Nov 28 03:06:34.500 INFO documenting ThePerkinrex/PercOSv2 against try#f5a0bd723553ea4b7556bd7087b9f0919cafb483 for pr-55318
Nov 28 03:06:34.500 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-3/try#f5a0bd723553ea4b7556bd7087b9f0919cafb483:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55318/try#f5a0bd723553ea4b7556bd7087b9f0919cafb483:/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 +f5a0bd723553ea4b7556bd7087b9f0919cafb483-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"`
Nov 28 03:06:34.969 INFO [stdout] 79662d47dae3852cf9ea09c5ad17f0670abaecc45c2fcd13b6b4d3ce2202510a
Nov 28 03:06:34.969 INFO running `"docker" "start" "-a" "79662d47dae3852cf9ea09c5ad17f0670abaecc45c2fcd13b6b4d3ce2202510a"`
Nov 28 03:06:35.387 INFO [stderr] usermod: no changes
Nov 28 03:06:35.480 INFO [stderr]     Checking spin v0.4.9
Nov 28 03:06:35.480 INFO [stderr]     Checking volatile v0.2.4
Nov 28 03:06:35.691 INFO [stderr]  Documenting percos v2.0.0 (/source)
Nov 28 03:06:35.739 INFO [stderr] error[E0557]: feature has been removed
Nov 28 03:06:35.739 INFO [stderr]  --> src/lib.rs:3:12
Nov 28 03:06:35.739 INFO [stderr]   |
Nov 28 03:06:35.739 INFO [stderr] 3 | #![feature(panic_implementation)]
Nov 28 03:06:35.739 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^
Nov 28 03:06:35.739 INFO [stderr]   |
Nov 28 03:06:35.739 INFO [stderr] note: subsumed by `#[panic_handler]`
Nov 28 03:06:35.739 INFO [stderr]  --> src/lib.rs:3:12
Nov 28 03:06:35.739 INFO [stderr]   |
Nov 28 03:06:35.739 INFO [stderr] 3 | #![feature(panic_implementation)]
Nov 28 03:06:35.739 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^
Nov 28 03:06:35.739 INFO [stderr] 
Nov 28 03:06:35.909 INFO [stderr] error: Compilation failed, aborting rustdoc
Nov 28 03:06:35.909 INFO [stderr] 
Nov 28 03:06:35.917 INFO [stderr] error: Could not document `percos`.
Nov 28 03:06:35.917 INFO [stderr] 
Nov 28 03:06:35.917 INFO [stderr] Caused by:
Nov 28 03:06:35.917 INFO [stderr]   process didn't exit successfully: `rustdoc --crate-name percos src/lib.rs --color never -o /target/doc --document-private-items -L dependency=/target/debug/deps --extern cpuio=/target/debug/deps/libcpuio-38d34499f7da7886.rmeta --extern multiboot2=/target/debug/deps/libmultiboot2-efafa1e52f2234ba.rmeta --extern rlibc=/target/debug/deps/librlibc-fb96474425f2e674.rmeta --extern spin=/target/debug/deps/libspin-7ab53a0d61dea5b3.rmeta --extern volatile=/target/debug/deps/libvolatile-8aa52ad3fbaa0eec.rmeta --cap-lints=forbid` (exit code: 1)
Nov 28 03:06:35.920 INFO [stderr] su: No module specific data is present
Nov 28 03:06:36.559 INFO running `"docker" "inspect" "79662d47dae3852cf9ea09c5ad17f0670abaecc45c2fcd13b6b4d3ce2202510a"`
Nov 28 03:06:36.679 INFO running `"docker" "rm" "-f" "79662d47dae3852cf9ea09c5ad17f0670abaecc45c2fcd13b6b4d3ce2202510a"`
Nov 28 03:06:36.772 INFO [stdout] 79662d47dae3852cf9ea09c5ad17f0670abaecc45c2fcd13b6b4d3ce2202510a