Dec 02 07:26:20.357 INFO testing Globidev/push-swap against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 07:26:20.357 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 07:26:20.684 INFO [stdout] e2e6a66974c796fa370f51f6fee210d30592d3a9ca52c64af06b67f67d84935a
Dec 02 07:26:20.695 INFO running `"docker" "start" "-a" "e2e6a66974c796fa370f51f6fee210d30592d3a9ca52c64af06b67f67d84935a"`
Dec 02 07:26:21.939 INFO [stderr] usermod: no changes
Dec 02 07:26:22.083 INFO [stderr]    Compiling structopt v0.2.10
Dec 02 07:26:23.171 INFO [stderr]    Compiling push-swap v0.1.0 (/source)
Dec 02 07:26:24.871 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 07:26:24.871 INFO [stderr]  --> src/main.rs:1:1
Dec 02 07:26:24.871 INFO [stderr]   |
Dec 02 07:26:24.871 INFO [stderr] 1 | #![feature(generators, generator_trait)]
Dec 02 07:26:24.871 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 07:26:24.871 INFO [stderr] 
Dec 02 07:26:24.871 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 07:26:24.871 INFO [stderr]  --> src/main.rs:2:1
Dec 02 07:26:24.871 INFO [stderr]   |
Dec 02 07:26:24.871 INFO [stderr] 2 | #![feature(iterator_find_map)]
Dec 02 07:26:24.871 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 07:26:24.871 INFO [stderr] 
Dec 02 07:26:24.871 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 07:26:24.871 INFO [stderr] 
Dec 02 07:26:24.871 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 07:26:24.883 INFO [stderr] error: Could not compile `push-swap`.
Dec 02 07:26:24.883 INFO [stderr] 
Dec 02 07:26:24.883 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 07:26:24.883 INFO [stderr] su: No module specific data is present
Dec 02 07:26:25.331 INFO running `"docker" "inspect" "e2e6a66974c796fa370f51f6fee210d30592d3a9ca52c64af06b67f67d84935a"`
Dec 02 07:26:25.595 INFO running `"docker" "rm" "-f" "e2e6a66974c796fa370f51f6fee210d30592d3a9ca52c64af06b67f67d84935a"`
Dec 02 07:26:25.818 INFO [stdout] e2e6a66974c796fa370f51f6fee210d30592d3a9ca52c64af06b67f67d84935a