Aug 02 02:28:49.196 INFO checking pgn-lexer-0.1.1 against 1.27.2 for lazy_static-1
Aug 02 02:28:49.196 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:28:49.196 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:28:49.196 INFO running `"docker" "create" "-v" "/tmp/crater.TLshn2SjXGZM:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 02:28:49.419 INFO blam! ede14f2810d9a41bb11701846a1f155a079b9aaf19738a1ba04ca20a3b91a7d1
Aug 02 02:28:49.421 INFO running `"docker" "start" "-a" "ede14f2810d9a41bb11701846a1f155a079b9aaf19738a1ba04ca20a3b91a7d1"`
Aug 02 02:28:50.306 INFO kablam!     Checking pgn-lexer v0.1.1 (file:///source)
Aug 02 02:28:51.251 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:28:51.251 INFO kablam!   --> src/lib.rs:17:19
Aug 02 02:28:51.251 INFO kablam!    |
Aug 02 02:28:51.251 INFO kablam! 17 | #![cfg_attr(test, feature(test))]
Aug 02 02:28:51.251 INFO kablam!    |                   ^^^^^^^^^^^^^^
Aug 02 02:28:51.251 INFO kablam! 
Aug 02 02:28:51.260 INFO kablam! error: aborting due to previous error
Aug 02 02:28:51.260 INFO kablam! 
Aug 02 02:28:51.261 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:28:51.280 INFO kablam! error: Could not compile `pgn-lexer`.
Aug 02 02:28:51.280 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 02:28:51.938 INFO kablam! error: build failed
Aug 02 02:28:51.938 INFO kablam! su: No module specific data is present
Aug 02 02:28:52.484 INFO running `"docker" "rm" "-f" "ede14f2810d9a41bb11701846a1f155a079b9aaf19738a1ba04ca20a3b91a7d1"`
Aug 02 02:28:52.613 INFO blam! ede14f2810d9a41bb11701846a1f155a079b9aaf19738a1ba04ca20a3b91a7d1