Dec 07 09:14:56.427 INFO testing kg-tree-0.1.1 against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 07 09:14:56.427 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt build --frozen" "-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 07 09:14:56.879 INFO [stdout] 8d0edc260916c033fd08ccbe4ccd09eed484dc16d2c662c51f5cfc2fd7502300
Dec 07 09:14:56.886 INFO running `"docker" "start" "-a" "8d0edc260916c033fd08ccbe4ccd09eed484dc16d2c662c51f5cfc2fd7502300"`
Dec 07 09:14:57.976 INFO [stderr] usermod: no changes
Dec 07 09:14:58.232 INFO [stderr]    Compiling kg-utils v0.2.3
Dec 07 09:14:58.233 INFO [stderr]    Compiling syn v0.15.22
Dec 07 09:14:58.233 INFO [stderr]    Compiling heapsize_derive v0.1.4
Dec 07 09:14:58.233 INFO [stderr]    Compiling kg-display v0.1.1
Dec 07 09:14:58.233 INFO [stderr]    Compiling parking_lot_core v0.3.1
Dec 07 09:15:00.692 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Dec 07 09:15:00.692 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/kg-utils-0.2.3/src/collections/sparse_set.rs:231:11
Dec 07 09:15:00.692 INFO [stderr]     |
Dec 07 09:15:00.692 INFO [stderr] 231 |     match Layout::array::<T>(size) {
Dec 07 09:15:00.692 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^^
Dec 07 09:15:00.692 INFO [stderr]     |
Dec 07 09:15:00.692 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Dec 07 09:15:00.692 INFO [stderr] 
Dec 07 09:15:01.420 INFO [stderr] error: aborting due to previous error
Dec 07 09:15:01.421 INFO [stderr] 
Dec 07 09:15:01.421 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 07 09:15:01.445 INFO [stderr] error: Could not compile `kg-utils`.
Dec 07 09:15:01.445 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 07 09:15:23.225 INFO [stderr] error: build failed
Dec 07 09:15:23.227 INFO [stderr] su: No module specific data is present
Dec 07 09:15:24.768 INFO running `"docker" "inspect" "8d0edc260916c033fd08ccbe4ccd09eed484dc16d2c662c51f5cfc2fd7502300"`
Dec 07 09:15:25.032 INFO running `"docker" "rm" "-f" "8d0edc260916c033fd08ccbe4ccd09eed484dc16d2c662c51f5cfc2fd7502300"`
Dec 07 09:15:25.278 INFO [stdout] 8d0edc260916c033fd08ccbe4ccd09eed484dc16d2c662c51f5cfc2fd7502300