[INFO] updating cached repository https://github.com/ex0dus-0x/xb_automata
[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] 0efdc651a7bc67b75cafae1be2863556e1e4ec2c
[INFO] testing ex0dus-0x/xb_automata against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fex0dus-0x%2Fxb_automata" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ex0dus-0x/xb_automata 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/ex0dus-0x/xb_automata
[INFO] finished tweaking git repo https://github.com/ex0dus-0x/xb_automata
[INFO] tweaked toml for git repo https://github.com/ex0dus-0x/xb_automata written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ex0dus-0x/xb_automata 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] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/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] b7751aaff50f326972edf79af3b67bd77c8a28c86fdc34293c309fdea5dc12d8
[INFO] running `"docker" "start" "-a" "b7751aaff50f326972edf79af3b67bd77c8a28c86fdc34293c309fdea5dc12d8"`
[INFO] [stderr]    Compiling xb_automata v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0449]: unnecessary visibility qualifier
[INFO] [stderr]   --> src/lib.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn xb_new(vec_state: Vec<(char, &'a str)>, vec_instruction: Vec<(char, char, &'a str)>) -> XbMachine<'a> {
[INFO] [stderr]    |     ^^^ `pub` not permitted here because it's implied
[INFO] [stderr] 
[INFO] [stderr] error[E0449]: unnecessary visibility qualifier
[INFO] [stderr]   --> src/lib.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn xb_simulate(&mut self) -> () {
[INFO] [stderr]    |     ^^^ `pub` not permitted here because it's implied
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 98  | /         loop {
[INFO] [stderr] 99  | |
[INFO] [stderr] 100 | |             // Iterate over the HashMap by unpacking the key (State) and value (Instruction)
[INFO] [stderr] 101 | |             for (state, instruction) in self.iter() {
[INFO] [stderr] ...   |
[INFO] [stderr] 137 | |             }
[INFO] [stderr] 138 | |         }
[INFO] [stderr]     | |_________- any code following this expression is unreachable
[INFO] [stderr] 139 |           ()
[INFO] [stderr]     |           ^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0449`.
[INFO] [stderr] error: could not compile `xb_automata`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b7751aaff50f326972edf79af3b67bd77c8a28c86fdc34293c309fdea5dc12d8"`
[INFO] running `"docker" "rm" "-f" "b7751aaff50f326972edf79af3b67bd77c8a28c86fdc34293c309fdea5dc12d8"`
[INFO] [stdout] b7751aaff50f326972edf79af3b67bd77c8a28c86fdc34293c309fdea5dc12d8