Sep 06 05:24:19.278 INFO checking ia-0.1.2 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 05:24:19.278 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 05:24:19.278 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-7/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 05:24:19.416 INFO blam! a64ab914c6715bf902ac02abef0d9c3ae768603f300daa1f01f37f2207425bc6
Sep 06 05:24:19.417 INFO running `"docker" "start" "-a" "a64ab914c6715bf902ac02abef0d9c3ae768603f300daa1f01f37f2207425bc6"`
Sep 06 05:24:20.522 INFO kablam! usermod: no changes
Sep 06 05:24:20.573 INFO kablam!     Checking ia v0.1.2 (file:///source)
Sep 06 05:24:20.854 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.854 INFO kablam!  --> src/executor.rs:7:51
Sep 06 05:24:20.854 INFO kablam!   |
Sep 06 05:24:20.854 INFO kablam! 7 |     fut: UnsafeCell<Box<Future<Item = (), Error = !> + 'static>>
Sep 06 05:24:20.854 INFO kablam!   |                                                   ^
Sep 06 05:24:20.854 INFO kablam!   |
Sep 06 05:24:20.854 INFO kablam!   = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.854 INFO kablam! 
Sep 06 05:24:20.854 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.854 INFO kablam!   --> src/executor.rs:11:47
Sep 06 05:24:20.854 INFO kablam!    |
Sep 06 05:24:20.854 INFO kablam! 11 |     fn new(fut: Box<Future<Item = (), Error = !> + 'static>) -> TaskInfo {
Sep 06 05:24:20.854 INFO kablam!    |                                               ^
Sep 06 05:24:20.854 INFO kablam!    |
Sep 06 05:24:20.854 INFO kablam!    = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.854 INFO kablam! 
Sep 06 05:24:20.854 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.854 INFO kablam!   --> src/executor.rs:17:64
Sep 06 05:24:20.855 INFO kablam!    |
Sep 06 05:24:20.855 INFO kablam! 17 |     fn get_future(&self) -> &mut Box<Future<Item = (), Error = !> + 'static> {
Sep 06 05:24:20.855 INFO kablam!    |                                                                ^
Sep 06 05:24:20.855 INFO kablam!    |
Sep 06 05:24:20.855 INFO kablam!    = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.855 INFO kablam! 
Sep 06 05:24:20.855 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.855 INFO kablam!   --> src/utils.rs:14:18
Sep 06 05:24:20.855 INFO kablam!    |
Sep 06 05:24:20.855 INFO kablam! 14 |     type Error = !;
Sep 06 05:24:20.855 INFO kablam!    |                  ^
Sep 06 05:24:20.855 INFO kablam!    |
Sep 06 05:24:20.855 INFO kablam!    = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.855 INFO kablam! 
Sep 06 05:24:20.855 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.855 INFO kablam!   --> src/utils.rs:18:28
Sep 06 05:24:20.855 INFO kablam!    |
Sep 06 05:24:20.855 INFO kablam! 18 |     ) -> Result<Async<()>, !> {
Sep 06 05:24:20.855 INFO kablam!    |                            ^
Sep 06 05:24:20.855 INFO kablam!    |
Sep 06 05:24:20.855 INFO kablam!    = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.855 INFO kablam! 
Sep 06 05:24:20.855 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.855 INFO kablam!   --> src/net.rs:18:18
Sep 06 05:24:20.855 INFO kablam!    |
Sep 06 05:24:20.855 INFO kablam! 18 |     type Error = !;
Sep 06 05:24:20.855 INFO kablam!    |                  ^
Sep 06 05:24:20.855 INFO kablam!    |
Sep 06 05:24:20.855 INFO kablam!    = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.855 INFO kablam! 
Sep 06 05:24:20.855 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.855 INFO kablam!   --> src/net.rs:22:47
Sep 06 05:24:20.855 INFO kablam!    |
Sep 06 05:24:20.855 INFO kablam! 22 |     ) -> Result<Async<Option<TcpConnection>>, !> {
Sep 06 05:24:20.855 INFO kablam!    |                                               ^
Sep 06 05:24:20.855 INFO kablam!    |
Sep 06 05:24:20.855 INFO kablam!    = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.855 INFO kablam! 
Sep 06 05:24:20.857 INFO kablam! error: aborting due to 7 previous errors
Sep 06 05:24:20.857 INFO kablam! 
Sep 06 05:24:20.857 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 06 05:24:20.878 INFO kablam! error: Could not compile `ia`.
