Nov 04 10:37:06.216 INFO checking alexandermccormick/wasm-conways-game-of-life against try#e740b9aa0b624fa39feb39613e76d15bdf57e594 for pr-55655
Nov 04 10:37:06.218 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-6/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55655/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/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 +e740b9aa0b624fa39feb39613e76d15bdf57e594-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 04 10:37:06.710 INFO blam! d2117313ea6d4c4223c32c8873645fb117dd786fbf6f64c5f228e138ee111bf4
Nov 04 10:37:06.711 INFO running `"docker" "start" "-a" "d2117313ea6d4c4223c32c8873645fb117dd786fbf6f64c5f228e138ee111bf4"`
Nov 04 10:37:09.179 INFO kablam! usermod: no changes
Nov 04 10:37:09.294 INFO kablam!    Compiling wasm-bindgen-shared v0.2.17
Nov 04 10:37:09.294 INFO kablam!    Compiling proc-macro2 v0.4.9
Nov 04 10:37:09.296 INFO kablam!    Compiling serde_json v1.0.24
Nov 04 10:37:14.263 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 04 10:37:14.263 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.9/src/unstable.rs:347:27
Nov 04 10:37:14.263 INFO kablam!     |
Nov 04 10:37:14.263 INFO kablam! 347 |             Span::Nightly(proc_macro::Span::def_site())
Nov 04 10:37:14.263 INFO kablam!     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 10:37:14.263 INFO kablam!     |
Nov 04 10:37:14.263 INFO kablam!     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 04 10:37:14.263 INFO kablam! 
Nov 04 10:37:14.295 INFO kablam! error: aborting due to previous error
Nov 04 10:37:14.314 INFO kablam! 
Nov 04 10:37:14.314 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Nov 04 10:37:14.315 INFO kablam! error: Could not compile `proc-macro2`.
Nov 04 10:37:14.315 INFO kablam! warning: build failed, waiting for other jobs to finish...
Nov 04 10:37:16.295 INFO kablam! error: build failed
Nov 04 10:37:16.303 INFO kablam! su: No module specific data is present
Nov 04 10:37:17.486 INFO running `"docker" "rm" "-f" "d2117313ea6d4c4223c32c8873645fb117dd786fbf6f64c5f228e138ee111bf4"`
Nov 04 10:37:17.731 INFO blam! d2117313ea6d4c4223c32c8873645fb117dd786fbf6f64c5f228e138ee111bf4