Aug 02 10:51:24.904 INFO checking encoding-index-korean-1.20141219.5 against 1.27.2+tmplazy for lazy_static-1
Aug 02 10:51:24.904 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:51:24.904 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:51:24.904 INFO running `"docker" "create" "-v" "/tmp/crater.NpLbEbUa7aUA:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2+tmplazy:/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 10:51:25.091 INFO blam! d9dd765117290829a680f8d10256339f2ca55994dff8892907f6eefc35c92091
Aug 02 10:51:25.096 INFO running `"docker" "start" "-a" "d9dd765117290829a680f8d10256339f2ca55994dff8892907f6eefc35c92091"`
Aug 02 10:51:26.154 INFO kablam!     Checking encoding-index-korean v1.20141219.5 (file:///source)
Aug 02 10:51:26.799 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:51:26.800 INFO kablam!  --> lib.rs:8:19
Aug 02 10:51:26.800 INFO kablam!   |
Aug 02 10:51:26.800 INFO kablam! 8 | #![cfg_attr(test, feature(test))]
Aug 02 10:51:26.800 INFO kablam!   |                   ^^^^^^^^^^^^^^
Aug 02 10:51:26.800 INFO kablam! 
Aug 02 10:51:26.808 INFO kablam! error: aborting due to previous error
Aug 02 10:51:26.808 INFO kablam! 
Aug 02 10:51:26.808 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:51:26.815 INFO kablam! error: Could not compile `encoding-index-korean`.
Aug 02 10:51:26.815 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:51:27.788 INFO kablam! error: build failed
Aug 02 10:51:27.792 INFO kablam! su: No module specific data is present
Aug 02 10:51:28.573 INFO running `"docker" "rm" "-f" "d9dd765117290829a680f8d10256339f2ca55994dff8892907f6eefc35c92091"`
Aug 02 10:51:28.749 INFO blam! d9dd765117290829a680f8d10256339f2ca55994dff8892907f6eefc35c92091