[INFO] cloning repository jcdyer/sudoku
[INFO] running `"git" "clone" "--bare" "git://github.com/jcdyer/sudoku.git" "work/cache/sources/gh/jcdyer/sudoku"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/jcdyer/sudoku'...
[INFO] running `"git" "clone" "work/cache/sources/gh/jcdyer/sudoku" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jcdyer/sudoku"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jcdyer/sudoku'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jcdyer/sudoku" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jcdyer/sudoku"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jcdyer/sudoku'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] be30f1cb5543c8bebb74738c07e27e66872862dd
[INFO] sha for GitHub repo jcdyer/sudoku: be30f1cb5543c8bebb74738c07e27e66872862dd
[INFO] validating manifest of jcdyer/sudoku on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jcdyer/sudoku on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jcdyer/sudoku
[INFO] finished frobbing jcdyer/sudoku
[INFO] frobbed toml for jcdyer/sudoku written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jcdyer/sudoku/Cargo.toml
[INFO] started frobbing jcdyer/sudoku
[INFO] finished frobbing jcdyer/sudoku
[INFO] frobbed toml for jcdyer/sudoku written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jcdyer/sudoku/Cargo.toml
[INFO] crate jcdyer/sudoku already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jcdyer/sudoku against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-7/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jcdyer/sudoku:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5f418e2adf62afd3ee1dbb12f6d160dad9eca3f901850021f01c9a7006fc46d7
[INFO] running `"docker" "start" "-a" "5f418e2adf62afd3ee1dbb12f6d160dad9eca3f901850021f01c9a7006fc46d7"`
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "5f418e2adf62afd3ee1dbb12f6d160dad9eca3f901850021f01c9a7006fc46d7"`
[INFO] running `"docker" "rm" "-f" "5f418e2adf62afd3ee1dbb12f6d160dad9eca3f901850021f01c9a7006fc46d7"`
[INFO] [stdout] 5f418e2adf62afd3ee1dbb12f6d160dad9eca3f901850021f01c9a7006fc46d7