Dec 03 15:10:27.220 INFO testing cortex-a-2.2.2 against 1.30.1 for beta-1.31-5
Dec 03 15:10:27.220 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-5/1.30.1:/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 +1.30.1 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 15:10:27.592 INFO [stdout] f5a17b6d014c64f7f608f404345405ccd32457810c60d61466ca89b2e8a1fcd8
Dec 03 15:10:27.600 INFO running `"docker" "start" "-a" "f5a17b6d014c64f7f608f404345405ccd32457810c60d61466ca89b2e8a1fcd8"`
Dec 03 15:10:28.719 INFO [stderr] usermod: no changes
Dec 03 15:10:28.831 INFO [stderr]    Compiling tock-registers v0.2.0
Dec 03 15:10:28.987 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 15:10:28.987 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/tock-registers-0.2.0/src/lib.rs:5:1
Dec 03 15:10:28.987 INFO [stderr]   |
Dec 03 15:10:28.987 INFO [stderr] 5 | #![feature(const_fn)]
Dec 03 15:10:28.987 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 03 15:10:28.987 INFO [stderr] 
Dec 03 15:10:28.987 INFO [stderr] error: aborting due to previous error
Dec 03 15:10:28.987 INFO [stderr] 
Dec 03 15:10:28.987 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 15:10:28.988 INFO [stderr] error: Could not compile `tock-registers`.
Dec 03 15:10:28.988 INFO [stderr] 
Dec 03 15:10:28.988 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 15:10:28.989 INFO [stderr] su: No module specific data is present
Dec 03 15:10:29.679 INFO running `"docker" "inspect" "f5a17b6d014c64f7f608f404345405ccd32457810c60d61466ca89b2e8a1fcd8"`
Dec 03 15:10:29.875 INFO running `"docker" "rm" "-f" "f5a17b6d014c64f7f608f404345405ccd32457810c60d61466ca89b2e8a1fcd8"`
Dec 03 15:10:30.044 INFO [stdout] f5a17b6d014c64f7f608f404345405ccd32457810c60d61466ca89b2e8a1fcd8