Replace HashMap, HashSet with FxHashMap and FxHashSet

1 files changed, 2 insertions, 2 deletions

diff --git a/crates/ra_lsp_server/src/main_loop/handlers.rs b/crates/ra_lsp_server/src/main_loop/handlers.rs
index 725036cc7..ab8be15e9 100644
--- a/crates/ra_lsp_server/src/main_loop/handlers.rs
+++ b/crates/ra_lsp_server/src/main_loop/handlers.rs
@@ -1,4 +1,4 @@
-use std::collections::{HashMap};
+use rustc_hash::FxHashMap;
 
 use languageserver_types::{
     Diagnostic, DiagnosticSeverity, DocumentSymbol,
@@ -267,7 +267,7 @@ pub fn handle_runnables(
             bin: "cargo".to_string(),
             args,
             env: {
-                let mut m = HashMap::new();
+                let mut m = FxHashMap::default();
                 m.insert(
                     "RUST_BACKTRACE".to_string(),
                     "short".to_string(),