok
[INFO] [stdout] test src/builder.rs - builder::JobBuilder<'a>::spawn_with_result (line 112) ... ok
[INFO] [stdout] test src/builder.rs - builder::JobBuilder<'a>::builder (line 24) ... ok
[INFO] [stdout] test src/scheduler.rs - scheduler::Scheduler::with_workers (line 126) ... ok
[INFO] [stdout] test src/builder.rs - builder::JobBuilder<'a>::dependencies (line 66) ... ok
[INFO] [stdout] test src/scheduler.rs - scheduler::Scheduler::wait_for_all (line 276) ... ok
[INFO] [stdout] test src/scheduler.rs - scheduler::Scheduler::new (line 42) ... ok
[INFO] [stdout] test src/scheduler.rs - scheduler::Scheduler::pause (line 304) ... ok
[INFO] [stdout] test src/scheduler.rs - scheduler::Scheduler::job_builder (line 235) ... ok
[INFO] [stdout] test src/scheduler.rs - scheduler::Scheduler::spawn (line 150) ... ok
[INFO] [stdout] test src/builder.rs - builder::JobBuilder<'a>::priority (line 47) ... ok
[INFO] [stdout] test src/../README.md - (line 21) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.05s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 2.98s; merged doctests compilation took 0.92s
[INFO] running `Command { std: "docker" "inspect" "a95ed07ef10b65c9fd80b151a9e03dbf864775ba8f82ce94d61ba35bd306137d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a95ed07ef10b65c9fd80b151a9e03dbf864775ba8f82ce94d61ba35bd306137d", kill_on_drop: false }`
[INFO] [stdout] a95ed07ef10b65c9fd80b151a9e03dbf864775ba8f82ce94d61ba35bd306137d
