Nov 30 11:43:34.405 INFO checking Centril/rust_strong_rc against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 11:43:34.406 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 11:43:34.780 INFO [stdout] fb2ce4288afe1e06600c7a50d8e26db61c12a36968579c9648d34f2d87fcf176
Nov 30 11:43:34.782 INFO running `"docker" "start" "-a" "fb2ce4288afe1e06600c7a50d8e26db61c12a36968579c9648d34f2d87fcf176"`
Nov 30 11:43:36.386 INFO [stderr] usermod: no changes
Nov 30 11:43:36.503 INFO [stderr]     Checking strong_rc v0.1.4 (/source)
Nov 30 11:43:37.229 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 30 11:43:37.229 INFO [stderr]    --> src/lib.rs:284:46
Nov 30 11:43:37.229 INFO [stderr]     |
Nov 30 11:43:37.229 INFO [stderr] 284 |         let offset = (layout.size() + layout.padding_needed_for(align)) as isize;
Nov 30 11:43:37.229 INFO [stderr]     |                                              ^^^^^^^^^^^^^^^^^^
Nov 30 11:43:37.229 INFO [stderr]     |
Nov 30 11:43:37.229 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 30 11:43:37.229 INFO [stderr] 
Nov 30 11:43:37.302 INFO [stderr] error: aborting due to previous error
Nov 30 11:43:37.302 INFO [stderr] 
Nov 30 11:43:37.302 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 30 11:43:37.317 INFO [stderr] error: Could not compile `strong_rc`.
Nov 30 11:43:37.317 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 30 11:43:37.454 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 30 11:43:37.454 INFO [stderr]    --> src/lib.rs:284:46
Nov 30 11:43:37.454 INFO [stderr]     |
Nov 30 11:43:37.455 INFO [stderr] 284 |         let offset = (layout.size() + layout.padding_needed_for(align)) as isize;
Nov 30 11:43:37.455 INFO [stderr]     |                                              ^^^^^^^^^^^^^^^^^^
Nov 30 11:43:37.455 INFO [stderr]     |
Nov 30 11:43:37.456 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 30 11:43:37.456 INFO [stderr] 
Nov 30 11:43:37.525 INFO [stderr] error: aborting due to previous error
Nov 30 11:43:37.525 INFO [stderr] 
Nov 30 11:43:37.525 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 30 11:43:37.539 INFO [stderr] error: Could not compile `strong_rc`.
Nov 30 11:43:37.539 INFO [stderr] 
Nov 30 11:43:37.539 INFO [stderr] To learn more, run the command again with --verbose.
Nov 30 11:43:37.541 INFO [stderr] su: No module specific data is present
Nov 30 11:43:38.876 INFO running `"docker" "inspect" "fb2ce4288afe1e06600c7a50d8e26db61c12a36968579c9648d34f2d87fcf176"`
Nov 30 11:43:39.182 INFO running `"docker" "rm" "-f" "fb2ce4288afe1e06600c7a50d8e26db61c12a36968579c9648d34f2d87fcf176"`
Nov 30 11:43:39.432 INFO [stdout] fb2ce4288afe1e06600c7a50d8e26db61c12a36968579c9648d34f2d87fcf176