CI fixes

Author: pacmancoder

devolutions-agent-updater/src/main.rs

@@ -32,7 +32,11 @@ use devolutions_agent::updater::{self, AgentServiceState};
 fn main() {
     #[cfg(not(windows))]
     {
-        eprintln!("devolutions-agent-updater is only supported on Windows");
+        use std::io::Write as _;
+        let _ = writeln!(
+            std::io::stderr(),
+            "devolutions-agent-updater is only supported on Windows"
+        );
         std::process::exit(1);
     }
 
@@ -236,6 +240,7 @@ fn write_log(path: &str, msg: &str) {
     }
 }
 
+#[cfg(windows)]
 fn write_to_stderr(msg: &str) -> std::io::Result<()> {
     use std::io::Write as _;
     writeln!(std::io::stderr(), "{msg}")