[INFO] fetching crate minerva 0.0.1...
[INFO] testing minerva-0.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate minerva 0.0.1 into /workspace/builds/worker-74/source
[INFO] validating manifest of crates.io crate minerva 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 minerva 0.0.1
[INFO] finished tweaking crates.io crate minerva 0.0.1
[INFO] tweaked toml for crates.io crate minerva 0.0.1 written to /workspace/builds/worker-74/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-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] ed5fc5a45f70e95c39c95666a66744e0d838167ac1a2c24e026bafad950943e3
[INFO] running `Command { std: "docker" "start" "-a" "ed5fc5a45f70e95c39c95666a66744e0d838167ac1a2c24e026bafad950943e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed5fc5a45f70e95c39c95666a66744e0d838167ac1a2c24e026bafad950943e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed5fc5a45f70e95c39c95666a66744e0d838167ac1a2c24e026bafad950943e3", kill_on_drop: false }`
[INFO] [stdout] ed5fc5a45f70e95c39c95666a66744e0d838167ac1a2c24e026bafad950943e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] 0f3495749dc1b31edee82dd83afbb9505dfffcd618253103714ffa07d7113fb6
[INFO] running `Command { std: "docker" "start" "-a" "0f3495749dc1b31edee82dd83afbb9505dfffcd618253103714ffa07d7113fb6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling minerva v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "0f3495749dc1b31edee82dd83afbb9505dfffcd618253103714ffa07d7113fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f3495749dc1b31edee82dd83afbb9505dfffcd618253103714ffa07d7113fb6", kill_on_drop: false }`
[INFO] [stdout] 0f3495749dc1b31edee82dd83afbb9505dfffcd618253103714ffa07d7113fb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] f8e8283221eb4888bf0b95fbff7fbe980a438584e8d5865eb4abdaf3aca09e41
[INFO] running `Command { std: "docker" "start" "-a" "f8e8283221eb4888bf0b95fbff7fbe980a438584e8d5865eb4abdaf3aca09e41", kill_on_drop: false }`
[INFO] [stderr]    Compiling minerva v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "f8e8283221eb4888bf0b95fbff7fbe980a438584e8d5865eb4abdaf3aca09e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8e8283221eb4888bf0b95fbff7fbe980a438584e8d5865eb4abdaf3aca09e41", kill_on_drop: false }`
[INFO] [stdout] f8e8283221eb4888bf0b95fbff7fbe980a438584e8d5865eb4abdaf3aca09e41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] 81c2e9073c6abdd2fb3b9d86de88c606a50a92a49e617886cae55041f48a7d3a
[INFO] running `Command { std: "docker" "start" "-a" "81c2e9073c6abdd2fb3b9d86de88c606a50a92a49e617886cae55041f48a7d3a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/minerva-4e7640f4f8e1ed0f)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests minerva
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "81c2e9073c6abdd2fb3b9d86de88c606a50a92a49e617886cae55041f48a7d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81c2e9073c6abdd2fb3b9d86de88c606a50a92a49e617886cae55041f48a7d3a", kill_on_drop: false }`
[INFO] [stdout] 81c2e9073c6abdd2fb3b9d86de88c606a50a92a49e617886cae55041f48a7d3a