Dec 01 06:09:08.463 INFO documenting svalat/hpc_allocator_rust against master#147e60c5f89cfa2d3ffc247413956a37582c98e7 for pr-55318-1
Dec 01 06:09:08.463 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318-1/worker-1/master#147e60c5f89cfa2d3ffc247413956a37582c98e7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55318-1/master#147e60c5f89cfa2d3ffc247413956a37582c98e7:/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 +147e60c5f89cfa2d3ffc247413956a37582c98e7-alt doc --frozen --no-deps --document-private-items" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 06:09:08.912 INFO [stdout] 846f8b5bd5dbffe56fd5accf4e76c8b2e75755446ebfde508493f76ef7fc4d6b
Dec 01 06:09:08.914 INFO running `"docker" "start" "-a" "846f8b5bd5dbffe56fd5accf4e76c8b2e75755446ebfde508493f76ef7fc4d6b"`
Dec 01 06:09:10.165 INFO [stderr] usermod: no changes
Dec 01 06:09:10.204 INFO [stderr] warning: unused manifest key: package.panic
Dec 01 06:09:10.212 INFO [stderr]     Checking libc v0.2.41
Dec 01 06:09:11.312 INFO [stderr]  Documenting mpc_allocator_rust v0.1.0 (/source)
Dec 01 06:09:11.420 INFO [stderr] error[E0557]: feature has been removed
Dec 01 06:09:11.420 INFO [stderr]   --> src/lib.rs:11:12
Dec 01 06:09:11.420 INFO [stderr]    |
Dec 01 06:09:11.420 INFO [stderr] 11 | #![feature(panic_implementation)]
Dec 01 06:09:11.420 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
Dec 01 06:09:11.420 INFO [stderr]    |
Dec 01 06:09:11.420 INFO [stderr] note: subsumed by `#[panic_handler]`
Dec 01 06:09:11.420 INFO [stderr]   --> src/lib.rs:11:12
Dec 01 06:09:11.420 INFO [stderr]    |
Dec 01 06:09:11.420 INFO [stderr] 11 | #![feature(panic_implementation)]
Dec 01 06:09:11.420 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
Dec 01 06:09:11.420 INFO [stderr] 
Dec 01 06:09:11.484 INFO [stderr] error[E0658]: The attribute `panic_implementation` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Dec 01 06:09:11.484 INFO [stderr]   --> src/export.rs:52:3
Dec 01 06:09:11.484 INFO [stderr]    |
Dec 01 06:09:11.484 INFO [stderr] 52 | #[panic_implementation]
Dec 01 06:09:11.484 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
Dec 01 06:09:11.484 INFO [stderr]    |
Dec 01 06:09:11.484 INFO [stderr]    = help: add #![feature(custom_attribute)] to the crate attributes to enable
Dec 01 06:09:11.484 INFO [stderr] 
Dec 01 06:09:11.495 INFO [stderr] error: Could not document `mpc_allocator_rust`.
Dec 01 06:09:11.495 INFO [stderr] 
Dec 01 06:09:11.495 INFO [stderr] Caused by:
Dec 01 06:09:11.495 INFO [stderr]   process didn't exit successfully: `rustdoc --crate-name hpc_allocator_rust src/lib.rs --color never -o /target/doc --document-private-items -L dependency=/target/debug/deps --extern libc=/target/debug/deps/liblibc-a99963606a97c330.rmeta --cap-lints=forbid` (exit code: 1)
Dec 01 06:09:11.504 INFO [stderr] su: No module specific data is present
Dec 01 06:09:12.046 INFO running `"docker" "inspect" "846f8b5bd5dbffe56fd5accf4e76c8b2e75755446ebfde508493f76ef7fc4d6b"`
Dec 01 06:09:12.340 INFO running `"docker" "rm" "-f" "846f8b5bd5dbffe56fd5accf4e76c8b2e75755446ebfde508493f76ef7fc4d6b"`
Dec 01 06:09:12.760 INFO [stdout] 846f8b5bd5dbffe56fd5accf4e76c8b2e75755446ebfde508493f76ef7fc4d6b