[INFO] updating cached repository https://github.com/KineticCookie/markov-text
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c822ac138e430d7fb531057329554334411d31dd
[INFO] testing KineticCookie/markov-text against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FKineticCookie%2Fmarkov-text" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KineticCookie/markov-text on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/KineticCookie/markov-text
[INFO] finished tweaking git repo https://github.com/KineticCookie/markov-text
[INFO] tweaked toml for git repo https://github.com/KineticCookie/markov-text written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/KineticCookie/markov-text already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] a95e3a147b8d4ee95ab81e83cb8efa1bc8d2014cfad43a0fa12dbd28d6599ca3
[INFO] running `"docker" "start" "-a" "a95e3a147b8d4ee95ab81e83cb8efa1bc8d2014cfad43a0fa12dbd28d6599ca3"`
[INFO] [stderr]    Compiling docopt v0.6.86
[INFO] [stderr]    Compiling markov-text v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:32:21
[INFO] [stderr]    |
[INFO] [stderr] 32 |                 let mut submap = self.map.entry(prev_item.unwrap().clone()).or_insert(HashMap::new());
[INFO] [stderr]    |                     ----^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:33:21
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 let mut prob = submap.entry(item.clone()).or_insert(0);
[INFO] [stderr]    |                     ----^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.60s
[INFO] running `"docker" "inspect" "a95e3a147b8d4ee95ab81e83cb8efa1bc8d2014cfad43a0fa12dbd28d6599ca3"`
[INFO] running `"docker" "rm" "-f" "a95e3a147b8d4ee95ab81e83cb8efa1bc8d2014cfad43a0fa12dbd28d6599ca3"`
[INFO] [stdout] a95e3a147b8d4ee95ab81e83cb8efa1bc8d2014cfad43a0fa12dbd28d6599ca3
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] bdc28a7edc8d1abde7144e60373d4a6ca71cabed275031e3f2dafbef94985adc
[INFO] running `"docker" "start" "-a" "bdc28a7edc8d1abde7144e60373d4a6ca71cabed275031e3f2dafbef94985adc"`
[INFO] [stderr]    Compiling markov-text v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:32:21
[INFO] [stderr]    |
[INFO] [stderr] 32 |                 let mut submap = self.map.entry(prev_item.unwrap().clone()).or_insert(HashMap::new());
[INFO] [stderr]    |                     ----^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:33:21
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 let mut prob = submap.entry(item.clone()).or_insert(0);
[INFO] [stderr]    |                     ----^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `"docker" "inspect" "bdc28a7edc8d1abde7144e60373d4a6ca71cabed275031e3f2dafbef94985adc"`
[INFO] running `"docker" "rm" "-f" "bdc28a7edc8d1abde7144e60373d4a6ca71cabed275031e3f2dafbef94985adc"`
[INFO] [stdout] bdc28a7edc8d1abde7144e60373d4a6ca71cabed275031e3f2dafbef94985adc
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] e389a2c9b26d0a6feed1149803b95f7cc5aaf0ad35220351cca58bd5aa915bed
[INFO] running `"docker" "start" "-a" "e389a2c9b26d0a6feed1149803b95f7cc5aaf0ad35220351cca58bd5aa915bed"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/markov_text-d307f0ac86bd3f4a
[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" "e389a2c9b26d0a6feed1149803b95f7cc5aaf0ad35220351cca58bd5aa915bed"`
[INFO] running `"docker" "rm" "-f" "e389a2c9b26d0a6feed1149803b95f7cc5aaf0ad35220351cca58bd5aa915bed"`
[INFO] [stdout] e389a2c9b26d0a6feed1149803b95f7cc5aaf0ad35220351cca58bd5aa915bed