Dec 06 14:16:56.530 INFO testing EmmaRamirez/rust-and-webassembly-talk against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 14:16:56.530 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 06 14:16:57.099 INFO [stdout] 8366ba03192f0d430df680e58eebe694aa4f75eff70ed679cc6d61b576f99969
Dec 06 14:16:57.101 INFO running `"docker" "start" "-a" "8366ba03192f0d430df680e58eebe694aa4f75eff70ed679cc6d61b576f99969"`
Dec 06 14:16:58.785 INFO [stderr] usermod: no changes
Dec 06 14:16:58.936 INFO [stderr]    Compiling proc-macro2 v0.4.12
Dec 06 14:16:58.944 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.16
Dec 06 14:17:01.319 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Dec 06 14:17:01.319 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.12/src/unstable.rs:346:27
Dec 06 14:17:01.319 INFO [stderr]     |
Dec 06 14:17:01.319 INFO [stderr] 346 |             Span::Nightly(proc_macro::Span::def_site())
Dec 06 14:17:01.319 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 14:17:01.319 INFO [stderr]     |
Dec 06 14:17:01.319 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Dec 06 14:17:01.319 INFO [stderr] 
Dec 06 14:17:01.337 INFO [stderr] error: aborting due to previous error
Dec 06 14:17:01.337 INFO [stderr] 
Dec 06 14:17:01.337 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 06 14:17:01.346 INFO [stderr] error: Could not compile `proc-macro2`.
Dec 06 14:17:01.346 INFO [stderr] 
Dec 06 14:17:01.347 INFO [stderr] To learn more, run the command again with --verbose.
Dec 06 14:17:01.349 INFO [stderr] su: No module specific data is present
Dec 06 14:17:03.068 INFO running `"docker" "inspect" "8366ba03192f0d430df680e58eebe694aa4f75eff70ed679cc6d61b576f99969"`
Dec 06 14:17:03.406 INFO running `"docker" "rm" "-f" "8366ba03192f0d430df680e58eebe694aa4f75eff70ed679cc6d61b576f99969"`
Dec 06 14:17:03.768 INFO [stdout] 8366ba03192f0d430df680e58eebe694aa4f75eff70ed679cc6d61b576f99969