Nov 28 06:07:36.935 INFO documenting ColbyCypherSociety/ChatDemo against try#f5a0bd723553ea4b7556bd7087b9f0919cafb483 for pr-55318
Nov 28 06:07:36.937 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-4/try#f5a0bd723553ea4b7556bd7087b9f0919cafb483:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 06:07:37.403 INFO [stdout] 84f64f04cec6b5c24b88a5dc3e6c55e5387c5f187cacbfd4a71a9937fad4a58c
Nov 28 06:07:37.405 INFO running `"docker" "start" "-a" "84f64f04cec6b5c24b88a5dc3e6c55e5387c5f187cacbfd4a71a9937fad4a58c"`
Nov 28 06:07:38.395 INFO [stderr] usermod: no changes
Nov 28 06:07:38.612 INFO [stderr]    Compiling proc-macro2 v0.4.13
Nov 28 06:07:38.613 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.17
Nov 28 06:07:38.615 INFO [stderr]    Compiling num-bigint v0.2.0
Nov 28 06:07:43.655 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 28 06:07:43.655 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Nov 28 06:07:43.655 INFO [stderr]     |
Nov 28 06:07:43.655 INFO [stderr] 359 |             Span::Nightly(proc_macro::Span::def_site())
Nov 28 06:07:43.655 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 06:07:43.655 INFO [stderr]     |
Nov 28 06:07:43.655 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 28 06:07:43.655 INFO [stderr] 
Nov 28 06:07:43.679 INFO [stderr] error: aborting due to previous error
Nov 28 06:07:43.679 INFO [stderr] 
Nov 28 06:07:43.679 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 06:07:43.689 INFO [stderr] error: Could not compile `proc-macro2`.
Nov 28 06:07:43.689 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 28 06:07:44.057 INFO [stderr] error: build failed
Nov 28 06:07:44.058 INFO [stderr] su: No module specific data is present
Nov 28 06:07:45.003 INFO running `"docker" "inspect" "84f64f04cec6b5c24b88a5dc3e6c55e5387c5f187cacbfd4a71a9937fad4a58c"`
Nov 28 06:07:45.257 INFO running `"docker" "rm" "-f" "84f64f04cec6b5c24b88a5dc3e6c55e5387c5f187cacbfd4a71a9937fad4a58c"`
Nov 28 06:07:45.579 INFO [stdout] 84f64f04cec6b5c24b88a5dc3e6c55e5387c5f187cacbfd4a71a9937fad4a58c