Sep 06 05:24:20.878 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 06 05:24:20.890 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.890 INFO kablam!  --> src/executor.rs:7:51
Sep 06 05:24:20.890 INFO kablam!   |
Sep 06 05:24:20.890 INFO kablam! 7 |     fut: UnsafeCell<Box<Future<Item = (), Error = !> + 'static>>
Sep 06 05:24:20.890 INFO kablam!   |                                                   ^
Sep 06 05:24:20.890 INFO kablam!   |
Sep 06 05:24:20.890 INFO kablam!   = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.890 INFO kablam! 
Sep 06 05:24:20.890 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.890 INFO kablam!   --> src/executor.rs:11:47
Sep 06 05:24:20.890 INFO kablam!    |
Sep 06 05:24:20.890 INFO kablam! 11 |     fn new(fut: Box<Future<Item = (), Error = !> + 'static>) -> TaskInfo {
Sep 06 05:24:20.890 INFO kablam!    |                                               ^
Sep 06 05:24:20.890 INFO kablam!    |
Sep 06 05:24:20.890 INFO kablam!    = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.890 INFO kablam! 
Sep 06 05:24:20.890 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.890 INFO kablam!   --> src/executor.rs:17:64
Sep 06 05:24:20.890 INFO kablam!    |
Sep 06 05:24:20.890 INFO kablam! 17 |     fn get_future(&self) -> &mut Box<Future<Item = (), Error = !> + 'static> {
Sep 06 05:24:20.890 INFO kablam!    |                                                                ^
Sep 06 05:24:20.890 INFO kablam!    |
Sep 06 05:24:20.890 INFO kablam!    = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.890 INFO kablam! 
Sep 06 05:24:20.890 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.890 INFO kablam!   --> src/utils.rs:14:18
Sep 06 05:24:20.890 INFO kablam!    |
Sep 06 05:24:20.890 INFO kablam! 14 |     type Error = !;
Sep 06 05:24:20.890 INFO kablam!    |                  ^
Sep 06 05:24:20.890 INFO kablam!    |
Sep 06 05:24:20.890 INFO kablam!    = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.890 INFO kablam! 
Sep 06 05:24:20.890 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.890 INFO kablam!   --> src/utils.rs:18:28
Sep 06 05:24:20.890 INFO kablam!    |
Sep 06 05:24:20.890 INFO kablam! 18 |     ) -> Result<Async<()>, !> {
Sep 06 05:24:20.891 INFO kablam!    |                            ^
Sep 06 05:24:20.891 INFO kablam!    |
Sep 06 05:24:20.891 INFO kablam!    = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.891 INFO kablam! 
Sep 06 05:24:20.891 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.891 INFO kablam!   --> src/net.rs:18:18
Sep 06 05:24:20.891 INFO kablam!    |
Sep 06 05:24:20.891 INFO kablam! 18 |     type Error = !;
Sep 06 05:24:20.891 INFO kablam!    |                  ^
Sep 06 05:24:20.891 INFO kablam!    |
Sep 06 05:24:20.891 INFO kablam!    = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.891 INFO kablam! 
Sep 06 05:24:20.891 INFO kablam! error[E0658]: The `!` type is experimental (see issue #35121)
Sep 06 05:24:20.891 INFO kablam!   --> src/net.rs:22:47
Sep 06 05:24:20.891 INFO kablam!    |
Sep 06 05:24:20.891 INFO kablam! 22 |     ) -> Result<Async<Option<TcpConnection>>, !> {
Sep 06 05:24:20.891 INFO kablam!    |                                               ^
Sep 06 05:24:20.891 INFO kablam!    |
Sep 06 05:24:20.891 INFO kablam!    = help: add #![feature(never_type)] to the crate attributes to enable
Sep 06 05:24:20.891 INFO kablam! 
Sep 06 05:24:20.898 INFO kablam! error: aborting due to 7 previous errors
Sep 06 05:24:20.898 INFO kablam! 
Sep 06 05:24:20.898 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 06 05:24:20.900 INFO kablam! error: Could not compile `ia`.
Sep 06 05:24:20.900 INFO kablam! 
Sep 06 05:24:20.900 INFO kablam! To learn more, run the command again with --verbose.
Sep 06 05:24:20.901 INFO kablam! su: No module specific data is present
Sep 06 05:24:21.879 INFO running `"docker" "rm" "-f" "a64ab914c6715bf902ac02abef0d9c3ae768603f300daa1f01f37f2207425bc6"`
Sep 06 05:24:22.012 INFO blam! a64ab914c6715bf902ac02abef0d9c3ae768603f300daa1f01f37f2207425bc6