Dec 02 10:55:59.152 INFO testing witty-1.0.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 10:55:59.153 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 10:55:59.363 INFO [stdout] fd8fe8d9b7d7e17e6232529c7be39b58119796ab208e5faa5ce6a909c95666dd
Dec 02 10:55:59.363 INFO running `"docker" "start" "-a" "fd8fe8d9b7d7e17e6232529c7be39b58119796ab208e5faa5ce6a909c95666dd"`
Dec 02 10:56:00.103 INFO [stderr] usermod: no changes
Dec 02 10:56:00.302 INFO [stderr]    Compiling rayon v0.8.2
Dec 02 10:56:04.067 INFO [stderr]    Compiling ring v0.12.1
Dec 02 10:56:13.541 INFO [stderr]    Compiling webpki v0.17.0
Dec 02 10:56:13.541 INFO [stderr]    Compiling sct v0.2.0
Dec 02 10:56:15.043 INFO [stderr]    Compiling ct-logs v0.2.0
Dec 02 10:56:15.995 INFO [stderr]    Compiling rustls v0.11.0
Dec 02 10:56:15.995 INFO [stderr]    Compiling webpki-roots v0.13.0
Dec 02 10:56:26.835 INFO [stderr]    Compiling tokio-rustls v0.4.0
Dec 02 10:56:30.930 INFO [stderr]    Compiling hyper-rustls v0.11.0
Dec 02 10:56:36.807 INFO [stderr]    Compiling witty v1.0.0 (/source)
Dec 02 10:56:42.108 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 10:56:42.108 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 10:56:42.108 INFO [stderr]   |
Dec 02 10:56:42.109 INFO [stderr] 1 | #![feature(proc_macro)]
Dec 02 10:56:42.109 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 10:56:42.109 INFO [stderr] 
Dec 02 10:56:42.109 INFO [stderr] error: aborting due to previous error
Dec 02 10:56:42.109 INFO [stderr] 
Dec 02 10:56:42.110 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 10:56:42.132 INFO [stderr] error: Could not compile `witty`.
Dec 02 10:56:42.132 INFO [stderr] 
Dec 02 10:56:42.132 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 10:56:42.135 INFO [stderr] su: No module specific data is present
Dec 02 10:56:43.055 INFO running `"docker" "inspect" "fd8fe8d9b7d7e17e6232529c7be39b58119796ab208e5faa5ce6a909c95666dd"`
Dec 02 10:56:43.337 INFO running `"docker" "rm" "-f" "fd8fe8d9b7d7e17e6232529c7be39b58119796ab208e5faa5ce6a909c95666dd"`
Dec 02 10:56:43.674 INFO [stdout] fd8fe8d9b7d7e17e6232529c7be39b58119796ab208e5faa5ce6a909c95666dd