Nov 17 16:19:28.476 INFO testing Centril/rust_strong_rc against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 16:19:28.476 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 16:19:28.964 INFO [stdout] 63a9cc3807b6fd1d41f99c5e5c08b3944acb5b15f36689aa55c6ff49122cdfd3
Nov 17 16:19:28.969 INFO running `"docker" "start" "-a" "63a9cc3807b6fd1d41f99c5e5c08b3944acb5b15f36689aa55c6ff49122cdfd3"`
Nov 17 16:19:30.534 INFO [stderr] usermod: no changes
Nov 17 16:19:30.623 INFO [stderr]    Compiling strong_rc v0.1.4 (/source)
Nov 17 16:19:31.094 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 17 16:19:31.094 INFO [stderr]    --> src/lib.rs:284:46
Nov 17 16:19:31.094 INFO [stderr]     |
Nov 17 16:19:31.094 INFO [stderr] 284 |         let offset = (layout.size() + layout.padding_needed_for(align)) as isize;
Nov 17 16:19:31.094 INFO [stderr]     |                                              ^^^^^^^^^^^^^^^^^^
Nov 17 16:19:31.094 INFO [stderr]     |
Nov 17 16:19:31.094 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 17 16:19:31.094 INFO [stderr] 
Nov 17 16:19:31.139 INFO [stderr] error: aborting due to previous error
Nov 17 16:19:31.139 INFO [stderr] 
Nov 17 16:19:31.139 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 17 16:19:31.164 INFO [stderr] error: Could not compile `strong_rc`.
Nov 17 16:19:31.164 INFO [stderr] 
Nov 17 16:19:31.164 INFO [stderr] To learn more, run the command again with --verbose.
Nov 17 16:19:31.166 INFO [stderr] su: No module specific data is present
Nov 17 16:19:32.319 INFO running `"docker" "inspect" "63a9cc3807b6fd1d41f99c5e5c08b3944acb5b15f36689aa55c6ff49122cdfd3"`
Nov 17 16:19:32.658 INFO running `"docker" "rm" "-f" "63a9cc3807b6fd1d41f99c5e5c08b3944acb5b15f36689aa55c6ff49122cdfd3"`
Nov 17 16:19:32.882 INFO [stdout] 63a9cc3807b6fd1d41f99c5e5c08b3944acb5b15f36689aa55c6ff49122cdfd3