Sep 21 03:43:17.070 INFO checking rx_gtk-0.1.1 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 03:43:17.070 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 03:43:17.070 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-6/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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" "-e" "USER_ID=1000" "-e" "CMD=cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 03:43:17.278 INFO blam! da783e04207955843e3aa9a522560486403f93a9807ef6dae942f8e4814d4562
Sep 21 03:43:17.280 INFO running `"docker" "start" "-a" "da783e04207955843e3aa9a522560486403f93a9807ef6dae942f8e4814d4562"`
Sep 21 03:43:18.338 INFO kablam! usermod: no changes
Sep 21 03:43:18.485 INFO kablam!    Compiling gio v0.5.0
Sep 21 03:43:18.498 INFO kablam!    Compiling cairo-rs v0.5.0
Sep 21 03:43:18.502 INFO kablam!    Compiling gdk-pixbuf v0.5.0
Sep 21 03:43:18.518 INFO kablam!    Compiling gdk v0.9.0
Sep 21 03:43:18.518 INFO kablam!    Compiling gtk v0.5.0
Sep 21 03:43:18.518 INFO kablam!     Checking rxrs v0.1.0-alpha3
Sep 21 03:43:18.518 INFO kablam!    Compiling glib-sys v0.7.0
Sep 21 03:43:18.518 INFO kablam!    Compiling gobject-sys v0.7.0
Sep 21 03:43:21.350 INFO kablam!    Compiling gio-sys v0.7.0
Sep 21 03:43:21.442 INFO kablam!    Compiling cairo-sys-rs v0.7.0
Sep 21 03:43:21.698 INFO kablam!    Compiling gdk-pixbuf-sys v0.7.0
Sep 21 03:43:21.854 INFO kablam!    Compiling pango-sys v0.7.0
Sep 21 03:43:22.205 INFO kablam!    Compiling gdk-sys v0.7.0
Sep 21 03:43:22.463 INFO kablam!    Compiling gtk-sys v0.7.0
Sep 21 03:43:23.623 INFO kablam!    Compiling atk-sys v0.7.0
Sep 21 03:43:25.794 INFO kablam! error[E0635]: unknown feature `nested_impl_trait`
Sep 21 03:43:25.794 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rxrs-0.1.0-alpha3/src/lib.rs:12:12
Sep 21 03:43:25.794 INFO kablam!    |
Sep 21 03:43:25.794 INFO kablam! 12 | #![feature(nested_impl_trait)]
Sep 21 03:43:25.794 INFO kablam!    |            ^^^^^^^^^^^^^^^^^
Sep 21 03:43:25.794 INFO kablam! 
Sep 21 03:43:25.994 INFO kablam! error: aborting due to previous error
Sep 21 03:43:26.002 INFO kablam! 
Sep 21 03:43:26.002 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 21 03:43:26.023 INFO kablam! error: Could not compile `rxrs`.
Sep 21 03:43:26.023 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 21 03:43:26.294 INFO kablam! error: build failed
Sep 21 03:43:26.298 INFO kablam! su: No module specific data is present
Sep 21 03:43:27.242 INFO running `"docker" "rm" "-f" "da783e04207955843e3aa9a522560486403f93a9807ef6dae942f8e4814d4562"`
Sep 21 03:43:27.379 INFO blam! da783e04207955843e3aa9a522560486403f93a9807ef6dae942f8e4814d4562