[INFO] updating cached repository mxhold/markov_rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mxhold/markov_rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mxhold/markov_rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/mxhold/markov_rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mxhold/markov_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mxhold/markov_rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mxhold/markov_rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mxhold/markov_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9d14f00e77a44a01c7fcb88257c01477c7108767
[INFO] sha for GitHub repo mxhold/markov_rs: 9d14f00e77a44a01c7fcb88257c01477c7108767
[INFO] validating manifest of mxhold/markov_rs 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 mxhold/markov_rs 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 mxhold/markov_rs
[INFO] finished frobbing mxhold/markov_rs
[INFO] frobbed toml for mxhold/markov_rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/mxhold/markov_rs/Cargo.toml
[INFO] started frobbing mxhold/markov_rs
[INFO] finished frobbing mxhold/markov_rs
[INFO] frobbed toml for mxhold/markov_rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mxhold/markov_rs/Cargo.toml
[INFO] crate mxhold/markov_rs 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/mxhold/markov_rs/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 mxhold/markov_rs 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-3/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/mxhold/markov_rs:/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] f5e1785264df5a30d682a27dfa544eac2b0cd5bc6f516fa5ede7fa6de58eba41
[INFO] running `"docker" "start" "-a" "f5e1785264df5a30d682a27dfa544eac2b0cd5bc6f516fa5ede7fa6de58eba41"`
[INFO] [stderr]    Compiling markov_rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `seed`
[INFO] [stderr]   --> src/main.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn seed(&mut self, seed: [u32; 4]) -> &mut MarkovChainTable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `"docker" "inspect" "f5e1785264df5a30d682a27dfa544eac2b0cd5bc6f516fa5ede7fa6de58eba41"`
[INFO] running `"docker" "rm" "-f" "f5e1785264df5a30d682a27dfa544eac2b0cd5bc6f516fa5ede7fa6de58eba41"`
[INFO] [stdout] f5e1785264df5a30d682a27dfa544eac2b0cd5bc6f516fa5ede7fa6de58eba41
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/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/mxhold/markov_rs:/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] 155f9b73281debae439b83290f0910b79073a0b29e89619edeadc04a4f97d4b7
[INFO] running `"docker" "start" "-a" "155f9b73281debae439b83290f0910b79073a0b29e89619edeadc04a4f97d4b7"`
[INFO] [stderr]    Compiling markov_rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `"docker" "inspect" "155f9b73281debae439b83290f0910b79073a0b29e89619edeadc04a4f97d4b7"`
[INFO] running `"docker" "rm" "-f" "155f9b73281debae439b83290f0910b79073a0b29e89619edeadc04a4f97d4b7"`
[INFO] [stdout] 155f9b73281debae439b83290f0910b79073a0b29e89619edeadc04a4f97d4b7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/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/mxhold/markov_rs:/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] 02dab4e52203be70086ed0bf599921096190593ccd8cf1361032d3db8dc7e1a2
[INFO] running `"docker" "start" "-a" "02dab4e52203be70086ed0bf599921096190593ccd8cf1361032d3db8dc7e1a2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/markov_rs-c0bc9120b45035f9
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_generate ... ok
[INFO] [stdout] test test_parse ... ok
[INFO] [stdout] test test_tokenize ... 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" "02dab4e52203be70086ed0bf599921096190593ccd8cf1361032d3db8dc7e1a2"`
[INFO] running `"docker" "rm" "-f" "02dab4e52203be70086ed0bf599921096190593ccd8cf1361032d3db8dc7e1a2"`
[INFO] [stdout] 02dab4e52203be70086ed0bf599921096190593ccd8cf1361032d3db8dc7e1a2