Dec 05 10:34:32.606 INFO checking mcs-0.1.1 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 10:34:32.606 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 05 10:34:33.124 INFO [stdout] 39a8af9784b7f1354ccc3b95c1ad934d7f53ba458cb90acdc81a216138562260
Dec 05 10:34:33.133 INFO running `"docker" "start" "-a" "39a8af9784b7f1354ccc3b95c1ad934d7f53ba458cb90acdc81a216138562260"`
Dec 05 10:34:34.543 INFO [stderr] usermod: no changes
Dec 05 10:34:34.627 INFO [stderr]     Checking mcs v0.1.1 (/source)
Dec 05 10:34:34.903 INFO [stderr] warning: unnecessary `unsafe` block
Dec 05 10:34:34.903 INFO [stderr]    --> src/mutex.rs:117:9
Dec 05 10:34:34.903 INFO [stderr]     |
Dec 05 10:34:34.903 INFO [stderr] 117 |         unsafe {
Dec 05 10:34:34.903 INFO [stderr]     |         ^^^^^^ unnecessary `unsafe` block
Dec 05 10:34:34.903 INFO [stderr]     |
Dec 05 10:34:34.903 INFO [stderr]     = note: #[warn(unused_unsafe)] on by default
Dec 05 10:34:34.903 INFO [stderr] 
Dec 05 10:34:34.903 INFO [stderr] warning: the feature `generic_param_attrs` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 05 10:34:34.903 INFO [stderr]  --> src/lib.rs:1:58
Dec 05 10:34:34.903 INFO [stderr]   |
Dec 05 10:34:34.903 INFO [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))]
Dec 05 10:34:34.903 INFO [stderr]   |                                                          ^^^^^^^^^^^^^^^^^^^
Dec 05 10:34:34.903 INFO [stderr]   |
Dec 05 10:34:34.903 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 10:34:34.903 INFO [stderr] 
Dec 05 10:34:35.547 INFO [stderr] warning: unnecessary `unsafe` block
Dec 05 10:34:35.547 INFO [stderr]    --> src/mutex.rs:117:9
Dec 05 10:34:35.547 INFO [stderr]     |
Dec 05 10:34:35.547 INFO [stderr] 117 |         unsafe {
Dec 05 10:34:35.547 INFO [stderr]     |         ^^^^^^ unnecessary `unsafe` block
Dec 05 10:34:35.547 INFO [stderr]     |
Dec 05 10:34:35.547 INFO [stderr]     = note: #[warn(unused_unsafe)] on by default
Dec 05 10:34:35.547 INFO [stderr] 
Dec 05 10:34:35.547 INFO [stderr] warning: the feature `generic_param_attrs` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 05 10:34:35.547 INFO [stderr]  --> src/lib.rs:1:58
Dec 05 10:34:35.547 INFO [stderr]   |
Dec 05 10:34:35.547 INFO [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))]
Dec 05 10:34:35.547 INFO [stderr]   |                                                          ^^^^^^^^^^^^^^^^^^^
Dec 05 10:34:35.547 INFO [stderr]   |
Dec 05 10:34:35.547 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 10:34:35.547 INFO [stderr] 
Dec 05 10:34:35.568 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
Dec 05 10:34:35.570 INFO [stderr] su: No module specific data is present
Dec 05 10:34:36.233 INFO running `"docker" "inspect" "39a8af9784b7f1354ccc3b95c1ad934d7f53ba458cb90acdc81a216138562260"`
Dec 05 10:34:36.504 INFO running `"docker" "rm" "-f" "39a8af9784b7f1354ccc3b95c1ad934d7f53ba458cb90acdc81a216138562260"`
Dec 05 10:34:36.782 INFO [stdout] 39a8af9784b7f1354ccc3b95c1ad934d7f53ba458cb90acdc81a216138562260