Aug 02 14:05:36.949 INFO checking bit_collection-0.2.3 against 1.27.2 for lazy_static-1
Aug 02 14:05:36.949 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:05:36.949 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:05:36.949 INFO running `"docker" "create" "-v" "/tmp/crater.zvWCVsikDier:/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 14:05:37.213 INFO blam! eed9d5e6f73beed685c4723c1e0c61ab64a63971ff4f301c47c3c810cd9b6a8c
Aug 02 14:05:37.219 INFO running `"docker" "start" "-a" "eed9d5e6f73beed685c4723c1e0c61ab64a63971ff4f301c47c3c810cd9b6a8c"`
Aug 02 14:05:38.124 INFO kablam!    Compiling bit_collection_derive v0.2.2
Aug 02 14:05:43.081 INFO kablam!     Checking bit_collection v0.2.3 (file:///source)
Aug 02 14:05:45.262 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:05:45.262 INFO kablam!  --> benches/bench.rs:1:1
Aug 02 14:05:45.262 INFO kablam!   |
Aug 02 14:05:45.262 INFO kablam! 1 | #![feature(test)]
Aug 02 14:05:45.262 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 14:05:45.262 INFO kablam! 
Aug 02 14:05:45.263 INFO kablam! error: aborting due to previous error
Aug 02 14:05:45.263 INFO kablam! 
Aug 02 14:05:45.263 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:05:45.267 INFO kablam! error: Could not compile `bit_collection`.
Aug 02 14:05:45.268 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 14:05:45.763 INFO kablam! error: build failed
Aug 02 14:05:45.764 INFO kablam! su: No module specific data is present
Aug 02 14:05:46.457 INFO running `"docker" "rm" "-f" "eed9d5e6f73beed685c4723c1e0c61ab64a63971ff4f301c47c3c810cd9b6a8c"`
Aug 02 14:05:46.556 INFO blam! eed9d5e6f73beed685c4723c1e0c61ab64a63971ff4f301c47c3c810cd9b6a8c