Aug 01 20:04:18.274 INFO checking treeflection_derive-0.1.16 against 1.27.2+tmplazy for lazy_static-1
Aug 01 20:04:18.274 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:04:18.274 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:04:18.274 INFO running `"docker" "create" "-v" "/tmp/crater.KJbV5Xkh8RVg:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2+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 20:04:18.487 INFO blam! 29c8ece06dcd69c2873b7a30cd008dc4698a1fe506978e3680b9b13c7fd1a344
Aug 01 20:04:18.495 INFO running `"docker" "start" "-a" "29c8ece06dcd69c2873b7a30cd008dc4698a1fe506978e3680b9b13c7fd1a344"`
Aug 01 20:04:19.820 INFO kablam!     Checking either v1.5.0
Aug 01 20:04:19.826 INFO kablam!     Checking treeflection_derive v0.1.16 (file:///source)
Aug 01 20:04:20.841 INFO kablam!     Checking itertools v0.6.5
Aug 01 20:04:30.216 INFO kablam!     Checking treeflection v0.1.31
Aug 01 20:04:35.476 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:04:35.476 INFO kablam!  --> tests/test.rs:1:1
Aug 01 20:04:35.476 INFO kablam!   |
Aug 01 20:04:35.476 INFO kablam! 1 | #![feature(drop_types_in_const)]
Aug 01 20:04:35.476 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:04:35.476 INFO kablam! 
Aug 01 20:04:35.483 INFO kablam! error: aborting due to previous error
Aug 01 20:04:35.483 INFO kablam! 
Aug 01 20:04:35.483 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:04:35.494 INFO kablam! error: Could not compile `treeflection_derive`.
Aug 01 20:04:35.494 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:04:35.974 INFO kablam! error: build failed
Aug 01 20:04:35.977 INFO kablam! su: No module specific data is present
Aug 01 20:04:36.546 INFO running `"docker" "rm" "-f" "29c8ece06dcd69c2873b7a30cd008dc4698a1fe506978e3680b9b13c7fd1a344"`
Aug 01 20:04:36.661 INFO blam! 29c8ece06dcd69c2873b7a30cd008dc4698a1fe506978e3680b9b13c7fd1a344