[INFO] updating cached repository CGQAQ/rust-exercises
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/CGQAQ/rust-exercises
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/CGQAQ/rust-exercises" "work/ex/beta-1.38-1/sources/1.37.0/gh/CGQAQ/rust-exercises"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/CGQAQ/rust-exercises'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/CGQAQ/rust-exercises" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CGQAQ/rust-exercises"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CGQAQ/rust-exercises'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1c745c44d5f1e9c5801e7db0c18fc7278836cd7e
[INFO] sha for GitHub repo CGQAQ/rust-exercises: 1c745c44d5f1e9c5801e7db0c18fc7278836cd7e
[INFO] validating manifest of CGQAQ/rust-exercises 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 CGQAQ/rust-exercises 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 CGQAQ/rust-exercises
[INFO] finished frobbing CGQAQ/rust-exercises
[INFO] frobbed toml for CGQAQ/rust-exercises written to work/ex/beta-1.38-1/sources/1.37.0/gh/CGQAQ/rust-exercises/Cargo.toml
[INFO] started frobbing CGQAQ/rust-exercises
[INFO] finished frobbing CGQAQ/rust-exercises
[INFO] frobbed toml for CGQAQ/rust-exercises written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CGQAQ/rust-exercises/Cargo.toml
[INFO] crate CGQAQ/rust-exercises 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 CGQAQ/rust-exercises 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-4/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/CGQAQ/rust-exercises:/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] 4ab9eaf8a60bf684f1628e1efd431bbdc5646760796d9fcbb1587dac8b49156d
[INFO] running `"docker" "start" "-a" "4ab9eaf8a60bf684f1628e1efd431bbdc5646760796d9fcbb1587dac8b49156d"`
[INFO] [stderr]    Compiling list v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "4ab9eaf8a60bf684f1628e1efd431bbdc5646760796d9fcbb1587dac8b49156d"`
[INFO] running `"docker" "rm" "-f" "4ab9eaf8a60bf684f1628e1efd431bbdc5646760796d9fcbb1587dac8b49156d"`
[INFO] [stdout] 4ab9eaf8a60bf684f1628e1efd431bbdc5646760796d9fcbb1587dac8b49156d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/CGQAQ/rust-exercises:/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] c7bf0393bda45922d2ad0abeb1c0999ef57117ef957fbfb2953746c55ab4016d
[INFO] running `"docker" "start" "-a" "c7bf0393bda45922d2ad0abeb1c0999ef57117ef957fbfb2953746c55ab4016d"`
[INFO] [stderr]    Compiling list v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "c7bf0393bda45922d2ad0abeb1c0999ef57117ef957fbfb2953746c55ab4016d"`
[INFO] running `"docker" "rm" "-f" "c7bf0393bda45922d2ad0abeb1c0999ef57117ef957fbfb2953746c55ab4016d"`
[INFO] [stdout] c7bf0393bda45922d2ad0abeb1c0999ef57117ef957fbfb2953746c55ab4016d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/CGQAQ/rust-exercises:/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] cbbe6b708cb70b25810bf006fd534381cd416814b8b1964cadd43aba160f9d51
[INFO] running `"docker" "start" "-a" "cbbe6b708cb70b25810bf006fd534381cd416814b8b1964cadd43aba160f9d51"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/list-596e6e23dda4ade3
[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" "cbbe6b708cb70b25810bf006fd534381cd416814b8b1964cadd43aba160f9d51"`
[INFO] running `"docker" "rm" "-f" "cbbe6b708cb70b25810bf006fd534381cd416814b8b1964cadd43aba160f9d51"`
[INFO] [stdout] cbbe6b708cb70b25810bf006fd534381cd416814b8b1964cadd43aba160f9d51