Dec 01 02:12:28.744 INFO testing sinitcin/poll_engine against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 01 02:12:28.744 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 01 02:12:29.227 INFO [stdout] 94f5eb13428f8409d98ceba8beaff7651a236ba35342b82fe4774c42a3c0fd6d
Dec 01 02:12:29.233 INFO running `"docker" "start" "-a" "94f5eb13428f8409d98ceba8beaff7651a236ba35342b82fe4774c42a3c0fd6d"`
Dec 01 02:12:30.267 INFO [stderr] usermod: no changes
Dec 01 02:12:30.383 INFO [stderr]    Compiling ioctl-rs v0.1.6
Dec 01 02:12:30.383 INFO [stderr]    Compiling termios v0.2.2
Dec 01 02:12:30.383 INFO [stderr]    Compiling serial-core v0.4.0
Dec 01 02:12:30.399 INFO [stderr]    Compiling uuid v0.5.1
Dec 01 02:12:31.431 INFO [stderr]    Compiling serial-unix v0.4.0
Dec 01 02:12:32.767 INFO [stderr]    Compiling serial v0.4.0
Dec 01 02:12:32.991 INFO [stderr]    Compiling channel v0.1.0 (/source)
Dec 01 02:12:33.251 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 01 02:12:33.251 INFO [stderr]  --> src/main.rs:1:1
Dec 01 02:12:33.251 INFO [stderr]   |
Dec 01 02:12:33.251 INFO [stderr] 1 | #![feature(int_to_from_bytes)]
Dec 01 02:12:33.251 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:12:33.251 INFO [stderr] 
Dec 01 02:12:33.251 INFO [stderr] error: aborting due to previous error
Dec 01 02:12:33.251 INFO [stderr] 
Dec 01 02:12:33.251 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 01 02:12:33.253 INFO [stderr] error: Could not compile `channel`.
Dec 01 02:12:33.253 INFO [stderr] 
Dec 01 02:12:33.253 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 02:12:33.256 INFO [stderr] su: No module specific data is present
Dec 01 02:12:34.083 INFO running `"docker" "inspect" "94f5eb13428f8409d98ceba8beaff7651a236ba35342b82fe4774c42a3c0fd6d"`
Dec 01 02:12:34.386 INFO running `"docker" "rm" "-f" "94f5eb13428f8409d98ceba8beaff7651a236ba35342b82fe4774c42a3c0fd6d"`
Dec 01 02:12:34.786 INFO [stdout] 94f5eb13428f8409d98ceba8beaff7651a236ba35342b82fe4774c42a3c0fd6d
