Aug 01 20:04:18.380 INFO checking treeflection_derive-0.1.16 against 1.27.2 for lazy_static-1
Aug 01 20:04:18.380 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:04:18.380 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:04:18.380 INFO running `"docker" "create" "-v" "/tmp/crater.d0QEUCgCw4Jk:/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 01 20:04:18.562 INFO blam! d11e666b88bbdb763c7f7511aebd99e30b0378020335544f9437e8c36ffd6f60
Aug 01 20:04:18.565 INFO running `"docker" "start" "-a" "d11e666b88bbdb763c7f7511aebd99e30b0378020335544f9437e8c36ffd6f60"`
Aug 01 20:04:19.787 INFO kablam!     Checking itoa v0.4.2
Aug 01 20:04:19.788 INFO kablam!     Checking either v1.5.0
Aug 01 20:04:19.790 INFO kablam!     Checking dtoa v0.4.3
Aug 01 20:04:19.791 INFO kablam!     Checking matches v0.1.7
Aug 01 20:04:19.797 INFO kablam!     Checking serde v1.0.70
Aug 01 20:04:19.831 INFO kablam!    Compiling treeflection_derive v0.1.16 (file:///source)
Aug 01 20:04:22.045 INFO kablam!     Checking itertools v0.6.5
Aug 01 20:04:48.674 INFO kablam!     Checking serde_json v1.0.24
Aug 01 20:04:52.507 INFO kablam!     Checking treeflection v0.1.31
Aug 01 20:04:56.660 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:04:56.660 INFO kablam!  --> tests/test.rs:1:1
Aug 01 20:04:56.660 INFO kablam!   |
Aug 01 20:04:56.660 INFO kablam! 1 | #![feature(drop_types_in_const)]
Aug 01 20:04:56.660 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 20:04:56.660 INFO kablam! 
Aug 01 20:04:56.665 INFO kablam! error: aborting due to previous error
Aug 01 20:04:56.665 INFO kablam! 
Aug 01 20:04:56.665 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:04:56.678 INFO kablam! error: Could not compile `treeflection_derive`.
Aug 01 20:04:56.678 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:04:56.920 INFO kablam! error: build failed
Aug 01 20:04:56.921 INFO kablam! su: No module specific data is present
Aug 01 20:04:57.785 INFO running `"docker" "rm" "-f" "d11e666b88bbdb763c7f7511aebd99e30b0378020335544f9437e8c36ffd6f60"`
Aug 01 20:04:57.872 INFO blam! d11e666b88bbdb763c7f7511aebd99e30b0378020335544f9437e8c36ffd6f60