[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-1.38-1/sources/1.37.0/gh/mxhold/markov_rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mxhold/markov_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mxhold/markov_rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mxhold/markov_rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mxhold/markov_rs 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 mxhold/markov_rs
[INFO] finished frobbing mxhold/markov_rs
[INFO] frobbed toml for mxhold/markov_rs written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 mxhold/markov_rs 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-2/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/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] b0dfcbaa08e019147f2ff7b24e9578ad5c8fcaad9748227bf1119741927eea75
[INFO] running `"docker" "start" "-a" "b0dfcbaa08e019147f2ff7b24e9578ad5c8fcaad9748227bf1119741927eea75"`
[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 1.63s
[INFO] running `"docker" "inspect" "b0dfcbaa08e019147f2ff7b24e9578ad5c8fcaad9748227bf1119741927eea75"`
[INFO] running `"docker" "rm" "-f" "b0dfcbaa08e019147f2ff7b24e9578ad5c8fcaad9748227bf1119741927eea75"`
[INFO] [stdout] b0dfcbaa08e019147f2ff7b24e9578ad5c8fcaad9748227bf1119741927eea75
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0d831c0ba8d25c2fbf3ee0322ead204cd64458229cb91cd741cf7a3c7d67e668
[INFO] running `"docker" "start" "-a" "0d831c0ba8d25c2fbf3ee0322ead204cd64458229cb91cd741cf7a3c7d67e668"`
[INFO] [stderr]    Compiling markov_rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "0d831c0ba8d25c2fbf3ee0322ead204cd64458229cb91cd741cf7a3c7d67e668"`
[INFO] running `"docker" "rm" "-f" "0d831c0ba8d25c2fbf3ee0322ead204cd64458229cb91cd741cf7a3c7d67e668"`
[INFO] [stdout] 0d831c0ba8d25c2fbf3ee0322ead204cd64458229cb91cd741cf7a3c7d67e668
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 5496b4cbf84ac3771149d48b27820ea16d2a6f821d302436dd8bc84de48a09d0
[INFO] running `"docker" "start" "-a" "5496b4cbf84ac3771149d48b27820ea16d2a6f821d302436dd8bc84de48a09d0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/markov_rs-1515668a5044be47
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_parse ... ok
[INFO] [stdout] test test_generate ... 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" "5496b4cbf84ac3771149d48b27820ea16d2a6f821d302436dd8bc84de48a09d0"`
[INFO] running `"docker" "rm" "-f" "5496b4cbf84ac3771149d48b27820ea16d2a6f821d302436dd8bc84de48a09d0"`
[INFO] [stdout] 5496b4cbf84ac3771149d48b27820ea16d2a6f821d302436dd8bc84de48a09d0