Dec 05 10:34:32.991 INFO checking mcs-0.1.1 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 10:34:32.991 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 10:34:33.447 INFO [stdout] 2232c9cf0fc4cbdae7e73b5877e7bef2a68fdc17b470e3af9c0dc24c66af3a7a
Dec 05 10:34:33.447 INFO running `"docker" "start" "-a" "2232c9cf0fc4cbdae7e73b5877e7bef2a68fdc17b470e3af9c0dc24c66af3a7a"`
Dec 05 10:34:34.754 INFO [stderr] usermod: no changes
Dec 05 10:34:34.815 INFO [stderr]     Checking mcs v0.1.1 (/source)
Dec 05 10:34:35.075 INFO [stderr] warning: unnecessary `unsafe` block
Dec 05 10:34:35.075 INFO [stderr]    --> src/mutex.rs:117:9
Dec 05 10:34:35.075 INFO [stderr]     |
Dec 05 10:34:35.075 INFO [stderr] 117 |         unsafe {
Dec 05 10:34:35.075 INFO [stderr]     |         ^^^^^^ unnecessary `unsafe` block
Dec 05 10:34:35.075 INFO [stderr]     |
Dec 05 10:34:35.075 INFO [stderr]     = note: #[warn(unused_unsafe)] on by default
Dec 05 10:34:35.075 INFO [stderr] 
Dec 05 10:34:35.075 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 10:34:35.075 INFO [stderr]  --> src/lib.rs:1:58
Dec 05 10:34:35.075 INFO [stderr]   |
Dec 05 10:34:35.075 INFO [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))]
Dec 05 10:34:35.075 INFO [stderr]   |                                                          ^^^^^^^^^^^^^^^^^^^
Dec 05 10:34:35.075 INFO [stderr]   |
Dec 05 10:34:35.075 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 10:34:35.075 INFO [stderr] 
Dec 05 10:34:35.757 INFO [stderr] warning: unnecessary `unsafe` block
Dec 05 10:34:35.757 INFO [stderr]    --> src/mutex.rs:117:9
Dec 05 10:34:35.757 INFO [stderr]     |
Dec 05 10:34:35.757 INFO [stderr] 117 |         unsafe {
Dec 05 10:34:35.757 INFO [stderr]     |         ^^^^^^ unnecessary `unsafe` block
Dec 05 10:34:35.757 INFO [stderr]     |
Dec 05 10:34:35.758 INFO [stderr]     = note: #[warn(unused_unsafe)] on by default
Dec 05 10:34:35.758 INFO [stderr] 
Dec 05 10:34:35.758 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 10:34:35.758 INFO [stderr]  --> src/lib.rs:1:58
Dec 05 10:34:35.758 INFO [stderr]   |
Dec 05 10:34:35.758 INFO [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))]
Dec 05 10:34:35.758 INFO [stderr]   |                                                          ^^^^^^^^^^^^^^^^^^^
Dec 05 10:34:35.758 INFO [stderr]   |
Dec 05 10:34:35.758 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 10:34:35.758 INFO [stderr] 
Dec 05 10:34:35.784 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
Dec 05 10:34:35.789 INFO [stderr] su: No module specific data is present
Dec 05 10:34:36.464 INFO running `"docker" "inspect" "2232c9cf0fc4cbdae7e73b5877e7bef2a68fdc17b470e3af9c0dc24c66af3a7a"`
Dec 05 10:34:36.699 INFO running `"docker" "rm" "-f" "2232c9cf0fc4cbdae7e73b5877e7bef2a68fdc17b470e3af9c0dc24c66af3a7a"`
Dec 05 10:34:36.995 INFO [stdout] 2232c9cf0fc4cbdae7e73b5877e7bef2a68fdc17b470e3af9c0dc24c66af3a7a