Dec 11 13:48:02.533 INFO checking media-io/timed-text-wasm against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 13:48:02.533 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 13:48:02.944 INFO [stdout] 083bf83ede0c1b6a3ee0679b0536e2263354a8fe9339658eeadb4dd6a025e5f2
Dec 11 13:48:02.946 INFO running `"docker" "start" "-a" "083bf83ede0c1b6a3ee0679b0536e2263354a8fe9339658eeadb4dd6a025e5f2"`
Dec 11 13:48:04.276 INFO [stderr] usermod: no changes
Dec 11 13:48:04.426 INFO [stderr]    Compiling proc-macro2 v0.4.12
Dec 11 13:48:04.426 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.16
Dec 11 13:48:04.444 INFO [stderr]    Compiling log v0.4.3
Dec 11 13:48:04.444 INFO [stderr]    Compiling serde v1.0.71
Dec 11 13:48:04.444 INFO [stderr]    Compiling ryu v0.2.3
Dec 11 13:48:07.212 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Dec 11 13:48:07.212 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.12/src/unstable.rs:346:27
Dec 11 13:48:07.212 INFO [stderr]     |
Dec 11 13:48:07.212 INFO [stderr] 346 |             Span::Nightly(proc_macro::Span::def_site())
Dec 11 13:48:07.212 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:48:07.212 INFO [stderr]     |
Dec 11 13:48:07.212 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Dec 11 13:48:07.212 INFO [stderr] 
Dec 11 13:48:07.240 INFO [stderr] error: aborting due to previous error
Dec 11 13:48:07.240 INFO [stderr] 
Dec 11 13:48:07.240 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 11 13:48:07.264 INFO [stderr] error: Could not compile `proc-macro2`.
Dec 11 13:48:07.264 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 11 13:48:16.628 INFO [stderr] error: build failed
Dec 11 13:48:16.628 INFO [stderr] su: No module specific data is present
Dec 11 13:48:16.941 INFO running `"docker" "inspect" "083bf83ede0c1b6a3ee0679b0536e2263354a8fe9339658eeadb4dd6a025e5f2"`
Dec 11 13:48:17.065 INFO running `"docker" "rm" "-f" "083bf83ede0c1b6a3ee0679b0536e2263354a8fe9339658eeadb4dd6a025e5f2"`
Dec 11 13:48:17.182 INFO [stdout] 083bf83ede0c1b6a3ee0679b0536e2263354a8fe9339658eeadb4dd6a025e5f2