diff --git a/.woodpecker.yml b/.woodpecker.yml
index 8785d9a..532ef2f 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -2,4 +2,4 @@ pipeline:
   test:
     image: rust
     commands:
-     - cargo test
\ No newline at end of file
+     - cargo test
diff --git a/server/src/api.rs b/server/src/api.rs
index e539ede..09f6eba 100644
--- a/server/src/api.rs
+++ b/server/src/api.rs
@@ -6,14 +6,13 @@ use std::fmt::Debug;
 use std::net::SocketAddr;
 use std::path::{self, PathBuf};
 use std::sync::Arc;
-use std::time::{SystemTime, UNIX_EPOCH};
+use std::time::SystemTime;
 
 use anyhow::Context;
 
 use axum::body;
 use axum::extract::rejection::QueryRejection;
 use axum::extract::{Query, State};
-use chrono::Duration;
 
 use ssh_cert_dist_common::*;
 
@@ -475,7 +474,8 @@ mod tests {
             user_key,
             unix_time(SystemTime::now()),
             unix_time(SystemTime::now() + validity),
-        );
+        )
+        .unwrap();
 
         builder
             .valid_principal("git")