Nov 28 23:00:00.332 INFO checking kg-tree-0.1.1 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 23:00:00.332 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 23:00:00.612 INFO [stdout] d68392ff90ec2ad672d32b9c97c9f536d32f27fd631232feb32cfbf7897ef2b5
Nov 28 23:00:00.618 INFO running `"docker" "start" "-a" "d68392ff90ec2ad672d32b9c97c9f536d32f27fd631232feb32cfbf7897ef2b5"`
Nov 28 23:00:01.607 INFO [stderr] usermod: no changes
Nov 28 23:00:01.828 INFO [stderr]     Checking assert_approx_eq v1.0.0
Nov 28 23:00:01.828 INFO [stderr]    Compiling heapsize v0.4.2
Nov 28 23:00:01.840 INFO [stderr]     Checking kg-utils v0.2.3
Nov 28 23:00:01.844 INFO [stderr]    Compiling synstructure v0.5.2
Nov 28 23:00:01.845 INFO [stderr]    Compiling syn v0.15.22
Nov 28 23:00:01.845 INFO [stderr]    Compiling kg-display v0.1.1
Nov 28 23:00:01.845 INFO [stderr]     Checking parking_lot_core v0.3.1
Nov 28 23:00:05.196 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 28 23:00:05.197 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-utils-0.2.3/src/collections/sparse_set.rs:231:11
Nov 28 23:00:05.197 INFO [stderr]     |
Nov 28 23:00:05.197 INFO [stderr] 231 |     match Layout::array::<T>(size) {
Nov 28 23:00:05.198 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^^
Nov 28 23:00:05.221 INFO [stderr]     |
Nov 28 23:00:05.222 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 28 23:00:05.224 INFO [stderr] 
Nov 28 23:00:05.484 INFO [stderr]    Compiling heapsize_derive v0.1.4
Nov 28 23:00:05.792 INFO [stderr]     Checking parking_lot v0.6.4
Nov 28 23:00:05.840 INFO [stderr] error: aborting due to previous error
Nov 28 23:00:05.840 INFO [stderr] 
Nov 28 23:00:05.840 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 23:00:05.863 INFO [stderr] error: Could not compile `kg-utils`.
Nov 28 23:00:05.863 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 28 23:00:08.260 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 28 23:00:08.260 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-utils-0.2.3/src/collections/sparse_set.rs:231:11
Nov 28 23:00:08.260 INFO [stderr]     |
Nov 28 23:00:08.260 INFO [stderr] 231 |     match Layout::array::<T>(size) {
Nov 28 23:00:08.260 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^^
Nov 28 23:00:08.260 INFO [stderr]     |
Nov 28 23:00:08.261 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 28 23:00:08.261 INFO [stderr] 
Nov 28 23:00:08.692 INFO [stderr] error: aborting due to previous error
Nov 28 23:00:08.692 INFO [stderr] 
Nov 28 23:00:08.693 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 23:00:08.716 INFO [stderr] error: Could not compile `kg-utils`.
Nov 28 23:00:08.716 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 28 23:00:32.536 INFO [stderr] error: build failed
Nov 28 23:00:32.539 INFO [stderr] su: No module specific data is present
Nov 28 23:00:33.875 INFO running `"docker" "inspect" "d68392ff90ec2ad672d32b9c97c9f536d32f27fd631232feb32cfbf7897ef2b5"`
Nov 28 23:00:34.243 INFO running `"docker" "rm" "-f" "d68392ff90ec2ad672d32b9c97c9f536d32f27fd631232feb32cfbf7897ef2b5"`
Nov 28 23:00:34.657 INFO [stdout] d68392ff90ec2ad672d32b9c97c9f536d32f27fd631232feb32cfbf7897ef2b5