[INFO] fetching crate tracing-mutex 0.1.2...
[INFO] testing tracing-mutex-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tracing-mutex 0.1.2 into /workspace/builds/worker-95/source
[INFO] validating manifest of crates.io crate tracing-mutex 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-mutex 0.1.2
[INFO] finished tweaking crates.io crate tracing-mutex 0.1.2
[INFO] tweaked toml for crates.io crate tracing-mutex 0.1.2 written to /workspace/builds/worker-95/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 521f3c9ef64d74f391e01524593fd657a95cbd94fd0b100e1de504bf560629b1
[INFO] running `Command { std: "docker" "start" "-a" "521f3c9ef64d74f391e01524593fd657a95cbd94fd0b100e1de504bf560629b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "521f3c9ef64d74f391e01524593fd657a95cbd94fd0b100e1de504bf560629b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "521f3c9ef64d74f391e01524593fd657a95cbd94fd0b100e1de504bf560629b1", kill_on_drop: false }`
[INFO] [stdout] 521f3c9ef64d74f391e01524593fd657a95cbd94fd0b100e1de504bf560629b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a5db6f6c282c1d72d860121304534c8ab4996522debced79c780ddc86d1ee0a
[INFO] running `Command { std: "docker" "start" "-a" "9a5db6f6c282c1d72d860121304534c8ab4996522debced79c780ddc86d1ee0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-mutex v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "9a5db6f6c282c1d72d860121304534c8ab4996522debced79c780ddc86d1ee0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a5db6f6c282c1d72d860121304534c8ab4996522debced79c780ddc86d1ee0a", kill_on_drop: false }`
[INFO] [stdout] 9a5db6f6c282c1d72d860121304534c8ab4996522debced79c780ddc86d1ee0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 763446db54491a3e96533c7cb161f518d0d4dd4658e570d39c137f11f1d68005
[INFO] running `Command { std: "docker" "start" "-a" "763446db54491a3e96533c7cb161f518d0d4dd4658e570d39c137f11f1d68005", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling tracing-mutex v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.37s
[INFO] running `Command { std: "docker" "inspect" "763446db54491a3e96533c7cb161f518d0d4dd4658e570d39c137f11f1d68005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "763446db54491a3e96533c7cb161f518d0d4dd4658e570d39c137f11f1d68005", kill_on_drop: false }`
[INFO] [stdout] 763446db54491a3e96533c7cb161f518d0d4dd4658e570d39c137f11f1d68005
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4a2cb7fef5e307314bbe38eae6a3f8051f54195675abe8a9fe64b57ebffc077d
[INFO] running `Command { std: "docker" "start" "-a" "4a2cb7fef5e307314bbe38eae6a3f8051f54195675abe8a9fe64b57ebffc077d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tracing_mutex-6cc6b2a5589dc7a6)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test graph::tests::test_digraph ... ok
[INFO] [stdout] test stdsync::tests::test_once_usage ... ok
[INFO] [stdout] test stdsync::tests::test_mutex_usage ... ok
[INFO] [stdout] test stdsync::tests::test_rwlock_usage ... ok
[INFO] [stdout] test tests::test_next_mutex_id ... ok
[INFO] [stdout] test tests::test_lazy_mutex_id ... ok
[INFO] [stdout] test graph::tests::fuzz_digraph ... ok
[INFO] [stdout] test stdsync::tests::test_detect_cycle - should panic ... ok
[INFO] [stdout] test tests::fuzz_mutex_id ... ok
[INFO] [stdout] test tests::test_mutex_id_conflict - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tracing-mutex
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/stdsync.rs - stdsync (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4a2cb7fef5e307314bbe38eae6a3f8051f54195675abe8a9fe64b57ebffc077d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a2cb7fef5e307314bbe38eae6a3f8051f54195675abe8a9fe64b57ebffc077d", kill_on_drop: false }`
[INFO] [stdout] 4a2cb7fef5e307314bbe38eae6a3f8051f54195675abe8a9fe64b57ebffc077d