[INFO] fetching crate current 0.1.2...
[INFO] testing current-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate current 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate current 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 current 0.1.2
[INFO] finished tweaking crates.io crate current 0.1.2
[INFO] tweaked toml for crates.io crate current 0.1.2 written to /workspace/builds/worker-8/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] c517e169a91a3ceef8d8bdb71668665c7420b8b9ffa13cfc89fa94981d8ce405
[INFO] running `Command { std: "docker" "start" "-a" "c517e169a91a3ceef8d8bdb71668665c7420b8b9ffa13cfc89fa94981d8ce405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c517e169a91a3ceef8d8bdb71668665c7420b8b9ffa13cfc89fa94981d8ce405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c517e169a91a3ceef8d8bdb71668665c7420b8b9ffa13cfc89fa94981d8ce405", kill_on_drop: false }`
[INFO] [stdout] c517e169a91a3ceef8d8bdb71668665c7420b8b9ffa13cfc89fa94981d8ce405
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 1d6d1b106e8519dad53ae89bfbeea635e70545a09c2fc53d8be5223ebf2755d3
[INFO] running `Command { std: "docker" "start" "-a" "1d6d1b106e8519dad53ae89bfbeea635e70545a09c2fc53d8be5223ebf2755d3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling current v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "1d6d1b106e8519dad53ae89bfbeea635e70545a09c2fc53d8be5223ebf2755d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d6d1b106e8519dad53ae89bfbeea635e70545a09c2fc53d8be5223ebf2755d3", kill_on_drop: false }`
[INFO] [stdout] 1d6d1b106e8519dad53ae89bfbeea635e70545a09c2fc53d8be5223ebf2755d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 1f3f46f9f0884588472a70c6bb4649548d35c1e1ec63f108eb554577a6c16538
[INFO] running `Command { std: "docker" "start" "-a" "1f3f46f9f0884588472a70c6bb4649548d35c1e1ec63f108eb554577a6c16538", kill_on_drop: false }`
[INFO] [stderr]    Compiling current v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "1f3f46f9f0884588472a70c6bb4649548d35c1e1ec63f108eb554577a6c16538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f3f46f9f0884588472a70c6bb4649548d35c1e1ec63f108eb554577a6c16538", kill_on_drop: false }`
[INFO] [stdout] 1f3f46f9f0884588472a70c6bb4649548d35c1e1ec63f108eb554577a6c16538
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] c709e6e190f4758224e84d13e9a099246986be72d3e9704773d28098e3dcb60a
[INFO] running `Command { std: "docker" "start" "-a" "c709e6e190f4758224e84d13e9a099246986be72d3e9704773d28098e3dcb60a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/current-46680a7206a7cfce)
[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]    Doc-tests current
[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" "c709e6e190f4758224e84d13e9a099246986be72d3e9704773d28098e3dcb60a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c709e6e190f4758224e84d13e9a099246986be72d3e9704773d28098e3dcb60a", kill_on_drop: false }`
[INFO] [stdout] c709e6e190f4758224e84d13e9a099246986be72d3e9704773d28098e3dcb60a