Aug 02 11:18:36.077 INFO checking docker4rst-0.0.0 against 1.27.2 for lazy_static-1
Aug 02 11:18:36.077 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:18:36.077 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:18:36.077 INFO running `"docker" "create" "-v" "/tmp/crater.ndgNIoLeooZS:/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 11:18:36.310 INFO blam! 21779ff9f97eef126e38ac9e780f5ad0283750dcbea21a68d27802d7c3070ec9
Aug 02 11:18:36.313 INFO running `"docker" "start" "-a" "21779ff9f97eef126e38ac9e780f5ad0283750dcbea21a68d27802d7c3070ec9"`
Aug 02 11:18:37.578 INFO kablam!    Compiling serde_codegen v0.8.23
Aug 02 11:18:43.300 INFO kablam!    Compiling serde_derive v0.8.23
Aug 02 11:18:46.568 INFO kablam!     Checking docker4rst v0.0.0 (file:///source)
Aug 02 11:18:48.198 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 11:18:48.198 INFO kablam!  --> src/lib.rs:2:1
Aug 02 11:18:48.198 INFO kablam!   |
Aug 02 11:18:48.198 INFO kablam! 2 | #![feature(proc_macro, plugin, custom_derive)]
Aug 02 11:18:48.198 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:18:48.198 INFO kablam! 
Aug 02 11:18:48.199 INFO kablam! error: aborting due to previous error
Aug 02 11:18:48.199 INFO kablam! 
Aug 02 11:18:48.199 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 11:18:48.208 INFO kablam! error: Could not compile `docker4rst`.
Aug 02 11:18:48.209 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 11:18:48.575 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 11:18:48.575 INFO kablam!  --> src/lib.rs:2:1
Aug 02 11:18:48.575 INFO kablam!   |
Aug 02 11:18:48.575 INFO kablam! 2 | #![feature(proc_macro, plugin, custom_derive)]
Aug 02 11:18:48.575 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:18:48.576 INFO kablam! 
Aug 02 11:18:48.576 INFO kablam! error: aborting due to previous error
Aug 02 11:18:48.577 INFO kablam! 
Aug 02 11:18:48.577 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 11:18:48.595 INFO kablam! error: Could not compile `docker4rst`.
Aug 02 11:18:48.595 INFO kablam! 
Aug 02 11:18:48.595 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 11:18:48.597 INFO kablam! su: No module specific data is present
Aug 02 11:18:49.289 INFO running `"docker" "rm" "-f" "21779ff9f97eef126e38ac9e780f5ad0283750dcbea21a68d27802d7c3070ec9"`
Aug 02 11:18:49.417 INFO blam! 21779ff9f97eef126e38ac9e780f5ad0283750dcbea21a68d27802d7c3070ec9