Nov 30 20:24:01.778 INFO checking kg-tree-0.1.1 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 20:24:01.779 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-5/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 20:24:02.276 INFO [stdout] 1701ecf7dab81e504bbbe69e62cbeabbdda87bd36247938c0ca6847076ab9b7c
Nov 30 20:24:02.276 INFO running `"docker" "start" "-a" "1701ecf7dab81e504bbbe69e62cbeabbdda87bd36247938c0ca6847076ab9b7c"`
Nov 30 20:24:03.240 INFO [stderr] usermod: no changes
Nov 30 20:24:03.395 INFO [stderr]    Compiling heapsize v0.4.2
Nov 30 20:24:03.395 INFO [stderr]     Checking kg-utils v0.2.3
Nov 30 20:24:03.395 INFO [stderr]    Compiling synstructure v0.5.2
Nov 30 20:24:03.396 INFO [stderr]    Compiling syn v0.15.22
Nov 30 20:24:03.396 INFO [stderr]    Compiling kg-display v0.1.1
Nov 30 20:24:03.396 INFO [stderr]     Checking parking_lot_core v0.3.1
Nov 30 20:24:05.080 INFO [stderr]     Checking parking_lot v0.6.4
Nov 30 20:24:06.417 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 30 20:24:06.417 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-utils-0.2.3/src/collections/sparse_set.rs:231:11
Nov 30 20:24:06.417 INFO [stderr]     |
Nov 30 20:24:06.417 INFO [stderr] 231 |     match Layout::array::<T>(size) {
Nov 30 20:24:06.417 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^^
Nov 30 20:24:06.428 INFO [stderr]     |
Nov 30 20:24:06.428 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 30 20:24:06.429 INFO [stderr] 
Nov 30 20:24:06.758 INFO [stderr]    Compiling heapsize_derive v0.1.4
Nov 30 20:24:07.284 INFO [stderr] error: aborting due to previous error
Nov 30 20:24:07.296 INFO [stderr] 
Nov 30 20:24:07.296 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 30 20:24:07.334 INFO [stderr] error: Could not compile `kg-utils`.
Nov 30 20:24:07.334 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 30 20:24:08.904 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 30 20:24:08.905 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-utils-0.2.3/src/collections/sparse_set.rs:231:11
Nov 30 20:24:08.905 INFO [stderr]     |
Nov 30 20:24:08.905 INFO [stderr] 231 |     match Layout::array::<T>(size) {
Nov 30 20:24:08.906 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^^
Nov 30 20:24:08.906 INFO [stderr]     |
Nov 30 20:24:08.906 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 30 20:24:08.906 INFO [stderr] 
Nov 30 20:24:09.468 INFO [stderr] error: aborting due to previous error
Nov 30 20:24:09.469 INFO [stderr] 
Nov 30 20:24:09.469 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 30 20:24:09.480 INFO [stderr] error: Could not compile `kg-utils`.
Nov 30 20:24:09.481 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 30 20:24:36.555 INFO [stderr] error: build failed
Nov 30 20:24:36.555 INFO [stderr] su: No module specific data is present
Nov 30 20:24:37.383 INFO running `"docker" "inspect" "1701ecf7dab81e504bbbe69e62cbeabbdda87bd36247938c0ca6847076ab9b7c"`
Nov 30 20:24:37.693 INFO running `"docker" "rm" "-f" "1701ecf7dab81e504bbbe69e62cbeabbdda87bd36247938c0ca6847076ab9b7c"`
Nov 30 20:24:37.912 INFO [stdout] 1701ecf7dab81e504bbbe69e62cbeabbdda87bd36247938c0ca6847076ab9b7c