Aug 01 19:24:08.579 INFO checking variable_size_byte_writer-0.1.5 against 1.27.2+tmplazy for lazy_static-1
Aug 01 19:24:08.580 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:24:08.580 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:24:08.580 INFO running `"docker" "create" "-v" "/tmp/crater.kurMazUetjez:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2+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 01 19:24:08.863 INFO blam! eacf1bd3d6e0aadfdf653254409d746525a225163656a73dfabacbc49befeb35
Aug 01 19:24:08.865 INFO running `"docker" "start" "-a" "eacf1bd3d6e0aadfdf653254409d746525a225163656a73dfabacbc49befeb35"`
Aug 01 19:24:09.963 INFO kablam!     Checking typenum_loops v0.2.0
Aug 01 19:24:10.430 INFO kablam!     Checking variable_size_byte_writer v0.1.5 (file:///source)
Aug 01 19:24:11.383 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:24:11.383 INFO kablam!  --> benches/benches.rs:1:1
Aug 01 19:24:11.383 INFO kablam!   |
Aug 01 19:24:11.383 INFO kablam! 1 | #![feature(test)]
Aug 01 19:24:11.383 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 01 19:24:11.383 INFO kablam! 
Aug 01 19:24:11.383 INFO kablam! error: aborting due to previous error
Aug 01 19:24:11.383 INFO kablam! 
Aug 01 19:24:11.383 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 19:24:11.390 INFO kablam! error: Could not compile `variable_size_byte_writer`.
Aug 01 19:24:11.390 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 19:24:11.724 INFO kablam! error: build failed
Aug 01 19:24:11.736 INFO kablam! su: No module specific data is present
Aug 01 19:24:12.230 INFO running `"docker" "rm" "-f" "eacf1bd3d6e0aadfdf653254409d746525a225163656a73dfabacbc49befeb35"`
Aug 01 19:24:12.407 INFO blam! eacf1bd3d6e0aadfdf653254409d746525a225163656a73dfabacbc49befeb35