[INFO] fetching crate entangled 1.3.0...
[INFO] testing entangled-1.3.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate entangled 1.3.0 into /workspace/builds/worker-118/source
[INFO] validating manifest of crates.io crate entangled 1.3.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate entangled 1.3.0
[INFO] finished tweaking crates.io crate entangled 1.3.0
[INFO] tweaked toml for crates.io crate entangled 1.3.0 written to /workspace/builds/worker-118/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92134a131cc425d7c7694d9e76a8223860388166ee896dd6ba429b3a22fa5e27
[INFO] running `Command { std: "docker" "start" "-a" "92134a131cc425d7c7694d9e76a8223860388166ee896dd6ba429b3a22fa5e27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92134a131cc425d7c7694d9e76a8223860388166ee896dd6ba429b3a22fa5e27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92134a131cc425d7c7694d9e76a8223860388166ee896dd6ba429b3a22fa5e27", kill_on_drop: false }`
[INFO] [stdout] 92134a131cc425d7c7694d9e76a8223860388166ee896dd6ba429b3a22fa5e27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5c18a954425f355dc7662c6684f55325405402dec7ac4d9b8a58fda57c889cf
[INFO] running `Command { std: "docker" "start" "-a" "f5c18a954425f355dc7662c6684f55325405402dec7ac4d9b8a58fda57c889cf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cache-padded v1.2.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling async-task v4.1.0
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling event-listener v2.5.2
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling entangled v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `inner`
[INFO] [stdout]   --> src/lib.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     inner: Arc<ThreadPoolInner>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.59s
[INFO] running `Command { std: "docker" "inspect" "f5c18a954425f355dc7662c6684f55325405402dec7ac4d9b8a58fda57c889cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c18a954425f355dc7662c6684f55325405402dec7ac4d9b8a58fda57c889cf", kill_on_drop: false }`
[INFO] [stdout] f5c18a954425f355dc7662c6684f55325405402dec7ac4d9b8a58fda57c889cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65441a913744c12230efe6c7ba4140ca359aee882ec0512c48ef561f9ffc54e9
[INFO] running `Command { std: "docker" "start" "-a" "65441a913744c12230efe6c7ba4140ca359aee882ec0512c48ef561f9ffc54e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling semver v1.0.6
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling async-lock v2.5.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stdout] warning: field is never read: `inner`
[INFO] [stdout]   --> src/lib.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     inner: Arc<ThreadPoolInner>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling blocking v1.1.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling priority-queue v1.2.1
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.8
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling affinity v0.1.2
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling futures-intrusive v0.4.0
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling switchyard v0.2.1
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling polling v2.2.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling async-std v1.10.0
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling entangled v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `inner`
[INFO] [stdout]   --> src/lib.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     inner: Arc<ThreadPoolInner>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.88s
[INFO] running `Command { std: "docker" "inspect" "65441a913744c12230efe6c7ba4140ca359aee882ec0512c48ef561f9ffc54e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65441a913744c12230efe6c7ba4140ca359aee882ec0512c48ef561f9ffc54e9", kill_on_drop: false }`
[INFO] [stdout] 65441a913744c12230efe6c7ba4140ca359aee882ec0512c48ef561f9ffc54e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b5a57fd8762d745f553b76a01620f973bcf2a57381469993dc0c0a90ec2b4a26
[INFO] running `Command { std: "docker" "start" "-a" "b5a57fd8762d745f553b76a01620f973bcf2a57381469993dc0c0a90ec2b4a26", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `inner`
[INFO] [stdout] 
[INFO] [stderr]   --> src/lib.rs:99:5
[INFO] [stdout] running 3 tests
[INFO] [stderr]    |
[INFO] [stdout] test tests::test_task_spawn ... ok
[INFO] [stderr] 99 |     inner: Arc<ThreadPoolInner>,
[INFO] [stdout] test tests::test_scoped_spawn ... ok
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `entangled` (lib) generated 1 warning
[INFO] [stderr] warning: `entangled` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/entangled-ab76578819697760)
[INFO] [stdout] test tests::test_custom_handler ... ok
[INFO] [stderr]    Doc-tests entangled
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - ThreadPool::new (line 107) ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 7.09s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b5a57fd8762d745f553b76a01620f973bcf2a57381469993dc0c0a90ec2b4a26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5a57fd8762d745f553b76a01620f973bcf2a57381469993dc0c0a90ec2b4a26", kill_on_drop: false }`
[INFO] [stdout] b5a57fd8762d745f553b76a01620f973bcf2a57381469993dc0c0a90ec2b4a26