[INFO] updating cached repository ageiersbach/viola
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ageiersbach/viola
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ageiersbach/viola" "work/ex/beta-1.38-1/sources/1.37.0/gh/ageiersbach/viola"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ageiersbach/viola'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ageiersbach/viola" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ageiersbach/viola"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ageiersbach/viola'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 479e13668b6c8608869122976a45d8e89872e694
[INFO] sha for GitHub repo ageiersbach/viola: 479e13668b6c8608869122976a45d8e89872e694
[INFO] validating manifest of ageiersbach/viola 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 ageiersbach/viola 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 ageiersbach/viola
[INFO] finished frobbing ageiersbach/viola
[INFO] frobbed toml for ageiersbach/viola written to work/ex/beta-1.38-1/sources/1.37.0/gh/ageiersbach/viola/Cargo.toml
[INFO] started frobbing ageiersbach/viola
[INFO] finished frobbing ageiersbach/viola
[INFO] frobbed toml for ageiersbach/viola written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ageiersbach/viola/Cargo.toml
[INFO] crate ageiersbach/viola 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 ageiersbach/viola 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/ageiersbach/viola:/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] dc7d32ebe9d680bdde525bd853bbdd2dcfa6dca3caa5affcd65b65e0e14093d9
[INFO] running `"docker" "start" "-a" "dc7d32ebe9d680bdde525bd853bbdd2dcfa6dca3caa5affcd65b65e0e14093d9"`
[INFO] [stderr]    Compiling viola v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "dc7d32ebe9d680bdde525bd853bbdd2dcfa6dca3caa5affcd65b65e0e14093d9"`
[INFO] running `"docker" "rm" "-f" "dc7d32ebe9d680bdde525bd853bbdd2dcfa6dca3caa5affcd65b65e0e14093d9"`
[INFO] [stdout] dc7d32ebe9d680bdde525bd853bbdd2dcfa6dca3caa5affcd65b65e0e14093d9
[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/ageiersbach/viola:/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] 7d4a5debaf1e1c429961fb170062f165f9ec1eca46bdd0f387e60707b04fe7b6
[INFO] running `"docker" "start" "-a" "7d4a5debaf1e1c429961fb170062f165f9ec1eca46bdd0f387e60707b04fe7b6"`
[INFO] [stderr]    Compiling viola v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "7d4a5debaf1e1c429961fb170062f165f9ec1eca46bdd0f387e60707b04fe7b6"`
[INFO] running `"docker" "rm" "-f" "7d4a5debaf1e1c429961fb170062f165f9ec1eca46bdd0f387e60707b04fe7b6"`
[INFO] [stdout] 7d4a5debaf1e1c429961fb170062f165f9ec1eca46bdd0f387e60707b04fe7b6
[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/ageiersbach/viola:/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] 81c2b9516f1032fe04431421a3d40bd5691c94415ec997fdebe894fdda07e407
[INFO] running `"docker" "start" "-a" "81c2b9516f1032fe04431421a3d40bd5691c94415ec997fdebe894fdda07e407"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/viola-79b3253acb9913ee
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test viola::utils::tests::it_gets_correct_type_for_break_punctuation ... ok
[INFO] [stdout] test viola::instrument::tests::new_sets_contents ... ok
[INFO] [stdout] test viola::instrument::tests::length_gets_content_length ... ok
[INFO] [stdout] test viola::utils::tests::it_gets_correct_type_for_alphanumeric_chars ... ok
[INFO] [stdout] test viola::instrument::tests::words_gets_vector_of_strings_from_content ... ok
[INFO] [stdout] test viola::instrument::tests::words_ignores_punctuation ... ok
[INFO] [stdout] test viola::utils::tests::it_gets_correct_type_for_whitespace ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests viola
[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" "81c2b9516f1032fe04431421a3d40bd5691c94415ec997fdebe894fdda07e407"`
[INFO] running `"docker" "rm" "-f" "81c2b9516f1032fe04431421a3d40bd5691c94415ec997fdebe894fdda07e407"`
[INFO] [stdout] 81c2b9516f1032fe04431421a3d40bd5691c94415ec997fdebe894fdda07e407