[INFO] cloning repository https://github.com/kallehed/knights_tour_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kallehed/knights_tour_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkallehed%2Fknights_tour_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkallehed%2Fknights_tour_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75e2241494393f7c6c44b31a02e71b4c185ba366
[INFO] checking kallehed/knights_tour_rust against master#84ec2633defc5c459c682ac0c45efb41715249df for pr-114586
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkallehed%2Fknights_tour_rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kallehed/knights_tour_rust on toolchain 84ec2633defc5c459c682ac0c45efb41715249df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+84ec2633defc5c459c682ac0c45efb41715249df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/kallehed/knights_tour_rust
[INFO] finished tweaking git repo https://github.com/kallehed/knights_tour_rust
[INFO] tweaked toml for git repo https://github.com/kallehed/knights_tour_rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kallehed/knights_tour_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" "+84ec2633defc5c459c682ac0c45efb41715249df" "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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+84ec2633defc5c459c682ac0c45efb41715249df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 038247b7cfbca1e11646516cdd731cbe651d3277681707af689b59633e0bea24
[INFO] running `Command { std: "docker" "start" "-a" "038247b7cfbca1e11646516cdd731cbe651d3277681707af689b59633e0bea24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "038247b7cfbca1e11646516cdd731cbe651d3277681707af689b59633e0bea24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "038247b7cfbca1e11646516cdd731cbe651d3277681707af689b59633e0bea24", kill_on_drop: false }`
[INFO] [stdout] 038247b7cfbca1e11646516cdd731cbe651d3277681707af689b59633e0bea24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+84ec2633defc5c459c682ac0c45efb41715249df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0beb70f287683d286d72570671c20667cecec26f662c30a2c7ee581dfa73e279
[INFO] running `Command { std: "docker" "start" "-a" "0beb70f287683d286d72570671c20667cecec26f662c30a2c7ee581dfa73e279", kill_on_drop: false }`
[INFO] [stderr]     Checking knights_tour_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "0beb70f287683d286d72570671c20667cecec26f662c30a2c7ee581dfa73e279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0beb70f287683d286d72570671c20667cecec26f662c30a2c7ee581dfa73e279", kill_on_drop: false }`
[INFO] [stdout] 0beb70f287683d286d72570671c20667cecec26f662c30a2c7ee581dfa73e279