examples cannot begin to compile due to --features not working in workspaces #1319
Comments
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The documentation's gotten a bit disorganized since the project was broken up into subcrates. You're looking at the old documentation for conrod; the more up to date docs explain how to compile the examples here: https://docs.rs/conrod_core/0.67.0/conrod_core/guide/chapter_2/index.html The tl;dr is: |
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Thank you. The README points to the old docs, but you're right that it's a bit tricky to fix at the moment. I had a further issue running the examples still, it might be that's something missing on my system though? Is there a list of *-dev packages that need installing on linux (Debian based)? It seems like a lot of non-rust packages are required for "graphics stuff", including conrod. Is it libxcb? I might need to install some of these packages: Happy to open a new issue since this is a bit of a tangent! |
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Ah, found someone with a similar issue to me. There are dependencies required to run compile graphics applications in rust. Amethyst has a section in their documentation that seems to apply well here: https://github.com/amethyst/amethyst#debianubuntu With those packages installed the example compiled no problem :) |
As per the docs: https://docs.rs/conrod/0.61.1/conrod/guide/chapter_2/index.html
I (running on Ubuntu 19.04 with rustc version
rustc 1.40.0-nightly (9e346646e 2019-11-08)) ran through steps 1, 2 and 3 but step 4 failed:Some warnings but it finished successfully:
warning: trait objects without an explicit
dynare deprecated--> conrod_core/src/graph/mod.rs:71:33
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71 | pub maybe_state: Option<Box<Any + Send>>,
| ^^^^^^^^^^ help: use
dyn:dyn Any + Send|
= note:
#[warn(bare_trait_objects)]on by defaultwarning: trait objects without an explicit
dynare deprecated--> conrod_core/src/theme.rs:63:20
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63 | pub style: Box<Any + Send>,
| ^^^^^^^^^^ help: use
dyn:dyn Any + Sendwarning: trait objects without an explicit
dynare deprecated--> conrod_core/src/theme.rs:79:27
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79 | pub fn new(style: Box<Any + Send>) -> WidgetDefault {
| ^^^^^^^^^^ help: use
dyn:dyn Any + Sendwarning: use of deprecated item 'std::mem::uninitialized': use
mem::MaybeUninitinstead--> backends/conrod_glium/./src/lib.rs:112:5
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112 | implement_vertex!(Vertex, position, tex_coords, color, mode);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note:
#[warn(deprecated)]on by default= note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
warning: use of deprecated item 'std::mem::uninitialized': use
mem::MaybeUninitinstead--> backends/conrod_glium/./src/lib.rs:112:5
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112 | implement_vertex!(Vertex, position, tex_coords, color, mode);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
warning: trait objects without an explicit
dynare deprecated--> backends/conrod_vulkano/src/lib.rs:172:19
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172 | pipeline: Arc<GraphicsPipelineAbstract + Send + Sync>,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use
dyn:dyn GraphicsPipelineAbstract + Send + Sync|
= note:
#[warn(bare_trait_objects)]on by defaultwarning: trait objects without an explicit
dynare deprecated--> backends/conrod_vulkano/src/lib.rs:180:48
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180 | tex_descs: FixedSizeDescriptorSetsPool<Arc<GraphicsPipelineAbstract + Send + Sync>>,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use
dyn:dyn GraphicsPipelineAbstract + Send + Syncwarning: trait objects without an explicit
dynare deprecated--> backends/conrod_vulkano/src/lib.rs:197:32
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197 | pub graphics_pipeline: Arc<GraphicsPipelineAbstract + Send + Sync>,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use
dyn:dyn GraphicsPipelineAbstract + Send + Syncwarning: trait objects without an explicit
dynare deprecated--> backends/conrod_vulkano/src/lib.rs:199:29
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199 | pub descriptor_set: Arc<DescriptorSet + Send + Sync>,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use
dyn:dyn DescriptorSet + Send + Syncwarning: trait objects without an explicit
dynare deprecated--> backends/conrod_vulkano/src/lib.rs:921:32
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921 | fn cause(&self) -> Option<&StdError> {
| ^^^^^^^^ help: use
dyn:dyn StdErrorwarning: trait objects without an explicit
dynare deprecated--> backends/conrod_vulkano/src/lib.rs:940:32
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940 | fn cause(&self) -> Option<&StdError> {
| ^^^^^^^^ help: use
dyn:dyn StdErrorThis seems to be the cause: rust-lang/cargo#4753
I'm sure the examples can run but as a new user I am unsure about the structure of the workspace, the features flag or cargo workspaces so I need to ask for help.
None of the examples work as stated, simply because of the
--featuresand yet the features are needed to run the examples, so they can't simply be omitted :(Reading through rust-lang/cargo#4753 it seems like there is no known workaround (rust-lang/cargo#4753 (comment)), so I'm curious how conrod developers workaround this?
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