Aug 02 10:23:01.277 INFO checking fastdivide-0.2.0 against 1.27.2 for lazy_static-1
Aug 02 10:23:01.277 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:23:01.277 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:23:01.277 INFO running `"docker" "create" "-v" "/tmp/crater.W6uTJwyoDJMU:/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 10:23:01.536 INFO blam! c0ce231bbb30d98f49a424d8b516ab9e39020abc16fc920818ef89a1a087e70c
Aug 02 10:23:01.538 INFO running `"docker" "start" "-a" "c0ce231bbb30d98f49a424d8b516ab9e39020abc16fc920818ef89a1a087e70c"`
Aug 02 10:23:02.392 INFO kablam!     Checking fastdivide v0.2.0 (file:///source)
Aug 02 10:23:04.168 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:23:04.168 INFO kablam!  --> src/bench.rs:1:1
Aug 02 10:23:04.168 INFO kablam!   |
Aug 02 10:23:04.168 INFO kablam! 1 | #![feature(test)]
Aug 02 10:23:04.168 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 10:23:04.168 INFO kablam! 
Aug 02 10:23:04.169 INFO kablam! error: aborting due to previous error
Aug 02 10:23:04.169 INFO kablam! 
Aug 02 10:23:04.169 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:23:04.181 INFO kablam! error: Could not compile `fastdivide`.
Aug 02 10:23:04.181 INFO kablam! 
Aug 02 10:23:04.181 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 10:23:04.187 INFO kablam! su: No module specific data is present
Aug 02 10:23:04.978 INFO running `"docker" "rm" "-f" "c0ce231bbb30d98f49a424d8b516ab9e39020abc16fc920818ef89a1a087e70c"`
Aug 02 10:23:05.135 INFO blam! c0ce231bbb30d98f49a424d8b516ab9e39020abc16fc920818ef89a1a087e70c