[INFO] cloning repository https://github.com/mattmoor/sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattmoor/sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattmoor%2Fsudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattmoor%2Fsudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f11cb91258a930cdff6c253827e4e32727ce839
[INFO] checking mattmoor/sudoku against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattmoor%2Fsudoku" "/workspace/builds/worker-116/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-116/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattmoor/sudoku on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattmoor/sudoku
[INFO] finished tweaking git repo https://github.com/mattmoor/sudoku
[INFO] tweaked toml for git repo https://github.com/mattmoor/sudoku written to /workspace/builds/worker-116/source/Cargo.toml
[INFO] crate git repo https://github.com/mattmoor/sudoku already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fd60062cdc3aad4e4dee80df419dff8f647bad8ce0c5418e5c34ae9a3fd4e6a
[INFO] running `Command { std: "docker" "start" "-a" "1fd60062cdc3aad4e4dee80df419dff8f647bad8ce0c5418e5c34ae9a3fd4e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fd60062cdc3aad4e4dee80df419dff8f647bad8ce0c5418e5c34ae9a3fd4e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fd60062cdc3aad4e4dee80df419dff8f647bad8ce0c5418e5c34ae9a3fd4e6a", kill_on_drop: false }`
[INFO] [stdout] 1fd60062cdc3aad4e4dee80df419dff8f647bad8ce0c5418e5c34ae9a3fd4e6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76d055b01f2138a40d3c2d591ee73a491fd6f39833ffd5ecba226a79dd864616
[INFO] running `Command { std: "docker" "start" "-a" "76d055b01f2138a40d3c2d591ee73a491fd6f39833ffd5ecba226a79dd864616", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `union`
[INFO] [stdout]   --> src/game/bitset.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn union(&self, other: BitSet) -> BitSet {
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "76d055b01f2138a40d3c2d591ee73a491fd6f39833ffd5ecba226a79dd864616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76d055b01f2138a40d3c2d591ee73a491fd6f39833ffd5ecba226a79dd864616", kill_on_drop: false }`
[INFO] [stdout] 76d055b01f2138a40d3c2d591ee73a491fd6f39833ffd5ecba226a79dd864616