[INFO] cloning repository https://github.com/voidash/Futoshiki-CNF
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/voidash/Futoshiki-CNF" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoidash%2FFutoshiki-CNF", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoidash%2FFutoshiki-CNF'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb20fab4ac46db6a946f16b03e8d65e82f70da67
[INFO] checking voidash/Futoshiki-CNF against master#9a42c6509d399fd205917ebce474b31315c5d3e9 for pr-97427
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoidash%2FFutoshiki-CNF" "/workspace/builds/worker-38/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-38/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/voidash/Futoshiki-CNF on toolchain 9a42c6509d399fd205917ebce474b31315c5d3e9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/voidash/Futoshiki-CNF
[INFO] finished tweaking git repo https://github.com/voidash/Futoshiki-CNF
[INFO] tweaked toml for git repo https://github.com/voidash/Futoshiki-CNF written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate git repo https://github.com/voidash/Futoshiki-CNF already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "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-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 555ff863b130745b6534da4b316a23aefae7af4668aa62b78781d9333403df70
[INFO] running `Command { std: "docker" "start" "-a" "555ff863b130745b6534da4b316a23aefae7af4668aa62b78781d9333403df70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "555ff863b130745b6534da4b316a23aefae7af4668aa62b78781d9333403df70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "555ff863b130745b6534da4b316a23aefae7af4668aa62b78781d9333403df70", kill_on_drop: false }`
[INFO] [stdout] 555ff863b130745b6534da4b316a23aefae7af4668aa62b78781d9333403df70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc7030db7273531aff2b914a5fb1e722c80c41df630807dbfa94e686833c5744
[INFO] running `Command { std: "docker" "start" "-a" "bc7030db7273531aff2b914a5fb1e722c80c41df630807dbfa94e686833c5744", kill_on_drop: false }`
[INFO] [stderr]     Checking futoshiki v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `add_comment`
[INFO] [stdout]   --> src/main.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn add_comment(&mut self, ins: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] [stdout] warning: associated function is never used: `add_comment`
[INFO] [stdout]   --> src/main.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn add_comment(&mut self, ins: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bc7030db7273531aff2b914a5fb1e722c80c41df630807dbfa94e686833c5744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc7030db7273531aff2b914a5fb1e722c80c41df630807dbfa94e686833c5744", kill_on_drop: false }`
[INFO] [stdout] bc7030db7273531aff2b914a5fb1e722c80c41df630807dbfa94e686833c5744