GFX is broken on nightly

[ozkriff]

https://travis-ci.org/ozkriff/zoc/jobs/169961437

...
cargo build --release
   Compiling core v0.0.1 (file:///home/travis/build/ozkriff/zoc/core)
   Compiling glutin v0.6.1
   Compiling tempfile v2.1.4
   Compiling wayland-window v0.2.3
   Compiling gfx_window_glutin v0.12.0
   Compiling zoc v0.0.1 (file:///home/travis/build/ozkriff/zoc)
error[E0432]: unresolved import `$crate`
  --> src/pipeline.rs:8:1
   |
8  | gfx_defines! {
   | ^ no `$crate` in the root
   |
   = note: this error originates in a macro outside of the current crate
error[E0433]: failed to resolve. Use of undeclared type or module `gfx`
  --> src/pipeline.rs:15:22
   |
15 |         basic_color: gfx::Global<[f32; 4]> = "u_Basic_color",
   |                      ^^^^^^^^^^^^^^^^^^^^^ Use of undeclared type or module `gfx`
...

[kvark]

Looks like a rust-lang regression (rust-lang/rust#37352), almost fixed (PR rust-lang/rust#37361 waiting for merge).

[ozkriff]

Now the error says:

. . .
warning: `$crate` may not be imported
  --> src/pipeline.rs:8:1
   |
8  | gfx_defines! {
   | ^
   |
   = note: `use $crate;` was erroneously allowed and will become a hard error in a future release
   = note: this error originates in a macro outside of the current crate
error[E0433]: failed to resolve. Use of undeclared type or module `gfx`
  --> src/pipeline.rs:15:22
   |
15 |         basic_color: gfx::Global<[f32; 4]> = "u_Basic_color",
   |                      ^^^^^^^^^^^^^^^^^^^^^ Use of undeclared type or module `gfx`
. . .

https://travis-ci.org/ozkriff/zoc/jobs/171525019

[jeffparsons]

Just to offer another example...

(snip)

   Compiling piston2d-gfx_graphics v0.31.2
warning: `$crate` may not be imported
  --> /Users/jeff/.cargo/registry/src/github.1485827954.workers.dev-1ecc6299db9ec823/piston2d-gfx_graphics-0.31.2/src/back_end.rs:30:1
   |
30 | gfx_pipeline_base!( pipe_colored {
   | ^
   |
   = note: `use $crate;` was erroneously allowed and will become a hard error in a future release
   = note: this error originates in a macro outside of the current crate

warning: `$crate` may not be imported
  --> /Users/jeff/.cargo/registry/src/github.1485827954.workers.dev-1ecc6299db9ec823/piston2d-gfx_graphics-0.31.2/src/back_end.rs:39:1
   |
39 | gfx_pipeline_base!( pipe_textured {
   | ^
   |
   = note: `use $crate;` was erroneously allowed and will become a hard error in a future release
   = note: this error originates in a macro outside of the current crate

error[E0433]: failed to resolve. Use of undeclared type or module `gfx`
  --> /Users/jeff/.cargo/registry/src/github.1485827954.workers.dev-1ecc6299db9ec823/piston2d-gfx_graphics-0.31.2/src/back_end.rs:31:10
   |
31 |     pos: gfx::VertexBuffer<PositionFormat>,
   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Use of undeclared type or module `gfx`

(snip)

[jeff@host:~/Projects/planetkit]$ rustup run nightly rustc --version
rustc 1.14.0-nightly (3f4408347 2016-10-27)

[ozkriff]

@kvark Could you update crates.io version?

[kvark]

done in https://crates.io/crates/gfx/0.12.2

[kvark]

Apparently, this change breaks rust-stable, so I yanked v0.12.2 for now...