Aug 02 06:39:34.327 INFO checking intercom-attributes-0.2.0 against 1.27.2 for lazy_static-1
Aug 02 06:39:34.327 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:39:34.327 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:39:34.327 INFO running `"docker" "create" "-v" "/tmp/crater.1d0JLlYJOq1z:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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 06:39:34.539 INFO blam! da97d4e709cfe4693dae1f246a10fcf1db22625b7a16f60cbffdfa60aaccd093
Aug 02 06:39:34.542 INFO running `"docker" "start" "-a" "da97d4e709cfe4693dae1f246a10fcf1db22625b7a16f60cbffdfa60aaccd093"`
Aug 02 06:39:37.971 INFO kablam!     Checking semver-parser v0.7.0
Aug 02 06:39:37.972 INFO kablam!    Compiling sha1 v0.3.0
Aug 02 06:39:37.976 INFO kablam!    Compiling rustfmt-nightly v0.2.17
Aug 02 06:39:37.978 INFO kablam!     Checking unicode-segmentation v1.2.1
Aug 02 06:39:37.981 INFO kablam!     Checking term v0.4.6
Aug 02 06:39:37.982 INFO kablam!     Checking difference v1.0.0
Aug 02 06:39:37.986 INFO kablam!     Checking toml v0.4.6
Aug 02 06:39:40.305 INFO kablam!     Checking strings v0.1.1
Aug 02 06:39:40.349 INFO kablam!    Compiling derive-new v0.5.5
Aug 02 06:39:40.349 INFO kablam!     Checking intercom-common v0.2.0
Aug 02 06:39:40.383 INFO kablam!     Checking env_logger v0.4.3
Aug 02 06:39:40.406 INFO kablam!     Checking semver v0.8.0
Aug 02 06:39:42.041 INFO kablam!     Checking error-chain v0.11.0
Aug 02 06:39:47.074 INFO kablam!     Checking cargo_metadata v0.3.3
Aug 02 06:39:50.286 INFO kablam!     Checking intercom-attributes v0.2.0 (file:///source)
Aug 02 06:39:54.804 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:39:54.804 INFO kablam!  --> src/lib.rs:1:1
Aug 02 06:39:54.804 INFO kablam!   |
Aug 02 06:39:54.804 INFO kablam! 1 | #![feature(proc_macro)]
Aug 02 06:39:54.804 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:39:54.812 INFO kablam! 
Aug 02 06:39:54.812 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:39:54.812 INFO kablam!  --> src/lib.rs:3:1
Aug 02 06:39:54.812 INFO kablam!   |
Aug 02 06:39:54.812 INFO kablam! 3 | #![feature(catch_expr)]
Aug 02 06:39:54.812 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:39:54.812 INFO kablam! 
Aug 02 06:39:54.818 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:39:54.818 INFO kablam!  --> src/lib.rs:4:1
Aug 02 06:39:54.818 INFO kablam!   |
Aug 02 06:39:54.818 INFO kablam! 4 | #![feature(type_ascription)]
Aug 02 06:39:54.818 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 06:39:54.818 INFO kablam! 
Aug 02 06:39:54.838 INFO kablam! error: aborting due to 3 previous errors
Aug 02 06:39:54.838 INFO kablam! 
Aug 02 06:39:54.838 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 06:39:54.849 INFO kablam! error: Could not compile `intercom-attributes`.
Aug 02 06:39:54.849 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 06:39:57.616 INFO kablam! error: build failed
Aug 02 06:39:57.618 INFO kablam! su: No module specific data is present
Aug 02 06:39:58.820 INFO running `"docker" "rm" "-f" "da97d4e709cfe4693dae1f246a10fcf1db22625b7a16f60cbffdfa60aaccd093"`
Aug 02 06:39:58.999 INFO blam! da97d4e709cfe4693dae1f246a10fcf1db22625b7a16f60cbffdfa60aaccd093