Dec 03 20:14:39.209 INFO testing acgmath-0.1.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 20:14:39.209 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 03 20:14:39.554 INFO [stdout] 70ccbd039c4fedb89c2f021e02c7ec684801c848180ff108e7bd485c2f0302f1
Dec 03 20:14:39.560 INFO running `"docker" "start" "-a" "70ccbd039c4fedb89c2f021e02c7ec684801c848180ff108e7bd485c2f0302f1"`
Dec 03 20:14:40.144 INFO [stderr] usermod: no changes
Dec 03 20:14:40.258 INFO [stderr]    Compiling simd v0.2.3
Dec 03 20:14:42.515 INFO [stderr]    Compiling acgmath v0.1.1 (/source)
Dec 03 20:14:44.383 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 20:14:44.383 INFO [stderr]   --> src/lib.rs:52:35
Dec 03 20:14:44.383 INFO [stderr]    |
Dec 03 20:14:44.383 INFO [stderr] 52 | #![cfg_attr(feature = "use_simd", feature(specialization))]
Dec 03 20:14:44.383 INFO [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 20:14:44.383 INFO [stderr] 
Dec 03 20:14:44.451 INFO [stderr] error: aborting due to previous error
Dec 03 20:14:44.451 INFO [stderr] 
Dec 03 20:14:44.451 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 20:14:44.467 INFO [stderr] error: Could not compile `acgmath`.
Dec 03 20:14:44.467 INFO [stderr] 
Dec 03 20:14:44.467 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 20:14:44.467 INFO [stderr] su: No module specific data is present
Dec 03 20:14:45.202 INFO running `"docker" "inspect" "70ccbd039c4fedb89c2f021e02c7ec684801c848180ff108e7bd485c2f0302f1"`
Dec 03 20:14:45.340 INFO running `"docker" "rm" "-f" "70ccbd039c4fedb89c2f021e02c7ec684801c848180ff108e7bd485c2f0302f1"`
Dec 03 20:14:45.505 INFO [stdout] 70ccbd039c4fedb89c2f021e02c7ec684801c848180ff108e7bd485c2f0302f1