[INFO] fetching crate treant 0.1.0...
[INFO] testing treant-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate treant 0.1.0 into /workspace/builds/worker-46/source
[INFO] validating manifest of crates.io crate treant 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 treant 0.1.0
[INFO] finished tweaking crates.io crate treant 0.1.0
[INFO] tweaked toml for crates.io crate treant 0.1.0 written to /workspace/builds/worker-46/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] 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-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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] 52308f0b75de49e7b1afa1eb90ab2c18a5a9d4f7406a8c2b07514008c20f1fc1
[INFO] running `Command { std: "docker" "start" "-a" "52308f0b75de49e7b1afa1eb90ab2c18a5a9d4f7406a8c2b07514008c20f1fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52308f0b75de49e7b1afa1eb90ab2c18a5a9d4f7406a8c2b07514008c20f1fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52308f0b75de49e7b1afa1eb90ab2c18a5a9d4f7406a8c2b07514008c20f1fc1", kill_on_drop: false }`
[INFO] [stdout] 52308f0b75de49e7b1afa1eb90ab2c18a5a9d4f7406a8c2b07514008c20f1fc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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] 1c4dca28b9f977403014d96773fef8d3335cc5112ecb111638409634d4e042e0
[INFO] running `Command { std: "docker" "start" "-a" "1c4dca28b9f977403014d96773fef8d3335cc5112ecb111638409634d4e042e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling treant v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "1c4dca28b9f977403014d96773fef8d3335cc5112ecb111638409634d4e042e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4dca28b9f977403014d96773fef8d3335cc5112ecb111638409634d4e042e0", kill_on_drop: false }`
[INFO] [stdout] 1c4dca28b9f977403014d96773fef8d3335cc5112ecb111638409634d4e042e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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] fe69707921f9e470fe31fe706df7af9327af8df98680c7bd02ddbbff998b9693
[INFO] running `Command { std: "docker" "start" "-a" "fe69707921f9e470fe31fe706df7af9327af8df98680c7bd02ddbbff998b9693", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling treant v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "fe69707921f9e470fe31fe706df7af9327af8df98680c7bd02ddbbff998b9693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe69707921f9e470fe31fe706df7af9327af8df98680c7bd02ddbbff998b9693", kill_on_drop: false }`
[INFO] [stdout] fe69707921f9e470fe31fe706df7af9327af8df98680c7bd02ddbbff998b9693
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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] 6f8967f13b48ab4faf725a71be18c3c629bd3ed652f71a2f6bfd270837f74cfe
[INFO] running `Command { std: "docker" "start" "-a" "6f8967f13b48ab4faf725a71be18c3c629bd3ed652f71a2f6bfd270837f74cfe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/treant-1742014ac2a8f9d1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[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 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests treant
[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" "6f8967f13b48ab4faf725a71be18c3c629bd3ed652f71a2f6bfd270837f74cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f8967f13b48ab4faf725a71be18c3c629bd3ed652f71a2f6bfd270837f74cfe", kill_on_drop: false }`
[INFO] [stdout] 6f8967f13b48ab4faf725a71be18c3c629bd3ed652f71a2f6bfd270837f74cfe