Aug 01 20:33:32.157 INFO checking tftp_server-0.0.2 against 1.27.2+tmplazy for lazy_static-1
Aug 01 20:33:32.157 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:33:32.157 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:33:32.157 INFO running `"docker" "create" "-v" "/tmp/crater.HuN8oz8ocwz2:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2+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 01 20:33:32.392 INFO blam! 3cd17bd3af1cb87d77acc1d4da60c29e1b3f59f993b426c5a008897daee458b0
Aug 01 20:33:32.395 INFO running `"docker" "start" "-a" "3cd17bd3af1cb87d77acc1d4da60c29e1b3f59f993b426c5a008897daee458b0"`
Aug 01 20:33:33.762 INFO kablam!     Checking tftp_server v0.0.2 (file:///source)
Aug 01 20:33:34.726 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:33:34.726 INFO kablam!  --> src/lib.rs:1:1
Aug 01 20:33:34.726 INFO kablam!   |
Aug 01 20:33:34.726 INFO kablam! 1 | #![feature(question_mark)]
Aug 01 20:33:34.726 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:33:34.726 INFO kablam! 
Aug 01 20:33:34.729 INFO kablam! error: aborting due to previous error
Aug 01 20:33:34.729 INFO kablam! 
Aug 01 20:33:34.729 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:33:34.753 INFO kablam! error: Could not compile `tftp_server`.
Aug 01 20:33:34.753 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:33:34.823 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:33:34.824 INFO kablam!  --> src/lib.rs:1:1
Aug 01 20:33:34.824 INFO kablam!   |
Aug 01 20:33:34.824 INFO kablam! 1 | #![feature(question_mark)]
Aug 01 20:33:34.824 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:33:34.824 INFO kablam! 
Aug 01 20:33:34.826 INFO kablam! error: aborting due to previous error
Aug 01 20:33:34.826 INFO kablam! 
Aug 01 20:33:34.826 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:33:34.846 INFO kablam! error: Could not compile `tftp_server`.
Aug 01 20:33:34.846 INFO kablam! 
Aug 01 20:33:34.846 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 20:33:34.848 INFO kablam! su: No module specific data is present
Aug 01 20:33:35.373 INFO running `"docker" "rm" "-f" "3cd17bd3af1cb87d77acc1d4da60c29e1b3f59f993b426c5a008897daee458b0"`
Aug 01 20:33:35.549 INFO blam! 3cd17bd3af1cb87d77acc1d4da60c29e1b3f59f993b426c5a008897daee458b0