handle files that start with an invalid line

src/main.rs

@@ -69,16 +69,10 @@ fn main() -> MainResult {
     let lines: Vec<_> = log_file.iter().enumerate().collect();
 
     let mut counts: HashMap<MatchResult, Vec<usize>> = HashMap::new();
-    let (_, first) = lines.first().copied().unwrap_or_default();
+    let Some(first_parsed) = lines.iter().find_map(|(_, line)| parse_line(line).ok()) else {
-    let first_parsed = match parse_line(first) {
+        eprintln!("Failed to find at least one log line that parses successfully");
-        Ok(first_parsed) => first_parsed,
+        return Ok(());
-        Err(e) => {
-            eprintln!("Failed to parse the first line in the log: {:#}", e);
-            eprintln!("{first}");
-            return Ok(());
-        }
     };
-
     let server_version = first_parsed.version;
     let statements = get_statements(
         once(SourceDefinition {