[INFO] updating cached repository Sporious/missionaries_and_cannibals_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Sporious/missionaries_and_cannibals_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Sporious/missionaries_and_cannibals_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/Sporious/missionaries_and_cannibals_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Sporious/missionaries_and_cannibals_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Sporious/missionaries_and_cannibals_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Sporious/missionaries_and_cannibals_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Sporious/missionaries_and_cannibals_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b2bdfde88abaab5e31944f3e8b91297062b93fd8
[INFO] sha for GitHub repo Sporious/missionaries_and_cannibals_rust: b2bdfde88abaab5e31944f3e8b91297062b93fd8
[INFO] validating manifest of Sporious/missionaries_and_cannibals_rust 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 Sporious/missionaries_and_cannibals_rust 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 Sporious/missionaries_and_cannibals_rust
[INFO] finished frobbing Sporious/missionaries_and_cannibals_rust
[INFO] frobbed toml for Sporious/missionaries_and_cannibals_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/Sporious/missionaries_and_cannibals_rust/Cargo.toml
[INFO] started frobbing Sporious/missionaries_and_cannibals_rust
[INFO] finished frobbing Sporious/missionaries_and_cannibals_rust
[INFO] frobbed toml for Sporious/missionaries_and_cannibals_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Sporious/missionaries_and_cannibals_rust/Cargo.toml
[INFO] crate Sporious/missionaries_and_cannibals_rust 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing Sporious/missionaries_and_cannibals_rust 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Sporious/missionaries_and_cannibals_rust:/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] b238c3e957d44791c46dac59038f2a05122d0d8d69ca2d5b6a703f0362577657
[INFO] running `"docker" "start" "-a" "b238c3e957d44791c46dac59038f2a05122d0d8d69ca2d5b6a703f0362577657"`
[INFO] [stderr]    Compiling missionaries_and_cannibals v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:71:29
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `delim`
[INFO] [stderr]   --> src/main.rs:26:38
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn get_count_from_string(line: &str, delim: char) -> usize {
[INFO] [stderr]    |                                      ^^^^^ help: consider prefixing with an underscore: `_delim`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cannibals`
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let cannibals = get_count_from_string(line, 'c');
[INFO] [stderr]    |         ^^^^^^^^^ help: consider prefixing with an underscore: `_cannibals`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `missionaries`
[INFO] [stderr]   --> src/main.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let missionaries = get_count_from_string(line, 'm');
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_missionaries`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `problem_state`
[INFO] [stderr]   --> src/main.rs:75:9
[INFO] [stderr]    |
[INFO] [stderr] 75 |     let problem_state = input.lines().fold(ProblemState::default(), |a, l| {
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_problem_state`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_missionaries`
[INFO] [stderr]   --> src/main.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn with_missionaries(self, count: usize) -> BankState {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_cannibals`
[INFO] [stderr]   --> src/main.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn with_cannibals(self, count: usize) -> BankState {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_raft`
[INFO] [stderr]   --> src/main.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn with_raft(self) -> BankState {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "b238c3e957d44791c46dac59038f2a05122d0d8d69ca2d5b6a703f0362577657"`
[INFO] running `"docker" "rm" "-f" "b238c3e957d44791c46dac59038f2a05122d0d8d69ca2d5b6a703f0362577657"`
[INFO] [stdout] b238c3e957d44791c46dac59038f2a05122d0d8d69ca2d5b6a703f0362577657
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Sporious/missionaries_and_cannibals_rust:/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] aba8184acab5d9ce4fcebb68e621b2ab5cbd6dc5d38b7e1d434c6723fb5fc3f5
[INFO] running `"docker" "start" "-a" "aba8184acab5d9ce4fcebb68e621b2ab5cbd6dc5d38b7e1d434c6723fb5fc3f5"`
[INFO] [stderr]    Compiling missionaries_and_cannibals v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:71:29
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `delim`
[INFO] [stderr]   --> src/main.rs:26:38
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn get_count_from_string(line: &str, delim: char) -> usize {
[INFO] [stderr]    |                                      ^^^^^ help: consider prefixing with an underscore: `_delim`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cannibals`
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let cannibals = get_count_from_string(line, 'c');
[INFO] [stderr]    |         ^^^^^^^^^ help: consider prefixing with an underscore: `_cannibals`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `missionaries`
[INFO] [stderr]   --> src/main.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let missionaries = get_count_from_string(line, 'm');
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_missionaries`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `problem_state`
[INFO] [stderr]   --> src/main.rs:75:9
[INFO] [stderr]    |
[INFO] [stderr] 75 |     let problem_state = input.lines().fold(ProblemState::default(), |a, l| {
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_problem_state`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_missionaries`
[INFO] [stderr]   --> src/main.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn with_missionaries(self, count: usize) -> BankState {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_cannibals`
[INFO] [stderr]   --> src/main.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn with_cannibals(self, count: usize) -> BankState {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_raft`
[INFO] [stderr]   --> src/main.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn with_raft(self) -> BankState {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "aba8184acab5d9ce4fcebb68e621b2ab5cbd6dc5d38b7e1d434c6723fb5fc3f5"`
[INFO] running `"docker" "rm" "-f" "aba8184acab5d9ce4fcebb68e621b2ab5cbd6dc5d38b7e1d434c6723fb5fc3f5"`
[INFO] [stdout] aba8184acab5d9ce4fcebb68e621b2ab5cbd6dc5d38b7e1d434c6723fb5fc3f5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Sporious/missionaries_and_cannibals_rust:/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] 75eaaa329433ac11c154c3a9dab74cf7979f96c3790c919c585b66f2100074af
[INFO] running `"docker" "start" "-a" "75eaaa329433ac11c154c3a9dab74cf7979f96c3790c919c585b66f2100074af"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/missionaries_and_cannibals-880f5cca25f6e512
[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" "75eaaa329433ac11c154c3a9dab74cf7979f96c3790c919c585b66f2100074af"`
[INFO] running `"docker" "rm" "-f" "75eaaa329433ac11c154c3a9dab74cf7979f96c3790c919c585b66f2100074af"`
[INFO] [stdout] 75eaaa329433ac11c154c3a9dab74cf7979f96c3790c919c585b66f2100074af