Dec 06 14:53:30.054 INFO testing ColbyCypherSociety/ChatDemo against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 14:53:30.054 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 14:53:30.236 INFO [stdout] c54ce96ae12e3719b3ae0bfa0113a4ff48ce758fb54b47257081dcbb182b7466
Dec 06 14:53:30.238 INFO running `"docker" "start" "-a" "c54ce96ae12e3719b3ae0bfa0113a4ff48ce758fb54b47257081dcbb182b7466"`
Dec 06 14:53:30.674 INFO [stderr] usermod: no changes
Dec 06 14:53:30.783 INFO [stderr]    Compiling wasm-bindgen-shared v0.2.17
Dec 06 14:53:30.789 INFO [stderr]    Compiling proc-macro2 v0.4.13
Dec 06 14:53:30.789 INFO [stderr]    Compiling num-bigint v0.2.0
Dec 06 14:53:30.789 INFO [stderr]    Compiling num-iter v0.1.37
Dec 06 14:53:31.771 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Dec 06 14:53:31.771 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Dec 06 14:53:31.771 INFO [stderr]     |
Dec 06 14:53:31.771 INFO [stderr] 359 |             Span::Nightly(proc_macro::Span::def_site())
Dec 06 14:53:31.771 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 14:53:31.771 INFO [stderr]     |
Dec 06 14:53:31.771 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Dec 06 14:53:31.771 INFO [stderr] 
Dec 06 14:53:31.787 INFO [stderr] error: aborting due to previous error
Dec 06 14:53:31.787 INFO [stderr] 
Dec 06 14:53:31.787 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 06 14:53:31.795 INFO [stderr] error: Could not compile `proc-macro2`.
Dec 06 14:53:31.795 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 06 14:53:33.804 INFO [stderr] error: build failed
Dec 06 14:53:33.804 INFO [stderr] su: No module specific data is present
Dec 06 14:53:34.466 INFO running `"docker" "inspect" "c54ce96ae12e3719b3ae0bfa0113a4ff48ce758fb54b47257081dcbb182b7466"`
Dec 06 14:53:34.723 INFO running `"docker" "rm" "-f" "c54ce96ae12e3719b3ae0bfa0113a4ff48ce758fb54b47257081dcbb182b7466"`
Dec 06 14:53:35.000 INFO [stdout] c54ce96ae12e3719b3ae0bfa0113a4ff48ce758fb54b47257081dcbb182b7466