Nov 28 14:06:51.512 INFO checking ColbyCypherSociety/ChatDemo against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 14:06:51.514 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 28 14:06:52.040 INFO [stdout] 8785ab79a1895f8be60f550c6ef743694bd371478b3cc988d73cd55a1ddd1614
Nov 28 14:06:52.048 INFO running `"docker" "start" "-a" "8785ab79a1895f8be60f550c6ef743694bd371478b3cc988d73cd55a1ddd1614"`
Nov 28 14:06:53.080 INFO [stderr] usermod: no changes
Nov 28 14:06:53.323 INFO [stderr]    Compiling num-bigint v0.2.0
Nov 28 14:06:53.325 INFO [stderr]    Compiling proc-macro2 v0.4.13
Nov 28 14:06:57.949 INFO [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 28 14:06:57.949 INFO [stderr]    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Nov 28 14:06:57.950 INFO [stderr]     |
Nov 28 14:06:57.950 INFO [stderr] 359 |             Span::Nightly(proc_macro::Span::def_site())
Nov 28 14:06:57.950 INFO [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 14:06:57.950 INFO [stderr]     |
Nov 28 14:06:57.950 INFO [stderr]     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 28 14:06:57.951 INFO [stderr] 
Nov 28 14:06:57.972 INFO [stderr] error: aborting due to previous error
Nov 28 14:06:57.972 INFO [stderr] 
Nov 28 14:06:57.972 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Nov 28 14:06:57.980 INFO [stderr] error: Could not compile `proc-macro2`.
Nov 28 14:06:57.980 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 28 14:06:58.526 INFO [stderr] error: build failed
Nov 28 14:06:58.527 INFO [stderr] su: No module specific data is present
Nov 28 14:06:59.132 INFO running `"docker" "inspect" "8785ab79a1895f8be60f550c6ef743694bd371478b3cc988d73cd55a1ddd1614"`
Nov 28 14:06:59.433 INFO running `"docker" "rm" "-f" "8785ab79a1895f8be60f550c6ef743694bd371478b3cc988d73cd55a1ddd1614"`
Nov 28 14:06:59.712 INFO [stdout] 8785ab79a1895f8be60f550c6ef743694bd371478b3cc988d73cd55a1ddd1614