Dec 03 19:18:09.074 INFO testing aren_alloc-0.3.0 against 1.30.1 for beta-1.31-5
Dec 03 19:18:09.074 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 19:18:09.252 INFO [stdout] d10b7b65a4e9a3950345133545669d1e44f6fffcb038b9a5e33e98160fe8bdfb
Dec 03 19:18:09.257 INFO running `"docker" "start" "-a" "d10b7b65a4e9a3950345133545669d1e44f6fffcb038b9a5e33e98160fe8bdfb"`
Dec 03 19:18:09.895 INFO [stderr] usermod: no changes
Dec 03 19:18:09.929 INFO [stderr]    Compiling aren_alloc v0.3.0 (/source)
Dec 03 19:18:10.486 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 19:18:10.487 INFO [stderr]   --> src/lib.rs:31:1
Dec 03 19:18:10.487 INFO [stderr]    |
Dec 03 19:18:10.487 INFO [stderr] 31 | #![feature(coerce_unsized)]
Dec 03 19:18:10.487 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 19:18:10.487 INFO [stderr] 
Dec 03 19:18:10.487 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 19:18:10.487 INFO [stderr]   --> src/lib.rs:32:1
Dec 03 19:18:10.487 INFO [stderr]    |
Dec 03 19:18:10.487 INFO [stderr] 32 | #![feature(unsize)]
Dec 03 19:18:10.487 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 03 19:18:10.487 INFO [stderr] 
Dec 03 19:18:10.487 INFO [stderr] error: aborting due to 2 previous errors
Dec 03 19:18:10.487 INFO [stderr] 
Dec 03 19:18:10.487 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 19:18:10.495 INFO [stderr] error: Could not compile `aren_alloc`.
Dec 03 19:18:10.495 INFO [stderr] 
Dec 03 19:18:10.495 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 19:18:10.496 INFO [stderr] su: No module specific data is present
Dec 03 19:18:10.882 INFO running `"docker" "inspect" "d10b7b65a4e9a3950345133545669d1e44f6fffcb038b9a5e33e98160fe8bdfb"`
Dec 03 19:18:10.995 INFO running `"docker" "rm" "-f" "d10b7b65a4e9a3950345133545669d1e44f6fffcb038b9a5e33e98160fe8bdfb"`
Dec 03 19:18:11.211 INFO [stdout] d10b7b65a4e9a3950345133545669d1e44f6fffcb038b9a5e33e98160fe8bdfb