Aug 02 01:12:30.602 INFO checking rcurl-0.1.0 against 1.27.2 for lazy_static-1
Aug 02 01:12:30.602 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:12:30.602 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:12:30.602 INFO running `"docker" "create" "-v" "/tmp/crater.Mi6GRpeJjxik:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2:/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 01:12:30.951 INFO blam! c5ac25286f4d1abba99f75bc11f6e88aea3ef83403d8252ad815fcc2cba4d056
Aug 02 01:12:30.953 INFO running `"docker" "start" "-a" "c5ac25286f4d1abba99f75bc11f6e88aea3ef83403d8252ad815fcc2cba4d056"`
Aug 02 01:12:31.918 INFO kablam!     Checking rcurl v0.1.0 (file:///source)
Aug 02 01:12:33.515 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:12:33.515 INFO kablam!  --> benches/benches.rs:1:1
Aug 02 01:12:33.515 INFO kablam!   |
Aug 02 01:12:33.516 INFO kablam! 1 | #![feature(test)]
Aug 02 01:12:33.516 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 01:12:33.524 INFO kablam! 
Aug 02 01:12:33.526 INFO kablam! error: aborting due to previous error
Aug 02 01:12:33.537 INFO kablam! 
Aug 02 01:12:33.538 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:12:33.557 INFO kablam! error: Could not compile `rcurl`.
Aug 02 01:12:33.558 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:12:34.140 INFO kablam! error: build failed
Aug 02 01:12:34.142 INFO kablam! su: No module specific data is present
Aug 02 01:12:34.680 INFO running `"docker" "rm" "-f" "c5ac25286f4d1abba99f75bc11f6e88aea3ef83403d8252ad815fcc2cba4d056"`
Aug 02 01:12:34.862 INFO blam! c5ac25286f4d1abba99f75bc11f6e88aea3ef83403d8252ad815fcc2cba4d056