[INFO] cloning repository https://github.com/rehabaam/collatz-conjecture
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rehabaam/collatz-conjecture" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frehabaam%2Fcollatz-conjecture", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frehabaam%2Fcollatz-conjecture'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2cd41d045cbf0c4c8ab7ddf28dbe161c08458bd
[INFO] testing rehabaam/collatz-conjecture against 1.55.0 for beta-1.56-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frehabaam%2Fcollatz-conjecture" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rehabaam/collatz-conjecture 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/rehabaam/collatz-conjecture
[INFO] finished tweaking git repo https://github.com/rehabaam/collatz-conjecture
[INFO] tweaked toml for git repo https://github.com/rehabaam/collatz-conjecture written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/rehabaam/collatz-conjecture 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] b91f6de1daf0f623dbfaf0fc9a49e46034758e2b96c5ff6a08d9cfb7273aa034
[INFO] running `Command { std: "docker" "start" "-a" "b91f6de1daf0f623dbfaf0fc9a49e46034758e2b96c5ff6a08d9cfb7273aa034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b91f6de1daf0f623dbfaf0fc9a49e46034758e2b96c5ff6a08d9cfb7273aa034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b91f6de1daf0f623dbfaf0fc9a49e46034758e2b96c5ff6a08d9cfb7273aa034", kill_on_drop: false }`
[INFO] [stdout] b91f6de1daf0f623dbfaf0fc9a49e46034758e2b96c5ff6a08d9cfb7273aa034
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 1e5aeb9564d475223676b80437d0b69ce0fbeb249ff0df25e9d356d6ce26124b
[INFO] running `Command { std: "docker" "start" "-a" "1e5aeb9564d475223676b80437d0b69ce0fbeb249ff0df25e9d356d6ce26124b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling collatz-conjecture v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.54s
[INFO] running `Command { std: "docker" "inspect" "1e5aeb9564d475223676b80437d0b69ce0fbeb249ff0df25e9d356d6ce26124b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e5aeb9564d475223676b80437d0b69ce0fbeb249ff0df25e9d356d6ce26124b", kill_on_drop: false }`
[INFO] [stdout] 1e5aeb9564d475223676b80437d0b69ce0fbeb249ff0df25e9d356d6ce26124b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 487c976f4dbd9624dcecdcf351b03b3738a16ab9d2f2446ddce61074ba0eae15
[INFO] running `Command { std: "docker" "start" "-a" "487c976f4dbd9624dcecdcf351b03b3738a16ab9d2f2446ddce61074ba0eae15", kill_on_drop: false }`
[INFO] [stderr]    Compiling collatz-conjecture v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "487c976f4dbd9624dcecdcf351b03b3738a16ab9d2f2446ddce61074ba0eae15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "487c976f4dbd9624dcecdcf351b03b3738a16ab9d2f2446ddce61074ba0eae15", kill_on_drop: false }`
[INFO] [stdout] 487c976f4dbd9624dcecdcf351b03b3738a16ab9d2f2446ddce61074ba0eae15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e45a2ef53ddd4b59a29cad67863d5880d9ec86e7d41e1ec3668b508dab597325
[INFO] running `Command { std: "docker" "start" "-a" "e45a2ef53ddd4b59a29cad67863d5880d9ec86e7d41e1ec3668b508dab597325", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/collatz_conjecture-8a3fec2b8283f3bc)
[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" "e45a2ef53ddd4b59a29cad67863d5880d9ec86e7d41e1ec3668b508dab597325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e45a2ef53ddd4b59a29cad67863d5880d9ec86e7d41e1ec3668b508dab597325", kill_on_drop: false }`
[INFO] [stdout] e45a2ef53ddd4b59a29cad67863d5880d9ec86e7d41e1ec3668b508dab597325