Nov 27 17:36:27.717 INFO documenting media-io/timed-text-wasm against master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb for pr-55318
Nov 27 17:36:27.719 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-2/master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55318/master#6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb:/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 +6bfb46e4ac9a2704f06de1a2ff7a4612cd70c8cb-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 27 17:36:28.163 INFO [stdout] 82ebba504ca64206408d6943c4ec126f1e8e19d5b4648d5c7c433677e6d38728
Nov 27 17:36:28.171 INFO running `"docker" "start" "-a" "82ebba504ca64206408d6943c4ec126f1e8e19d5b4648d5c7c433677e6d38728"`
Nov 27 17:36:30.010 INFO [stderr] usermod: no changes
Nov 27 17:36:30.195 INFO [stderr]    Compiling proc-macro2 v0.4.12
Nov 27 17:36:30.195 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.16
Nov 27 17:36:30.204 INFO [stderr]    Compiling log v0.4.3
Nov 27 17:36:30.212 INFO [stderr]    Compiling ryu v0.2.3
Nov 27 17:36:30.212 INFO [stderr]    Compiling serde v1.0.71
Nov 27 17:36:34.323 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 27 17:36:34.323 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.12/src/unstable.rs:346:27
Nov 27 17:36:34.323 INFO [stderr]     |
Nov 27 17:36:34.323 INFO [stderr] 346 |             Span::Nightly(proc_macro::Span::def_site())
Nov 27 17:36:34.323 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:36:34.323 INFO [stderr]     |
Nov 27 17:36:34.323 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 27 17:36:34.323 INFO [stderr] 
Nov 27 17:36:34.359 INFO [stderr] error: aborting due to previous error
Nov 27 17:36:34.359 INFO [stderr] 
Nov 27 17:36:34.359 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 27 17:36:34.387 INFO [stderr] error: Could not compile `proc-macro2`.
Nov 27 17:36:34.387 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 27 17:36:43.606 INFO [stderr] error: build failed
Nov 27 17:36:43.608 INFO [stderr] su: No module specific data is present
Nov 27 17:36:43.928 INFO running `"docker" "inspect" "82ebba504ca64206408d6943c4ec126f1e8e19d5b4648d5c7c433677e6d38728"`
Nov 27 17:36:44.065 INFO running `"docker" "rm" "-f" "82ebba504ca64206408d6943c4ec126f1e8e19d5b4648d5c7c433677e6d38728"`
Nov 27 17:36:44.199 INFO [stdout] 82ebba504ca64206408d6943c4ec126f1e8e19d5b4648d5c7c433677e6d38728