Aug 02 02:10:01.305 INFO checking podio-0.1.6 against 1.27.2 for lazy_static-1
Aug 02 02:10:01.305 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:10:01.305 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:10:01.305 INFO running `"docker" "create" "-v" "/tmp/crater.qvJgL8Xb5uba:/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 02 02:10:01.592 INFO blam! ce5a0cac0a1c1e1a40909638849ff9584c0b7147ba5c8c314a58fecfae6f0eed
Aug 02 02:10:01.594 INFO running `"docker" "start" "-a" "ce5a0cac0a1c1e1a40909638849ff9584c0b7147ba5c8c314a58fecfae6f0eed"`
Aug 02 02:10:02.592 INFO kablam!     Checking podio v0.1.6 (file:///source)
Aug 02 02:10:04.039 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:10:04.040 INFO kablam!  --> benches/benchmark.rs:2:1
Aug 02 02:10:04.040 INFO kablam!   |
Aug 02 02:10:04.040 INFO kablam! 2 | #![feature(test)]
Aug 02 02:10:04.040 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 02:10:04.040 INFO kablam! 
Aug 02 02:10:04.040 INFO kablam! error: aborting due to previous error
Aug 02 02:10:04.040 INFO kablam! 
Aug 02 02:10:04.040 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:10:04.065 INFO kablam! error: Could not compile `podio`.
Aug 02 02:10:04.066 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 02:10:04.537 INFO kablam! error: build failed
Aug 02 02:10:04.539 INFO kablam! su: No module specific data is present
Aug 02 02:10:05.059 INFO running `"docker" "rm" "-f" "ce5a0cac0a1c1e1a40909638849ff9584c0b7147ba5c8c314a58fecfae6f0eed"`
Aug 02 02:10:05.231 INFO blam! ce5a0cac0a1c1e1a40909638849ff9584c0b7147ba5c8c314a58fecfae6f0eed