Dec 01 01:57:59.839 INFO checking appendbuf-0.1.6 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Dec 01 01:57:59.839 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 01 01:58:00.253 INFO [stdout] e75eb360f98e438ae4fe24512c39c94fe157c19efd2dd8490be63d5261e9f187
Dec 01 01:58:00.256 INFO running `"docker" "start" "-a" "e75eb360f98e438ae4fe24512c39c94fe157c19efd2dd8490be63d5261e9f187"`
Dec 01 01:58:01.537 INFO [stderr] usermod: no changes
Dec 01 01:58:01.596 INFO [stderr]     Checking memalloc v0.1.0
Dec 01 01:58:02.300 INFO [stderr]     Checking appendbuf v0.1.6 (/source)
Dec 01 01:58:02.848 INFO [stderr] warning: attribute must be of the form: `#[should_panic]` or `#[should_panic(expected = "error message")]`
Dec 01 01:58:02.848 INFO [stderr]    --> src/lib.rs:401:1
Dec 01 01:58:02.848 INFO [stderr]     |
Dec 01 01:58:02.848 INFO [stderr] 401 | #[should_panic = "the desired offset"]
Dec 01 01:58:02.848 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 01:58:02.848 INFO [stderr]     |
Dec 01 01:58:02.848 INFO [stderr]     = note: Errors in this attribute were erroneously allowed and will become a hard error in a future release.
Dec 01 01:58:02.848 INFO [stderr] 
Dec 01 01:58:02.848 INFO [stderr] warning: attribute must be of the form: `#[should_panic]` or `#[should_panic(expected = "error message")]`
Dec 01 01:58:02.848 INFO [stderr]    --> src/lib.rs:412:1
Dec 01 01:58:02.848 INFO [stderr]     |
Dec 01 01:58:02.848 INFO [stderr] 412 | #[should_panic = "the desired length"]
Dec 01 01:58:02.848 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 01:58:02.848 INFO [stderr]     |
Dec 01 01:58:02.848 INFO [stderr]     = note: Errors in this attribute were erroneously allowed and will become a hard error in a future release.
Dec 01 01:58:02.848 INFO [stderr] 
Dec 01 01:58:03.076 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
Dec 01 01:58:03.085 INFO [stderr] su: No module specific data is present
Dec 01 01:58:03.410 INFO running `"docker" "inspect" "e75eb360f98e438ae4fe24512c39c94fe157c19efd2dd8490be63d5261e9f187"`
Dec 01 01:58:03.498 INFO running `"docker" "rm" "-f" "e75eb360f98e438ae4fe24512c39c94fe157c19efd2dd8490be63d5261e9f187"`
Dec 01 01:58:03.629 INFO [stdout] e75eb360f98e438ae4fe24512c39c94fe157c19efd2dd8490be63d5261e9f187