2 files changed, 8 insertions, 3 deletions

diff --git a/crates/ra_flycheck/src/lib.rs b/crates/ra_flycheck/src/lib.rs
index b54a30ab8..f27252949 100644
--- a/crates/ra_flycheck/src/lib.rs
+++ b/crates/ra_flycheck/src/lib.rs
@@ -24,7 +24,7 @@ pub use crate::conv::url_from_path_with_drive_lowercasing;
 
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub enum FlycheckConfig {
-    CargoCommand { command: String, all_targets: bool, extra_args: Vec<String> },
+    CargoCommand { command: String, all_targets: bool, all_features: bool, extra_args: Vec<String> },
     CustomCommand { command: String, args: Vec<String> },
 }
 
@@ -215,7 +215,7 @@ impl FlycheckThread {
         self.check_process = None;
 
         let mut cmd = match &self.config {
-            FlycheckConfig::CargoCommand { command, all_targets, extra_args } => {
+            FlycheckConfig::CargoCommand { command, all_targets, all_features, extra_args } => {
                 let mut cmd = Command::new(cargo_binary());
                 cmd.arg(command);
                 cmd.args(&["--workspace", "--message-format=json", "--manifest-path"]);
@@ -223,6 +223,9 @@ impl FlycheckThread {
                 if *all_targets {
                     cmd.arg("--all-targets");
                 }
+                if *all_features {
+                    cmd.arg("--all-features");
+                }
                 cmd.args(extra_args);
                 cmd
             }
diff --git a/crates/rust-analyzer/src/config.rs b/crates/rust-analyzer/src/config.rs
index 8d85c60cf..ccc38e3bb 100644
--- a/crates/rust-analyzer/src/config.rs
+++ b/crates/rust-analyzer/src/config.rs
@@ -89,6 +89,7 @@ impl Default for Config {
             check: Some(FlycheckConfig::CargoCommand {
                 command: "check".to_string(),
                 all_targets: true,
+                all_features: true,
                 extra_args: Vec::new(),
             }),
 
@@ -173,12 +174,13 @@ impl Config {
                 }
                 // otherwise configure command customizations
                 _ => {
-                    if let Some(FlycheckConfig::CargoCommand { command, extra_args, all_targets })
+                    if let Some(FlycheckConfig::CargoCommand { command, extra_args, all_targets, all_features })
                         = &mut self.check
                     {
                         set(value, "/checkOnSave/extraArgs", extra_args);
                         set(value, "/checkOnSave/command", command);
                         set(value, "/checkOnSave/allTargets", all_targets);
+                        set(value, "/checkOnSave/allFeatures", all_features);
                     }
                 }
             };