Aug 02 10:28:45.554 INFO checking expression-num-0.1.0 against 1.27.2 for lazy_static-1
Aug 02 10:28:45.554 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:28:45.554 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:28:45.554 INFO running `"docker" "create" "-v" "/tmp/crater.85Fk5EVwUMyo:/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 10:28:45.783 INFO blam! 7cefee0ef8fe4f0dbd1b8604221a890e521ca1114169166a68d5150aa00f2143
Aug 02 10:28:45.786 INFO running `"docker" "start" "-a" "7cefee0ef8fe4f0dbd1b8604221a890e521ca1114169166a68d5150aa00f2143"`
Aug 02 10:28:46.977 INFO kablam!     Checking asexp v0.1.2
Aug 02 10:28:46.977 INFO kablam!     Checking expression v0.3.3
Aug 02 10:28:47.444 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:28:47.444 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/expression-0.3.3/src/lib.rs:1:1
Aug 02 10:28:47.444 INFO kablam!   |
Aug 02 10:28:47.444 INFO kablam! 1 | #![feature(box_syntax)]
Aug 02 10:28:47.444 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 10:28:47.444 INFO kablam! 
Aug 02 10:28:47.445 INFO kablam! error: aborting due to previous error
Aug 02 10:28:47.445 INFO kablam! 
Aug 02 10:28:47.445 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:28:47.451 INFO kablam! error: Could not compile `expression`.
Aug 02 10:28:47.451 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:28:47.523 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:28:47.523 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/asexp-0.1.2/src/lib.rs:1:1
Aug 02 10:28:47.523 INFO kablam!   |
Aug 02 10:28:47.523 INFO kablam! 1 | #![feature(str_char)]
Aug 02 10:28:47.523 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^
Aug 02 10:28:47.523 INFO kablam! 
Aug 02 10:28:47.525 INFO kablam! error: aborting due to previous error
Aug 02 10:28:47.525 INFO kablam! 
Aug 02 10:28:47.525 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 10:28:47.532 INFO kablam! error: Could not compile `asexp`.
Aug 02 10:28:47.532 INFO kablam! 
Aug 02 10:28:47.532 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 10:28:47.533 INFO kablam! su: No module specific data is present
Aug 02 10:28:48.090 INFO running `"docker" "rm" "-f" "7cefee0ef8fe4f0dbd1b8604221a890e521ca1114169166a68d5150aa00f2143"`
Aug 02 10:28:48.254 INFO blam! 7cefee0ef8fe4f0dbd1b8604221a890e521ca1114169166a68d5150aa00f2143