Nov 01 12:41:03.542 INFO checking ColbyCypherSociety/ChatDemo against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 12:41:03.542 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-1/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-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 01 12:41:04.036 INFO blam! 8bd839dffdcdc731da2df4bf1a3517c009a38280e29c88256b6e789adfa044c7
Nov 01 12:41:04.048 INFO running `"docker" "start" "-a" "8bd839dffdcdc731da2df4bf1a3517c009a38280e29c88256b6e789adfa044c7"`
Nov 01 12:41:05.461 INFO kablam! usermod: no changes
Nov 01 12:41:05.648 INFO kablam!    Compiling wasm-bindgen-shared v0.2.17
Nov 01 12:41:05.649 INFO kablam!    Compiling num-bigint v0.2.0
Nov 01 12:41:05.652 INFO kablam!    Compiling proc-macro2 v0.4.13
Nov 01 12:41:05.655 INFO kablam!    Compiling ryu v0.2.4
Nov 01 12:41:07.788 INFO kablam!    Compiling serde_json v1.0.26
Nov 01 12:41:10.828 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 01 12:41:10.828 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Nov 01 12:41:10.828 INFO kablam!     |
Nov 01 12:41:10.828 INFO kablam! 359 |             Span::Nightly(proc_macro::Span::def_site())
Nov 01 12:41:10.828 INFO kablam!     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:41:10.828 INFO kablam!     |
Nov 01 12:41:10.828 INFO kablam!     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 01 12:41:10.828 INFO kablam! 
Nov 01 12:41:10.868 INFO kablam! error: aborting due to previous error
Nov 01 12:41:10.868 INFO kablam! 
Nov 01 12:41:10.868 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Nov 01 12:41:10.880 INFO kablam! error: Could not compile `proc-macro2`.
Nov 01 12:41:10.880 INFO kablam! warning: build failed, waiting for other jobs to finish...
Nov 01 12:41:13.165 INFO kablam! error: build failed
Nov 01 12:41:13.167 INFO kablam! su: No module specific data is present
Nov 01 12:41:13.496 INFO running `"docker" "rm" "-f" "8bd839dffdcdc731da2df4bf1a3517c009a38280e29c88256b6e789adfa044c7"`
Nov 01 12:41:13.599 INFO blam! 8bd839dffdcdc731da2df4bf1a3517c009a38280e29c88256b6e789adfa044c7