[INFO] fetching crate collatz 0.3.2...
[INFO] testing collatz-0.3.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate collatz 0.3.2 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate collatz 0.3.2 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 crates.io crate collatz 0.3.2
[INFO] finished tweaking crates.io crate collatz 0.3.2
[INFO] tweaked toml for crates.io crate collatz 0.3.2 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate collatz 0.3.2 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]  Downloading crates ...
[INFO] [stderr]   Downloaded meval v0.2.0
[INFO] [stderr]   Downloaded drawille v0.3.0
[INFO] [stderr]   Downloaded textplots v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 0b4a17d3f9e3268fee3543b0cda6a39574ef8bf0c4ae495561b45ad4c919b39f
[INFO] running `Command { std: "docker" "start" "-a" "0b4a17d3f9e3268fee3543b0cda6a39574ef8bf0c4ae495561b45ad4c919b39f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b4a17d3f9e3268fee3543b0cda6a39574ef8bf0c4ae495561b45ad4c919b39f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b4a17d3f9e3268fee3543b0cda6a39574ef8bf0c4ae495561b45ad4c919b39f", kill_on_drop: false }`
[INFO] [stdout] 0b4a17d3f9e3268fee3543b0cda6a39574ef8bf0c4ae495561b45ad4c919b39f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] a446e6e89e0a14f9c01a705ba6d47e07f9546baf4daaeec6d52855382ba0ed41
[INFO] running `Command { std: "docker" "start" "-a" "a446e6e89e0a14f9c01a705ba6d47e07f9546baf4daaeec6d52855382ba0ed41", kill_on_drop: false }`
[INFO] [stderr]    Compiling collatz v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "a446e6e89e0a14f9c01a705ba6d47e07f9546baf4daaeec6d52855382ba0ed41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a446e6e89e0a14f9c01a705ba6d47e07f9546baf4daaeec6d52855382ba0ed41", kill_on_drop: false }`
[INFO] [stdout] a446e6e89e0a14f9c01a705ba6d47e07f9546baf4daaeec6d52855382ba0ed41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 56954512d5386518b98cf89d9851f66b3bedb735544d92107e743df5eaacbd87
[INFO] running `Command { std: "docker" "start" "-a" "56954512d5386518b98cf89d9851f66b3bedb735544d92107e743df5eaacbd87", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling nom v1.2.4
[INFO] [stderr]    Compiling bytemuck v1.7.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rgb v0.8.27
[INFO] [stderr]    Compiling drawille v0.3.0
[INFO] [stderr]    Compiling meval v0.2.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling structopt v0.3.23
[INFO] [stderr]    Compiling textplots v0.8.0
[INFO] [stderr]    Compiling collatz v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.18s
[INFO] running `Command { std: "docker" "inspect" "56954512d5386518b98cf89d9851f66b3bedb735544d92107e743df5eaacbd87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56954512d5386518b98cf89d9851f66b3bedb735544d92107e743df5eaacbd87", kill_on_drop: false }`
[INFO] [stdout] 56954512d5386518b98cf89d9851f66b3bedb735544d92107e743df5eaacbd87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] cb01073b44ebf8d99038c3ab4b6250c02510c1d065d1940ed48c062266e13ab9
[INFO] running `Command { std: "docker" "start" "-a" "cb01073b44ebf8d99038c3ab4b6250c02510c1d065d1940ed48c062266e13ab9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/collatz-7a67e952c08436be)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_get_steps ... ok
[INFO] [stderr]    Doc-tests collatz
[INFO] [stdout] test tests::test_count_steps ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "cb01073b44ebf8d99038c3ab4b6250c02510c1d065d1940ed48c062266e13ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb01073b44ebf8d99038c3ab4b6250c02510c1d065d1940ed48c062266e13ab9", kill_on_drop: false }`
[INFO] [stdout] cb01073b44ebf8d99038c3ab4b6250c02510c1d065d1940ed48c062266e13ab9