Aug 02 10:28:48.257 INFO checking expression-0.3.3 against 1.27.2 for lazy_static-1
Aug 02 10:28:48.258 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:28:48.258 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:28:48.258 INFO running `"docker" "create" "-v" "/tmp/crater.lkczmEYmchyG:/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 10:28:48.502 INFO blam! 388dc4c5e0cc5ab9c662fd145723e3fa4d901bc44d460d141d3d509cae732850
Aug 02 10:28:48.505 INFO running `"docker" "start" "-a" "388dc4c5e0cc5ab9c662fd145723e3fa4d901bc44d460d141d3d509cae732850"`
Aug 02 10:28:49.346 INFO kablam!     Checking expression v0.3.3 (file:///source)
Aug 02 10:28:49.777 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:28:49.777 INFO kablam!  --> src/lib.rs:1:1
Aug 02 10:28:49.777 INFO kablam!   |
Aug 02 10:28:49.777 INFO kablam! 1 | #![feature(box_syntax)]
Aug 02 10:28:49.777 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 10:28:49.777 INFO kablam! 
Aug 02 10:28:49.779 INFO kablam! error: aborting due to previous error
Aug 02 10:28:49.779 INFO kablam! 
Aug 02 10:28:49.779 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:28:49.786 INFO kablam! error: Could not compile `expression`.
Aug 02 10:28:49.787 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:28:49.868 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:28:49.868 INFO kablam!  --> src/lib.rs:1:1
Aug 02 10:28:49.868 INFO kablam!   |
Aug 02 10:28:49.868 INFO kablam! 1 | #![feature(box_syntax)]
Aug 02 10:28:49.868 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 10:28:49.869 INFO kablam! 
Aug 02 10:28:49.869 INFO kablam! error: aborting due to previous error
Aug 02 10:28:49.869 INFO kablam! 
Aug 02 10:28:49.869 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:28:49.874 INFO kablam! error: Could not compile `expression`.
Aug 02 10:28:49.874 INFO kablam! 
Aug 02 10:28:49.874 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 10:28:49.876 INFO kablam! su: No module specific data is present
Aug 02 10:28:50.421 INFO running `"docker" "rm" "-f" "388dc4c5e0cc5ab9c662fd145723e3fa4d901bc44d460d141d3d509cae732850"`
Aug 02 10:28:50.593 INFO blam! 388dc4c5e0cc5ab9c662fd145723e3fa4d901bc44d460d141d3d509cae732850