Aug 01 23:56:29.274 INFO checking run_script-0.1.18 against 1.27.2 for lazy_static-1
Aug 01 23:56:29.274 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:56:29.274 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:56:29.274 INFO running `"docker" "create" "-v" "/tmp/crater.1mW8sDABKlSv:/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 01 23:56:29.534 INFO blam! 51d5d14deeda925723bdfcaf2e65944328b2698ce273baad1937a1921c61fac1
Aug 01 23:56:29.537 INFO running `"docker" "start" "-a" "51d5d14deeda925723bdfcaf2e65944328b2698ce273baad1937a1921c61fac1"`
Aug 01 23:56:30.572 INFO kablam!     Checking users v0.7.0
Aug 01 23:56:31.498 INFO kablam!     Checking run_script v0.1.18 (file:///source)
Aug 01 23:56:34.682 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:56:34.682 INFO kablam!  --> benches/bench_run.rs:1:1
Aug 01 23:56:34.682 INFO kablam!   |
Aug 01 23:56:34.682 INFO kablam! 1 | #![feature(test)]
Aug 01 23:56:34.682 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 23:56:34.692 INFO kablam! 
Aug 01 23:56:34.693 INFO kablam! error: aborting due to previous error
Aug 01 23:56:34.693 INFO kablam! 
Aug 01 23:56:34.694 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:56:34.737 INFO kablam! error: Could not compile `run_script`.
Aug 01 23:56:34.737 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:56:35.195 INFO kablam! error: build failed
Aug 01 23:56:35.197 INFO kablam! su: No module specific data is present
Aug 01 23:56:35.799 INFO running `"docker" "rm" "-f" "51d5d14deeda925723bdfcaf2e65944328b2698ce273baad1937a1921c61fac1"`
Aug 01 23:56:35.960 INFO blam! 51d5d14deeda925723bdfcaf2e65944328b2698ce273baad1937a1921c61fac1