[INFO] cloning repository https://github.com/takagisou/a_half_hour_to_learn_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/takagisou/a_half_hour_to_learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakagisou%2Fa_half_hour_to_learn_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakagisou%2Fa_half_hour_to_learn_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab1c55da334154869e4e552c04f3f9e4e82a2135
[INFO] testing takagisou/a_half_hour_to_learn_rust against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakagisou%2Fa_half_hour_to_learn_rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/takagisou/a_half_hour_to_learn_rust on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/takagisou/a_half_hour_to_learn_rust
[INFO] finished tweaking git repo https://github.com/takagisou/a_half_hour_to_learn_rust
[INFO] tweaked toml for git repo https://github.com/takagisou/a_half_hour_to_learn_rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/takagisou/a_half_hour_to_learn_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a83a99f9925d8c2f85c9d1201427e96e1605284e87aa836badf31f0471e5fbc2
[INFO] running `Command { std: "docker" "start" "-a" "a83a99f9925d8c2f85c9d1201427e96e1605284e87aa836badf31f0471e5fbc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a83a99f9925d8c2f85c9d1201427e96e1605284e87aa836badf31f0471e5fbc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a83a99f9925d8c2f85c9d1201427e96e1605284e87aa836badf31f0471e5fbc2", kill_on_drop: false }`
[INFO] [stdout] a83a99f9925d8c2f85c9d1201427e96e1605284e87aa836badf31f0471e5fbc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4b6d9a3b4984f799eb605336456bdee62cc773d710c046c5195b28ff41440a5
[INFO] running `Command { std: "docker" "start" "-a" "e4b6d9a3b4984f799eb605336456bdee62cc773d710c046c5195b28ff41440a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling a_half_hour_to_learn_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "e4b6d9a3b4984f799eb605336456bdee62cc773d710c046c5195b28ff41440a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4b6d9a3b4984f799eb605336456bdee62cc773d710c046c5195b28ff41440a5", kill_on_drop: false }`
[INFO] [stdout] e4b6d9a3b4984f799eb605336456bdee62cc773d710c046c5195b28ff41440a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86210734f14b8a8a28ce635728fcbec6c9d83df7d72644ac35e6ffc26ee1d415
[INFO] running `Command { std: "docker" "start" "-a" "86210734f14b8a8a28ce635728fcbec6c9d83df7d72644ac35e6ffc26ee1d415", kill_on_drop: false }`
[INFO] [stderr]    Compiling a_half_hour_to_learn_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "86210734f14b8a8a28ce635728fcbec6c9d83df7d72644ac35e6ffc26ee1d415", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86210734f14b8a8a28ce635728fcbec6c9d83df7d72644ac35e6ffc26ee1d415", kill_on_drop: false }`
[INFO] [stdout] 86210734f14b8a8a28ce635728fcbec6c9d83df7d72644ac35e6ffc26ee1d415
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 62f0340f3d5fa40fd51d53c66152ac1ee92791158abbdc435a9e18b7173da71e
[INFO] running `Command { std: "docker" "start" "-a" "62f0340f3d5fa40fd51d53c66152ac1ee92791158abbdc435a9e18b7173da71e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/a_half_hour_to_learn_rust-9c5696e026c50f1f)
[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" "62f0340f3d5fa40fd51d53c66152ac1ee92791158abbdc435a9e18b7173da71e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62f0340f3d5fa40fd51d53c66152ac1ee92791158abbdc435a9e18b7173da71e", kill_on_drop: false }`
[INFO] [stdout] 62f0340f3d5fa40fd51d53c66152ac1ee92791158abbdc435a9e18b7173da71e