[INFO] updating cached repository proudzhu/sudoku-brute-force
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/proudzhu/sudoku-brute-force
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/proudzhu/sudoku-brute-force" "work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/proudzhu/sudoku-brute-force"`
[INFO] [stderr] Cloning into 'work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/proudzhu/sudoku-brute-force'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/proudzhu/sudoku-brute-force" "work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/proudzhu/sudoku-brute-force"`
[INFO] [stderr] Cloning into 'work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/proudzhu/sudoku-brute-force'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a03ed5c59d6d49a04ad5f8dce6908a3473c97bb7
[INFO] sha for GitHub repo proudzhu/sudoku-brute-force: a03ed5c59d6d49a04ad5f8dce6908a3473c97bb7
[INFO] validating manifest of proudzhu/sudoku-brute-force on toolchain master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of proudzhu/sudoku-brute-force on toolchain try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing proudzhu/sudoku-brute-force
[INFO] finished frobbing proudzhu/sudoku-brute-force
[INFO] frobbed toml for proudzhu/sudoku-brute-force written to work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/proudzhu/sudoku-brute-force/Cargo.toml
[INFO] started frobbing proudzhu/sudoku-brute-force
[INFO] finished frobbing proudzhu/sudoku-brute-force
[INFO] frobbed toml for proudzhu/sudoku-brute-force written to work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/gh/proudzhu/sudoku-brute-force/Cargo.toml
[INFO] crate proudzhu/sudoku-brute-force has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking proudzhu/sudoku-brute-force against master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104 for pr-57321
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57321/worker-0/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/gh/proudzhu/sudoku-brute-force:/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" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b0de4316b0f765c4022e570dd843c718198af8d44349dac859397249b2b8d6d5
[INFO] running `"docker" "start" "-a" "b0de4316b0f765c4022e570dd843c718198af8d44349dac859397249b2b8d6d5"`
[INFO] [stderr]     Checking brute_force v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `"docker" "inspect" "b0de4316b0f765c4022e570dd843c718198af8d44349dac859397249b2b8d6d5"`
[INFO] running `"docker" "rm" "-f" "b0de4316b0f765c4022e570dd843c718198af8d44349dac859397249b2b8d6d5"`
[INFO] [stdout] b0de4316b0f765c4022e570dd843c718198af8d44349dac859397249b2b8d6d5