Dec 18 14:39:41.028 INFO checking kg-template-0.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 14:39:41.028 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/kg-template/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:39:41.444 INFO [stdout] 44da8f759e642540b210c35ee195d1945f2e6ab76f8688bf0712600eefe03c48
Dec 18 14:39:41.446 INFO running `"docker" "start" "-a" "44da8f759e642540b210c35ee195d1945f2e6ab76f8688bf0712600eefe03c48"`
Dec 18 14:39:42.953 INFO [stderr]    Compiling heapsize v0.4.2
Dec 18 14:39:42.956 INFO [stderr]    Compiling memchr v2.1.2
Dec 18 14:39:42.958 INFO [stderr]     Checking kg-utils v0.2.3
Dec 18 14:39:42.974 INFO [stderr]    Compiling heapsize_derive v0.1.4
Dec 18 14:39:42.974 INFO [stderr]     Checking kg-display v0.1.1
Dec 18 14:39:42.975 INFO [stderr]     Checking kg-symbol v0.1.8
Dec 18 14:39:44.621 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Dec 18 14:39:44.621 INFO [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-symbol-0.1.8/src/lib.rs:50:33
Dec 18 14:39:44.621 INFO [stderr]    |
Dec 18 14:39:44.621 INFO [stderr] 50 |         Layout::new::<Header>().extend(Layout::from_size_align_unchecked(len, 1)).unwrap()
Dec 18 14:39:44.621 INFO [stderr]    |                                 ^^^^^^
Dec 18 14:39:44.621 INFO [stderr]    |
Dec 18 14:39:44.621 INFO [stderr]    = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Dec 18 14:39:44.621 INFO [stderr] 
Dec 18 14:39:44.684 INFO [stderr] error: aborting due to previous error
Dec 18 14:39:44.724 INFO [stderr] 
Dec 18 14:39:44.724 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 18 14:39:44.768 INFO [stderr] error: Could not compile `kg-symbol`.
Dec 18 14:39:44.768 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 14:39:45.239 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Dec 18 14:39:45.239 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-utils-0.2.3/src/collections/sparse_set.rs:231:11
Dec 18 14:39:45.239 INFO [stderr]     |
Dec 18 14:39:45.239 INFO [stderr] 231 |     match Layout::array::<T>(size) {
Dec 18 14:39:45.239 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^^
Dec 18 14:39:45.239 INFO [stderr]     |
Dec 18 14:39:45.239 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Dec 18 14:39:45.239 INFO [stderr] 
Dec 18 14:39:45.484 INFO [stderr] error: aborting due to previous error
Dec 18 14:39:45.484 INFO [stderr] 
Dec 18 14:39:45.484 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 18 14:39:45.501 INFO [stderr] error: Could not compile `kg-utils`.
Dec 18 14:39:45.501 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 14:39:46.956 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Dec 18 14:39:46.956 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-utils-0.2.3/src/collections/sparse_set.rs:231:11
Dec 18 14:39:46.956 INFO [stderr]     |
Dec 18 14:39:46.956 INFO [stderr] 231 |     match Layout::array::<T>(size) {
Dec 18 14:39:46.956 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^^
Dec 18 14:39:46.956 INFO [stderr]     |
Dec 18 14:39:46.956 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Dec 18 14:39:46.956 INFO [stderr] 
Dec 18 14:39:47.304 INFO [stderr] error: aborting due to previous error
Dec 18 14:39:47.304 INFO [stderr] 
Dec 18 14:39:47.304 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 18 14:39:47.308 INFO [stderr] error: Could not compile `kg-utils`.
Dec 18 14:39:47.308 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 14:39:47.640 INFO [stderr] error: build failed
Dec 18 14:39:48.270 INFO running `"docker" "inspect" "44da8f759e642540b210c35ee195d1945f2e6ab76f8688bf0712600eefe03c48"`
Dec 18 14:39:48.349 INFO running `"docker" "rm" "-f" "44da8f759e642540b210c35ee195d1945f2e6ab76f8688bf0712600eefe03c48"`
Dec 18 14:39:48.439 INFO [stdout] 44da8f759e642540b210c35ee195d1945f2e6ab76f8688bf0712600eefe03c48