Nov 07 05:23:34.976 INFO checking ColbyCypherSociety/ChatDemo against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a+rustflags=-Dduplicate_associated_type_bindings for pr-55687
Nov 07 05:23:34.999 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-3/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a+rustflags=-Dduplicate_associated_type_bindings:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a+rustflags=-Dduplicate_associated_type_bindings:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dduplicate_associated_type_bindings" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 07 05:23:35.533 INFO blam! 620c1a33adb3d780e5851bfa3e5697d78ddfbb60c3b90ea0394b6bd486fda346
Nov 07 05:23:35.535 INFO running `"docker" "start" "-a" "620c1a33adb3d780e5851bfa3e5697d78ddfbb60c3b90ea0394b6bd486fda346"`
Nov 07 05:23:36.196 INFO kablam! usermod: no changes
Nov 07 05:23:36.392 INFO kablam!    Compiling num-bigint v0.2.0
Nov 07 05:23:36.392 INFO kablam!    Compiling proc-macro2 v0.4.13
Nov 07 05:23:36.392 INFO kablam!    Compiling ryu v0.2.4
Nov 07 05:23:36.392 INFO kablam!     Checking num-iter v0.1.37
Nov 07 05:23:38.007 INFO kablam!    Compiling serde_json v1.0.26
Nov 07 05:23:41.716 INFO kablam! error[E0658]: use of unstable library feature 'proc_macro_def_site' (see issue #54724)
Nov 07 05:23:41.716 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27
Nov 07 05:23:41.716 INFO kablam!     |
Nov 07 05:23:41.716 INFO kablam! 359 |             Span::Nightly(proc_macro::Span::def_site())
Nov 07 05:23:41.716 INFO kablam!     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 05:23:41.716 INFO kablam!     |
Nov 07 05:23:41.716 INFO kablam!     = help: add #![feature(proc_macro_def_site)] to the crate attributes to enable
Nov 07 05:23:41.716 INFO kablam! 
Nov 07 05:23:41.788 INFO kablam! error: aborting due to previous error
Nov 07 05:23:41.788 INFO kablam! 
Nov 07 05:23:41.788 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Nov 07 05:23:41.821 INFO kablam! error: Could not compile `proc-macro2`.
Nov 07 05:23:41.821 INFO kablam! warning: build failed, waiting for other jobs to finish...
Nov 07 05:23:44.770 INFO kablam! error: build failed
Nov 07 05:23:44.770 INFO kablam! su: No module specific data is present
Nov 07 05:23:45.669 INFO running `"docker" "rm" "-f" "620c1a33adb3d780e5851bfa3e5697d78ddfbb60c3b90ea0394b6bd486fda346"`
Nov 07 05:23:45.968 INFO blam! 620c1a33adb3d780e5851bfa3e5697d78ddfbb60c3b90ea0394b6bd486fda346