Dec 12 12:25:03.356 INFO checking kg-diag-0.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 12:25:03.356 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 12:25:03.760 INFO [stdout] c24993334c7f609f6c9b3b1561d43d7d1b23e41ba06f0c56748e4996cc8fa9d8
Dec 12 12:25:03.766 INFO running `"docker" "start" "-a" "c24993334c7f609f6c9b3b1561d43d7d1b23e41ba06f0c56748e4996cc8fa9d8"`
Dec 12 12:25:05.151 INFO [stderr] usermod: no changes
Dec 12 12:25:05.284 INFO [stderr]    Compiling heapsize v0.4.2
Dec 12 12:25:05.312 INFO [stderr]    Compiling synstructure v0.10.1
Dec 12 12:25:05.312 INFO [stderr]    Compiling kg-display v0.1.1
Dec 12 12:25:06.644 INFO [stderr]    Compiling kg-utils v0.2.3
Dec 12 12:25:08.584 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Dec 12 12:25:08.584 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-utils-0.2.3/src/collections/sparse_set.rs:231:11
Dec 12 12:25:08.584 INFO [stderr]     |
Dec 12 12:25:08.584 INFO [stderr] 231 |     match Layout::array::<T>(size) {
Dec 12 12:25:08.584 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^^
Dec 12 12:25:08.644 INFO [stderr]     |
Dec 12 12:25:08.644 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Dec 12 12:25:08.644 INFO [stderr] 
Dec 12 12:25:09.116 INFO [stderr] error: aborting due to previous error
Dec 12 12:25:09.120 INFO [stderr] 
Dec 12 12:25:09.120 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 12 12:25:09.140 INFO [stderr] error: Could not compile `kg-utils`.
Dec 12 12:25:09.140 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 12 12:25:11.165 INFO [stderr] error: build failed
Dec 12 12:25:11.166 INFO [stderr] su: No module specific data is present
Dec 12 12:25:11.571 INFO running `"docker" "inspect" "c24993334c7f609f6c9b3b1561d43d7d1b23e41ba06f0c56748e4996cc8fa9d8"`
Dec 12 12:25:11.758 INFO running `"docker" "rm" "-f" "c24993334c7f609f6c9b3b1561d43d7d1b23e41ba06f0c56748e4996cc8fa9d8"`
Dec 12 12:25:12.032 INFO [stdout] c24993334c7f609f6c9b3b1561d43d7d1b23e41ba06f0c56748e4996cc8fa9d8