Bump Rust to 1.75 (#3815)

**This PR also bumps wasmtime version from 0.38 to 2.0 as 0.38 does not
build with Rust 1.75**. I did not test the plugin runtime as (AFAIK) we
intend to deprecate it; also, wasmtime's most recent version is 16.0, so
it'd make sense to bump the version at some point anyways. I did not
bump the version to 16.0 straight away as that'd require code changes in
`plugin_runtime`.
Release Notes:

- N/A

Dockerfile

@@ -1,6 +1,6 @@
 # syntax = docker/dockerfile:1.2
 
-FROM rust:1.73-bullseye as builder
+FROM rust:1.75-bullseye as builder
 WORKDIR app
 COPY . .
 

crates/collab2/src/tests.rs

@@ -13,7 +13,6 @@ mod random_project_collaboration_tests;
 mod randomized_test_helpers;
 mod test_server;
 
-pub use crate as collab2;
 pub use randomized_test_helpers::{
     run_randomized_test, save_randomized_test_plan, RandomizedTest, TestError, UserTestPlan,
 };

crates/gpui/src/util.rs

@@ -1,6 +1,5 @@
 use smol::future::FutureExt;
 use std::{future::Future, time::Duration};
-pub use util::*;
 
 pub fn post_inc(value: &mut usize) -> usize {
     let prev = *value;

crates/language/src/buffer.rs

@@ -2,7 +2,7 @@ pub use crate::{
     diagnostic_set::DiagnosticSet,
     highlight_map::{HighlightId, HighlightMap},
     markdown::ParsedMarkdown,
-    proto, BracketPair, Grammar, Language, LanguageConfig, LanguageRegistry, PLAIN_TEXT,
+    proto, Grammar, Language, LanguageRegistry,
 };
 use crate::{
     diagnostic_set::{DiagnosticEntry, DiagnosticGroup},

crates/language2/src/buffer.rs

@@ -2,7 +2,7 @@ pub use crate::{
     diagnostic_set::DiagnosticSet,
     highlight_map::{HighlightId, HighlightMap},
     markdown::ParsedMarkdown,
-    proto, BracketPair, Grammar, Language, LanguageConfig, LanguageRegistry, PLAIN_TEXT,
+    proto, Grammar, Language, LanguageRegistry,
 };
 use crate::{
     diagnostic_set::{DiagnosticEntry, DiagnosticGroup},

crates/plugin_runtime/Cargo.toml

@@ -5,9 +5,9 @@ edition = "2021"
 publish = false
 
 [dependencies]
-wasmtime = "0.38"
-wasmtime-wasi = "0.38"
-wasi-common = "0.38"
+wasmtime = "2.0"
+wasmtime-wasi = "2.0"
+wasi-common = "2.0"
 anyhow.workspace = true
 serde.workspace = true
 serde_derive.workspace = true
@@ -17,4 +17,4 @@ pollster = "0.2.5"
 smol.workspace = true
 
 [build-dependencies]
-wasmtime = { version = "0.38", features = ["all-arch"] }
+wasmtime = { version = "2.0", features = ["all-arch"] }

crates/ui2/src/components/button/button_like.rs

@@ -199,6 +199,7 @@ impl ButtonStyle {
         }
     }
 
+    #[allow(unused)]
     pub(crate) fn disabled(self, cx: &mut WindowContext) -> ButtonLikeStyles {
         match self {
             ButtonStyle::Filled => ButtonLikeStyles {

crates/ui2/src/ui2.rs

@@ -28,7 +28,6 @@ pub use components::*;
 pub use disableable::*;
 pub use fixed::*;
 pub use prelude::*;
-pub use selectable::*;
+
 pub use styled_ext::*;
 pub use styles::*;
-pub use visible_on_hover::*;

rust-toolchain.toml

@@ -1,4 +1,4 @@
 [toolchain]
-channel = "1.73"
+channel = "1.75"
 components = [ "rustfmt" ]
 targets = [ "x86_64-apple-darwin", "aarch64-apple-darwin", "wasm32-wasi" ]