[INFO] updating cached repository timm1k/rust_string_slices_training
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/timm1k/rust_string_slices_training
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/timm1k/rust_string_slices_training" "work/ex/beta-1.38-1/sources/1.37.0/gh/timm1k/rust_string_slices_training"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/timm1k/rust_string_slices_training'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/timm1k/rust_string_slices_training" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/timm1k/rust_string_slices_training"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/timm1k/rust_string_slices_training'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a6abfd47938bb1e99e53cd5a4087cd54f566130a
[INFO] sha for GitHub repo timm1k/rust_string_slices_training: a6abfd47938bb1e99e53cd5a4087cd54f566130a
[INFO] validating manifest of timm1k/rust_string_slices_training 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 timm1k/rust_string_slices_training 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 timm1k/rust_string_slices_training
[INFO] finished frobbing timm1k/rust_string_slices_training
[INFO] frobbed toml for timm1k/rust_string_slices_training written to work/ex/beta-1.38-1/sources/1.37.0/gh/timm1k/rust_string_slices_training/Cargo.toml
[INFO] started frobbing timm1k/rust_string_slices_training
[INFO] finished frobbing timm1k/rust_string_slices_training
[INFO] frobbed toml for timm1k/rust_string_slices_training written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/timm1k/rust_string_slices_training/Cargo.toml
[INFO] crate timm1k/rust_string_slices_training 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 timm1k/rust_string_slices_training against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/timm1k/rust_string_slices_training:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 298eb2d558826b37002262dfe6cb4ea31da408be6b7af869d472ac03c4ffe3ee
[INFO] running `"docker" "start" "-a" "298eb2d558826b37002262dfe6cb4ea31da408be6b7af869d472ac03c4ffe3ee"`
[INFO] [stderr]    Compiling first_word v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `"docker" "inspect" "298eb2d558826b37002262dfe6cb4ea31da408be6b7af869d472ac03c4ffe3ee"`
[INFO] running `"docker" "rm" "-f" "298eb2d558826b37002262dfe6cb4ea31da408be6b7af869d472ac03c4ffe3ee"`
[INFO] [stdout] 298eb2d558826b37002262dfe6cb4ea31da408be6b7af869d472ac03c4ffe3ee
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/timm1k/rust_string_slices_training:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 58700c89a1069468e784192198c105ea351b16f779a43002c680848c93fc095d
[INFO] running `"docker" "start" "-a" "58700c89a1069468e784192198c105ea351b16f779a43002c680848c93fc095d"`
[INFO] [stderr]    Compiling first_word v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "58700c89a1069468e784192198c105ea351b16f779a43002c680848c93fc095d"`
[INFO] running `"docker" "rm" "-f" "58700c89a1069468e784192198c105ea351b16f779a43002c680848c93fc095d"`
[INFO] [stdout] 58700c89a1069468e784192198c105ea351b16f779a43002c680848c93fc095d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/timm1k/rust_string_slices_training:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] f8c54e3086dd4204a36568c784dbb944f0a80d9c543ed45c29bc65dcbc235417
[INFO] running `"docker" "start" "-a" "f8c54e3086dd4204a36568c784dbb944f0a80d9c543ed45c29bc65dcbc235417"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/first_word-b5fe3700dce74841
[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" "f8c54e3086dd4204a36568c784dbb944f0a80d9c543ed45c29bc65dcbc235417"`
[INFO] running `"docker" "rm" "-f" "f8c54e3086dd4204a36568c784dbb944f0a80d9c543ed45c29bc65dcbc235417"`
[INFO] [stdout] f8c54e3086dd4204a36568c784dbb944f0a80d9c543ed45c29bc65dcbc235417