Dec 02 21:37:27.691 INFO testing puzzle-0.1.0 against 1.30.1 for beta-1.31-5
Dec 02 21:37:27.691 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 02 21:37:28.261 INFO [stdout] 03b9afb3b65a168a4a25c7feeef2e174742c711247d6c0d356b57f7b52180044
Dec 02 21:37:28.264 INFO running `"docker" "start" "-a" "03b9afb3b65a168a4a25c7feeef2e174742c711247d6c0d356b57f7b52180044"`
Dec 02 21:37:29.383 INFO [stderr] usermod: no changes
Dec 02 21:37:29.495 INFO [stderr]    Compiling puzzle v0.1.0 (/source)
Dec 02 21:37:31.919 INFO [stderr] error[E0432]: unresolved import `std::mem::MaybeUninit`
Dec 02 21:37:31.919 INFO [stderr]  --> src/lib.rs:7:5
Dec 02 21:37:31.919 INFO [stderr]   |
Dec 02 21:37:31.919 INFO [stderr] 7 | use std::mem::MaybeUninit;
Dec 02 21:37:31.919 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^ no `MaybeUninit` in `mem`
Dec 02 21:37:31.919 INFO [stderr] 
Dec 02 21:37:31.919 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 21:37:31.919 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 21:37:31.919 INFO [stderr]   |
Dec 02 21:37:31.919 INFO [stderr] 1 | #![feature(maybe_uninit)]
Dec 02 21:37:31.919 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 21:37:31.919 INFO [stderr] 
Dec 02 21:37:31.919 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 21:37:31.919 INFO [stderr] 
Dec 02 21:37:31.919 INFO [stderr] Some errors occurred: E0432, E0554.
Dec 02 21:37:31.919 INFO [stderr] For more information about an error, try `rustc --explain E0432`.
Dec 02 21:37:31.919 INFO [stderr] error: Could not compile `puzzle`.
Dec 02 21:37:31.919 INFO [stderr] 
Dec 02 21:37:31.919 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 21:37:31.923 INFO [stderr] su: No module specific data is present
Dec 02 21:37:32.469 INFO running `"docker" "inspect" "03b9afb3b65a168a4a25c7feeef2e174742c711247d6c0d356b57f7b52180044"`
Dec 02 21:37:32.683 INFO running `"docker" "rm" "-f" "03b9afb3b65a168a4a25c7feeef2e174742c711247d6c0d356b57f7b52180044"`
Dec 02 21:37:32.998 INFO [stdout] 03b9afb3b65a168a4a25c7feeef2e174742c711247d6c0d356b57f7b52180044
