[INFO] updating cached repository VaclavStebra/rust-book-slices
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/VaclavStebra/rust-book-slices
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/VaclavStebra/rust-book-slices" "work/ex/beta-1.38-1/sources/1.37.0/gh/VaclavStebra/rust-book-slices"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/VaclavStebra/rust-book-slices'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/VaclavStebra/rust-book-slices" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/VaclavStebra/rust-book-slices"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/VaclavStebra/rust-book-slices'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bdf432f1c8082f6b7b0697b704a641f579905b1d
[INFO] sha for GitHub repo VaclavStebra/rust-book-slices: bdf432f1c8082f6b7b0697b704a641f579905b1d
[INFO] validating manifest of VaclavStebra/rust-book-slices 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 VaclavStebra/rust-book-slices 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 VaclavStebra/rust-book-slices
[INFO] finished frobbing VaclavStebra/rust-book-slices
[INFO] frobbed toml for VaclavStebra/rust-book-slices written to work/ex/beta-1.38-1/sources/1.37.0/gh/VaclavStebra/rust-book-slices/Cargo.toml
[INFO] started frobbing VaclavStebra/rust-book-slices
[INFO] finished frobbing VaclavStebra/rust-book-slices
[INFO] frobbed toml for VaclavStebra/rust-book-slices written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/VaclavStebra/rust-book-slices/Cargo.toml
[INFO] crate VaclavStebra/rust-book-slices 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 VaclavStebra/rust-book-slices 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/VaclavStebra/rust-book-slices:/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] 681f6cb6c0e54cd460aadc98a3f4a29936d33e5bf0a804ca14e11dc7682e4e7a
[INFO] running `"docker" "start" "-a" "681f6cb6c0e54cd460aadc98a3f4a29936d33e5bf0a804ca14e11dc7682e4e7a"`
[INFO] [stderr]    Compiling rust-book-slices v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "681f6cb6c0e54cd460aadc98a3f4a29936d33e5bf0a804ca14e11dc7682e4e7a"`
[INFO] running `"docker" "rm" "-f" "681f6cb6c0e54cd460aadc98a3f4a29936d33e5bf0a804ca14e11dc7682e4e7a"`
[INFO] [stdout] 681f6cb6c0e54cd460aadc98a3f4a29936d33e5bf0a804ca14e11dc7682e4e7a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/VaclavStebra/rust-book-slices:/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] b6fba15c23131b96d44bbf8de19f65cec325e909d8ec04f684dd3389bae9d53a
[INFO] running `"docker" "start" "-a" "b6fba15c23131b96d44bbf8de19f65cec325e909d8ec04f684dd3389bae9d53a"`
[INFO] [stderr]    Compiling rust-book-slices v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "b6fba15c23131b96d44bbf8de19f65cec325e909d8ec04f684dd3389bae9d53a"`
[INFO] running `"docker" "rm" "-f" "b6fba15c23131b96d44bbf8de19f65cec325e909d8ec04f684dd3389bae9d53a"`
[INFO] [stdout] b6fba15c23131b96d44bbf8de19f65cec325e909d8ec04f684dd3389bae9d53a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/VaclavStebra/rust-book-slices:/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] ff539ed95bd48666cdeb08000320e773e29e24cda4c21525f071f3fd2be65355
[INFO] running `"docker" "start" "-a" "ff539ed95bd48666cdeb08000320e773e29e24cda4c21525f071f3fd2be65355"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_book_slices-3e78d0f95e801c66
[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" "ff539ed95bd48666cdeb08000320e773e29e24cda4c21525f071f3fd2be65355"`
[INFO] running `"docker" "rm" "-f" "ff539ed95bd48666cdeb08000320e773e29e24cda4c21525f071f3fd2be65355"`
[INFO] [stdout] ff539ed95bd48666cdeb08000320e773e29e24cda4c21525f071f3fd2be65355