Nov 28 23:00:01.437 INFO checking kg-tree-0.1.1 against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 23:00:01.437 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 23:00:01.852 INFO [stdout] 758d0c232d3c18d1b3bc916a68d64ae78d08ea8ea17613f6b33721a67cab24f3
Nov 28 23:00:01.860 INFO running `"docker" "start" "-a" "758d0c232d3c18d1b3bc916a68d64ae78d08ea8ea17613f6b33721a67cab24f3"`
Nov 28 23:00:03.320 INFO [stderr] usermod: no changes
Nov 28 23:00:03.487 INFO [stderr]    Compiling heapsize v0.4.2
Nov 28 23:00:03.492 INFO [stderr]     Checking kg-utils v0.2.3
Nov 28 23:00:03.492 INFO [stderr]    Compiling syn v0.15.22
Nov 28 23:00:03.492 INFO [stderr]    Compiling heapsize_derive v0.1.4
Nov 28 23:00:03.493 INFO [stderr]    Compiling kg-display v0.1.1
Nov 28 23:00:03.496 INFO [stderr]     Checking parking_lot_core v0.3.1
Nov 28 23:00:05.944 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 28 23:00:05.944 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-utils-0.2.3/src/collections/sparse_set.rs:231:11
Nov 28 23:00:05.944 INFO [stderr]     |
Nov 28 23:00:05.944 INFO [stderr] 231 |     match Layout::array::<T>(size) {
Nov 28 23:00:05.944 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^^
Nov 28 23:00:05.944 INFO [stderr]     |
Nov 28 23:00:05.944 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 28 23:00:05.944 INFO [stderr] 
Nov 28 23:00:06.384 INFO [stderr] error: aborting due to previous error
Nov 28 23:00:06.384 INFO [stderr] 
Nov 28 23:00:06.384 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 23:00:06.396 INFO [stderr] error: Could not compile `kg-utils`.
Nov 28 23:00:06.396 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 28 23:00:07.664 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 28 23:00:07.664 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-utils-0.2.3/src/collections/sparse_set.rs:231:11
Nov 28 23:00:07.664 INFO [stderr]     |
Nov 28 23:00:07.665 INFO [stderr] 231 |     match Layout::array::<T>(size) {
Nov 28 23:00:07.665 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^^
Nov 28 23:00:07.666 INFO [stderr]     |
Nov 28 23:00:07.666 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 28 23:00:07.666 INFO [stderr] 
Nov 28 23:00:08.229 INFO [stderr] error: aborting due to previous error
Nov 28 23:00:08.252 INFO [stderr] 
Nov 28 23:00:08.253 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 23:00:08.285 INFO [stderr] error: Could not compile `kg-utils`.
Nov 28 23:00:08.285 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 28 23:00:34.655 INFO [stderr] error: build failed
Nov 28 23:00:34.656 INFO [stderr] su: No module specific data is present
Nov 28 23:00:35.591 INFO running `"docker" "inspect" "758d0c232d3c18d1b3bc916a68d64ae78d08ea8ea17613f6b33721a67cab24f3"`
Nov 28 23:00:35.976 INFO running `"docker" "rm" "-f" "758d0c232d3c18d1b3bc916a68d64ae78d08ea8ea17613f6b33721a67cab24f3"`
Nov 28 23:00:36.320 INFO [stdout] 758d0c232d3c18d1b3bc916a68d64ae78d08ea8ea17613f6b33721a67cab24f3