Dec 02 07:26:23.432 INFO testing Globidev/push-swap against 1.30.1 for beta-1.31-5
Dec 02 07:26:23.432 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/1.30.1:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 07:26:23.891 INFO [stdout] 71f890bf8e00e6412d57882d8be06848eddcc4ed02365bd4f353254f50aafb5d
Dec 02 07:26:23.893 INFO running `"docker" "start" "-a" "71f890bf8e00e6412d57882d8be06848eddcc4ed02365bd4f353254f50aafb5d"`
Dec 02 07:26:25.075 INFO [stderr] usermod: no changes
Dec 02 07:26:25.231 INFO [stderr]    Compiling structopt-derive v0.2.10
Dec 02 07:26:25.231 INFO [stderr]    Compiling crossbeam-deque v0.6.1
Dec 02 07:26:31.654 INFO [stderr]    Compiling structopt v0.2.10
Dec 02 07:26:32.903 INFO [stderr]    Compiling push-swap v0.1.0 (/source)
Dec 02 07:26:34.851 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 07:26:34.851 INFO [stderr]  --> src/main.rs:1:1
Dec 02 07:26:34.851 INFO [stderr]   |
Dec 02 07:26:34.851 INFO [stderr] 1 | #![feature(generators, generator_trait)]
Dec 02 07:26:34.851 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 07:26:34.851 INFO [stderr] 
Dec 02 07:26:34.851 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 07:26:34.851 INFO [stderr]  --> src/main.rs:2:1
Dec 02 07:26:34.851 INFO [stderr]   |
Dec 02 07:26:34.851 INFO [stderr] 2 | #![feature(iterator_find_map)]
Dec 02 07:26:34.851 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 07:26:34.851 INFO [stderr] 
Dec 02 07:26:34.860 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 07:26:34.860 INFO [stderr] 
Dec 02 07:26:34.860 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 07:26:34.864 INFO [stderr] error: Could not compile `push-swap`.
Dec 02 07:26:34.864 INFO [stderr] 
Dec 02 07:26:34.864 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 07:26:34.866 INFO [stderr] su: No module specific data is present
Dec 02 07:26:36.206 INFO running `"docker" "inspect" "71f890bf8e00e6412d57882d8be06848eddcc4ed02365bd4f353254f50aafb5d"`
Dec 02 07:26:36.483 INFO running `"docker" "rm" "-f" "71f890bf8e00e6412d57882d8be06848eddcc4ed02365bd4f353254f50aafb5d"`
Dec 02 07:26:36.759 INFO [stdout] 71f890bf8e00e6412d57882d8be06848eddcc4ed02365bd4f353254f50aafb5d