Dec 05 11:20:11.128 INFO checking kg-symbol-0.1.8 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 11:20:11.128 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 11:20:11.523 INFO [stdout] 9291004ec31e38614b4dd659f2e2de90c3d14568f46cceb00e336a0f651a0839
Dec 05 11:20:11.525 INFO running `"docker" "start" "-a" "9291004ec31e38614b4dd659f2e2de90c3d14568f46cceb00e336a0f651a0839"`
Dec 05 11:20:13.152 INFO [stderr] usermod: no changes
Dec 05 11:20:13.284 INFO [stderr]     Checking lock_api v0.1.5
Dec 05 11:20:13.287 INFO [stderr]    Compiling parking_lot_core v0.3.1
Dec 05 11:20:16.262 INFO [stderr]     Checking parking_lot v0.6.4
Dec 05 11:20:17.765 INFO [stderr]     Checking kg-symbol v0.1.8 (/source)
Dec 05 11:20:19.386 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Dec 05 11:20:19.387 INFO [stderr]   --> src/lib.rs:50:33
Dec 05 11:20:19.387 INFO [stderr]    |
Dec 05 11:20:19.388 INFO [stderr] 50 |         Layout::new::<Header>().extend(Layout::from_size_align_unchecked(len, 1)).unwrap()
Dec 05 11:20:19.388 INFO [stderr]    |                                 ^^^^^^
Dec 05 11:20:19.388 INFO [stderr]    |
Dec 05 11:20:19.389 INFO [stderr]    = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Dec 05 11:20:19.389 INFO [stderr] 
Dec 05 11:20:19.423 INFO [stderr] error: aborting due to previous error
Dec 05 11:20:19.423 INFO [stderr] 
Dec 05 11:20:19.424 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 05 11:20:19.431 INFO [stderr] error: Could not compile `kg-symbol`.
Dec 05 11:20:19.431 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 05 11:20:19.458 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Dec 05 11:20:19.458 INFO [stderr]   --> src/lib.rs:50:33
Dec 05 11:20:19.458 INFO [stderr]    |
Dec 05 11:20:19.458 INFO [stderr] 50 |         Layout::new::<Header>().extend(Layout::from_size_align_unchecked(len, 1)).unwrap()
Dec 05 11:20:19.458 INFO [stderr]    |                                 ^^^^^^
Dec 05 11:20:19.458 INFO [stderr]    |
Dec 05 11:20:19.458 INFO [stderr]    = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Dec 05 11:20:19.458 INFO [stderr] 
Dec 05 11:20:19.511 INFO [stderr] error: aborting due to previous error
Dec 05 11:20:19.511 INFO [stderr] 
Dec 05 11:20:19.511 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 05 11:20:19.516 INFO [stderr] error: Could not compile `kg-symbol`.
Dec 05 11:20:19.516 INFO [stderr] 
Dec 05 11:20:19.517 INFO [stderr] To learn more, run the command again with --verbose.
Dec 05 11:20:19.517 INFO [stderr] su: No module specific data is present
Dec 05 11:20:20.207 INFO running `"docker" "inspect" "9291004ec31e38614b4dd659f2e2de90c3d14568f46cceb00e336a0f651a0839"`
Dec 05 11:20:20.365 INFO running `"docker" "rm" "-f" "9291004ec31e38614b4dd659f2e2de90c3d14568f46cceb00e336a0f651a0839"`
Dec 05 11:20:20.515 INFO [stdout] 9291004ec31e38614b4dd659f2e2de90c3d14568f46cceb00e336a0f651a0839