Nov 28 23:00:34.729 INFO checking kg-diag-derive-0.1.0 against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 23:00:34.729 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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"`
Nov 28 23:00:35.258 INFO [stdout] 77c7343a0948a94f70cf4057767410bd0b55161cb0bd7f675ab80f298786633e
Nov 28 23:00:35.260 INFO running `"docker" "start" "-a" "77c7343a0948a94f70cf4057767410bd0b55161cb0bd7f675ab80f298786633e"`
Nov 28 23:00:36.580 INFO [stderr] usermod: no changes
Nov 28 23:00:36.749 INFO [stderr]    Compiling heapsize v0.4.2
Nov 28 23:00:36.749 INFO [stderr]    Compiling memchr v2.1.1
Nov 28 23:00:36.753 INFO [stderr]     Checking syn v0.15.22
Nov 28 23:00:38.125 INFO [stderr]    Compiling kg-utils v0.2.3
Nov 28 23:00:40.032 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 28 23:00:40.032 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-utils-0.2.3/src/collections/sparse_set.rs:231:11
Nov 28 23:00:40.032 INFO [stderr]     |
Nov 28 23:00:40.032 INFO [stderr] 231 |     match Layout::array::<T>(size) {
Nov 28 23:00:40.032 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^^
Nov 28 23:00:40.032 INFO [stderr]     |
Nov 28 23:00:40.032 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 28 23:00:40.032 INFO [stderr] 
Nov 28 23:00:40.192 INFO [stderr] error: aborting due to previous error
Nov 28 23:00:40.192 INFO [stderr] 
Nov 28 23:00:40.192 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 23:00:40.204 INFO [stderr] error: Could not compile `kg-utils`.
Nov 28 23:00:40.204 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 28 23:00:51.520 INFO [stderr] error: build failed
Nov 28 23:00:51.523 INFO [stderr] su: No module specific data is present
Nov 28 23:00:52.186 INFO running `"docker" "inspect" "77c7343a0948a94f70cf4057767410bd0b55161cb0bd7f675ab80f298786633e"`
Nov 28 23:00:52.406 INFO running `"docker" "rm" "-f" "77c7343a0948a94f70cf4057767410bd0b55161cb0bd7f675ab80f298786633e"`
Nov 28 23:00:52.633 INFO [stdout] 77c7343a0948a94f70cf4057767410bd0b55161cb0bd7f675ab80f298786633e