[INFO] updating cached repository coopersimon/RustSudokuSolver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/coopersimon/RustSudokuSolver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/coopersimon/RustSudokuSolver" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/coopersimon/RustSudokuSolver"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/coopersimon/RustSudokuSolver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/coopersimon/RustSudokuSolver" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/coopersimon/RustSudokuSolver"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/coopersimon/RustSudokuSolver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 625478f44e697554545f1298cc703089843a1cb1
[INFO] sha for GitHub repo coopersimon/RustSudokuSolver: 625478f44e697554545f1298cc703089843a1cb1
[INFO] validating manifest of coopersimon/RustSudokuSolver on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of coopersimon/RustSudokuSolver on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing coopersimon/RustSudokuSolver
[INFO] finished frobbing coopersimon/RustSudokuSolver
[INFO] frobbed toml for coopersimon/RustSudokuSolver written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/coopersimon/RustSudokuSolver/Cargo.toml
[INFO] started frobbing coopersimon/RustSudokuSolver
[INFO] finished frobbing coopersimon/RustSudokuSolver
[INFO] frobbed toml for coopersimon/RustSudokuSolver written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/coopersimon/RustSudokuSolver/Cargo.toml
[INFO] crate coopersimon/RustSudokuSolver already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking coopersimon/RustSudokuSolver against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-4/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/coopersimon/RustSudokuSolver:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 57fc1500cd244c7b9bfbd68ad16bbf6e827ee263185504b7ece3034b2414c6fd
[INFO] running `"docker" "start" "-a" "57fc1500cd244c7b9bfbd68ad16bbf6e827ee263185504b7ece3034b2414c6fd"`
[INFO] [stderr]     Checking sudoku_solver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "57fc1500cd244c7b9bfbd68ad16bbf6e827ee263185504b7ece3034b2414c6fd"`
[INFO] running `"docker" "rm" "-f" "57fc1500cd244c7b9bfbd68ad16bbf6e827ee263185504b7ece3034b2414c6fd"`
[INFO] [stdout] 57fc1500cd244c7b9bfbd68ad16bbf6e827ee263185504b7ece3034b2414c6fd