Aug 02 11:18:33.977 INFO checking docker4rst-0.0.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 11:18:33.977 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:18:33.977 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:18:33.978 INFO running `"docker" "create" "-v" "/tmp/crater.zq7Qx8rwP9o2:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2+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 02 11:18:34.186 INFO blam! 1156bf9661f387cfb6233fb63c4776ddd1f23f05716890a1b30e283d0bd74caa
Aug 02 11:18:34.190 INFO running `"docker" "start" "-a" "1156bf9661f387cfb6233fb63c4776ddd1f23f05716890a1b30e283d0bd74caa"`
Aug 02 11:18:35.686 INFO kablam!     Checking docker4rst v0.0.0 (file:///source)
Aug 02 11:18:37.840 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 11:18:37.841 INFO kablam!  --> src/lib.rs:2:1
Aug 02 11:18:37.841 INFO kablam!   |
Aug 02 11:18:37.841 INFO kablam! 2 | #![feature(proc_macro, plugin, custom_derive)]
Aug 02 11:18:37.841 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:18:37.856 INFO kablam! 
Aug 02 11:18:37.857 INFO kablam! error: aborting due to previous error
Aug 02 11:18:37.857 INFO kablam! 
Aug 02 11:18:37.857 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 11:18:37.870 INFO kablam! error: Could not compile `docker4rst`.
Aug 02 11:18:37.870 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 11:18:38.049 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 11:18:38.049 INFO kablam!  --> src/lib.rs:2:1
Aug 02 11:18:38.049 INFO kablam!   |
Aug 02 11:18:38.049 INFO kablam! 2 | #![feature(proc_macro, plugin, custom_derive)]
Aug 02 11:18:38.049 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:18:38.060 INFO kablam! 
Aug 02 11:18:38.062 INFO kablam! error: aborting due to previous error
Aug 02 11:18:38.062 INFO kablam! 
Aug 02 11:18:38.062 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 11:18:38.088 INFO kablam! error: Could not compile `docker4rst`.
Aug 02 11:18:38.089 INFO kablam! 
Aug 02 11:18:38.089 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 11:18:38.091 INFO kablam! su: No module specific data is present
Aug 02 11:18:38.869 INFO running `"docker" "rm" "-f" "1156bf9661f387cfb6233fb63c4776ddd1f23f05716890a1b30e283d0bd74caa"`
Aug 02 11:18:39.019 INFO blam! 1156bf9661f387cfb6233fb63c4776ddd1f23f05716890a1b30e283d0bd74caa