Aug 02 01:23:28.742 INFO checking rand_num_gen-0.1.0 against 1.27.2 for lazy_static-1
Aug 02 01:23:28.742 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:23:28.743 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:23:28.743 INFO running `"docker" "create" "-v" "/tmp/crater.7xjizubAx1lB:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/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 01:23:29.043 INFO blam! b4d6841c204f0a0f78f9cb8cc11802813dae9cc2ee0d8594e4788cb2e49d2099
Aug 02 01:23:29.044 INFO running `"docker" "start" "-a" "b4d6841c204f0a0f78f9cb8cc11802813dae9cc2ee0d8594e4788cb2e49d2099"`
Aug 02 01:23:30.345 INFO kablam!     Checking rand_num_gen v0.1.0 (file:///source)
Aug 02 01:23:30.345 INFO kablam!     Checking imagefmt v4.0.0
Aug 02 01:23:35.598 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:23:35.598 INFO kablam!  --> benches/bench.rs:1:1
Aug 02 01:23:35.598 INFO kablam!   |
Aug 02 01:23:35.598 INFO kablam! 1 | #![feature(test)]
Aug 02 01:23:35.598 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 01:23:35.616 INFO kablam! 
Aug 02 01:23:35.617 INFO kablam! error: aborting due to previous error
Aug 02 01:23:35.617 INFO kablam! 
Aug 02 01:23:35.617 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:23:35.661 INFO kablam! error: Could not compile `rand_num_gen`.
Aug 02 01:23:35.662 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:23:37.674 INFO kablam! error: build failed
Aug 02 01:23:37.680 INFO kablam! su: No module specific data is present
Aug 02 01:23:38.220 INFO running `"docker" "rm" "-f" "b4d6841c204f0a0f78f9cb8cc11802813dae9cc2ee0d8594e4788cb2e49d2099"`
Aug 02 01:23:38.404 INFO blam! b4d6841c204f0a0f78f9cb8cc11802813dae9cc2ee0d8594e4788cb2e49d2099