Dec 12 18:05:07.018 INFO checking appendbuf-0.1.6 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 18:05:07.018 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 18:05:07.500 INFO [stdout] cb55d5305edfc0abbd2642963ceb70f84f4bb001ffdc2b4403d7cc56f935e4e2
Dec 12 18:05:07.506 INFO running `"docker" "start" "-a" "cb55d5305edfc0abbd2642963ceb70f84f4bb001ffdc2b4403d7cc56f935e4e2"`
Dec 12 18:05:08.704 INFO [stderr] usermod: no changes
Dec 12 18:05:08.763 INFO [stderr]     Checking appendbuf v0.1.6 (/source)
Dec 12 18:05:09.575 INFO [stderr] warning: attribute must be of the form: `#[should_panic]` or `#[should_panic(expected = "error message")]`
Dec 12 18:05:09.576 INFO [stderr]    --> src/lib.rs:401:1
Dec 12 18:05:09.576 INFO [stderr]     |
Dec 12 18:05:09.576 INFO [stderr] 401 | #[should_panic = "the desired offset"]
Dec 12 18:05:09.576 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 18:05:09.576 INFO [stderr]     |
Dec 12 18:05:09.576 INFO [stderr]     = note: Errors in this attribute were erroneously allowed and will become a hard error in a future release.
Dec 12 18:05:09.576 INFO [stderr] 
Dec 12 18:05:09.576 INFO [stderr] warning: attribute must be of the form: `#[should_panic]` or `#[should_panic(expected = "error message")]`
Dec 12 18:05:09.576 INFO [stderr]    --> src/lib.rs:412:1
Dec 12 18:05:09.576 INFO [stderr]     |
Dec 12 18:05:09.576 INFO [stderr] 412 | #[should_panic = "the desired length"]
Dec 12 18:05:09.576 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 18:05:09.576 INFO [stderr]     |
Dec 12 18:05:09.576 INFO [stderr]     = note: Errors in this attribute were erroneously allowed and will become a hard error in a future release.
Dec 12 18:05:09.576 INFO [stderr] 
Dec 12 18:05:09.886 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
Dec 12 18:05:09.896 INFO [stderr] su: No module specific data is present
Dec 12 18:05:10.604 INFO running `"docker" "inspect" "cb55d5305edfc0abbd2642963ceb70f84f4bb001ffdc2b4403d7cc56f935e4e2"`
Dec 12 18:05:10.976 INFO running `"docker" "rm" "-f" "cb55d5305edfc0abbd2642963ceb70f84f4bb001ffdc2b4403d7cc56f935e4e2"`
Dec 12 18:05:11.344 INFO [stdout] cb55d5305edfc0abbd2642963ceb70f84f4bb001ffdc2b4403d7cc56f935e4e2