Oct 27 12:19:47.333 INFO checking ColbyCypherSociety/ChatDemo against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192-2
Oct 27 12:19:47.333 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-0/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/pr-55192-2/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 27 12:19:47.915 INFO blam! 77ebd3c958d1cee7ae46b4db0382089f96b7aabd027080741c3cd6f7f4da7c0b
Oct 27 12:19:47.919 INFO running `"docker" "start" "-a" "77ebd3c958d1cee7ae46b4db0382089f96b7aabd027080741c3cd6f7f4da7c0b"`
Oct 27 12:19:50.147 INFO kablam! usermod: no changes
Oct 27 12:19:50.306 INFO kablam!    Compiling num-bigint v0.2.0
Oct 27 12:19:50.311 INFO kablam!    Compiling proc-macro2 v0.4.13
Oct 27 12:19:50.311 INFO kablam!     Checking num-iter v0.1.37
Oct 27 12:19:56.107 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Oct 27 12:19:56.108 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Oct 27 12:19:56.109 INFO kablam!     |
Oct 27 12:19:56.109 INFO kablam! 359 |             Span::Nightly(proc_macro::Span::def_site())
Oct 27 12:19:56.110 INFO kablam!     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 12:19:56.111 INFO kablam!     |
Oct 27 12:19:56.111 INFO kablam!     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Oct 27 12:19:56.112 INFO kablam! 
Oct 27 12:19:56.163 INFO kablam! error: aborting due to previous error
Oct 27 12:19:56.164 INFO kablam! 
Oct 27 12:19:56.165 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Oct 27 12:19:56.183 INFO kablam! error: Could not compile `proc-macro2`.
Oct 27 12:19:56.184 INFO kablam! warning: build failed, waiting for other jobs to finish...
Oct 27 12:19:57.062 INFO kablam! error: build failed
Oct 27 12:19:57.072 INFO kablam! su: No module specific data is present
Oct 27 12:19:58.063 INFO running `"docker" "rm" "-f" "77ebd3c958d1cee7ae46b4db0382089f96b7aabd027080741c3cd6f7f4da7c0b"`
Oct 27 12:19:58.406 INFO blam! 77ebd3c958d1cee7ae46b4db0382089f96b7aabd027080741c3cd6f7f4da7c0b