Aug 02 11:17:58.864 INFO checking docopt_macros-0.8.1 against 1.27.2 for lazy_static-1
Aug 02 11:17:58.864 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:17:58.864 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:17:58.864 INFO running `"docker" "create" "-v" "/tmp/crater.4VBuHSbHlxzJ:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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 11:17:59.146 INFO blam! a4d0a9f3636f0ba22af050ac1c9eeeb0eb5acb11d1c47ec27f096760d9ab51d7
Aug 02 11:17:59.153 INFO running `"docker" "start" "-a" "a4d0a9f3636f0ba22af050ac1c9eeeb0eb5acb11d1c47ec27f096760d9ab51d7"`
Aug 02 11:18:00.779 INFO kablam!     Checking strsim v0.6.0
Aug 02 11:18:00.781 INFO kablam!    Compiling docopt v0.8.3
Aug 02 11:18:07.903 INFO kablam!     Checking docopt_macros v0.8.1 (file:///source)
Aug 02 11:18:20.388 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 11:18:20.388 INFO kablam!  --> src/macro.rs:4:1
Aug 02 11:18:20.388 INFO kablam!   |
Aug 02 11:18:20.388 INFO kablam! 4 | #![feature(plugin_registrar, quote, rustc_private)]
Aug 02 11:18:20.388 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:18:20.388 INFO kablam! 
Aug 02 11:18:20.388 INFO kablam! error: aborting due to previous error
Aug 02 11:18:20.389 INFO kablam! 
Aug 02 11:18:20.389 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 11:18:20.433 INFO kablam! error: Could not compile `docopt_macros`.
Aug 02 11:18:20.434 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 11:18:20.503 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 11:18:20.503 INFO kablam!  --> src/macro.rs:4:1
Aug 02 11:18:20.503 INFO kablam!   |
Aug 02 11:18:20.503 INFO kablam! 4 | #![feature(plugin_registrar, quote, rustc_private)]
Aug 02 11:18:20.503 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:18:20.503 INFO kablam! 
Aug 02 11:18:20.504 INFO kablam! error: aborting due to previous error
Aug 02 11:18:20.504 INFO kablam! 
Aug 02 11:18:20.504 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 11:18:20.530 INFO kablam! error: Could not compile `docopt_macros`.
Aug 02 11:18:20.531 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 11:18:20.586 INFO kablam! error: build failed
Aug 02 11:18:20.588 INFO kablam! su: No module specific data is present
Aug 02 11:18:21.319 INFO running `"docker" "rm" "-f" "a4d0a9f3636f0ba22af050ac1c9eeeb0eb5acb11d1c47ec27f096760d9ab51d7"`
Aug 02 11:18:21.508 INFO blam! a4d0a9f3636f0ba22af050ac1c9eeeb0eb5acb11d1c47ec27f096760d9ab51d7