Dec 01 23:49:53.894 INFO documenting ColbyCypherSociety/ChatDemo against master#147e60c5f89cfa2d3ffc247413956a37582c98e7 for pr-55318-1
Dec 01 23:49:53.894 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318-1/worker-5/master#147e60c5f89cfa2d3ffc247413956a37582c98e7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 23:49:54.372 INFO [stdout] e6c990b210074317dad10125cb5b3737d0cf7209bc608c9f48a9fa8beda8e21c
Dec 01 23:49:54.410 INFO running `"docker" "start" "-a" "e6c990b210074317dad10125cb5b3737d0cf7209bc608c9f48a9fa8beda8e21c"`
Dec 01 23:49:55.660 INFO [stderr] usermod: no changes
Dec 01 23:49:55.916 INFO [stderr]    Compiling proc-macro2 v0.4.13
Dec 01 23:49:55.916 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.17
Dec 01 23:49:55.922 INFO [stderr]    Compiling serde_json v1.0.26
Dec 01 23:49:55.923 INFO [stderr]     Checking num-bigint v0.2.0
Dec 01 23:50:00.898 INFO [stderr]     Checking num-rational v0.2.1
Dec 01 23:50:02.116 INFO [stderr]     Checking num v0.2.0
Dec 01 23:50:02.116 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Dec 01 23:50:02.116 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Dec 01 23:50:02.116 INFO [stderr]     |
Dec 01 23:50:02.116 INFO [stderr] 359 |             Span::Nightly(proc_macro::Span::def_site())
Dec 01 23:50:02.116 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 23:50:02.116 INFO [stderr]     |
Dec 01 23:50:02.116 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Dec 01 23:50:02.116 INFO [stderr] 
Dec 01 23:50:02.140 INFO [stderr] error: aborting due to previous error
Dec 01 23:50:02.140 INFO [stderr] 
Dec 01 23:50:02.140 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 01 23:50:02.147 INFO [stderr] error: Could not compile `proc-macro2`.
Dec 01 23:50:02.147 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 01 23:50:02.607 INFO [stderr] error: build failed
Dec 01 23:50:02.607 INFO [stderr] su: No module specific data is present
Dec 01 23:50:03.194 INFO running `"docker" "inspect" "e6c990b210074317dad10125cb5b3737d0cf7209bc608c9f48a9fa8beda8e21c"`
Dec 01 23:50:03.385 INFO running `"docker" "rm" "-f" "e6c990b210074317dad10125cb5b3737d0cf7209bc608c9f48a9fa8beda8e21c"`
Dec 01 23:50:03.540 INFO [stdout] e6c990b210074317dad10125cb5b3737d0cf7209bc608c9f48a9fa8beda8e21c