[INFO] updating cached repository ex0dus-0x/xb_automata
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ex0dus-0x/xb_automata
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ex0dus-0x/xb_automata" "work/ex/beta-1.38-1/sources/1.37.0/gh/ex0dus-0x/xb_automata"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ex0dus-0x/xb_automata'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ex0dus-0x/xb_automata" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ex0dus-0x/xb_automata"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ex0dus-0x/xb_automata'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0efdc651a7bc67b75cafae1be2863556e1e4ec2c
[INFO] sha for GitHub repo ex0dus-0x/xb_automata: 0efdc651a7bc67b75cafae1be2863556e1e4ec2c
[INFO] validating manifest of ex0dus-0x/xb_automata 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 ex0dus-0x/xb_automata 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 ex0dus-0x/xb_automata
[INFO] finished frobbing ex0dus-0x/xb_automata
[INFO] frobbed toml for ex0dus-0x/xb_automata written to work/ex/beta-1.38-1/sources/1.37.0/gh/ex0dus-0x/xb_automata/Cargo.toml
[INFO] started frobbing ex0dus-0x/xb_automata
[INFO] finished frobbing ex0dus-0x/xb_automata
[INFO] frobbed toml for ex0dus-0x/xb_automata written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ex0dus-0x/xb_automata/Cargo.toml
[INFO] crate ex0dus-0x/xb_automata 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ex0dus-0x/xb_automata 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ex0dus-0x/xb_automata:/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] 9b4e9aa8b03375346e20f9e6f7dbd66b6f3a7d8aa277a3105bb159562f29337d
[INFO] running `"docker" "start" "-a" "9b4e9aa8b03375346e20f9e6f7dbd66b6f3a7d8aa277a3105bb159562f29337d"`
[INFO] [stderr]    Compiling xb_automata v0.1.0 (/opt/crater/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] 139 |         ()
[INFO] [stderr]     |         ^^
[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" "9b4e9aa8b03375346e20f9e6f7dbd66b6f3a7d8aa277a3105bb159562f29337d"`
[INFO] running `"docker" "rm" "-f" "9b4e9aa8b03375346e20f9e6f7dbd66b6f3a7d8aa277a3105bb159562f29337d"`
[INFO] [stdout] 9b4e9aa8b03375346e20f9e6f7dbd66b6f3a7d8aa277a3105bb159562f29337d