Check that all solutions run successfully

src/run.rs

@@ -4,14 +4,14 @@ use std::io::{self, Write};
 
 use crate::{
     app_state::{AppState, ExercisesProgress},
-    exercise::OUTPUT_CAPACITY,
+    exercise::{RunnableExercise, OUTPUT_CAPACITY},
     terminal_link::TerminalFileLink,
 };
 
 pub fn run(app_state: &mut AppState) -> Result<()> {
     let exercise = app_state.current_exercise();
     let mut output = Vec::with_capacity(OUTPUT_CAPACITY);
-    let success = exercise.run(&mut output, app_state.target_dir())?;
+    let success = exercise.run_exercise(&mut output, app_state.target_dir())?;
 
     let mut stdout = io::stdout().lock();
     stdout.write_all(&output)?;