Aug 01 20:33:32.664 INFO checking tftp_server-0.0.2 against 1.27.2 for lazy_static-1
Aug 01 20:33:32.664 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:33:32.664 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:33:32.664 INFO running `"docker" "create" "-v" "/tmp/crater.o5m6TK9w8PDW:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2:/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 01 20:33:32.918 INFO blam! de7cc6fa18e25eaaa848056c39525b2873cebce55c00c8cc2e1ae19ce9697241
Aug 01 20:33:32.921 INFO running `"docker" "start" "-a" "de7cc6fa18e25eaaa848056c39525b2873cebce55c00c8cc2e1ae19ce9697241"`
Aug 01 20:33:34.151 INFO kablam!     Checking tftp_server v0.0.2 (file:///source)
Aug 01 20:33:35.199 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:33:35.199 INFO kablam!  --> src/lib.rs:1:1
Aug 01 20:33:35.199 INFO kablam!   |
Aug 01 20:33:35.199 INFO kablam! 1 | #![feature(question_mark)]
Aug 01 20:33:35.199 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:33:35.199 INFO kablam! 
Aug 01 20:33:35.202 INFO kablam! error: aborting due to previous error
Aug 01 20:33:35.202 INFO kablam! 
Aug 01 20:33:35.202 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:33:35.228 INFO kablam! error: Could not compile `tftp_server`.
Aug 01 20:33:35.228 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:33:35.308 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:33:35.308 INFO kablam!  --> src/lib.rs:1:1
Aug 01 20:33:35.308 INFO kablam!   |
Aug 01 20:33:35.308 INFO kablam! 1 | #![feature(question_mark)]
Aug 01 20:33:35.308 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:33:35.308 INFO kablam! 
Aug 01 20:33:35.310 INFO kablam! error: aborting due to previous error
Aug 01 20:33:35.311 INFO kablam! 
Aug 01 20:33:35.311 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:33:35.323 INFO kablam! error: Could not compile `tftp_server`.
Aug 01 20:33:35.323 INFO kablam! 
Aug 01 20:33:35.323 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 20:33:35.330 INFO kablam! su: No module specific data is present
Aug 01 20:33:35.834 INFO running `"docker" "rm" "-f" "de7cc6fa18e25eaaa848056c39525b2873cebce55c00c8cc2e1ae19ce9697241"`
Aug 01 20:33:35.989 INFO blam! de7cc6fa18e25eaaa848056c39525b2873cebce55c00c8cc2e1ae19ce9697241