[INFO] fetching crate re_mutex 0.31.3...
[INFO] testing re_mutex-0.31.3 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate re_mutex 0.31.3 into /workspace/builds/worker-5-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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate re_mutex 0.31.3 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a0f4e799cd8c672f38a5a9386e173f4f57d1b53d5cf2b5f97c7e3b31e2a7d88
[INFO] running `Command { std: "docker" "start" "-a" "7a0f4e799cd8c672f38a5a9386e173f4f57d1b53d5cf2b5f97c7e3b31e2a7d88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a0f4e799cd8c672f38a5a9386e173f4f57d1b53d5cf2b5f97c7e3b31e2a7d88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a0f4e799cd8c672f38a5a9386e173f4f57d1b53d5cf2b5f97c7e3b31e2a7d88", kill_on_drop: false }`
[INFO] [stdout] 7a0f4e799cd8c672f38a5a9386e173f4f57d1b53d5cf2b5f97c7e3b31e2a7d88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a508deeb5dca7356a91485969a2994c11c2c28c4620ff51af4ca9f31fdcf3890
[INFO] running `Command { std: "docker" "start" "-a" "a508deeb5dca7356a91485969a2994c11c2c28c4620ff51af4ca9f31fdcf3890", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling env_filter v1.0.0
[INFO] [stderr]    Compiling log-once v0.4.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling crossbeam v0.8.4
[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 14.09s
[INFO] running `Command { std: "docker" "inspect" "a508deeb5dca7356a91485969a2994c11c2c28c4620ff51af4ca9f31fdcf3890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a508deeb5dca7356a91485969a2994c11c2c28c4620ff51af4ca9f31fdcf3890", kill_on_drop: false }`
[INFO] [stdout] a508deeb5dca7356a91485969a2994c11c2c28c4620ff51af4ca9f31fdcf3890
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7ab4b1cc0d49f1cee036aa06646eaeb87be9a012bbd23b09fffca1b745714a1
[INFO] running `Command { std: "docker" "start" "-a" "c7ab4b1cc0d49f1cee036aa06646eaeb87be9a012bbd23b09fffca1b745714a1", 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 0.91s
[INFO] running `Command { std: "docker" "inspect" "c7ab4b1cc0d49f1cee036aa06646eaeb87be9a012bbd23b09fffca1b745714a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7ab4b1cc0d49f1cee036aa06646eaeb87be9a012bbd23b09fffca1b745714a1", kill_on_drop: false }`
[INFO] [stdout] c7ab4b1cc0d49f1cee036aa06646eaeb87be9a012bbd23b09fffca1b745714a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a080d9cfa599e69e1678824a05517b17a19365abd6fadfdbeb978562fd7ace73
[INFO] running `Command { std: "docker" "start" "-a" "a080d9cfa599e69e1678824a05517b17a19365abd6fadfdbeb978562fd7ace73", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/re_mutex-981ec5918ab7d487)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::lock_two_different_mutexes_single_thread ... ok
[INFO] [stdout] test tests_rwlock::rwlock_read_read_reentrancy ... ok
[INFO] [stdout] test tests_rwlock::lock_two_different_rwlocks_single_thread ... ok
[INFO] [stdout] test tests_rwlock::rwlock_short_read_foreign_read_write_reentrancy ... ok
[INFO] [stdout] test tests::lock_multiple_threads ... ok
[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] [stderr]    Doc-tests re_mutex
[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" "a080d9cfa599e69e1678824a05517b17a19365abd6fadfdbeb978562fd7ace73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a080d9cfa599e69e1678824a05517b17a19365abd6fadfdbeb978562fd7ace73", kill_on_drop: false }`
[INFO] [stdout] a080d9cfa599e69e1678824a05517b17a19365abd6fadfdbeb978562fd7ace73