[INFO] fetching crate re_mutex 0.31.3...
[INFO] testing re_mutex-0.31.3 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate re_mutex 0.31.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate re_mutex 0.31.3
[INFO] finished tweaking crates.io crate re_mutex 0.31.3
[INFO] tweaked toml for crates.io crate re_mutex 0.31.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate re_mutex 0.31.3 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 re_mutex 0.31.3 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] f6a7110b63f880fca952a811f4e1697d19d8e5fe006335b6b9d6714f4527bf15
[INFO] running `Command { std: "docker" "start" "-a" "f6a7110b63f880fca952a811f4e1697d19d8e5fe006335b6b9d6714f4527bf15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6a7110b63f880fca952a811f4e1697d19d8e5fe006335b6b9d6714f4527bf15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a7110b63f880fca952a811f4e1697d19d8e5fe006335b6b9d6714f4527bf15", kill_on_drop: false }`
[INFO] [stdout] f6a7110b63f880fca952a811f4e1697d19d8e5fe006335b6b9d6714f4527bf15
[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] 8c33b1c040d664a6339c8bffe120a033afc387c89095c12b3ad1d7a673ffbaeb
[INFO] running `Command { std: "docker" "start" "-a" "8c33b1c040d664a6339c8bffe120a033afc387c89095c12b3ad1d7a673ffbaeb", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling env_filter v1.0.0
[INFO] [stderr]    Compiling log-once v0.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[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 quote v1.0.45
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling re_log v0.31.3
[INFO] [stderr]    Compiling re_mutex v0.31.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.27s
[INFO] running `Command { std: "docker" "inspect" "8c33b1c040d664a6339c8bffe120a033afc387c89095c12b3ad1d7a673ffbaeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c33b1c040d664a6339c8bffe120a033afc387c89095c12b3ad1d7a673ffbaeb", kill_on_drop: false }`
[INFO] [stdout] 8c33b1c040d664a6339c8bffe120a033afc387c89095c12b3ad1d7a673ffbaeb
[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] 7d28ecb7454b61825aeee01fd239098160554e1764e5af8a07842ed393b6670e
[INFO] running `Command { std: "docker" "start" "-a" "7d28ecb7454b61825aeee01fd239098160554e1764e5af8a07842ed393b6670e", kill_on_drop: false }`
[INFO] [stderr]    Compiling re_mutex v0.31.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "7d28ecb7454b61825aeee01fd239098160554e1764e5af8a07842ed393b6670e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d28ecb7454b61825aeee01fd239098160554e1764e5af8a07842ed393b6670e", kill_on_drop: false }`
[INFO] [stdout] 7d28ecb7454b61825aeee01fd239098160554e1764e5af8a07842ed393b6670e
[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] 18cf9ae4556fb12daa78b79e44b5c4b09bfb48ee60469ba26d88a0d734cbcad7
[INFO] running `Command { std: "docker" "start" "-a" "18cf9ae4556fb12daa78b79e44b5c4b09bfb48ee60469ba26d88a0d734cbcad7", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/re_mutex-7d023a7ba9374b58)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests_rwlock::rwlock_short_read_foreign_read_write_reentrancy ... ok
[INFO] [stdout] test tests_rwlock::lock_two_different_rwlocks_single_thread ... ok
[INFO] [stdout] test tests_rwlock::rwlock_read_read_reentrancy ... ok
[INFO] [stdout] test tests::lock_two_different_mutexes_single_thread ... ok
[INFO] [stdout] test tests::lock_multiple_threads ... ok
[INFO] [stderr]    Doc-tests re_mutex
[INFO] [stdout] test tests_rwlock::rwlock_multiple_threads ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "18cf9ae4556fb12daa78b79e44b5c4b09bfb48ee60469ba26d88a0d734cbcad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18cf9ae4556fb12daa78b79e44b5c4b09bfb48ee60469ba26d88a0d734cbcad7", kill_on_drop: false }`
[INFO] [stdout] 18cf9ae4556fb12daa78b79e44b5c4b09bfb48ee60469ba26d88a0d734cbcad7
