Print stdout and stderr as string

As the `stdout` as well as the `stderr` were printed as `Vec<u8>` we
now convert it to a string.

src/main.rs

@@ -15,7 +15,10 @@ use rocket::{fairing::AdHoc, get, http::Status, post, routes, Response, State};
 use rocket_contrib::json::Json;
 use serde::{Deserialize, Serialize};
 
-use std::{collections::HashMap, fs::File, io::BufReader, net::SocketAddr, process::Command};
+use std::{
+    collections::HashMap, fs::File, io::BufReader, net::SocketAddr, process::Command,
+    str::from_utf8,
+};
 
 #[derive(Debug, Deserialize, Serialize)]
 struct Config {
@@ -100,21 +103,21 @@ fn execute_hook(name: &str, hook: &Hook, data: &serde_json::Value) -> Result<()>
         info!("Execute `{}` from hook `{}`", command, name);
 
         let command = command.split(' ').collect::<Vec<&str>>();
-
         let exec_command = Command::new(&command[0]).args(&command[1..]).output()?;
 
         info!(
             "Command `{}` exited with return code: {}",
             &command[0], &exec_command.status
         );
-        debug!(
-            "Output of command `{}` on stderr: {:?}",
-            &command[0], &exec_command.stderr
-        );
         trace!(
             "Output of command `{}` on stdout: {:?}",
             &command[0],
-            &exec_command.stdout
+            from_utf8(&exec_command.stdout)?
+        );
+        debug!(
+            "Output of command `{}` on stderr: {:?}",
+            &command[0],
+            from_utf8(&exec_command.stderr)?
         );
     }