Dec 02 12:53:22.329 INFO testing tty-0.5.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 12:53:22.329 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 12:53:22.755 INFO [stdout] 4d804b202ae89c24f3d0debc97a3509c79926849cfb916442d03077add8b13e8
Dec 02 12:53:22.757 INFO running `"docker" "start" "-a" "4d804b202ae89c24f3d0debc97a3509c79926849cfb916442d03077add8b13e8"`
Dec 02 12:53:25.226 INFO [stderr] usermod: no changes
Dec 02 12:53:25.367 INFO [stderr]    Compiling bit-set v0.2.0
Dec 02 12:53:25.367 INFO [stderr]    Compiling fd v0.2.3
Dec 02 12:53:25.367 INFO [stderr]    Compiling chan v0.1.23
Dec 02 12:53:29.709 INFO [stderr]    Compiling chan-signal v0.1.7
Dec 02 12:53:31.871 INFO [stderr]    Compiling tty v0.5.0 (/source)
Dec 02 12:53:32.803 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 12:53:32.803 INFO [stderr]   --> src/lib.rs:15:1
Dec 02 12:53:32.803 INFO [stderr]    |
Dec 02 12:53:32.803 INFO [stderr] 15 | #![feature(process_exec)]
Dec 02 12:53:32.803 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 12:53:32.803 INFO [stderr] 
Dec 02 12:53:32.807 INFO [stderr] error: aborting due to previous error
Dec 02 12:53:32.807 INFO [stderr] 
Dec 02 12:53:32.807 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 12:53:32.818 INFO [stderr] error: Could not compile `tty`.
Dec 02 12:53:32.818 INFO [stderr] 
Dec 02 12:53:32.818 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 12:53:32.823 INFO [stderr] su: No module specific data is present
Dec 02 12:53:34.259 INFO running `"docker" "inspect" "4d804b202ae89c24f3d0debc97a3509c79926849cfb916442d03077add8b13e8"`
Dec 02 12:53:34.613 INFO running `"docker" "rm" "-f" "4d804b202ae89c24f3d0debc97a3509c79926849cfb916442d03077add8b13e8"`
Dec 02 12:53:34.911 INFO [stdout] 4d804b202ae89c24f3d0debc97a3509c79926849cfb916442d03077add8b13e8