Sep 10 10:27:51.836 INFO checking rx_gtk-0.1.1 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 10:27:51.836 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 10:27:51.836 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-6/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 10:27:52.050 INFO blam! 4ea0c499271a1e851028988f540fd5dcbb0d91b67a1033fff7f1340409da8285
Sep 10 10:27:52.052 INFO running `"docker" "start" "-a" "4ea0c499271a1e851028988f540fd5dcbb0d91b67a1033fff7f1340409da8285"`
Sep 10 10:27:53.417 INFO kablam! usermod: no changes
Sep 10 10:27:53.611 INFO kablam!    Compiling gio v0.5.0
Sep 10 10:27:53.612 INFO kablam!    Compiling cairo-rs v0.5.0
Sep 10 10:27:53.619 INFO kablam!    Compiling gdk-pixbuf v0.5.0
Sep 10 10:27:53.621 INFO kablam!     Checking fragile v0.3.0
Sep 10 10:27:53.622 INFO kablam!    Compiling gdk v0.9.0
Sep 10 10:27:53.623 INFO kablam!    Compiling gtk v0.5.0
Sep 10 10:27:53.624 INFO kablam!     Checking rxrs v0.1.0-alpha3
Sep 10 10:27:53.626 INFO kablam!    Compiling glib-sys v0.7.0
Sep 10 10:27:55.190 INFO kablam!    Compiling gobject-sys v0.7.0
Sep 10 10:27:55.371 INFO kablam!    Compiling gio-sys v0.7.0
Sep 10 10:27:55.398 INFO kablam!    Compiling cairo-sys-rs v0.7.0
Sep 10 10:27:55.454 INFO kablam!    Compiling gdk-pixbuf-sys v0.7.0
Sep 10 10:27:55.506 INFO kablam!    Compiling pango-sys v0.7.0
Sep 10 10:27:55.980 INFO kablam!    Compiling atk-sys v0.7.0
Sep 10 10:27:56.010 INFO kablam!    Compiling gdk-sys v0.7.0
Sep 10 10:27:57.658 INFO kablam!    Compiling gtk-sys v0.7.0
Sep 10 10:27:59.082 INFO kablam! error[E0635]: unknown feature `nested_impl_trait`
Sep 10 10:27:59.082 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rxrs-0.1.0-alpha3/src/lib.rs:12:12
Sep 10 10:27:59.082 INFO kablam!    |
Sep 10 10:27:59.082 INFO kablam! 12 | #![feature(nested_impl_trait)]
Sep 10 10:27:59.082 INFO kablam!    |            ^^^^^^^^^^^^^^^^^
Sep 10 10:27:59.082 INFO kablam! 
Sep 10 10:27:59.082 INFO kablam! error: aborting due to previous error
Sep 10 10:27:59.082 INFO kablam! 
Sep 10 10:27:59.082 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 10 10:27:59.088 INFO kablam! error: Could not compile `rxrs`.
Sep 10 10:27:59.088 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 10:28:00.106 INFO kablam! error: build failed
Sep 10 10:28:00.107 INFO kablam! su: No module specific data is present
Sep 10 10:28:00.874 INFO running `"docker" "rm" "-f" "4ea0c499271a1e851028988f540fd5dcbb0d91b67a1033fff7f1340409da8285"`
Sep 10 10:28:00.966 INFO blam! 4ea0c499271a1e851028988f540fd5dcbb0d91b67a1033fff7f1340409da8285