[INFO] cloning repository https://github.com/WhiffyMuffinz/collatz-conj-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WhiffyMuffinz/collatz-conj-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWhiffyMuffinz%2Fcollatz-conj-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWhiffyMuffinz%2Fcollatz-conj-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 792ce0e0179a24f97ec12e21402785c82705c183
[INFO] testing WhiffyMuffinz/collatz-conj-rs against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWhiffyMuffinz%2Fcollatz-conj-rs" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WhiffyMuffinz/collatz-conj-rs on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/WhiffyMuffinz/collatz-conj-rs
[INFO] finished tweaking git repo https://github.com/WhiffyMuffinz/collatz-conj-rs
[INFO] tweaked toml for git repo https://github.com/WhiffyMuffinz/collatz-conj-rs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/WhiffyMuffinz/collatz-conj-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 185700db96884b65f3ab2155e9b189bc135bd5ca071e2db78ac3d7ef992ab22f
[INFO] running `Command { std: "docker" "start" "-a" "185700db96884b65f3ab2155e9b189bc135bd5ca071e2db78ac3d7ef992ab22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "185700db96884b65f3ab2155e9b189bc135bd5ca071e2db78ac3d7ef992ab22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "185700db96884b65f3ab2155e9b189bc135bd5ca071e2db78ac3d7ef992ab22f", kill_on_drop: false }`
[INFO] [stdout] 185700db96884b65f3ab2155e9b189bc135bd5ca071e2db78ac3d7ef992ab22f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9f5da3f71f12e456cbb7a95fd7c233ed7cf8ea8502f83c3696ae86ef4dbca64
[INFO] running `Command { std: "docker" "start" "-a" "a9f5da3f71f12e456cbb7a95fd7c233ed7cf8ea8502f83c3696ae86ef4dbca64", kill_on_drop: false }`
[INFO] [stderr]    Compiling collatz-conj-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "a9f5da3f71f12e456cbb7a95fd7c233ed7cf8ea8502f83c3696ae86ef4dbca64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9f5da3f71f12e456cbb7a95fd7c233ed7cf8ea8502f83c3696ae86ef4dbca64", kill_on_drop: false }`
[INFO] [stdout] a9f5da3f71f12e456cbb7a95fd7c233ed7cf8ea8502f83c3696ae86ef4dbca64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 289b90aaff08d34b6e4119b90c4a8c8d91d7e551ed17070461b1ed4c78538967
[INFO] running `Command { std: "docker" "start" "-a" "289b90aaff08d34b6e4119b90c4a8c8d91d7e551ed17070461b1ed4c78538967", kill_on_drop: false }`
[INFO] [stderr]    Compiling collatz-conj-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "289b90aaff08d34b6e4119b90c4a8c8d91d7e551ed17070461b1ed4c78538967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "289b90aaff08d34b6e4119b90c4a8c8d91d7e551ed17070461b1ed4c78538967", kill_on_drop: false }`
[INFO] [stdout] 289b90aaff08d34b6e4119b90c4a8c8d91d7e551ed17070461b1ed4c78538967
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee47bc0fae812ecbdd291ed260d7bf6c97c0f7b3961c4e4be3f4df09b19f02a6
[INFO] running `Command { std: "docker" "start" "-a" "ee47bc0fae812ecbdd291ed260d7bf6c97c0f7b3961c4e4be3f4df09b19f02a6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/collatz_conj_rs-90eee6f0a385d5b0)
[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" "ee47bc0fae812ecbdd291ed260d7bf6c97c0f7b3961c4e4be3f4df09b19f02a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee47bc0fae812ecbdd291ed260d7bf6c97c0f7b3961c4e4be3f4df09b19f02a6", kill_on_drop: false }`
[INFO] [stdout] ee47bc0fae812ecbdd291ed260d7bf6c97c0f7b3961c4e4be3f4df09b19f02a6