[INFO] cloning repository https://github.com/tlafebre/christmas_carol
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tlafebre/christmas_carol" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftlafebre%2Fchristmas_carol", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftlafebre%2Fchristmas_carol'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be320688a767095838e9c15f751dcb803c4e639d
[INFO] testing tlafebre/christmas_carol against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftlafebre%2Fchristmas_carol" "/workspace/builds/worker-84/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-84/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tlafebre/christmas_carol 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 git repo https://github.com/tlafebre/christmas_carol
[INFO] finished tweaking git repo https://github.com/tlafebre/christmas_carol
[INFO] tweaked toml for git repo https://github.com/tlafebre/christmas_carol written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] crate git repo https://github.com/tlafebre/christmas_carol 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-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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] 7ef12ba18634367614e6ce6610b9a759a51231de824f77dbb86b0303714f114f
[INFO] running `Command { std: "docker" "start" "-a" "7ef12ba18634367614e6ce6610b9a759a51231de824f77dbb86b0303714f114f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ef12ba18634367614e6ce6610b9a759a51231de824f77dbb86b0303714f114f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef12ba18634367614e6ce6610b9a759a51231de824f77dbb86b0303714f114f", kill_on_drop: false }`
[INFO] [stdout] 7ef12ba18634367614e6ce6610b9a759a51231de824f77dbb86b0303714f114f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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] f2a3376c2fe0ffda9c05695b3c168b1c3a81adc34f4e85e323cbad6aa2c55932
[INFO] running `Command { std: "docker" "start" "-a" "f2a3376c2fe0ffda9c05695b3c168b1c3a81adc34f4e85e323cbad6aa2c55932", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling christmas_carol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.60s
[INFO] running `Command { std: "docker" "inspect" "f2a3376c2fe0ffda9c05695b3c168b1c3a81adc34f4e85e323cbad6aa2c55932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2a3376c2fe0ffda9c05695b3c168b1c3a81adc34f4e85e323cbad6aa2c55932", kill_on_drop: false }`
[INFO] [stdout] f2a3376c2fe0ffda9c05695b3c168b1c3a81adc34f4e85e323cbad6aa2c55932
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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] 36e66eaef2b3c977218aab82fac3a58ac84959c3a5473629c34b901ea918dc5a
[INFO] running `Command { std: "docker" "start" "-a" "36e66eaef2b3c977218aab82fac3a58ac84959c3a5473629c34b901ea918dc5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling christmas_carol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "36e66eaef2b3c977218aab82fac3a58ac84959c3a5473629c34b901ea918dc5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36e66eaef2b3c977218aab82fac3a58ac84959c3a5473629c34b901ea918dc5a", kill_on_drop: false }`
[INFO] [stdout] 36e66eaef2b3c977218aab82fac3a58ac84959c3a5473629c34b901ea918dc5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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] 1919e5671e1be93c4390892b34f8c93ef7dd17a0699af4c53cc4b503a5f94ad5
[INFO] running `Command { std: "docker" "start" "-a" "1919e5671e1be93c4390892b34f8c93ef7dd17a0699af4c53cc4b503a5f94ad5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/christmas_carol-8f499805938df53b)
[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" "1919e5671e1be93c4390892b34f8c93ef7dd17a0699af4c53cc4b503a5f94ad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1919e5671e1be93c4390892b34f8c93ef7dd17a0699af4c53cc4b503a5f94ad5", kill_on_drop: false }`
[INFO] [stdout] 1919e5671e1be93c4390892b34f8c93ef7dd17a0699af4c53cc4b503a5f94ad5