Aug 02 14:33:34.804 INFO checking atomicring-1.0.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 14:33:34.804 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:33:34.804 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:33:34.804 INFO running `"docker" "create" "-v" "/tmp/crater.m1oEAR0RjYCr:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2+tmplazy:/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 14:33:35.046 INFO blam! c0cf2322889b38952356d70690558f3dc6f138394692ad9d7deecc8dfa43922e
Aug 02 14:33:35.050 INFO running `"docker" "start" "-a" "c0cf2322889b38952356d70690558f3dc6f138394692ad9d7deecc8dfa43922e"`
Aug 02 14:33:36.814 INFO kablam!     Checking mpmc v0.1.5
Aug 02 14:33:36.815 INFO kablam!     Checking atomicring v1.0.0 (file:///source)
Aug 02 14:33:39.839 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:33:39.839 INFO kablam!  --> benches/bench_atomic_ring.rs:1:1
Aug 02 14:33:39.839 INFO kablam!   |
Aug 02 14:33:39.839 INFO kablam! 1 | #![feature(test)]
Aug 02 14:33:39.839 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:33:39.840 INFO kablam! 
Aug 02 14:33:39.841 INFO kablam! error: aborting due to previous error
Aug 02 14:33:39.841 INFO kablam! 
Aug 02 14:33:39.841 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:33:39.864 INFO kablam! error: Could not compile `atomicring`.
Aug 02 14:33:39.864 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 14:33:41.162 INFO kablam! error: build failed
Aug 02 14:33:41.164 INFO kablam! su: No module specific data is present
Aug 02 14:33:43.335 INFO running `"docker" "rm" "-f" "c0cf2322889b38952356d70690558f3dc6f138394692ad9d7deecc8dfa43922e"`
Aug 02 14:33:43.481 INFO blam! c0cf2322889b38952356d70690558f3dc6f138394692ad9d7deecc8dfa43922e