3 files changed, 12 insertions, 11 deletions

diff --git a/crates/ra_flycheck/src/lib.rs b/crates/ra_flycheck/src/lib.rs
index f6f9171ad..b6bb9da4b 100644
--- a/crates/ra_flycheck/src/lib.rs
+++ b/crates/ra_flycheck/src/lib.rs
@@ -24,7 +24,6 @@ pub use crate::conv::url_from_path_with_drive_lowercasing;
 
 #[derive(Clone, Debug)]
 pub struct CheckConfig {
-    pub enable: bool,
     pub args: Vec<String>,
     pub command: String,
     pub all_targets: bool,
@@ -216,9 +215,6 @@ impl CheckWatcherThread {
         // First, clear and cancel the old thread
         self.message_recv = never();
         self.check_process = None;
-        if !self.options.enable {
-            return;
-        }
 
         let mut args: Vec<String> = vec![
             self.options.command.clone(),
diff --git a/crates/rust-analyzer/src/main_loop.rs b/crates/rust-analyzer/src/main_loop.rs
index bb33fb27d..16d7f1569 100644
--- a/crates/rust-analyzer/src/main_loop.rs
+++ b/crates/rust-analyzer/src/main_loop.rs
@@ -101,11 +101,14 @@ fn get_config(
             chaining_hints: config.inlay_hints_chaining,
             max_length: config.inlay_hints_max_length,
         },
-        check: CheckConfig {
-            enable: config.cargo_watch_enable,
-            args: config.cargo_watch_args.clone(),
-            command: config.cargo_watch_command.clone(),
-            all_targets: config.cargo_watch_all_targets,
+        check: if config.cargo_watch_enable {
+            Some(CheckConfig {
+                args: config.cargo_watch_args.clone(),
+                command: config.cargo_watch_command.clone(),
+                all_targets: config.cargo_watch_all_targets,
+            })
+        } else {
+            None
         },
         rustfmt_args: config.rustfmt_args.clone(),
         vscode_lldb: config.vscode_lldb,
diff --git a/crates/rust-analyzer/src/world.rs b/crates/rust-analyzer/src/world.rs
index acb729bae..9a4e353fb 100644
--- a/crates/rust-analyzer/src/world.rs
+++ b/crates/rust-analyzer/src/world.rs
@@ -32,6 +32,8 @@ use ra_db::ExternSourceId;
 use rustc_hash::{FxHashMap, FxHashSet};
 
 fn create_watcher(workspaces: &[ProjectWorkspace], config: &Config) -> Option<CheckWatcher> {
+    let check_config = config.check.as_ref()?;
+
     // FIXME: Figure out the multi-workspace situation
     workspaces
         .iter()
@@ -41,7 +43,7 @@ fn create_watcher(workspaces: &[ProjectWorkspace], config: &Config) -> Option<Ch
         })
         .map(|cargo| {
             let cargo_project_root = cargo.workspace_root().to_path_buf();
-            Some(CheckWatcher::new(config.check.clone(), cargo_project_root))
+            Some(CheckWatcher::new(check_config.clone(), cargo_project_root))
         })
         .unwrap_or_else(|| {
             log::warn!("Cargo check watching only supported for cargo workspaces, disabling");
@@ -56,7 +58,7 @@ pub struct Config {
     pub line_folding_only: bool,
     pub inlay_hints: InlayHintsConfig,
     pub rustfmt_args: Vec<String>,
-    pub check: CheckConfig,
+    pub check: Option<CheckConfig>,
     pub vscode_lldb: bool,
     pub proc_macro_srv: Option<String>,
 }