[INFO] fetching crate tracing-mutex 0.1.2...
[INFO] testing tracing-mutex-0.1.2 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate tracing-mutex 0.1.2 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate tracing-mutex 0.1.2 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1251c28cf9251e1bcbf5cc66318514e6239c2b742bec5103cb0fb55c27307ac3
[INFO] running `Command { std: "docker" "start" "-a" "1251c28cf9251e1bcbf5cc66318514e6239c2b742bec5103cb0fb55c27307ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1251c28cf9251e1bcbf5cc66318514e6239c2b742bec5103cb0fb55c27307ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1251c28cf9251e1bcbf5cc66318514e6239c2b742bec5103cb0fb55c27307ac3", kill_on_drop: false }`
[INFO] [stdout] 1251c28cf9251e1bcbf5cc66318514e6239c2b742bec5103cb0fb55c27307ac3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d078da3c66aad9042b54944af48a81fb700b26230bd91eff97db8575cc2082dd
[INFO] running `Command { std: "docker" "start" "-a" "d078da3c66aad9042b54944af48a81fb700b26230bd91eff97db8575cc2082dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-mutex v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::array::IntoIter::<T, N>::new`: use `IntoIterator::into_iter` instead
[INFO] [stdout]    --> src/graph.rs:119:41
[INFO] [stdout]     |
[INFO] [stdout] 119 |             let mut visited = IntoIter::new([x, y]).collect();
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mutex`
[INFO] [stdout]    --> src/stdsync.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     mutex: BorrowedMutex<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `TracingMutexGuard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/stdsync.rs:97:10
[INFO] [stdout]     |
[INFO] [stdout] 97  | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mutex`
[INFO] [stdout]    --> src/stdsync.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 230 |     mutex: BorrowedMutex<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `TracingRwLockGuard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/stdsync.rs:227:10
[INFO] [stdout]     |
[INFO] [stdout] 227 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "d078da3c66aad9042b54944af48a81fb700b26230bd91eff97db8575cc2082dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d078da3c66aad9042b54944af48a81fb700b26230bd91eff97db8575cc2082dd", kill_on_drop: false }`
[INFO] [stdout] d078da3c66aad9042b54944af48a81fb700b26230bd91eff97db8575cc2082dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b415403d5cba7d0b119ebab3079dba2fc8a8816dd7e9d236c4f0dec3592d93f1
[INFO] running `Command { std: "docker" "start" "-a" "b415403d5cba7d0b119ebab3079dba2fc8a8816dd7e9d236c4f0dec3592d93f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stdout] warning: use of deprecated associated function `std::array::IntoIter::<T, N>::new`: use `IntoIterator::into_iter` instead
[INFO] [stdout]    --> src/graph.rs:119:41
[INFO] [stdout]     |
[INFO] [stdout] 119 |             let mut visited = IntoIter::new([x, y]).collect();
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mutex`
[INFO] [stdout]    --> src/stdsync.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     mutex: BorrowedMutex<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `TracingMutexGuard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/stdsync.rs:97:10
[INFO] [stdout]     |
[INFO] [stdout] 97  | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mutex`
[INFO] [stdout]    --> src/stdsync.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 230 |     mutex: BorrowedMutex<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `TracingRwLockGuard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/stdsync.rs:227:10
[INFO] [stdout]     |
[INFO] [stdout] 227 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tracing-mutex v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::array::IntoIter::<T, N>::new`: use `IntoIterator::into_iter` instead
[INFO] [stdout]    --> src/graph.rs:119:41
[INFO] [stdout]     |
[INFO] [stdout] 119 |             let mut visited = IntoIter::new([x, y]).collect();
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mutex`
[INFO] [stdout]    --> src/stdsync.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     mutex: BorrowedMutex<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `TracingMutexGuard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/stdsync.rs:97:10
[INFO] [stdout]     |
[INFO] [stdout] 97  | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mutex`
[INFO] [stdout]    --> src/stdsync.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 230 |     mutex: BorrowedMutex<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `TracingRwLockGuard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/stdsync.rs:227:10
[INFO] [stdout]     |
[INFO] [stdout] 227 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.90s
[INFO] running `Command { std: "docker" "inspect" "b415403d5cba7d0b119ebab3079dba2fc8a8816dd7e9d236c4f0dec3592d93f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b415403d5cba7d0b119ebab3079dba2fc8a8816dd7e9d236c4f0dec3592d93f1", kill_on_drop: false }`
[INFO] [stdout] b415403d5cba7d0b119ebab3079dba2fc8a8816dd7e9d236c4f0dec3592d93f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8fc0eda1a2168caf5f746c4d54b4f4d5b8db261e008b6db51ed956e71fb22678
[INFO] running `Command { std: "docker" "start" "-a" "8fc0eda1a2168caf5f746c4d54b4f4d5b8db261e008b6db51ed956e71fb22678", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: use of deprecated associated function `std::array::IntoIter::<T, N>::new`: use `IntoIterator::into_iter` instead
[INFO] [stdout] running 10 tests
[INFO] [stderr]    --> src/graph.rs:119:41
[INFO] [stderr]     |
[INFO] [stderr] 119 |             let mut visited = IntoIter::new([x, y]).collect();
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `mutex`
[INFO] [stderr]    --> src/stdsync.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     mutex: BorrowedMutex<'a>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `TracingMutexGuard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/stdsync.rs:97:10
[INFO] [stderr]     |
[INFO] [stderr] 97  | #[derive(Debug)]
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `mutex`
[INFO] [stderr]    --> src/stdsync.rs:230:5
[INFO] [stderr]     |
[INFO] [stderr] 230 |     mutex: BorrowedMutex<'a>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `TracingRwLockGuard` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/stdsync.rs:227:10
[INFO] [stderr]     |
[INFO] [stderr] 227 | #[derive(Debug)]
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `tracing-mutex` (lib) generated 3 warnings
[INFO] [stderr] warning: `tracing-mutex` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tracing_mutex-ad65f2d7e2ac2bf4)
[INFO] [stdout] test graph::tests::test_digraph ... ok
[INFO] [stdout] test stdsync::tests::test_detect_cycle - should panic ... ok
[INFO] [stdout] test tests::test_lazy_mutex_id ... ok
[INFO] [stdout] test stdsync::tests::test_mutex_usage ... ok
[INFO] [stdout] test tests::test_next_mutex_id ... ok
[INFO] [stdout] test stdsync::tests::test_once_usage ... ok
[INFO] [stdout] test tests::test_mutex_id_conflict - should panic ... ok
[INFO] [stdout] test stdsync::tests::test_rwlock_usage ... ok
[INFO] [stdout] test graph::tests::fuzz_digraph ... ok
[INFO] [stdout] test tests::fuzz_mutex_id ... 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 0.29s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8fc0eda1a2168caf5f746c4d54b4f4d5b8db261e008b6db51ed956e71fb22678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc0eda1a2168caf5f746c4d54b4f4d5b8db261e008b6db51ed956e71fb22678", kill_on_drop: false }`
[INFO] [stdout] 8fc0eda1a2168caf5f746c4d54b4f4d5b8db261e008b6db51ed956e71fb22678