[INFO] cloning repository H2CO3/sudoku
[INFO] running `"git" "clone" "--bare" "git://github.com/H2CO3/sudoku.git" "work/cache/sources/gh/H2CO3/sudoku"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/H2CO3/sudoku'...
[INFO] running `"git" "clone" "work/cache/sources/gh/H2CO3/sudoku" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/H2CO3/sudoku"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/H2CO3/sudoku'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/H2CO3/sudoku" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/H2CO3/sudoku"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/H2CO3/sudoku'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8e62adee840042e0fa2e6b961626bce4a08b0889
[INFO] sha for GitHub repo H2CO3/sudoku: 8e62adee840042e0fa2e6b961626bce4a08b0889
[INFO] validating manifest of H2CO3/sudoku on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of H2CO3/sudoku on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing H2CO3/sudoku
[INFO] finished frobbing H2CO3/sudoku
[INFO] frobbed toml for H2CO3/sudoku written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/H2CO3/sudoku/Cargo.toml
[INFO] started frobbing H2CO3/sudoku
[INFO] finished frobbing H2CO3/sudoku
[INFO] frobbed toml for H2CO3/sudoku written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/H2CO3/sudoku/Cargo.toml
[INFO] crate H2CO3/sudoku has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking H2CO3/sudoku against try#290ac7b29f41ff9fa5232f9a1116ea71a3501063 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-3/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/H2CO3/sudoku:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fc2e185a684c2dd50214446b1d67c2d803e6ab7bf519358c8b482c50aef1582f
[INFO] running `"docker" "start" "-a" "fc2e185a684c2dd50214446b1d67c2d803e6ab7bf519358c8b482c50aef1582f"`
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `s2`
[INFO] [stderr]    --> src/main.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |     let s2 = Grid {
[INFO] [stderr]     |         ^^ help: consider prefixing with an underscore: `_s2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s2`
[INFO] [stderr]    --> src/main.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |     let s2 = Grid {
[INFO] [stderr]     |         ^^ help: consider prefixing with an underscore: `_s2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "fc2e185a684c2dd50214446b1d67c2d803e6ab7bf519358c8b482c50aef1582f"`
[INFO] running `"docker" "rm" "-f" "fc2e185a684c2dd50214446b1d67c2d803e6ab7bf519358c8b482c50aef1582f"`
[INFO] [stdout] fc2e185a684c2dd50214446b1d67c2d803e6ab7bf519358c8b482c50aef1582f