Aug 02 10:02:02.266 INFO checking flexi_logger-0.6.14 against 1.27.2+tmplazy for lazy_static-1
Aug 02 10:02:02.266 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:02:02.266 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:02:02.266 INFO running `"docker" "create" "-v" "/tmp/crater.tCy6vg74NEvG:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2+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 10:02:02.515 INFO blam! 323778e278c032d895cef78b3242bb64f719c8b34724a87ed9bd3a3e0dd4c76d
Aug 02 10:02:02.518 INFO running `"docker" "start" "-a" "323778e278c032d895cef78b3242bb64f719c8b34724a87ed9bd3a3e0dd4c76d"`
Aug 02 10:02:03.989 INFO kablam!     Checking flexi_logger v0.6.14 (file:///source)
Aug 02 10:02:08.249 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:02:08.249 INFO kablam!  --> tests/bench_standard.rs:1:1
Aug 02 10:02:08.249 INFO kablam!   |
Aug 02 10:02:08.249 INFO kablam! 1 | #![feature(test)]
Aug 02 10:02:08.249 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 10:02:08.254 INFO kablam! 
Aug 02 10:02:08.255 INFO kablam! error: aborting due to previous error
Aug 02 10:02:08.256 INFO kablam! 
Aug 02 10:02:08.256 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:02:08.328 INFO kablam! error: Could not compile `flexi_logger`.
Aug 02 10:02:08.329 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:02:10.780 INFO kablam! error: build failed
Aug 02 10:02:10.783 INFO kablam! su: No module specific data is present
Aug 02 10:02:11.363 INFO running `"docker" "rm" "-f" "323778e278c032d895cef78b3242bb64f719c8b34724a87ed9bd3a3e0dd4c76d"`
Aug 02 10:02:11.544 INFO blam! 323778e278c032d895cef78b3242bb64f719c8b34724a87ed9bd3a3e0dd4c76d