[INFO] cloning repository https://github.com/191-iota/terminal_arithmetic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/191-iota/terminal_arithmetic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F191-iota%2Fterminal_arithmetic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F191-iota%2Fterminal_arithmetic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0293979410cfad38c2fe7577348d3b981e79f6bb
[INFO] checking 191-iota/terminal_arithmetic against try#54cf65b8d066c082e536455049b95943cf30378f for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F191-iota%2Fterminal_arithmetic" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/191-iota/terminal_arithmetic
[INFO] finished tweaking git repo https://github.com/191-iota/terminal_arithmetic
[INFO] tweaked toml for git repo https://github.com/191-iota/terminal_arithmetic written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/191-iota/terminal_arithmetic on toolchain 54cf65b8d066c082e536455049b95943cf30378f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/191-iota/terminal_arithmetic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f376532af7ed8a44493782a4aa057376851d65c00619655b9334db793849b181
[INFO] running `Command { std: "docker" "start" "-a" "f376532af7ed8a44493782a4aa057376851d65c00619655b9334db793849b181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f376532af7ed8a44493782a4aa057376851d65c00619655b9334db793849b181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f376532af7ed8a44493782a4aa057376851d65c00619655b9334db793849b181", kill_on_drop: false }`
[INFO] [stdout] f376532af7ed8a44493782a4aa057376851d65c00619655b9334db793849b181
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54cf65b8d066c082e536455049b95943cf30378f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6339db831316866fb01cfcb54968e0a4c56f29e147348c7cbe820be2c4438cfa
[INFO] running `Command { std: "docker" "start" "-a" "6339db831316866fb01cfcb54968e0a4c56f29e147348c7cbe820be2c4438cfa", kill_on_drop: false }`
[INFO] [stderr]     Checking shell-words v1.1.1
[INFO] [stderr]     Checking console v0.16.1
[INFO] [stderr]     Checking tempfile v3.23.0
[INFO] [stderr]     Checking dialoguer v0.12.0
[INFO] [stderr]     Checking math_trainer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "6339db831316866fb01cfcb54968e0a4c56f29e147348c7cbe820be2c4438cfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6339db831316866fb01cfcb54968e0a4c56f29e147348c7cbe820be2c4438cfa", kill_on_drop: false }`
[INFO] [stdout] 6339db831316866fb01cfcb54968e0a4c56f29e147348c7cbe820be2c4438cfa
