symcheck: Format JSON output to make it more readable

Author: tgross35

crates/symbol-check/src/main.rs

@@ -60,10 +60,11 @@ fn exec_cargo_with_args(args: &[&str]) -> Vec<PathBuf> {
 
     for line in reader.lines() {
         let line = line.expect("failed to read line");
-        println!("{line}"); // tee to stdout
 
         // Select only steps that create files
         let j: Value = serde_json::from_str(&line).expect("failed to deserialize");
+        println!("{j:#?}"); // tee to stdout
+
         if j["reason"] != "compiler-artifact" {
             continue;
         }