Aug 02 15:07:48.945 INFO checking almost_ord-0.2.2 against 1.27.2 for lazy_static-1
Aug 02 15:07:48.945 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 15:07:48.945 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 15:07:48.945 INFO running `"docker" "create" "-v" "/tmp/crater.fhwBLCqqfuai:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/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 15:07:49.203 INFO blam! 5aa39bd87a2e92935363e02ae053b0638497954dbc804300a8461348149e7e7f
Aug 02 15:07:49.212 INFO running `"docker" "start" "-a" "5aa39bd87a2e92935363e02ae053b0638497954dbc804300a8461348149e7e7f"`
Aug 02 15:07:50.766 INFO kablam!     Checking almost_ord v0.2.2 (file:///source)
Aug 02 15:07:52.149 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 15:07:52.149 INFO kablam!  --> tests/lib.rs:1:1
Aug 02 15:07:52.149 INFO kablam!   |
Aug 02 15:07:52.150 INFO kablam! 1 | #![feature(iter_cmp)]
Aug 02 15:07:52.150 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Aug 02 15:07:52.150 INFO kablam! 
Aug 02 15:07:52.150 INFO kablam! error: aborting due to previous error
Aug 02 15:07:52.150 INFO kablam! 
Aug 02 15:07:52.150 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 15:07:52.159 INFO kablam! error: Could not compile `almost_ord`.
Aug 02 15:07:52.159 INFO kablam! 
Aug 02 15:07:52.159 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 15:07:52.160 INFO kablam! su: No module specific data is present
Aug 02 15:07:52.938 INFO running `"docker" "rm" "-f" "5aa39bd87a2e92935363e02ae053b0638497954dbc804300a8461348149e7e7f"`
Aug 02 15:07:53.094 INFO blam! 5aa39bd87a2e92935363e02ae053b0638497954dbc804300a8461348149e7e7f