[INFO] fetching crate vblk 0.1.2...
[INFO] testing vblk-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate vblk 0.1.2 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate vblk 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 vblk 0.1.2
[INFO] finished tweaking crates.io crate vblk 0.1.2
[INFO] tweaked toml for crates.io crate vblk 0.1.2 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate vblk 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] e47869b6987d0ac329b870e5715e9db2031ff47b3c09b420627519bd89cde1a6
[INFO] running `Command { std: "docker" "start" "-a" "e47869b6987d0ac329b870e5715e9db2031ff47b3c09b420627519bd89cde1a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e47869b6987d0ac329b870e5715e9db2031ff47b3c09b420627519bd89cde1a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e47869b6987d0ac329b870e5715e9db2031ff47b3c09b420627519bd89cde1a6", kill_on_drop: false }`
[INFO] [stdout] e47869b6987d0ac329b870e5715e9db2031ff47b3c09b420627519bd89cde1a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] bdbf6fe0378de45b62e2183b9dbbfc7fdd82b1ec585f29809fe1e8d8a84abaa4
[INFO] running `Command { std: "docker" "start" "-a" "bdbf6fe0378de45b62e2183b9dbbfc7fdd82b1ec585f29809fe1e8d8a84abaa4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling zerocopy-derive v0.1.4
[INFO] [stderr]    Compiling zerocopy v0.2.8
[INFO] [stderr]    Compiling vblk v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.70s
[INFO] running `Command { std: "docker" "inspect" "bdbf6fe0378de45b62e2183b9dbbfc7fdd82b1ec585f29809fe1e8d8a84abaa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdbf6fe0378de45b62e2183b9dbbfc7fdd82b1ec585f29809fe1e8d8a84abaa4", kill_on_drop: false }`
[INFO] [stdout] bdbf6fe0378de45b62e2183b9dbbfc7fdd82b1ec585f29809fe1e8d8a84abaa4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] c227fb9374f6345e28547801145b3c0e1a9910ab6d3e5f076f25f9db6d47c89f
[INFO] running `Command { std: "docker" "start" "-a" "c227fb9374f6345e28547801145b3c0e1a9910ab6d3e5f076f25f9db6d47c89f", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling ctrlc v3.1.3
[INFO] [stderr]    Compiling vblk v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.17s
[INFO] running `Command { std: "docker" "inspect" "c227fb9374f6345e28547801145b3c0e1a9910ab6d3e5f076f25f9db6d47c89f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c227fb9374f6345e28547801145b3c0e1a9910ab6d3e5f076f25f9db6d47c89f", kill_on_drop: false }`
[INFO] [stdout] c227fb9374f6345e28547801145b3c0e1a9910ab6d3e5f076f25f9db6d47c89f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 28e553bf880d20ccb2230d9a982d3584dc3fa7f763654a03b00feaa20b78dfb2
[INFO] running `Command { std: "docker" "start" "-a" "28e553bf880d20ccb2230d9a982d3584dc3fa7f763654a03b00feaa20b78dfb2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vblk-08ecfc276ce6e363)
[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 vblk
[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" "28e553bf880d20ccb2230d9a982d3584dc3fa7f763654a03b00feaa20b78dfb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28e553bf880d20ccb2230d9a982d3584dc3fa7f763654a03b00feaa20b78dfb2", kill_on_drop: false }`
[INFO] [stdout] 28e553bf880d20ccb2230d9a982d3584dc3fa7f763654a03b00feaa20b78dfb2