Dec 14 03:23:21.260 INFO testing alexandermccormick/wasm-conways-game-of-life against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 03:23:21.260 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14 03:23:21.599 INFO [stdout] 9158c29bdb1983ac2bf3c8a517ed8fd241db1990679edcad2ff5bcd1683491c5
Dec 14 03:23:21.601 INFO running `"docker" "start" "-a" "9158c29bdb1983ac2bf3c8a517ed8fd241db1990679edcad2ff5bcd1683491c5"`
Dec 14 03:23:22.155 INFO [stderr] usermod: no changes
Dec 14 03:23:22.235 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.17
Dec 14 03:23:22.235 INFO [stderr]    Compiling proc-macro2 v0.4.9
Dec 14 03:23:23.172 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Dec 14 03:23:23.173 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.9/src/unstable.rs:347:27
Dec 14 03:23:23.173 INFO [stderr]     |
Dec 14 03:23:23.173 INFO [stderr] 347 |             Span::Nightly(proc_macro::Span::def_site())
Dec 14 03:23:23.173 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:23:23.173 INFO [stderr]     |
Dec 14 03:23:23.173 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Dec 14 03:23:23.173 INFO [stderr] 
Dec 14 03:23:23.204 INFO [stderr] error: aborting due to previous error
Dec 14 03:23:23.204 INFO [stderr] 
Dec 14 03:23:23.204 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 14 03:23:23.215 INFO [stderr] error: Could not compile `proc-macro2`.
Dec 14 03:23:23.215 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 14 03:23:23.247 INFO [stderr] error: build failed
Dec 14 03:23:23.249 INFO [stderr] su: No module specific data is present
Dec 14 03:23:23.617 INFO running `"docker" "inspect" "9158c29bdb1983ac2bf3c8a517ed8fd241db1990679edcad2ff5bcd1683491c5"`
Dec 14 03:23:23.713 INFO running `"docker" "rm" "-f" "9158c29bdb1983ac2bf3c8a517ed8fd241db1990679edcad2ff5bcd1683491c5"`
Dec 14 03:23:23.825 INFO [stdout] 9158c29bdb1983ac2bf3c8a517ed8fd241db1990679edcad2ff5bcd1683491c5