Get Serial Scenarios from the front of the queue in runner::Basic (#146)

Author: ilslv

CHANGELOG.md

@@ -6,6 +6,20 @@ All user visible changes to `cucumber` crate will be documented in this file. Th
 
 
 
+## [0.10.1] · 2021-10-??
+[0.10.1]: /../../tree/v0.10.1
+
+[Diff](/../../compare/v0.10.0...v0.10.1) | [Milestone](/../../milestone/4)
+
+### Fixed
+
+- Console output hanging because of executing wrong `Concurrent` `Scenario`s. ([#146])
+
+[#146]: /../../pull/146
+
+
+
+
 ## [0.10.0] · 2021-10-26
 [0.10.0]: /../../tree/v0.10.0
 

src/runner/basic.rs

@@ -1217,7 +1217,7 @@ impl Features {
         let mut scenarios = self.scenarios.lock().await;
         scenarios
             .get_mut(&ScenarioType::Serial)
-            .and_then(|s| s.pop().map(|s| vec![s]))
+            .and_then(|s| (!s.is_empty()).then(|| vec![s.remove(0)]))
             .or_else(|| {
                 scenarios.get_mut(&ScenarioType::Concurrent).and_then(|s| {
                     (!s.is_empty()).then(|| {