Nov 28 14:14:18.103 INFO checking Centril/rust_strong_rc against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 14:14:18.103 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 14:14:18.571 INFO [stdout] 916d98771f964e7010ba88c42ec860a1ff3557328412d18b2dac2d1f6c9f3b9b
Nov 28 14:14:18.573 INFO running `"docker" "start" "-a" "916d98771f964e7010ba88c42ec860a1ff3557328412d18b2dac2d1f6c9f3b9b"`
Nov 28 14:14:20.251 INFO [stderr] usermod: no changes
Nov 28 14:14:20.312 INFO [stderr]     Checking strong_rc v0.1.4 (/source)
Nov 28 14:14:21.104 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 28 14:14:21.105 INFO [stderr]    --> src/lib.rs:284:46
Nov 28 14:14:21.105 INFO [stderr]     |
Nov 28 14:14:21.106 INFO [stderr] 284 |         let offset = (layout.size() + layout.padding_needed_for(align)) as isize;
Nov 28 14:14:21.106 INFO [stderr]     |                                              ^^^^^^^^^^^^^^^^^^
Nov 28 14:14:21.106 INFO [stderr]     |
Nov 28 14:14:21.106 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 28 14:14:21.107 INFO [stderr] 
Nov 28 14:14:21.124 INFO [stderr] error[E0658]: use of unstable library feature 'alloc_layout_extra' (see issue #55724)
Nov 28 14:14:21.125 INFO [stderr]    --> src/lib.rs:284:46
Nov 28 14:14:21.125 INFO [stderr]     |
Nov 28 14:14:21.125 INFO [stderr] 284 |         let offset = (layout.size() + layout.padding_needed_for(align)) as isize;
Nov 28 14:14:21.126 INFO [stderr]     |                                              ^^^^^^^^^^^^^^^^^^
Nov 28 14:14:21.126 INFO [stderr]     |
Nov 28 14:14:21.126 INFO [stderr]     = help: add #![feature(alloc_layout_extra)] to the crate attributes to enable
Nov 28 14:14:21.127 INFO [stderr] 
Nov 28 14:14:21.163 INFO [stderr] error: aborting due to previous error
Nov 28 14:14:21.164 INFO [stderr] 
Nov 28 14:14:21.168 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 14:14:21.170 INFO [stderr] error: aborting due to previous error
Nov 28 14:14:21.171 INFO [stderr] 
Nov 28 14:14:21.171 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 14:14:21.174 INFO [stderr] error: Could not compile `strong_rc`.
Nov 28 14:14:21.175 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 28 14:14:21.177 INFO [stderr] error: Could not compile `strong_rc`.
Nov 28 14:14:21.177 INFO [stderr] 
Nov 28 14:14:21.177 INFO [stderr] To learn more, run the command again with --verbose.
Nov 28 14:14:21.179 INFO [stderr] su: No module specific data is present
Nov 28 14:14:21.854 INFO running `"docker" "inspect" "916d98771f964e7010ba88c42ec860a1ff3557328412d18b2dac2d1f6c9f3b9b"`
Nov 28 14:14:22.122 INFO running `"docker" "rm" "-f" "916d98771f964e7010ba88c42ec860a1ff3557328412d18b2dac2d1f6c9f3b9b"`
Nov 28 14:14:22.444 INFO [stdout] 916d98771f964e7010ba88c42ec860a1ff3557328412d18b2dac2d1f6c9f3b9b