Aug 01 20:38:39.238 INFO checking terminal-linked-hash-map-0.1.0 against 1.27.2 for lazy_static-1
Aug 01 20:38:39.238 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:38:39.238 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:38:39.238 INFO running `"docker" "create" "-v" "/tmp/crater.wbwl0IJIR6o3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 01 20:38:39.571 INFO blam! ad6f7778954ee8050c735d6e2c349897768a2d9ce1a9b7b39139b752577660d6
Aug 01 20:38:39.574 INFO running `"docker" "start" "-a" "ad6f7778954ee8050c735d6e2c349897768a2d9ce1a9b7b39139b752577660d6"`
Aug 01 20:38:40.549 INFO kablam!     Checking terminal-linked-hash-map v0.1.0 (file:///source)
Aug 01 20:38:41.336 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:38:41.336 INFO kablam!   --> src/lib.rs:31:19
Aug 01 20:38:41.336 INFO kablam!    |
Aug 01 20:38:41.336 INFO kablam! 31 | #![cfg_attr(test, feature(test))]
Aug 01 20:38:41.336 INFO kablam!    |                   ^^^^^^^^^^^^^^
Aug 01 20:38:41.345 INFO kablam! 
Aug 01 20:38:41.347 INFO kablam! error: aborting due to previous error
Aug 01 20:38:41.347 INFO kablam! 
Aug 01 20:38:41.347 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:38:41.354 INFO kablam! error: Could not compile `terminal-linked-hash-map`.
Aug 01 20:38:41.355 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:38:41.792 INFO kablam! error: build failed
Aug 01 20:38:41.794 INFO kablam! su: No module specific data is present
Aug 01 20:38:42.360 INFO running `"docker" "rm" "-f" "ad6f7778954ee8050c735d6e2c349897768a2d9ce1a9b7b39139b752577660d6"`
Aug 01 20:38:42.555 INFO blam! ad6f7778954ee8050c735d6e2c349897768a2d9ce1a9b7b39139b752577660d6