Nov 28 14:14:16.626 INFO checking Centril/rust_strong_rc against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 14:14:16.626 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 14:14:17.126 INFO [stdout] a9b75d761ebff5b864439da995314b61dc0d8c9ce7a19f3a33fe908f0a4acdb3
Nov 28 14:14:17.127 INFO running `"docker" "start" "-a" "a9b75d761ebff5b864439da995314b61dc0d8c9ce7a19f3a33fe908f0a4acdb3"`
Nov 28 14:14:18.644 INFO [stderr] usermod: no changes
Nov 28 14:14:18.705 INFO [stderr]     Checking strong_rc v0.1.4 (/source)
Nov 28 14:14:19.260 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 28 14:14:19.260 INFO [stderr]    --> src/lib.rs:284:46
Nov 28 14:14:19.260 INFO [stderr]     |
Nov 28 14:14:19.260 INFO [stderr] 284 |         let offset = (layout.size() + layout.padding_needed_for(align)) as isize;
Nov 28 14:14:19.260 INFO [stderr]     |                                              ^^^^^^^^^^^^^^^^^^
Nov 28 14:14:19.260 INFO [stderr]     |
Nov 28 14:14:19.260 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 28 14:14:19.260 INFO [stderr] 
Nov 28 14:14:19.348 INFO [stderr] error: aborting due to previous error
Nov 28 14:14:19.356 INFO [stderr] 
Nov 28 14:14:19.356 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 14:14:19.368 INFO [stderr] error: Could not compile `strong_rc`.
Nov 28 14:14:19.368 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 28 14:14:19.452 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 28 14:14:19.452 INFO [stderr]    --> src/lib.rs:284:46
Nov 28 14:14:19.453 INFO [stderr]     |
Nov 28 14:14:19.453 INFO [stderr] 284 |         let offset = (layout.size() + layout.padding_needed_for(align)) as isize;
Nov 28 14:14:19.453 INFO [stderr]     |                                              ^^^^^^^^^^^^^^^^^^
Nov 28 14:14:19.453 INFO [stderr]     |
Nov 28 14:14:19.453 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 28 14:14:19.453 INFO [stderr] 
Nov 28 14:14:19.488 INFO [stderr] error: aborting due to previous error
Nov 28 14:14:19.488 INFO [stderr] 
Nov 28 14:14:19.488 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 14:14:19.500 INFO [stderr] error: Could not compile `strong_rc`.
Nov 28 14:14:19.500 INFO [stderr] 
Nov 28 14:14:19.500 INFO [stderr] To learn more, run the command again with --verbose.
Nov 28 14:14:19.500 INFO [stderr] su: No module specific data is present
Nov 28 14:14:20.327 INFO running `"docker" "inspect" "a9b75d761ebff5b864439da995314b61dc0d8c9ce7a19f3a33fe908f0a4acdb3"`
Nov 28 14:14:20.629 INFO running `"docker" "rm" "-f" "a9b75d761ebff5b864439da995314b61dc0d8c9ce7a19f3a33fe908f0a4acdb3"`
Nov 28 14:14:20.886 INFO [stdout] a9b75d761ebff5b864439da995314b61dc0d8c9ce7a19f3a33fe908f0a4acdb3