Aug 02 14:03:34.790 INFO checking bitfield-register-macro-0.2.1 against 1.27.2 for lazy_static-1
Aug 02 14:03:34.790 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:03:34.790 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 14:03:34.791 INFO running `"docker" "create" "-v" "/tmp/crater.NbhFHZryMQbA:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 14:03:35.030 INFO blam! f9bb7bac838cef055ae7d849efe0477b10b12b48d8f4b153063fbb08f3487247
Aug 02 14:03:35.033 INFO running `"docker" "start" "-a" "f9bb7bac838cef055ae7d849efe0477b10b12b48d8f4b153063fbb08f3487247"`
Aug 02 14:03:36.071 INFO kablam!     Checking bitfield-register-macro v0.2.1 (file:///source)
Aug 02 14:03:38.799 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:03:38.799 INFO kablam!  --> src/lib.rs:1:1
Aug 02 14:03:38.799 INFO kablam!   |
Aug 02 14:03:38.799 INFO kablam! 1 | #![feature(proc_macro)]
Aug 02 14:03:38.799 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 14:03:38.799 INFO kablam! 
Aug 02 14:03:38.800 INFO kablam! error: aborting due to previous error
Aug 02 14:03:38.800 INFO kablam! 
Aug 02 14:03:38.800 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:03:38.810 INFO kablam! error: Could not compile `bitfield-register-macro`.
Aug 02 14:03:38.810 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 14:03:38.857 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 14:03:38.857 INFO kablam!  --> src/lib.rs:1:1
Aug 02 14:03:38.857 INFO kablam!   |
Aug 02 14:03:38.857 INFO kablam! 1 | #![feature(proc_macro)]
Aug 02 14:03:38.857 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 14:03:38.857 INFO kablam! 
Aug 02 14:03:38.864 INFO kablam! error: aborting due to previous error
Aug 02 14:03:38.865 INFO kablam! 
Aug 02 14:03:38.865 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 14:03:38.876 INFO kablam! error: Could not compile `bitfield-register-macro`.
Aug 02 14:03:38.877 INFO kablam! 
Aug 02 14:03:38.877 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 14:03:38.878 INFO kablam! su: No module specific data is present
Aug 02 14:03:39.474 INFO running `"docker" "rm" "-f" "f9bb7bac838cef055ae7d849efe0477b10b12b48d8f4b153063fbb08f3487247"`
Aug 02 14:03:39.630 INFO blam! f9bb7bac838cef055ae7d849efe0477b10b12b48d8f4b153063fbb08f3487247