Aug 02 10:04:47.843 INFO checking fitrs-0.1.2 against 1.27.2+tmplazy for lazy_static-1
Aug 02 10:04:47.844 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:04:47.844 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:04:47.844 INFO running `"docker" "create" "-v" "/tmp/crater.DLuc0PUELLCi:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2+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 10:04:48.010 INFO blam! 6bf568bcdb678d73d23c21d8543ca16a6a061acd199bfe166c0b7477c0864010
Aug 02 10:04:48.012 INFO running `"docker" "start" "-a" "6bf568bcdb678d73d23c21d8543ca16a6a061acd199bfe166c0b7477c0864010"`
Aug 02 10:04:49.075 INFO kablam!     Checking fitrs v0.1.2 (file:///source)
Aug 02 10:04:51.335 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:04:51.336 INFO kablam!  --> benches/fits.rs:1:1
Aug 02 10:04:51.336 INFO kablam!   |
Aug 02 10:04:51.336 INFO kablam! 1 | #![feature(test)]
Aug 02 10:04:51.336 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 10:04:51.336 INFO kablam! 
Aug 02 10:04:51.337 INFO kablam! error: aborting due to previous error
Aug 02 10:04:51.337 INFO kablam! 
Aug 02 10:04:51.337 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:04:51.343 INFO kablam! error: Could not compile `fitrs`.
Aug 02 10:04:51.343 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:04:51.508 INFO kablam! error: build failed
Aug 02 10:04:51.510 INFO kablam! su: No module specific data is present
Aug 02 10:04:52.114 INFO running `"docker" "rm" "-f" "6bf568bcdb678d73d23c21d8543ca16a6a061acd199bfe166c0b7477c0864010"`
Aug 02 10:04:52.272 INFO blam! 6bf568bcdb678d73d23c21d8543ca16a6a061acd199bfe166c0b7477c0864010