[INFO] updating cached repository cookiecavekeeper/sudoku-solver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cookiecavekeeper/sudoku-solver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cookiecavekeeper/sudoku-solver" "work/ex/beta-1.38-1/sources/1.37.0/gh/cookiecavekeeper/sudoku-solver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cookiecavekeeper/sudoku-solver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cookiecavekeeper/sudoku-solver" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cookiecavekeeper/sudoku-solver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cookiecavekeeper/sudoku-solver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e4267d2015b8e5c8686c991ad7c1993e4d72f518
[INFO] sha for GitHub repo cookiecavekeeper/sudoku-solver: e4267d2015b8e5c8686c991ad7c1993e4d72f518
[INFO] validating manifest of cookiecavekeeper/sudoku-solver on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cookiecavekeeper/sudoku-solver on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cookiecavekeeper/sudoku-solver
[INFO] finished frobbing cookiecavekeeper/sudoku-solver
[INFO] frobbed toml for cookiecavekeeper/sudoku-solver written to work/ex/beta-1.38-1/sources/1.37.0/gh/cookiecavekeeper/sudoku-solver/Cargo.toml
[INFO] started frobbing cookiecavekeeper/sudoku-solver
[INFO] finished frobbing cookiecavekeeper/sudoku-solver
[INFO] frobbed toml for cookiecavekeeper/sudoku-solver written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cookiecavekeeper/sudoku-solver/Cargo.toml
[INFO] crate cookiecavekeeper/sudoku-solver already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing cookiecavekeeper/sudoku-solver against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cookiecavekeeper/sudoku-solver:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 181c4faab128e61192cc978db86afb634ced0285ca93540417c43b7e1e18fdb3
[INFO] running `"docker" "start" "-a" "181c4faab128e61192cc978db86afb634ced0285ca93540417c43b7e1e18fdb3"`
[INFO] [stderr]    Compiling sudoku-solver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "181c4faab128e61192cc978db86afb634ced0285ca93540417c43b7e1e18fdb3"`
[INFO] running `"docker" "rm" "-f" "181c4faab128e61192cc978db86afb634ced0285ca93540417c43b7e1e18fdb3"`
[INFO] [stdout] 181c4faab128e61192cc978db86afb634ced0285ca93540417c43b7e1e18fdb3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cookiecavekeeper/sudoku-solver:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0552e0ce412219024a115e98002e47d118f92b0fef2b0771ad462b076c68678d
[INFO] running `"docker" "start" "-a" "0552e0ce412219024a115e98002e47d118f92b0fef2b0771ad462b076c68678d"`
[INFO] [stderr]    Compiling sudoku-solver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "0552e0ce412219024a115e98002e47d118f92b0fef2b0771ad462b076c68678d"`
[INFO] running `"docker" "rm" "-f" "0552e0ce412219024a115e98002e47d118f92b0fef2b0771ad462b076c68678d"`
[INFO] [stdout] 0552e0ce412219024a115e98002e47d118f92b0fef2b0771ad462b076c68678d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cookiecavekeeper/sudoku-solver:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 84acca9fdbd53c48c9b52fc7b7e122cf7cd2bc2df16d16dc8bb67b0040a781e0
[INFO] running `"docker" "start" "-a" "84acca9fdbd53c48c9b52fc7b7e122cf7cd2bc2df16d16dc8bb67b0040a781e0"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sudoku_solver-e8102d7ec1932da2
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "84acca9fdbd53c48c9b52fc7b7e122cf7cd2bc2df16d16dc8bb67b0040a781e0"`
[INFO] running `"docker" "rm" "-f" "84acca9fdbd53c48c9b52fc7b7e122cf7cd2bc2df16d16dc8bb67b0040a781e0"`
[INFO] [stdout] 84acca9fdbd53c48c9b52fc7b7e122cf7cd2bc2df16d16dc8bb67b0040a781e0