Aug 02 11:18:38.199 INFO checking docker4rs-0.0.1 against 1.27.2 for lazy_static-1
Aug 02 11:18:38.199 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:18:38.199 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:18:38.199 INFO running `"docker" "create" "-v" "/tmp/crater.7dTPGOJBMVJA:/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 11:18:38.531 INFO blam! e5595ca00a52ce7bfbfca00110eb882acb13899a45b826496dec6cd85f3f3e6a
Aug 02 11:18:38.534 INFO running `"docker" "start" "-a" "e5595ca00a52ce7bfbfca00110eb882acb13899a45b826496dec6cd85f3f3e6a"`
Aug 02 11:18:39.604 INFO kablam!     Checking docker4rs v0.0.1 (file:///source)
Aug 02 11:18:41.369 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 11:18:41.369 INFO kablam!  --> src/lib.rs:2:1
Aug 02 11:18:41.370 INFO kablam!   |
Aug 02 11:18:41.370 INFO kablam! 2 | #![feature(proc_macro, plugin, custom_derive)]
Aug 02 11:18:41.370 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:18:41.370 INFO kablam! 
Aug 02 11:18:41.370 INFO kablam! error: aborting due to previous error
Aug 02 11:18:41.370 INFO kablam! 
Aug 02 11:18:41.370 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 11:18:41.381 INFO kablam! error: Could not compile `docker4rs`.
Aug 02 11:18:41.381 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 11:18:41.645 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 11:18:41.645 INFO kablam!  --> src/lib.rs:2:1
Aug 02 11:18:41.645 INFO kablam!   |
Aug 02 11:18:41.645 INFO kablam! 2 | #![feature(proc_macro, plugin, custom_derive)]
Aug 02 11:18:41.645 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:18:41.645 INFO kablam! 
Aug 02 11:18:41.646 INFO kablam! error: aborting due to previous error
Aug 02 11:18:41.647 INFO kablam! 
Aug 02 11:18:41.647 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 11:18:41.672 INFO kablam! error: Could not compile `docker4rs`.
Aug 02 11:18:41.672 INFO kablam! 
Aug 02 11:18:41.672 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 11:18:41.672 INFO kablam! su: No module specific data is present
Aug 02 11:18:42.810 INFO running `"docker" "rm" "-f" "e5595ca00a52ce7bfbfca00110eb882acb13899a45b826496dec6cd85f3f3e6a"`
Aug 02 11:18:42.983 INFO blam! e5595ca00a52ce7bfbfca00110eb882acb13899a45b826496dec6cd85f3f3e6a