Oct 13 10:50:50.205 INFO checking plex-0.2.3 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 10:50:50.205 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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 13 10:50:50.501 INFO blam! 79ac06644e405c263a8f8a64b2c8d53217c6a030b3a035caaee7be7d8250439f
Oct 13 10:50:50.503 INFO running `"docker" "start" "-a" "79ac06644e405c263a8f8a64b2c8d53217c6a030b3a035caaee7be7d8250439f"`
Oct 13 10:50:51.051 INFO kablam! usermod: no changes
Oct 13 10:50:51.100 INFO kablam!    Compiling bit-vec v0.4.4
Oct 13 10:50:51.100 INFO kablam!     Checking vec_map v0.6.0
Oct 13 10:50:51.100 INFO kablam!    Compiling lalr v0.0.2
Oct 13 10:50:51.109 INFO kablam!     Checking proc-macro2 v0.4.20
Oct 13 10:50:51.109 INFO kablam!    Compiling syn v0.14.9
Oct 13 10:50:54.844 INFO kablam!     Checking bit-set v0.4.0
Oct 13 10:50:57.864 INFO kablam!     Checking redfa v0.0.2
Oct 13 10:51:03.556 INFO kablam!     Checking quote v0.6.8
Oct 13 10:51:25.207 INFO kablam!    Compiling plex v0.2.3 (/source)
Oct 13 10:51:46.656 INFO kablam! error[E0557]: feature has been removed
Oct 13 10:51:46.656 INFO kablam!  --> examples/demo.rs:1:12
Oct 13 10:51:46.656 INFO kablam!   |
Oct 13 10:51:46.656 INFO kablam! 1 | #![feature(proc_macro_gen)]
Oct 13 10:51:46.656 INFO kablam!   |            ^^^^^^^^^^^^^^
Oct 13 10:51:46.656 INFO kablam!   |
Oct 13 10:51:46.656 INFO kablam! note: subsumed by `#![feature(proc_macro_hygiene)]`
Oct 13 10:51:46.656 INFO kablam!  --> examples/demo.rs:1:12
Oct 13 10:51:46.656 INFO kablam!   |
Oct 13 10:51:46.656 INFO kablam! 1 | #![feature(proc_macro_gen)]
Oct 13 10:51:46.656 INFO kablam!   |            ^^^^^^^^^^^^^^
Oct 13 10:51:46.656 INFO kablam! 
Oct 13 10:51:47.349 INFO kablam! error[E0658]: procedural macros cannot expand to macro definitions (see issue #54727)
Oct 13 10:51:47.349 INFO kablam!    --> examples/demo.rs:142:5
Oct 13 10:51:47.349 INFO kablam!     |
Oct 13 10:51:47.350 INFO kablam! 142 | /     parser! {
Oct 13 10:51:47.350 INFO kablam! 143 | |         fn parse_(Token, Span);
Oct 13 10:51:47.351 INFO kablam! 144 | |
Oct 13 10:51:47.351 INFO kablam! 145 | |         // combine two spans
Oct 13 10:51:47.351 INFO kablam! ...   |
Oct 13 10:51:47.351 INFO kablam! 212 | |         }
Oct 13 10:51:47.352 INFO kablam! 213 | |     }
Oct 13 10:51:47.352 INFO kablam!     | |_____^
Oct 13 10:51:47.352 INFO kablam!     |
Oct 13 10:51:47.352 INFO kablam!     = help: add #![feature(proc_macro_hygiene)] to the crate attributes to enable
Oct 13 10:51:47.353 INFO kablam! 
Oct 13 10:51:47.353 INFO kablam! error: aborting due to 2 previous errors
Oct 13 10:51:47.353 INFO kablam! 
Oct 13 10:51:47.353 INFO kablam! Some errors occurred: E0557, E0658.
Oct 13 10:51:47.354 INFO kablam! For more information about an error, try `rustc --explain E0557`.
Oct 13 10:51:47.356 INFO kablam! error: Could not compile `plex`.
Oct 13 10:51:47.356 INFO kablam! 
Oct 13 10:51:47.356 INFO kablam! To learn more, run the command again with --verbose.
Oct 13 10:51:47.357 INFO kablam! su: No module specific data is present
Oct 13 10:51:47.974 INFO running `"docker" "rm" "-f" "79ac06644e405c263a8f8a64b2c8d53217c6a030b3a035caaee7be7d8250439f"`
Oct 13 10:51:48.375 INFO blam! 79ac06644e405c263a8f8a64b2c8d53217c6a030b3a035caaee7be7d8250439f