Aug 02 04:59:56.114 INFO checking lopdf-0.15.2 against 1.27.2+tmplazy for lazy_static-1
Aug 02 04:59:56.114 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:59:56.114 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:59:56.114 INFO running `"docker" "create" "-v" "/tmp/crater.lvLkJQiCIsRq:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2+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 04:59:56.401 INFO blam! 371526b2d4dbfb427a0df68666d6adcaaf436a91d855ff39fd7b9268394c4d4a
Aug 02 04:59:56.407 INFO running `"docker" "start" "-a" "371526b2d4dbfb427a0df68666d6adcaaf436a91d855ff39fd7b9268394c4d4a"`
Aug 02 04:59:57.600 INFO kablam!     Checking lopdf v0.15.2 (file:///source)
Aug 02 05:00:07.567 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:00:07.567 INFO kablam!  --> benches/datetime.rs:1:1
Aug 02 05:00:07.567 INFO kablam!   |
Aug 02 05:00:07.567 INFO kablam! 1 | #![feature(test)]
Aug 02 05:00:07.567 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 05:00:07.567 INFO kablam! 
Aug 02 05:00:07.568 INFO kablam! error: aborting due to previous error
Aug 02 05:00:07.568 INFO kablam! 
Aug 02 05:00:07.568 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:00:07.605 INFO kablam! error: Could not compile `lopdf`.
Aug 02 05:00:07.605 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:00:08.100 INFO kablam! error: build failed
Aug 02 05:00:08.102 INFO kablam! su: No module specific data is present
Aug 02 05:00:08.651 INFO running `"docker" "rm" "-f" "371526b2d4dbfb427a0df68666d6adcaaf436a91d855ff39fd7b9268394c4d4a"`
Aug 02 05:00:08.797 INFO blam! 371526b2d4dbfb427a0df68666d6adcaaf436a91d855ff39fd7b9268394c4d4a