[INFO] cloning repository https://github.com/rubenwardy/nonograms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rubenwardy/nonograms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frubenwardy%2Fnonograms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frubenwardy%2Fnonograms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ded79853b3c7b305afcf92740fdd20db7c2b4a4
[INFO] checking rubenwardy/nonograms against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frubenwardy%2Fnonograms" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rubenwardy/nonograms on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rubenwardy/nonograms
[INFO] finished tweaking git repo https://github.com/rubenwardy/nonograms
[INFO] tweaked toml for git repo https://github.com/rubenwardy/nonograms written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/rubenwardy/nonograms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bb1851299a06a19967fdc3a3ca4efe30a51fdd7156023f8a0cde4c6bc51e162
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3bb1851299a06a19967fdc3a3ca4efe30a51fdd7156023f8a0cde4c6bc51e162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bb1851299a06a19967fdc3a3ca4efe30a51fdd7156023f8a0cde4c6bc51e162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bb1851299a06a19967fdc3a3ca4efe30a51fdd7156023f8a0cde4c6bc51e162", kill_on_drop: false }`
[INFO] [stdout] 3bb1851299a06a19967fdc3a3ca4efe30a51fdd7156023f8a0cde4c6bc51e162
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f58519c9f67b0be1196a35c076d503320854ac35bf0ac9b40f928c1bc032369
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4f58519c9f67b0be1196a35c076d503320854ac35bf0ac9b40f928c1bc032369", kill_on_drop: false }`
[INFO] [stderr]     Checking nonogram v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `equals`
[INFO] [stdout]   --> src/board.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn equals(&self, other: &Board) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/board.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn set(&mut self, x: usize, y: usize, value: bool) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/board.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn get(&self, x: usize, y: usize) -> bool {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `equals`
[INFO] [stdout]   --> src/board.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn equals(&self, other: &Board) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/board.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn set(&mut self, x: usize, y: usize, value: bool) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/board.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn get(&self, x: usize, y: usize) -> bool {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "4f58519c9f67b0be1196a35c076d503320854ac35bf0ac9b40f928c1bc032369", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f58519c9f67b0be1196a35c076d503320854ac35bf0ac9b40f928c1bc032369", kill_on_drop: false }`
[INFO] [stdout] 4f58519c9f67b0be1196a35c076d503320854ac35bf0ac9b40f928c1bc032369