Update Cargo

Cargo.toml

@@ -30,7 +30,7 @@ rls-vfs = "0.8"
 rls-ipc = { version = "0.1.0", path = "rls-ipc", optional = true }
 
 anyhow = "1.0.26"
-cargo = { git = "https://github.com/rust-lang/cargo", rev = "34170fcd6e0947808a1ac63ac85ffc0da7dace2f" }
+cargo = { git = "https://github.com/rust-lang/cargo", rev = "970bc67c3775781b9708c8a36893576b9459c64a" }
 cargo_metadata = "0.8"
 clippy_lints = { git = "https://github.com/rust-lang/rust-clippy", rev = "7ea7cd165ad6705603852771bf82cc2fd6560db5", optional = true }
 env_logger = "0.7"

rls/src/build/cargo.rs

@@ -12,9 +12,7 @@ use std::thread;
 use cargo::core::compiler::{BuildConfig, CompileMode, Context, Executor, Unit};
 use cargo::core::resolver::ResolveError;
 use cargo::core::Package;
-use cargo::core::{
-    enable_nightly_features, PackageId, Shell, Target, TargetKind, Verbosity, Workspace,
-};
+use cargo::core::{PackageId, Shell, Target, TargetKind, Verbosity, Workspace};
 use cargo::ops::{compile_with_exec, CompileFilter, CompileOptions, Packages};
 use cargo::util::{
     config as cargo_config, errors::ManifestError, homedir, important_paths, CargoResult,
@@ -123,14 +121,14 @@ fn run_cargo(
     let mut shell = Shell::from_write(Box::new(BufWriter(Arc::clone(&out))));
     shell.set_verbosity(Verbosity::Quiet);
 
-    let config = {
+    let mut config = {
         let rls_config = rls_config.lock().unwrap();
 
         let target_dir = rls_config.target_dir.as_ref().as_ref().map(|p| p as &Path);
         make_cargo_config(manifest_dir, target_dir, restore_env.get_old_cwd(), shell)
     };
+    config.nightly_features_allowed = true;
 
-    enable_nightly_features();
     let ws = Workspace::new(&manifest_path, &config)
         .map_err(|err| ManifestAwareError::new(err, &manifest_path, None))?;
 

rls/src/project_model.rs

@@ -45,7 +45,7 @@ impl ProjectModel {
         assert!(ws_manifest.ends_with("Cargo.toml"));
         let mut config = Config::default()?;
         // Enable nightly flag for cargo(see #1043)
-        cargo::core::enable_nightly_features();
+        config.nightly_features_allowed = true;
         // frozen = false, locked = false, offline = false
         config.configure(0, true, None, false, false, false, &None, &[], &[])?;
         let ws = Workspace::new(&ws_manifest, &config)?;