[INFO] fetching crate parameter 0.1.2...
[INFO] testing parameter-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate parameter 0.1.2 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate parameter 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 parameter 0.1.2
[INFO] finished tweaking crates.io crate parameter 0.1.2
[INFO] tweaked toml for crates.io crate parameter 0.1.2 written to /workspace/builds/worker-76/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-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 6450cfe35314ac7160c68f0ec43d3bcc02c9980103a313b783b5d9bb2156f772
[INFO] running `Command { std: "docker" "start" "-a" "6450cfe35314ac7160c68f0ec43d3bcc02c9980103a313b783b5d9bb2156f772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6450cfe35314ac7160c68f0ec43d3bcc02c9980103a313b783b5d9bb2156f772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6450cfe35314ac7160c68f0ec43d3bcc02c9980103a313b783b5d9bb2156f772", kill_on_drop: false }`
[INFO] [stdout] 6450cfe35314ac7160c68f0ec43d3bcc02c9980103a313b783b5d9bb2156f772
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 93a3bcb3d19afc8be2a30c28d7cfeb9f0f2a1eb4a9c744bc6191ac90aa6adff1
[INFO] running `Command { std: "docker" "start" "-a" "93a3bcb3d19afc8be2a30c28d7cfeb9f0f2a1eb4a9c744bc6191ac90aa6adff1", kill_on_drop: false }`
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling arc-swap v1.3.2
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling parameter v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "93a3bcb3d19afc8be2a30c28d7cfeb9f0f2a1eb4a9c744bc6191ac90aa6adff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93a3bcb3d19afc8be2a30c28d7cfeb9f0f2a1eb4a9c744bc6191ac90aa6adff1", kill_on_drop: false }`
[INFO] [stdout] 93a3bcb3d19afc8be2a30c28d7cfeb9f0f2a1eb4a9c744bc6191ac90aa6adff1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] ce37837b4e29fec0216e7eca7408ef4aecfc1d4854914b3b49ce2dadd75b7e53
[INFO] running `Command { std: "docker" "start" "-a" "ce37837b4e29fec0216e7eca7408ef4aecfc1d4854914b3b49ce2dadd75b7e53", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling parameter v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "ce37837b4e29fec0216e7eca7408ef4aecfc1d4854914b3b49ce2dadd75b7e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce37837b4e29fec0216e7eca7408ef4aecfc1d4854914b3b49ce2dadd75b7e53", kill_on_drop: false }`
[INFO] [stdout] ce37837b4e29fec0216e7eca7408ef4aecfc1d4854914b3b49ce2dadd75b7e53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] dadd4b3984a9f7c6004c433dc3a3ae2b83bc3ad56db80b18c9fa0058b76e0e33
[INFO] running `Command { std: "docker" "start" "-a" "dadd4b3984a9f7c6004c433dc3a3ae2b83bc3ad56db80b18c9fa0058b76e0e33", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/parameter-1918110c7e645c59)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests parameter
[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" "dadd4b3984a9f7c6004c433dc3a3ae2b83bc3ad56db80b18c9fa0058b76e0e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dadd4b3984a9f7c6004c433dc3a3ae2b83bc3ad56db80b18c9fa0058b76e0e33", kill_on_drop: false }`
[INFO] [stdout] dadd4b3984a9f7c6004c433dc3a3ae2b83bc3ad56db80b18c9fa0058b76e0e33