Dec 01 23:31:47.520 INFO documenting EmmaRamirez/rust-and-webassembly-talk against master#147e60c5f89cfa2d3ffc247413956a37582c98e7 for pr-55318-1
Dec 01 23:31:47.520 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318-1/worker-6/master#147e60c5f89cfa2d3ffc247413956a37582c98e7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 23:31:48.103 INFO [stdout] b5be49a5813a7892f99d8fbebd802c9001c438e76c449756aa5c2ceda22915e5
Dec 01 23:31:48.105 INFO running `"docker" "start" "-a" "b5be49a5813a7892f99d8fbebd802c9001c438e76c449756aa5c2ceda22915e5"`
Dec 01 23:31:50.580 INFO [stderr] usermod: no changes
Dec 01 23:31:50.784 INFO [stderr]    Compiling proc-macro2 v0.4.12
Dec 01 23:31:50.784 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.16
Dec 01 23:31:50.790 INFO [stderr]    Compiling log v0.4.3
Dec 01 23:31:50.805 INFO [stderr]    Compiling serde v1.0.71
Dec 01 23:31:50.805 INFO [stderr]    Compiling ryu v0.2.3
Dec 01 23:31:58.256 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Dec 01 23:31:58.256 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.12/src/unstable.rs:346:27
Dec 01 23:31:58.256 INFO [stderr]     |
Dec 01 23:31:58.257 INFO [stderr] 346 |             Span::Nightly(proc_macro::Span::def_site())
Dec 01 23:31:58.257 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 23:31:58.257 INFO [stderr]     |
Dec 01 23:31:58.257 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Dec 01 23:31:58.257 INFO [stderr] 
Dec 01 23:31:58.276 INFO [stderr] error: aborting due to previous error
Dec 01 23:31:58.276 INFO [stderr] 
Dec 01 23:31:58.276 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 01 23:31:58.293 INFO [stderr] error: Could not compile `proc-macro2`.
Dec 01 23:31:58.293 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 01 23:32:06.812 INFO [stderr] error: build failed
Dec 01 23:32:06.814 INFO [stderr] su: No module specific data is present
Dec 01 23:32:08.097 INFO running `"docker" "inspect" "b5be49a5813a7892f99d8fbebd802c9001c438e76c449756aa5c2ceda22915e5"`
Dec 01 23:32:08.466 INFO running `"docker" "rm" "-f" "b5be49a5813a7892f99d8fbebd802c9001c438e76c449756aa5c2ceda22915e5"`
Dec 01 23:32:08.777 INFO [stdout] b5be49a5813a7892f99d8fbebd802c9001c438e76c449756aa5c2ceda22915e5