[INFO] fetching crate park 0.0.1...
[INFO] testing park-0.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate park 0.0.1 into /workspace/builds/worker-83/source
[INFO] validating manifest of crates.io crate park 0.0.1 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 park 0.0.1
[INFO] finished tweaking crates.io crate park 0.0.1
[INFO] tweaked toml for crates.io crate park 0.0.1 written to /workspace/builds/worker-83/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-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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] 24a2f17fcb805b777feaac6e8eafa1e4fa04db86bdb8f2ddcab58b60b30f5587
[INFO] running `Command { std: "docker" "start" "-a" "24a2f17fcb805b777feaac6e8eafa1e4fa04db86bdb8f2ddcab58b60b30f5587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24a2f17fcb805b777feaac6e8eafa1e4fa04db86bdb8f2ddcab58b60b30f5587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24a2f17fcb805b777feaac6e8eafa1e4fa04db86bdb8f2ddcab58b60b30f5587", kill_on_drop: false }`
[INFO] [stdout] 24a2f17fcb805b777feaac6e8eafa1e4fa04db86bdb8f2ddcab58b60b30f5587
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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] 1f882ed806db8b5fb29a5fa40b3db744456278cf385688995e5def8f5c938a8d
[INFO] running `Command { std: "docker" "start" "-a" "1f882ed806db8b5fb29a5fa40b3db744456278cf385688995e5def8f5c938a8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling park v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.33s
[INFO] running `Command { std: "docker" "inspect" "1f882ed806db8b5fb29a5fa40b3db744456278cf385688995e5def8f5c938a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f882ed806db8b5fb29a5fa40b3db744456278cf385688995e5def8f5c938a8d", kill_on_drop: false }`
[INFO] [stdout] 1f882ed806db8b5fb29a5fa40b3db744456278cf385688995e5def8f5c938a8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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] b179905439dfc971e06c45f239142f12fa1bc2d7d75c1562e3e2b8ee4c5e1ab1
[INFO] running `Command { std: "docker" "start" "-a" "b179905439dfc971e06c45f239142f12fa1bc2d7d75c1562e3e2b8ee4c5e1ab1", kill_on_drop: false }`
[INFO] [stderr]    Compiling park v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "b179905439dfc971e06c45f239142f12fa1bc2d7d75c1562e3e2b8ee4c5e1ab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b179905439dfc971e06c45f239142f12fa1bc2d7d75c1562e3e2b8ee4c5e1ab1", kill_on_drop: false }`
[INFO] [stdout] b179905439dfc971e06c45f239142f12fa1bc2d7d75c1562e3e2b8ee4c5e1ab1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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] feeeeacfca65dbd089370135cb51ca8103f6a0dc29f4c6a771b62b0037f62610
[INFO] running `Command { std: "docker" "start" "-a" "feeeeacfca65dbd089370135cb51ca8103f6a0dc29f4c6a771b62b0037f62610", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/park-e793c0b22c03658d)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/park-4f5e84c8e3a60db5)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests park
[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 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" "feeeeacfca65dbd089370135cb51ca8103f6a0dc29f4c6a771b62b0037f62610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feeeeacfca65dbd089370135cb51ca8103f6a0dc29f4c6a771b62b0037f62610", kill_on_drop: false }`
[INFO] [stdout] feeeeacfca65dbd089370135cb51ca8103f6a0dc29f4c6a771b62b0037f62610