[INFO] fetching crate scoped_spawn 0.2.1...
[INFO] testing scoped_spawn-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate scoped_spawn 0.2.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate scoped_spawn 0.2.1 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 scoped_spawn 0.2.1
[INFO] finished tweaking crates.io crate scoped_spawn 0.2.1
[INFO] tweaked toml for crates.io crate scoped_spawn 0.2.1 written to /workspace/builds/worker-14/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] 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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 5296cc4b6e9741d12b4915bedea43b0715c5503c3ee5c76a36eb2af7ccee899b
[INFO] running `Command { std: "docker" "start" "-a" "5296cc4b6e9741d12b4915bedea43b0715c5503c3ee5c76a36eb2af7ccee899b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5296cc4b6e9741d12b4915bedea43b0715c5503c3ee5c76a36eb2af7ccee899b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5296cc4b6e9741d12b4915bedea43b0715c5503c3ee5c76a36eb2af7ccee899b", kill_on_drop: false }`
[INFO] [stdout] 5296cc4b6e9741d12b4915bedea43b0715c5503c3ee5c76a36eb2af7ccee899b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 2bfa0127f2502d7ebbfadc28144ab3a5e47887ad370756d7b564d9fb6b45c71c
[INFO] running `Command { std: "docker" "start" "-a" "2bfa0127f2502d7ebbfadc28144ab3a5e47887ad370756d7b564d9fb6b45c71c", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling scoped_spawn v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "2bfa0127f2502d7ebbfadc28144ab3a5e47887ad370756d7b564d9fb6b45c71c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bfa0127f2502d7ebbfadc28144ab3a5e47887ad370756d7b564d9fb6b45c71c", kill_on_drop: false }`
[INFO] [stdout] 2bfa0127f2502d7ebbfadc28144ab3a5e47887ad370756d7b564d9fb6b45c71c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 6f40820bc05cd371db8e3755f6b5f8848302c47ae768383dd220af0a56074b05
[INFO] running `Command { std: "docker" "start" "-a" "6f40820bc05cd371db8e3755f6b5f8848302c47ae768383dd220af0a56074b05", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling scoped_spawn v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.90s
[INFO] running `Command { std: "docker" "inspect" "6f40820bc05cd371db8e3755f6b5f8848302c47ae768383dd220af0a56074b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f40820bc05cd371db8e3755f6b5f8848302c47ae768383dd220af0a56074b05", kill_on_drop: false }`
[INFO] [stdout] 6f40820bc05cd371db8e3755f6b5f8848302c47ae768383dd220af0a56074b05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] d0bb158dc814e01355bf2b032e82013b0bcb2ecb17a3599949cac2424d45511e
[INFO] running `Command { std: "docker" "start" "-a" "d0bb158dc814e01355bf2b032e82013b0bcb2ecb17a3599949cac2424d45511e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/scoped_spawn-7e65bde9403af33a)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests scoped_spawn
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 59) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.26s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d0bb158dc814e01355bf2b032e82013b0bcb2ecb17a3599949cac2424d45511e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0bb158dc814e01355bf2b032e82013b0bcb2ecb17a3599949cac2424d45511e", kill_on_drop: false }`
[INFO] [stdout] d0bb158dc814e01355bf2b032e82013b0bcb2ecb17a3599949cac2424d45511e