[INFO] updating cached repository museun/brain
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/museun/brain
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/museun/brain" "work/ex/beta-1.37-6/sources/1.36.0/gh/museun/brain"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/museun/brain'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/museun/brain" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/museun/brain"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/museun/brain'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3697b11dc64c67fa4a2321b5224c8ff17094f02c
[INFO] sha for GitHub repo museun/brain: 3697b11dc64c67fa4a2321b5224c8ff17094f02c
[INFO] validating manifest of museun/brain 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 museun/brain 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 museun/brain
[INFO] finished frobbing museun/brain
[INFO] frobbed toml for museun/brain written to work/ex/beta-1.37-6/sources/1.36.0/gh/museun/brain/Cargo.toml
[INFO] started frobbing museun/brain
[INFO] finished frobbing museun/brain
[INFO] frobbed toml for museun/brain written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/museun/brain/Cargo.toml
[INFO] crate museun/brain 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 museun/brain 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-5/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/museun/brain:/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] 09c815172c605c60e344a4c351b6be5905cce7286642eb2a315efc0ba8c83eb1
[INFO] running `"docker" "start" "-a" "09c815172c605c60e344a4c351b6be5905cce7286642eb2a315efc0ba8c83eb1"`
[INFO] [stderr]    Compiling serde v1.0.81
[INFO] [stderr]    Compiling serde_derive v1.0.81
[INFO] [stderr]    Compiling tiny_http v0.6.0
[INFO] [stderr]    Compiling hashbrown v0.1.7
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling brain v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/markov.rs:41:35
[INFO] [stderr]    |
[INFO] [stderr] 41 |             let start = &words[0].trim_left_matches(|c: char| !c.is_alphabetic());
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.17s
[INFO] running `"docker" "inspect" "09c815172c605c60e344a4c351b6be5905cce7286642eb2a315efc0ba8c83eb1"`
[INFO] running `"docker" "rm" "-f" "09c815172c605c60e344a4c351b6be5905cce7286642eb2a315efc0ba8c83eb1"`
[INFO] [stdout] 09c815172c605c60e344a4c351b6be5905cce7286642eb2a315efc0ba8c83eb1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/museun/brain:/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] 7d57276c6f5705ef0dc427ab8a17d5be748960aefac741cab175447b279f4617
[INFO] running `"docker" "start" "-a" "7d57276c6f5705ef0dc427ab8a17d5be748960aefac741cab175447b279f4617"`
[INFO] [stderr]    Compiling brain v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/markov.rs:41:35
[INFO] [stderr]    |
[INFO] [stderr] 41 |             let start = &words[0].trim_left_matches(|c: char| !c.is_alphabetic());
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `"docker" "inspect" "7d57276c6f5705ef0dc427ab8a17d5be748960aefac741cab175447b279f4617"`
[INFO] running `"docker" "rm" "-f" "7d57276c6f5705ef0dc427ab8a17d5be748960aefac741cab175447b279f4617"`
[INFO] [stdout] 7d57276c6f5705ef0dc427ab8a17d5be748960aefac741cab175447b279f4617
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/museun/brain:/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] d6b55dbd51e527750b568f9755c2e6dd39379ea3e20451e095e8b26230f5983e
[INFO] running `"docker" "start" "-a" "d6b55dbd51e527750b568f9755c2e6dd39379ea3e20451e095e8b26230f5983e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/brain-c6530ba91eacd80f
[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] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/brain-afedea78b2863a5f
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests brain
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "d6b55dbd51e527750b568f9755c2e6dd39379ea3e20451e095e8b26230f5983e"`
[INFO] running `"docker" "rm" "-f" "d6b55dbd51e527750b568f9755c2e6dd39379ea3e20451e095e8b26230f5983e"`
[INFO] [stdout] d6b55dbd51e527750b568f9755c2e6dd39379ea3e20451e095e8b26230f5983e