Aug 02 09:59:33.404 INFO checking floyd-warshall-0.0.3 against 1.27.2+tmplazy for lazy_static-1
Aug 02 09:59:33.404 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:59:33.404 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:59:33.404 INFO running `"docker" "create" "-v" "/tmp/crater.e5Xrh8evnsgQ:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2+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 09:59:33.607 INFO blam! c23ab213c5795ab4e68c7b0a236d02b3dd839b680a00baf2fa75889f5254a871
Aug 02 09:59:33.610 INFO running `"docker" "start" "-a" "c23ab213c5795ab4e68c7b0a236d02b3dd839b680a00baf2fa75889f5254a871"`
Aug 02 09:59:36.090 INFO kablam!     Checking text_io v0.1.7
Aug 02 09:59:36.091 INFO kablam!     Checking floyd-warshall v0.0.3 (file:///source)
Aug 02 09:59:36.438 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 09:59:36.439 INFO kablam!  --> src/lib.rs:4:1
Aug 02 09:59:36.439 INFO kablam!   |
Aug 02 09:59:36.439 INFO kablam! 4 | #![feature(conservative_impl_trait)]
Aug 02 09:59:36.439 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 09:59:36.439 INFO kablam! 
Aug 02 09:59:36.439 INFO kablam! error: aborting due to previous error
Aug 02 09:59:36.439 INFO kablam! 
Aug 02 09:59:36.439 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 09:59:36.444 INFO kablam! error: Could not compile `floyd-warshall`.
Aug 02 09:59:36.444 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 09:59:36.543 INFO kablam! error: build failed
Aug 02 09:59:36.544 INFO kablam! su: No module specific data is present
Aug 02 09:59:37.884 INFO running `"docker" "rm" "-f" "c23ab213c5795ab4e68c7b0a236d02b3dd839b680a00baf2fa75889f5254a871"`
Aug 02 09:59:37.969 INFO blam! c23ab213c5795ab4e68c7b0a236d02b3dd839b680a00baf2fa75889f5254a871