[INFO] fetching crate fluvial-ferris 0.0.0...
[INFO] testing fluvial-ferris-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate fluvial-ferris 0.0.0 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate fluvial-ferris 0.0.0 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 fluvial-ferris 0.0.0
[INFO] finished tweaking crates.io crate fluvial-ferris 0.0.0
[INFO] tweaked toml for crates.io crate fluvial-ferris 0.0.0 written to /workspace/builds/worker-54/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-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 5f4a0281e5560b12ac2a28d31c48e3761423d62303debd2abc2e999074aedb82
[INFO] running `Command { std: "docker" "start" "-a" "5f4a0281e5560b12ac2a28d31c48e3761423d62303debd2abc2e999074aedb82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f4a0281e5560b12ac2a28d31c48e3761423d62303debd2abc2e999074aedb82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4a0281e5560b12ac2a28d31c48e3761423d62303debd2abc2e999074aedb82", kill_on_drop: false }`
[INFO] [stdout] 5f4a0281e5560b12ac2a28d31c48e3761423d62303debd2abc2e999074aedb82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 0a739da4d4d4c853ec9dfd0fe1318af4ec10810db531b13e1bfe4127ba2922d9
[INFO] running `Command { std: "docker" "start" "-a" "0a739da4d4d4c853ec9dfd0fe1318af4ec10810db531b13e1bfe4127ba2922d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling fluvial-ferris v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "0a739da4d4d4c853ec9dfd0fe1318af4ec10810db531b13e1bfe4127ba2922d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a739da4d4d4c853ec9dfd0fe1318af4ec10810db531b13e1bfe4127ba2922d9", kill_on_drop: false }`
[INFO] [stdout] 0a739da4d4d4c853ec9dfd0fe1318af4ec10810db531b13e1bfe4127ba2922d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 9cefe6cf189693de1934d2d8ce4fd50590acffaae532ea058859c22902638ccb
[INFO] running `Command { std: "docker" "start" "-a" "9cefe6cf189693de1934d2d8ce4fd50590acffaae532ea058859c22902638ccb", kill_on_drop: false }`
[INFO] [stderr]    Compiling fluvial-ferris v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "9cefe6cf189693de1934d2d8ce4fd50590acffaae532ea058859c22902638ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cefe6cf189693de1934d2d8ce4fd50590acffaae532ea058859c22902638ccb", kill_on_drop: false }`
[INFO] [stdout] 9cefe6cf189693de1934d2d8ce4fd50590acffaae532ea058859c22902638ccb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 5050b27117d3fa34a2915f047b6747b690d4d621aa9e5169066b5845e94bf175
[INFO] running `Command { std: "docker" "start" "-a" "5050b27117d3fa34a2915f047b6747b690d4d621aa9e5169066b5845e94bf175", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fluvial_ferris-c661999c86e4adc3)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fluvial-ferris
[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] [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" "5050b27117d3fa34a2915f047b6747b690d4d621aa9e5169066b5845e94bf175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5050b27117d3fa34a2915f047b6747b690d4d621aa9e5169066b5845e94bf175", kill_on_drop: false }`
[INFO] [stdout] 5050b27117d3fa34a2915f047b6747b690d4d621aa9e5169066b5845e94bf175