[INFO] updating cached repository anthropomorphic/Stutter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/anthropomorphic/Stutter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/anthropomorphic/Stutter" "work/ex/beta-1.38-1/sources/1.37.0/gh/anthropomorphic/Stutter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/anthropomorphic/Stutter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/anthropomorphic/Stutter" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/anthropomorphic/Stutter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/anthropomorphic/Stutter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0ac1f61ed302ed025222da39d03901b1d1b15295
[INFO] sha for GitHub repo anthropomorphic/Stutter: 0ac1f61ed302ed025222da39d03901b1d1b15295
[INFO] validating manifest of anthropomorphic/Stutter 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 anthropomorphic/Stutter 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 anthropomorphic/Stutter
[INFO] finished frobbing anthropomorphic/Stutter
[INFO] frobbed toml for anthropomorphic/Stutter written to work/ex/beta-1.38-1/sources/1.37.0/gh/anthropomorphic/Stutter/Cargo.toml
[INFO] started frobbing anthropomorphic/Stutter
[INFO] finished frobbing anthropomorphic/Stutter
[INFO] frobbed toml for anthropomorphic/Stutter written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/anthropomorphic/Stutter/Cargo.toml
[INFO] crate anthropomorphic/Stutter 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 anthropomorphic/Stutter 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/anthropomorphic/Stutter:/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] c317bd39f235fd3a86d4adf32770715f4643fac786d07eb6476678d07bad7b8b
[INFO] running `"docker" "start" "-a" "c317bd39f235fd3a86d4adf32770715f4643fac786d07eb6476678d07bad7b8b"`
[INFO] [stderr]    Compiling stutter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "c317bd39f235fd3a86d4adf32770715f4643fac786d07eb6476678d07bad7b8b"`
[INFO] running `"docker" "rm" "-f" "c317bd39f235fd3a86d4adf32770715f4643fac786d07eb6476678d07bad7b8b"`
[INFO] [stdout] c317bd39f235fd3a86d4adf32770715f4643fac786d07eb6476678d07bad7b8b
[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/anthropomorphic/Stutter:/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] d6d319b5b5482f3ec854d0f491ccab0f1311130bd6de252c5dec63906a2d5978
[INFO] running `"docker" "start" "-a" "d6d319b5b5482f3ec854d0f491ccab0f1311130bd6de252c5dec63906a2d5978"`
[INFO] [stderr]    Compiling stutter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "d6d319b5b5482f3ec854d0f491ccab0f1311130bd6de252c5dec63906a2d5978"`
[INFO] running `"docker" "rm" "-f" "d6d319b5b5482f3ec854d0f491ccab0f1311130bd6de252c5dec63906a2d5978"`
[INFO] [stdout] d6d319b5b5482f3ec854d0f491ccab0f1311130bd6de252c5dec63906a2d5978
[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/anthropomorphic/Stutter:/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] f9d09f3c8de5298cc4f840c2663ff39263cc2cc4051ebe84adc5f9c3b0deb00e
[INFO] running `"docker" "start" "-a" "f9d09f3c8de5298cc4f840c2663ff39263cc2cc4051ebe84adc5f9c3b0deb00e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stutter-cc386b327fcb4e20
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tokenize::test::test_ident ... ok
[INFO] [stdout] test tokenize::test::test_string ... ok
[INFO] [stdout] test tokenize::test::test_is_numeric ... ok
[INFO] [stdout] test tokenize::test::test_is_alpha ... ok
[INFO] [stdout] test tokenize::test::test_is_alpha_numeric ... ok
[INFO] [stdout] test tokenize::test::test_number ... ok
[INFO] [stdout] test tokenize::test::test_tokenize ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f9d09f3c8de5298cc4f840c2663ff39263cc2cc4051ebe84adc5f9c3b0deb00e"`
[INFO] running `"docker" "rm" "-f" "f9d09f3c8de5298cc4f840c2663ff39263cc2cc4051ebe84adc5f9c3b0deb00e"`
[INFO] [stdout] f9d09f3c8de5298cc4f840c2663ff39263cc2cc4051ebe84adc5f9c3b0deb00e