Aug 02 03:58:48.055 INFO checking munkres-0.4.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 03:58:48.055 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 03:58:48.055 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 03:58:48.055 INFO running `"docker" "create" "-v" "/tmp/crater.stV1JxA28DF3:/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 02 03:58:48.257 INFO blam! d59d31b7ad80f0bdbdc791e9a2735acb137c7b9a721f0e720e0223f317038af1
Aug 02 03:58:48.259 INFO running `"docker" "start" "-a" "d59d31b7ad80f0bdbdc791e9a2735acb137c7b9a721f0e720e0223f317038af1"`
Aug 02 03:58:49.944 INFO kablam!     Checking ndarray v0.11.2
Aug 02 03:59:05.514 INFO kablam!     Checking munkres v0.4.0 (file:///source)
Aug 02 03:59:06.111 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 03:59:06.111 INFO kablam!  --> src/lib.rs:1:19
Aug 02 03:59:06.111 INFO kablam!   |
Aug 02 03:59:06.111 INFO kablam! 1 | #![cfg_attr(test, feature(test))]
Aug 02 03:59:06.111 INFO kablam!   |                   ^^^^^^^^^^^^^^
Aug 02 03:59:06.111 INFO kablam! 
Aug 02 03:59:06.115 INFO kablam! error: aborting due to previous error
Aug 02 03:59:06.115 INFO kablam! 
Aug 02 03:59:06.115 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 03:59:06.124 INFO kablam! error: Could not compile `munkres`.
Aug 02 03:59:06.124 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 03:59:06.373 INFO kablam! error: build failed
Aug 02 03:59:06.374 INFO kablam! su: No module specific data is present
Aug 02 03:59:06.922 INFO running `"docker" "rm" "-f" "d59d31b7ad80f0bdbdc791e9a2735acb137c7b9a721f0e720e0223f317038af1"`
Aug 02 03:59:07.076 INFO blam! d59d31b7ad80f0bdbdc791e9a2735acb137c7b9a721f0e720e0223f317038af1