Dec 12 11:35:54.779 INFO checking mcs-0.1.1 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 11:35:54.780 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 11:35:55.148 INFO [stdout] 1b86e8d48b0ab50f202782c05b5f54f1951b3864bb41b1805256b3fa243a97e5
Dec 12 11:35:55.150 INFO running `"docker" "start" "-a" "1b86e8d48b0ab50f202782c05b5f54f1951b3864bb41b1805256b3fa243a97e5"`
Dec 12 11:35:55.833 INFO [stderr] usermod: no changes
Dec 12 11:35:55.949 INFO [stderr]     Checking mcs v0.1.1 (/source)
Dec 12 11:35:56.056 INFO [stderr] warning: unnecessary `unsafe` block
Dec 12 11:35:56.056 INFO [stderr]    --> src/mutex.rs:117:9
Dec 12 11:35:56.056 INFO [stderr]     |
Dec 12 11:35:56.056 INFO [stderr] 117 |         unsafe {
Dec 12 11:35:56.056 INFO [stderr]     |         ^^^^^^ unnecessary `unsafe` block
Dec 12 11:35:56.056 INFO [stderr]     |
Dec 12 11:35:56.056 INFO [stderr]     = note: #[warn(unused_unsafe)] on by default
Dec 12 11:35:56.056 INFO [stderr] 
Dec 12 11:35:56.056 INFO [stderr] warning: the feature `generic_param_attrs` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 12 11:35:56.056 INFO [stderr]  --> src/lib.rs:1:58
Dec 12 11:35:56.056 INFO [stderr]   |
Dec 12 11:35:56.056 INFO [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))]
Dec 12 11:35:56.056 INFO [stderr]   |                                                          ^^^^^^^^^^^^^^^^^^^
Dec 12 11:35:56.056 INFO [stderr]   |
Dec 12 11:35:56.056 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 12 11:35:56.056 INFO [stderr] 
Dec 12 11:35:56.652 INFO [stderr] warning: unnecessary `unsafe` block
Dec 12 11:35:56.652 INFO [stderr]    --> src/mutex.rs:117:9
Dec 12 11:35:56.652 INFO [stderr]     |
Dec 12 11:35:56.652 INFO [stderr] 117 |         unsafe {
Dec 12 11:35:56.652 INFO [stderr]     |         ^^^^^^ unnecessary `unsafe` block
Dec 12 11:35:56.652 INFO [stderr]     |
Dec 12 11:35:56.652 INFO [stderr]     = note: #[warn(unused_unsafe)] on by default
Dec 12 11:35:56.652 INFO [stderr] 
Dec 12 11:35:56.653 INFO [stderr] warning: the feature `generic_param_attrs` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 12 11:35:56.653 INFO [stderr]  --> src/lib.rs:1:58
Dec 12 11:35:56.653 INFO [stderr]   |
Dec 12 11:35:56.653 INFO [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))]
Dec 12 11:35:56.653 INFO [stderr]   |                                                          ^^^^^^^^^^^^^^^^^^^
Dec 12 11:35:56.653 INFO [stderr]   |
Dec 12 11:35:56.653 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 12 11:35:56.653 INFO [stderr] 
Dec 12 11:35:56.710 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
Dec 12 11:35:56.710 INFO [stderr] su: No module specific data is present
Dec 12 11:35:57.262 INFO running `"docker" "inspect" "1b86e8d48b0ab50f202782c05b5f54f1951b3864bb41b1805256b3fa243a97e5"`
Dec 12 11:35:57.393 INFO running `"docker" "rm" "-f" "1b86e8d48b0ab50f202782c05b5f54f1951b3864bb41b1805256b3fa243a97e5"`
Dec 12 11:35:57.632 INFO [stdout] 1b86e8d48b0ab50f202782c05b5f54f1951b3864bb41b1805256b3fa243a97e5