[INFO] cloning repository https://github.com/damiensedgwick/fizzbuzz-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/damiensedgwick/fizzbuzz-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdamiensedgwick%2Ffizzbuzz-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdamiensedgwick%2Ffizzbuzz-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c7bd6a78e03a62122db81e489b3546985356e047
[INFO] checking damiensedgwick/fizzbuzz-rust against master#f8f6997469237299c1d60814c7b9828602a1f8e4 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdamiensedgwick%2Ffizzbuzz-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/damiensedgwick/fizzbuzz-rust
[INFO] finished tweaking git repo https://github.com/damiensedgwick/fizzbuzz-rust
[INFO] tweaked toml for git repo https://github.com/damiensedgwick/fizzbuzz-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/damiensedgwick/fizzbuzz-rust on toolchain f8f6997469237299c1d60814c7b9828602a1f8e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/damiensedgwick/fizzbuzz-rust 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" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ffcd00cd4e10b40bbd74adcb1398c9e051401281c35191910359317be6c35c5
[INFO] running `Command { std: "docker" "start" "-a" "1ffcd00cd4e10b40bbd74adcb1398c9e051401281c35191910359317be6c35c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ffcd00cd4e10b40bbd74adcb1398c9e051401281c35191910359317be6c35c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ffcd00cd4e10b40bbd74adcb1398c9e051401281c35191910359317be6c35c5", kill_on_drop: false }`
[INFO] [stdout] 1ffcd00cd4e10b40bbd74adcb1398c9e051401281c35191910359317be6c35c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d5654fe52bc2f0e717cfdd024e0583144c6c3bec47dd5ea35344a45d796aa7e
[INFO] running `Command { std: "docker" "start" "-a" "7d5654fe52bc2f0e717cfdd024e0583144c6c3bec47dd5ea35344a45d796aa7e", kill_on_drop: false }`
[INFO] [stderr]     Checking fizzbuzz-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "7d5654fe52bc2f0e717cfdd024e0583144c6c3bec47dd5ea35344a45d796aa7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d5654fe52bc2f0e717cfdd024e0583144c6c3bec47dd5ea35344a45d796aa7e", kill_on_drop: false }`
[INFO] [stdout] 7d5654fe52bc2f0e717cfdd024e0583144c6c3bec47dd5ea35344a45d796aa7e