[INFO] updating cached repository ReolSt/rs_in_jung
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ReolSt/rs_in_jung
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ReolSt/rs_in_jung" "work/ex/beta-1.37-6/sources/1.36.0/gh/ReolSt/rs_in_jung"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ReolSt/rs_in_jung'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ReolSt/rs_in_jung" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ReolSt/rs_in_jung"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ReolSt/rs_in_jung'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fea055e79c877c07c30a200d56e4a88005bb1d43
[INFO] sha for GitHub repo ReolSt/rs_in_jung: fea055e79c877c07c30a200d56e4a88005bb1d43
[INFO] validating manifest of ReolSt/rs_in_jung on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ReolSt/rs_in_jung on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ReolSt/rs_in_jung
[INFO] finished frobbing ReolSt/rs_in_jung
[INFO] frobbed toml for ReolSt/rs_in_jung written to work/ex/beta-1.37-6/sources/1.36.0/gh/ReolSt/rs_in_jung/Cargo.toml
[INFO] started frobbing ReolSt/rs_in_jung
[INFO] finished frobbing ReolSt/rs_in_jung
[INFO] frobbed toml for ReolSt/rs_in_jung written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ReolSt/rs_in_jung/Cargo.toml
[INFO] crate ReolSt/rs_in_jung already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ReolSt/rs_in_jung against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ReolSt/rs_in_jung:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 3eef19b9f590acaf6b033cbf5a4aeaea50241b1a38e33546670e6dd1d086447b
[INFO] running `"docker" "start" "-a" "3eef19b9f590acaf6b033cbf5a4aeaea50241b1a38e33546670e6dd1d086447b"`
[INFO] [stderr]    Compiling getopts v0.2.15
[INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.15/src/lib.rs:1033:33
[INFO] [stderr]      |
[INFO] [stderr] 978  |     let mut machine = |cont: &mut bool, (i, c): (usize, char)| {
[INFO] [stderr]      |                       ---------------------------------------- borrow of `state` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 982  |         state = match (state, whitespace, limit) {
[INFO] [stderr]      |         ----- borrow occurs due to use of `state` in closure
[INFO] [stderr] ...
[INFO] [stderr] 1033 |     while cont && match state { B | C => true, A => false } {
[INFO] [stderr]      |                                 ^ use of borrowed `state`
[INFO] [stderr] 1034 |         machine(&mut cont, (fake_i, ' '));
[INFO] [stderr]      |         ------- borrow later used here
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]      = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr] 
[INFO] [stderr]    Compiling rs_in_jung v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0583]: file not found for module `GCC`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | mod GCC;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: name the file either GCC.rs or GCC/mod.rs inside the directory "src"
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0583`.
[INFO] [stderr] error: Could not compile `rs_in_jung`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3eef19b9f590acaf6b033cbf5a4aeaea50241b1a38e33546670e6dd1d086447b"`
[INFO] running `"docker" "rm" "-f" "3eef19b9f590acaf6b033cbf5a4aeaea50241b1a38e33546670e6dd1d086447b"`
[INFO] [stdout] 3eef19b9f590acaf6b033cbf5a4aeaea50241b1a38e33546670e6dd1d086447b