[INFO] updating cached repository aidanplunkitt/rust-book-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aidanplunkitt/rust-book-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aidanplunkitt/rust-book-example" "work/ex/beta-1.38-1/sources/1.37.0/gh/aidanplunkitt/rust-book-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/aidanplunkitt/rust-book-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aidanplunkitt/rust-book-example" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aidanplunkitt/rust-book-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aidanplunkitt/rust-book-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1555f962ac93218a08fbc6cd27d8f89c05ef5ab8
[INFO] sha for GitHub repo aidanplunkitt/rust-book-example: 1555f962ac93218a08fbc6cd27d8f89c05ef5ab8
[INFO] validating manifest of aidanplunkitt/rust-book-example 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 aidanplunkitt/rust-book-example 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 aidanplunkitt/rust-book-example
[INFO] finished frobbing aidanplunkitt/rust-book-example
[INFO] frobbed toml for aidanplunkitt/rust-book-example written to work/ex/beta-1.38-1/sources/1.37.0/gh/aidanplunkitt/rust-book-example/Cargo.toml
[INFO] started frobbing aidanplunkitt/rust-book-example
[INFO] finished frobbing aidanplunkitt/rust-book-example
[INFO] frobbed toml for aidanplunkitt/rust-book-example written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aidanplunkitt/rust-book-example/Cargo.toml
[INFO] crate aidanplunkitt/rust-book-example 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 aidanplunkitt/rust-book-example 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/aidanplunkitt/rust-book-example:/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] e65e18a3be5dfc61be9df7fe4211af7f199f7c5adc977fb1958b48b002abfd41
[INFO] running `"docker" "start" "-a" "e65e18a3be5dfc61be9df7fe4211af7f199f7c5adc977fb1958b48b002abfd41"`
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.24s
[INFO] running `"docker" "inspect" "e65e18a3be5dfc61be9df7fe4211af7f199f7c5adc977fb1958b48b002abfd41"`
[INFO] running `"docker" "rm" "-f" "e65e18a3be5dfc61be9df7fe4211af7f199f7c5adc977fb1958b48b002abfd41"`
[INFO] [stdout] e65e18a3be5dfc61be9df7fe4211af7f199f7c5adc977fb1958b48b002abfd41
[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/aidanplunkitt/rust-book-example:/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] 689e3c713d1a7d27d43b298d94f173d153c9e843d4810a06c092ba661ebb3fe6
[INFO] running `"docker" "start" "-a" "689e3c713d1a7d27d43b298d94f173d153c9e843d4810a06c092ba661ebb3fe6"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "689e3c713d1a7d27d43b298d94f173d153c9e843d4810a06c092ba661ebb3fe6"`
[INFO] running `"docker" "rm" "-f" "689e3c713d1a7d27d43b298d94f173d153c9e843d4810a06c092ba661ebb3fe6"`
[INFO] [stdout] 689e3c713d1a7d27d43b298d94f173d153c9e843d4810a06c092ba661ebb3fe6
[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/aidanplunkitt/rust-book-example:/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] ddbdbb6412335c73a35e61125f9a34fce998370764b10402e61ebaddf72c319e
[INFO] running `"docker" "start" "-a" "ddbdbb6412335c73a35e61125f9a34fce998370764b10402e61ebaddf72c319e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-bdf14d90fd455420
[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" "ddbdbb6412335c73a35e61125f9a34fce998370764b10402e61ebaddf72c319e"`
[INFO] running `"docker" "rm" "-f" "ddbdbb6412335c73a35e61125f9a34fce998370764b10402e61ebaddf72c319e"`
[INFO] [stdout] ddbdbb6412335c73a35e61125f9a34fce998370764b10402e61ebaddf72c319e