Aug 02 06:39:40.910 INFO checking intercom-0.2.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 06:39:40.910 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:39:40.910 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:39:40.910 INFO running `"docker" "create" "-v" "/tmp/crater.esSK1t7lJR9v:/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 06:39:41.279 INFO blam! defdb8a7f23f6218b50110f6e8b64dd01861dd940b078b0283a2f26ce09d1120
Aug 02 06:39:41.281 INFO running `"docker" "start" "-a" "defdb8a7f23f6218b50110f6e8b64dd01861dd940b078b0283a2f26ce09d1120"`
Aug 02 06:39:43.397 INFO kablam!    Compiling sha1 v0.3.0
Aug 02 06:39:44.687 INFO kablam!    Compiling intercom-common v0.2.0
Aug 02 06:39:53.124 INFO kablam!    Compiling intercom-attributes v0.2.0
Aug 02 06:39:54.656 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:39:54.656 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/intercom-attributes-0.2.0/src/lib.rs:1:1
Aug 02 06:39:54.656 INFO kablam!   |
Aug 02 06:39:54.656 INFO kablam! 1 | #![feature(proc_macro)]
Aug 02 06:39:54.656 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:39:54.656 INFO kablam! 
Aug 02 06:39:54.656 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:39:54.656 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/intercom-attributes-0.2.0/src/lib.rs:3:1
Aug 02 06:39:54.656 INFO kablam!   |
Aug 02 06:39:54.656 INFO kablam! 3 | #![feature(catch_expr)]
Aug 02 06:39:54.656 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:39:54.656 INFO kablam! 
Aug 02 06:39:54.657 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:39:54.657 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/intercom-attributes-0.2.0/src/lib.rs:4:1
Aug 02 06:39:54.657 INFO kablam!   |
Aug 02 06:39:54.657 INFO kablam! 4 | #![feature(type_ascription)]
Aug 02 06:39:54.657 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:39:54.657 INFO kablam! 
Aug 02 06:39:54.658 INFO kablam! error: aborting due to 3 previous errors
Aug 02 06:39:54.658 INFO kablam! 
Aug 02 06:39:54.658 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 06:39:54.679 INFO kablam! error: Could not compile `intercom-attributes`.
Aug 02 06:39:54.679 INFO kablam! 
Aug 02 06:39:54.679 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 06:39:54.681 INFO kablam! su: No module specific data is present
Aug 02 06:39:55.875 INFO running `"docker" "rm" "-f" "defdb8a7f23f6218b50110f6e8b64dd01861dd940b078b0283a2f26ce09d1120"`
Aug 02 06:39:56.064 INFO blam! defdb8a7f23f6218b50110f6e8b64dd01861dd940b078b0283a2f26ce09d1120