Aug 02 02:44:13.713 INFO checking pangu-0.2.0 against 1.27.2 for lazy_static-1
Aug 02 02:44:13.713 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:44:13.713 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:44:13.713 INFO running `"docker" "create" "-v" "/tmp/crater.RkJilTB9JSA1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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 02:44:13.964 INFO blam! 8a73514d808ff65ec386c752f540558a49eccfb00cf2cca479b7f51539eb3dc9
Aug 02 02:44:13.966 INFO running `"docker" "start" "-a" "8a73514d808ff65ec386c752f540558a49eccfb00cf2cca479b7f51539eb3dc9"`
Aug 02 02:44:14.883 INFO kablam!     Checking pangu v0.2.0 (file:///source)
Aug 02 02:44:16.363 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:44:16.363 INFO kablam!  --> benches/spacing.rs:1:1
Aug 02 02:44:16.363 INFO kablam!   |
Aug 02 02:44:16.363 INFO kablam! 1 | #![feature(test)]
Aug 02 02:44:16.363 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 02:44:16.363 INFO kablam! 
Aug 02 02:44:16.363 INFO kablam! error: aborting due to previous error
Aug 02 02:44:16.363 INFO kablam! 
Aug 02 02:44:16.363 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:44:16.372 INFO kablam! error: Could not compile `pangu`.
Aug 02 02:44:16.373 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 02:44:17.865 INFO kablam! error: build failed
Aug 02 02:44:17.873 INFO kablam! su: No module specific data is present
Aug 02 02:44:18.551 INFO running `"docker" "rm" "-f" "8a73514d808ff65ec386c752f540558a49eccfb00cf2cca479b7f51539eb3dc9"`
Aug 02 02:44:18.719 INFO blam! 8a73514d808ff65ec386c752f540558a49eccfb00cf2cca479b7f51539eb3dc9