Nov 28 13:46:54.136 INFO checking EmmaRamirez/rust-and-webassembly-talk against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 13:46:54.138 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 13:46:54.631 INFO [stdout] 4829a504f25f3629970f0a004a15e46103ccd53ab7403b7e427b7aeaa4f402d8
Nov 28 13:46:54.633 INFO running `"docker" "start" "-a" "4829a504f25f3629970f0a004a15e46103ccd53ab7403b7e427b7aeaa4f402d8"`
Nov 28 13:46:56.731 INFO [stderr] usermod: no changes
Nov 28 13:46:56.927 INFO [stderr]    Compiling proc-macro2 v0.4.12
Nov 28 13:47:00.362 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 28 13:47:00.362 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.12/src/unstable.rs:346:27
Nov 28 13:47:00.362 INFO [stderr]     |
Nov 28 13:47:00.362 INFO [stderr] 346 |             Span::Nightly(proc_macro::Span::def_site())
Nov 28 13:47:00.362 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:47:00.362 INFO [stderr]     |
Nov 28 13:47:00.363 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 28 13:47:00.363 INFO [stderr] 
Nov 28 13:47:00.381 INFO [stderr] error: aborting due to previous error
Nov 28 13:47:00.381 INFO [stderr] 
Nov 28 13:47:00.381 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 13:47:00.395 INFO [stderr] error: Could not compile `proc-macro2`.
Nov 28 13:47:00.396 INFO [stderr] 
Nov 28 13:47:00.396 INFO [stderr] To learn more, run the command again with --verbose.
Nov 28 13:47:00.398 INFO [stderr] su: No module specific data is present
Nov 28 13:47:01.829 INFO running `"docker" "inspect" "4829a504f25f3629970f0a004a15e46103ccd53ab7403b7e427b7aeaa4f402d8"`
Nov 28 13:47:02.269 INFO running `"docker" "rm" "-f" "4829a504f25f3629970f0a004a15e46103ccd53ab7403b7e427b7aeaa4f402d8"`
Nov 28 13:47:02.613 INFO [stdout] 4829a504f25f3629970f0a004a15e46103ccd53ab7403b7e427b7aeaa4f402d8