Nov 02 22:13:38.296 INFO checking ColbyCypherSociety/ChatDemo against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 02 22:13:38.296 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-2/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/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 +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-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 02 22:13:38.485 INFO blam! c805f374340c60ab6fe9d837c2af0f34dfdbec510906775c1e12b66b5e19e5cf
Nov 02 22:13:38.490 INFO running `"docker" "start" "-a" "c805f374340c60ab6fe9d837c2af0f34dfdbec510906775c1e12b66b5e19e5cf"`
Nov 02 22:13:39.107 INFO kablam! usermod: no changes
Nov 02 22:13:39.280 INFO kablam!    Compiling proc-macro2 v0.4.13
Nov 02 22:13:39.280 INFO kablam!    Compiling wasm-bindgen-shared v0.2.17
Nov 02 22:13:39.284 INFO kablam!    Compiling num-bigint v0.2.0
Nov 02 22:13:39.284 INFO kablam!    Compiling ryu v0.2.4
Nov 02 22:13:39.284 INFO kablam!     Checking num-complex v0.2.0
Nov 02 22:13:39.284 INFO kablam!     Checking num-iter v0.1.37
Nov 02 22:13:41.327 INFO kablam!    Compiling serde_json v1.0.26
Nov 02 22:13:47.904 INFO kablam!     Checking num-rational v0.2.1
Nov 02 22:13:49.420 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 02 22:13:49.425 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Nov 02 22:13:49.425 INFO kablam!     |
Nov 02 22:13:49.426 INFO kablam! 359 |             Span::Nightly(proc_macro::Span::def_site())
Nov 02 22:13:49.426 INFO kablam!     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 22:13:49.426 INFO kablam!     |
Nov 02 22:13:49.427 INFO kablam!     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 02 22:13:49.427 INFO kablam! 
Nov 02 22:13:49.448 INFO kablam! error: aborting due to previous error
Nov 02 22:13:49.448 INFO kablam! 
Nov 02 22:13:49.448 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Nov 02 22:13:49.457 INFO kablam! error: Could not compile `proc-macro2`.
Nov 02 22:13:49.457 INFO kablam! warning: build failed, waiting for other jobs to finish...
Nov 02 22:13:50.137 INFO kablam! error: build failed
Nov 02 22:13:50.156 INFO kablam! su: No module specific data is present
Nov 02 22:13:50.845 INFO running `"docker" "rm" "-f" "c805f374340c60ab6fe9d837c2af0f34dfdbec510906775c1e12b66b5e19e5cf"`
Nov 02 22:13:51.203 INFO blam! c805f374340c60ab6fe9d837c2af0f34dfdbec510906775c1e12b66b5e19e5cf