[INFO] updating cached repository https://github.com/timvisee/vigenere-cipher-simple
[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] 046ff5511f6fc4f9dd6024010a5dadff95a6bf22
[INFO] testing timvisee/vigenere-cipher-simple against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimvisee%2Fvigenere-cipher-simple" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timvisee/vigenere-cipher-simple on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/timvisee/vigenere-cipher-simple
[INFO] finished tweaking git repo https://github.com/timvisee/vigenere-cipher-simple
[INFO] tweaked toml for git repo https://github.com/timvisee/vigenere-cipher-simple written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/timvisee/vigenere-cipher-simple already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 8eebd4265ab71f48e98116f2c23c8536fbbf272e724e8bb5dd1d64fba3b41159
[INFO] running `"docker" "start" "-a" "8eebd4265ab71f48e98116f2c23c8536fbbf272e724e8bb5dd1d64fba3b41159"`
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling rayon v1.0.1
[INFO] [stderr]    Compiling vigenere-cipher-simple v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(euclidean_division)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `mod_euc` found for type `i16` in the current scope
[INFO] [stderr]   --> src/main.rs:70:46
[INFO] [stderr]    |
[INFO] [stderr] 70 |                 ((c as i16 - 'A' as i16 - s).mod_euc(26) + 'A' as i16) as u8 as char
[INFO] [stderr]    |                                              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `vigenere-cipher-simple`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8eebd4265ab71f48e98116f2c23c8536fbbf272e724e8bb5dd1d64fba3b41159"`
[INFO] running `"docker" "rm" "-f" "8eebd4265ab71f48e98116f2c23c8536fbbf272e724e8bb5dd1d64fba3b41159"`
[INFO] [stdout] 8eebd4265ab71f48e98116f2c23c8536fbbf272e724e8bb5dd1d64fba3b41159