Oct 21 21:48:42.951 INFO checking ColbyCypherSociety/ChatDemo against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 21:48:42.951 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-2/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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"`
Oct 21 21:48:43.436 INFO blam! e7761ba04a28859635fb6db126297eae2db2e3e468aab3af4ef9abecf9237687
Oct 21 21:48:43.441 INFO running `"docker" "start" "-a" "e7761ba04a28859635fb6db126297eae2db2e3e468aab3af4ef9abecf9237687"`
Oct 21 21:48:44.689 INFO kablam! usermod: no changes
Oct 21 21:48:44.884 INFO kablam!    Compiling proc-macro2 v0.4.13
Oct 21 21:48:44.892 INFO kablam!    Compiling wasm-bindgen-shared v0.2.17
Oct 21 21:48:44.892 INFO kablam!    Compiling num-bigint v0.2.0
Oct 21 21:48:51.941 INFO kablam!     Checking num-rational v0.2.1
Oct 21 21:48:52.596 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Oct 21 21:48:52.596 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Oct 21 21:48:52.596 INFO kablam!     |
Oct 21 21:48:52.596 INFO kablam! 359 |             Span::Nightly(proc_macro::Span::def_site())
Oct 21 21:48:52.596 INFO kablam!     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 21:48:52.596 INFO kablam!     |
Oct 21 21:48:52.596 INFO kablam!     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Oct 21 21:48:52.596 INFO kablam! 
Oct 21 21:48:52.632 INFO kablam! error: aborting due to previous error
Oct 21 21:48:52.632 INFO kablam! 
Oct 21 21:48:52.632 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Oct 21 21:48:52.636 INFO kablam! error: Could not compile `proc-macro2`.
Oct 21 21:48:52.636 INFO kablam! warning: build failed, waiting for other jobs to finish...
Oct 21 21:48:53.364 INFO kablam! error: build failed
Oct 21 21:48:53.364 INFO kablam! su: No module specific data is present
Oct 21 21:48:53.977 INFO running `"docker" "rm" "-f" "e7761ba04a28859635fb6db126297eae2db2e3e468aab3af4ef9abecf9237687"`
Oct 21 21:48:54.246 INFO blam! e7761ba04a28859635fb6db126297eae2db2e3e468aab3af4ef9abecf9237687