Nov 09 20:30:28.229 INFO checking ColbyCypherSociety/ChatDemo against try#dc13be39fae8d4c607889b27de374b52586485a3 for pr-55632
Nov 09 20:30:28.229 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-6/try#dc13be39fae8d4c607889b27de374b52586485a3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55632/try#dc13be39fae8d4c607889b27de374b52586485a3:/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 +dc13be39fae8d4c607889b27de374b52586485a3-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 09 20:30:28.500 INFO blam! b0b306de8546a3100ab28f36fd5d1512d7982252348b2c2d4d50e07947e50339
Nov 09 20:30:28.502 INFO running `"docker" "start" "-a" "b0b306de8546a3100ab28f36fd5d1512d7982252348b2c2d4d50e07947e50339"`
Nov 09 20:30:29.171 INFO kablam! usermod: no changes
Nov 09 20:30:29.352 INFO kablam!    Compiling num-bigint v0.2.0
Nov 09 20:30:29.352 INFO kablam!    Compiling proc-macro2 v0.4.13
Nov 09 20:30:29.359 INFO kablam!    Compiling serde_json v1.0.26
Nov 09 20:30:33.319 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 09 20:30:33.319 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Nov 09 20:30:33.319 INFO kablam!     |
Nov 09 20:30:33.319 INFO kablam! 359 |             Span::Nightly(proc_macro::Span::def_site())
Nov 09 20:30:33.319 INFO kablam!     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 20:30:33.319 INFO kablam!     |
Nov 09 20:30:33.319 INFO kablam!     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 09 20:30:33.319 INFO kablam! 
Nov 09 20:30:33.343 INFO kablam! error: aborting due to previous error
Nov 09 20:30:33.343 INFO kablam! 
Nov 09 20:30:33.343 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Nov 09 20:30:33.353 INFO kablam! error: Could not compile `proc-macro2`.
Nov 09 20:30:33.353 INFO kablam! warning: build failed, waiting for other jobs to finish...
Nov 09 20:30:35.227 INFO kablam! error: build failed
Nov 09 20:30:35.235 INFO kablam! su: No module specific data is present
Nov 09 20:30:35.937 INFO running `"docker" "rm" "-f" "b0b306de8546a3100ab28f36fd5d1512d7982252348b2c2d4d50e07947e50339"`
Nov 09 20:30:36.302 INFO blam! b0b306de8546a3100ab28f36fd5d1512d7982252348b2c2d4d50e07947e50339