[INFO] fetching crate bergwerk 0.1.0...
[INFO] testing bergwerk-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate bergwerk 0.1.0 into /workspace/builds/worker-51/source
[INFO] validating manifest of crates.io crate bergwerk 0.1.0 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 bergwerk 0.1.0
[INFO] finished tweaking crates.io crate bergwerk 0.1.0
[INFO] tweaked toml for crates.io crate bergwerk 0.1.0 written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate crates.io crate bergwerk 0.1.0 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] [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-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] 2b0440e495810d7336884fc60b4c584fc0bc9a0ae8d34c6f9d6e75419042327a
[INFO] running `Command { std: "docker" "start" "-a" "2b0440e495810d7336884fc60b4c584fc0bc9a0ae8d34c6f9d6e75419042327a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b0440e495810d7336884fc60b4c584fc0bc9a0ae8d34c6f9d6e75419042327a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b0440e495810d7336884fc60b4c584fc0bc9a0ae8d34c6f9d6e75419042327a", kill_on_drop: false }`
[INFO] [stdout] 2b0440e495810d7336884fc60b4c584fc0bc9a0ae8d34c6f9d6e75419042327a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] 6b755e2f5a8f49cb6f5f9ce85e9828a0aecc90cf7d8a5066294b6156b4262f56
[INFO] running `Command { std: "docker" "start" "-a" "6b755e2f5a8f49cb6f5f9ce85e9828a0aecc90cf7d8a5066294b6156b4262f56", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]    Compiling structopt v0.3.22
[INFO] [stderr]    Compiling bergwerk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.69s
[INFO] running `Command { std: "docker" "inspect" "6b755e2f5a8f49cb6f5f9ce85e9828a0aecc90cf7d8a5066294b6156b4262f56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b755e2f5a8f49cb6f5f9ce85e9828a0aecc90cf7d8a5066294b6156b4262f56", kill_on_drop: false }`
[INFO] [stdout] 6b755e2f5a8f49cb6f5f9ce85e9828a0aecc90cf7d8a5066294b6156b4262f56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] 0a0390c05c6f8b2790147afab6cfd69fe1611c0e1821f1615259fa2836a83a11
[INFO] running `Command { std: "docker" "start" "-a" "0a0390c05c6f8b2790147afab6cfd69fe1611c0e1821f1615259fa2836a83a11", kill_on_drop: false }`
[INFO] [stderr]    Compiling bergwerk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "0a0390c05c6f8b2790147afab6cfd69fe1611c0e1821f1615259fa2836a83a11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a0390c05c6f8b2790147afab6cfd69fe1611c0e1821f1615259fa2836a83a11", kill_on_drop: false }`
[INFO] [stdout] 0a0390c05c6f8b2790147afab6cfd69fe1611c0e1821f1615259fa2836a83a11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] d7f71244a6b33464e98368d5e98bf0d9e4f4301e7c686bb912fd57a51361a628
[INFO] running `Command { std: "docker" "start" "-a" "d7f71244a6b33464e98368d5e98bf0d9e4f4301e7c686bb912fd57a51361a628", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bergwerk-04763d8f6fb257c4)
[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" "d7f71244a6b33464e98368d5e98bf0d9e4f4301e7c686bb912fd57a51361a628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7f71244a6b33464e98368d5e98bf0d9e4f4301e7c686bb912fd57a51361a628", kill_on_drop: false }`
[INFO] [stdout] d7f71244a6b33464e98368d5e98bf0d9e4f4301e7c686bb912fd57a51361a628