Dec 03 18:59:16.268 INFO testing atmega32u4-hal-0.1.3 against 1.30.1 for beta-1.31-5
Dec 03 18:59:16.268 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 18:59:16.616 INFO [stdout] 2bf0d0da24cf6e5f12cde2ff0e7e69fb07619006fa3df4befe5b1402f23e2208
Dec 03 18:59:16.620 INFO running `"docker" "start" "-a" "2bf0d0da24cf6e5f12cde2ff0e7e69fb07619006fa3df4befe5b1402f23e2208"`
Dec 03 18:59:17.817 INFO [stderr] usermod: no changes
Dec 03 18:59:17.903 INFO [stderr]    Compiling semver-parser v0.7.0
Dec 03 18:59:17.907 INFO [stderr]    Compiling vcell v0.1.0
Dec 03 18:59:17.907 INFO [stderr]    Compiling nb v0.1.1
Dec 03 18:59:17.907 INFO [stderr]    Compiling void v1.0.2
Dec 03 18:59:18.328 INFO [stderr]    Compiling embedded-hal v0.2.2
Dec 03 18:59:20.351 INFO [stderr]    Compiling semver v0.9.0
Dec 03 18:59:21.939 INFO [stderr]    Compiling rustc_version v0.2.3
Dec 03 18:59:23.645 INFO [stderr]    Compiling bare-metal v0.2.4
Dec 03 18:59:25.427 INFO [stderr]    Compiling atmega32u4 v0.1.3
Dec 03 18:59:25.989 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 18:59:25.989 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/atmega32u4-0.1.3/src/lib.rs:3:1
Dec 03 18:59:25.989 INFO [stderr]   |
Dec 03 18:59:25.989 INFO [stderr] 3 | #![feature(asm, const_fn, try_from)]
Dec 03 18:59:25.989 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 18:59:25.989 INFO [stderr] 
Dec 03 18:59:26.033 INFO [stderr] error: aborting due to previous error
Dec 03 18:59:26.033 INFO [stderr] 
Dec 03 18:59:26.033 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 18:59:26.040 INFO [stderr] error: Could not compile `atmega32u4`.
Dec 03 18:59:26.040 INFO [stderr] 
Dec 03 18:59:26.040 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 18:59:26.042 INFO [stderr] su: No module specific data is present
Dec 03 18:59:26.711 INFO running `"docker" "inspect" "2bf0d0da24cf6e5f12cde2ff0e7e69fb07619006fa3df4befe5b1402f23e2208"`
Dec 03 18:59:26.964 INFO running `"docker" "rm" "-f" "2bf0d0da24cf6e5f12cde2ff0e7e69fb07619006fa3df4befe5b1402f23e2208"`
Dec 03 18:59:27.195 INFO [stdout] 2bf0d0da24cf6e5f12cde2ff0e7e69fb07619006fa3df4befe5b1402f23e2208