[INFO] updating cached repository dckc/snakes-ladders
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dckc/snakes-ladders
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dckc/snakes-ladders" "work/ex/beta-1.37-6/sources/1.36.0/gh/dckc/snakes-ladders"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/dckc/snakes-ladders'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dckc/snakes-ladders" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dckc/snakes-ladders"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dckc/snakes-ladders'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fea15b696ffd3eabcea308a679d6f857a29588f7
[INFO] sha for GitHub repo dckc/snakes-ladders: fea15b696ffd3eabcea308a679d6f857a29588f7
[INFO] validating manifest of dckc/snakes-ladders on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dckc/snakes-ladders on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dckc/snakes-ladders
[INFO] finished frobbing dckc/snakes-ladders
[INFO] frobbed toml for dckc/snakes-ladders written to work/ex/beta-1.37-6/sources/1.36.0/gh/dckc/snakes-ladders/Cargo.toml
[INFO] started frobbing dckc/snakes-ladders
[INFO] finished frobbing dckc/snakes-ladders
[INFO] frobbed toml for dckc/snakes-ladders written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dckc/snakes-ladders/Cargo.toml
[INFO] crate dckc/snakes-ladders already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing dckc/snakes-ladders against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dckc/snakes-ladders:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] a87c6e046ae5081452b0836df0ef5107438ed21e0798347b5bfdda196ffa42e5
[INFO] running `"docker" "start" "-a" "a87c6e046ae5081452b0836df0ef5107438ed21e0798347b5bfdda196ffa42e5"`
[INFO] [stderr]    Compiling assign4 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `"docker" "inspect" "a87c6e046ae5081452b0836df0ef5107438ed21e0798347b5bfdda196ffa42e5"`
[INFO] running `"docker" "rm" "-f" "a87c6e046ae5081452b0836df0ef5107438ed21e0798347b5bfdda196ffa42e5"`
[INFO] [stdout] a87c6e046ae5081452b0836df0ef5107438ed21e0798347b5bfdda196ffa42e5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dckc/snakes-ladders:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9c523d5987064b128d278b8de60da2e6dc70fa123a9d845181882ae469a7402e
[INFO] running `"docker" "start" "-a" "9c523d5987064b128d278b8de60da2e6dc70fa123a9d845181882ae469a7402e"`
[INFO] [stderr]    Compiling assign4 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `"docker" "inspect" "9c523d5987064b128d278b8de60da2e6dc70fa123a9d845181882ae469a7402e"`
[INFO] running `"docker" "rm" "-f" "9c523d5987064b128d278b8de60da2e6dc70fa123a9d845181882ae469a7402e"`
[INFO] [stdout] 9c523d5987064b128d278b8de60da2e6dc70fa123a9d845181882ae469a7402e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dckc/snakes-ladders:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 4b40d402aab660f856680d4e7d0aeeac83730ddcd6e5db5a9fc6f294664dfaad
[INFO] running `"docker" "start" "-a" "4b40d402aab660f856680d4e7d0aeeac83730ddcd6e5db5a9fc6f294664dfaad"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/assign4-fbb888412c3d4bd3
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test::make_sample_output ... ok
[INFO] [stdout] test test::parse_sample_input ... ok
[INFO] [stdout] test test::command_parse1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4b40d402aab660f856680d4e7d0aeeac83730ddcd6e5db5a9fc6f294664dfaad"`
[INFO] running `"docker" "rm" "-f" "4b40d402aab660f856680d4e7d0aeeac83730ddcd6e5db5a9fc6f294664dfaad"`
[INFO] [stdout] 4b40d402aab660f856680d4e7d0aeeac83730ddcd6e5db5a9fc6f294664dfaad