Dec 05 11:20:38.661 INFO checking kg-diag-derive-0.1.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 11:20:38.661 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 11:20:39.233 INFO [stdout] bf4c34f67d4a680661a983b1c34b0dcdcd87d337c5a0ace957e3651fe7fc5e3b
Dec 05 11:20:39.239 INFO running `"docker" "start" "-a" "bf4c34f67d4a680661a983b1c34b0dcdcd87d337c5a0ace957e3651fe7fc5e3b"`
Dec 05 11:20:40.784 INFO [stderr] usermod: no changes
Dec 05 11:20:40.863 INFO [stderr]     Checking proc-macro2 v0.4.24
Dec 05 11:20:40.865 INFO [stderr]    Compiling kg-utils v0.2.3
Dec 05 11:20:40.865 INFO [stderr]    Compiling synstructure v0.10.1
Dec 05 11:20:41.899 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Dec 05 11:20:41.899 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-utils-0.2.3/src/collections/sparse_set.rs:231:11
Dec 05 11:20:41.899 INFO [stderr]     |
Dec 05 11:20:41.899 INFO [stderr] 231 |     match Layout::array::<T>(size) {
Dec 05 11:20:41.899 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^^
Dec 05 11:20:41.899 INFO [stderr]     |
Dec 05 11:20:41.899 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Dec 05 11:20:41.899 INFO [stderr] 
Dec 05 11:20:42.023 INFO [stderr] error: aborting due to previous error
Dec 05 11:20:42.023 INFO [stderr] 
Dec 05 11:20:42.023 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 05 11:20:42.025 INFO [stderr] error: Could not compile `kg-utils`.
Dec 05 11:20:42.025 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 05 11:20:47.866 INFO [stderr] error: build failed
Dec 05 11:20:47.879 INFO [stderr] su: No module specific data is present
Dec 05 11:20:49.465 INFO running `"docker" "inspect" "bf4c34f67d4a680661a983b1c34b0dcdcd87d337c5a0ace957e3651fe7fc5e3b"`
Dec 05 11:20:49.856 INFO running `"docker" "rm" "-f" "bf4c34f67d4a680661a983b1c34b0dcdcd87d337c5a0ace957e3651fe7fc5e3b"`
Dec 05 11:20:50.219 INFO [stdout] bf4c34f67d4a680661a983b1c34b0dcdcd87d337c5a0ace957e3651fe7fc5e3b