[INFO] cloning repository https://github.com/owengage/sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/owengage/sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowengage%2Fsudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowengage%2Fsudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49ee8ef7ae99a9eddb4083dfc85d6cecf11f5262
[INFO] checking owengage/sudoku against master#17ffbc81a30c094193836a5d7f90dff273b5df93 for pr-138785
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowengage%2Fsudoku" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/owengage/sudoku on toolchain 17ffbc81a30c094193836a5d7f90dff273b5df93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+17ffbc81a30c094193836a5d7f90dff273b5df93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/owengage/sudoku
[INFO] finished tweaking git repo https://github.com/owengage/sudoku
[INFO] tweaked toml for git repo https://github.com/owengage/sudoku written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/owengage/sudoku 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" "+17ffbc81a30c094193836a5d7f90dff273b5df93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+17ffbc81a30c094193836a5d7f90dff273b5df93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b4aa37c348f8f28c9d43d900384d8a3f8c36c84cb952dbcd0740f2efc5a4442
[INFO] running `Command { std: "docker" "start" "-a" "8b4aa37c348f8f28c9d43d900384d8a3f8c36c84cb952dbcd0740f2efc5a4442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b4aa37c348f8f28c9d43d900384d8a3f8c36c84cb952dbcd0740f2efc5a4442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b4aa37c348f8f28c9d43d900384d8a3f8c36c84cb952dbcd0740f2efc5a4442", kill_on_drop: false }`
[INFO] [stdout] 8b4aa37c348f8f28c9d43d900384d8a3f8c36c84cb952dbcd0740f2efc5a4442
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+17ffbc81a30c094193836a5d7f90dff273b5df93" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 474ae6df624eeeecd7a57ff439bcadcbcaed6e6e73f9ae3168e0972846868320
[INFO] running `Command { std: "docker" "start" "-a" "474ae6df624eeeecd7a57ff439bcadcbcaed6e6e73f9ae3168e0972846868320", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.61
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `set_row` is never used
[INFO] [stdout]    --> src/sudoku/lib.rs:136:19
[INFO] [stdout]     |
[INFO] [stdout] 91  | impl Sudoku {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 136 |     pub(crate) fn set_row(&mut self, row: usize, cells: [Cell; 9]) {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eliminated` is never used
[INFO] [stdout]   --> src/sudoku/basic.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn eliminated(ns: &[usize]) -> Cell {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "474ae6df624eeeecd7a57ff439bcadcbcaed6e6e73f9ae3168e0972846868320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "474ae6df624eeeecd7a57ff439bcadcbcaed6e6e73f9ae3168e0972846868320", kill_on_drop: false }`
[INFO] [stdout] 474ae6df624eeeecd7a57ff439bcadcbcaed6e6e73f9ae3168e0972846868320