diff --git a/Cargo.toml b/Cargo.toml
index 72c3650..6276c0d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -45,7 +45,7 @@ nu-ansi-term = { version = "0.50", optional = true }
 chrono = { version = "0.4.22", default-features = false, features = ["clock"] }
 crossbeam-channel = { version = "0.5", optional = true }
 crossbeam-queue = { version = "0.3", optional = true }
-flate2 = { version = "1.0", optional = true }
+flate2 = { version = "1.0", optional = true, features = ["rust_backend"] }
 glob = "0.3"
 hostname = { version = "0.4", optional = true }
 log = { version = "0.4", features = ["std"] }
diff --git a/src/parameters/age.rs b/src/parameters/age.rs
index 75ef648..709d0d9 100644
--- a/src/parameters/age.rs
+++ b/src/parameters/age.rs
@@ -1,5 +1,5 @@
 /// The age after which a log file rotation will be triggered,
-/// when [`Criterion::Age`] is chosen.
+/// when [Criterion::Age](crate::Criterion::Age) is chosen.
 #[derive(Copy, Clone, Debug)]
 pub enum Age {
     /// Rotate the log file when the local clock has started a new day since the
diff --git a/src/writers/syslog/line.rs b/src/writers/syslog/line.rs
index dc3b925..0463dd5 100644
--- a/src/writers/syslog/line.rs
+++ b/src/writers/syslog/line.rs
@@ -30,7 +30,6 @@ impl LineWriter {
         format: FormatFunction,
     ) -> IoResult<LineWriter> {
         const UNKNOWN_HOSTNAME: &str = "<unknown_hostname>";
-        // FIXME
         Ok(LineWriter {
             header,
             hostname: hostname::get().map_or_else(
diff --git a/tests/test_rotate_immediate_compression.rs b/tests/test_rotate_immediate_compression.rs
index c8d9235..2ffbda5 100644
--- a/tests/test_rotate_immediate_compression.rs
+++ b/tests/test_rotate_immediate_compression.rs
@@ -1,7 +1,5 @@
 mod test_utils;
 
-#[cfg(feature = "compress")]
-use chrono::Local;
 #[cfg(feature = "compress")]
 use flexi_logger::{Age, Cleanup, Criterion, Duplicate, FileSpec, Logger, Naming};
 #[cfg(feature = "compress")]
@@ -47,6 +45,8 @@ fn work(value: u8) {
 
 #[cfg(feature = "compress")]
 fn test_variant(naming: Naming, criterion: Criterion, cleanup: Cleanup) {
+    use std::time::{Duration, Instant};
+
     let directory = test_utils::dir();
 
     test_utils::wait_for_start_of_second();
@@ -70,15 +70,17 @@ fn test_variant(naming: Naming, criterion: Criterion, cleanup: Cleanup) {
         }
     );
     let mut written_lines = 1;
-    let start = Local::now();
-    let duration = chrono::Duration::from_std(std::time::Duration::from_millis(3200)).unwrap();
-    while Local::now() - start < duration {
+
+    let start = Instant::now();
+    let max_runtime = Duration::from_millis(3_200);
+    let sleep_time = Duration::from_millis(7);
+    while Instant::now() - start < max_runtime {
         written_lines += 1;
         if written_lines % 17 == 4 {
             logger.trigger_rotation().unwrap();
         }
         trace!("line_count = {written_lines}");
-        std::thread::sleep(std::time::Duration::from_millis(7));
+        std::thread::sleep(sleep_time);
     }
 
     std::thread::sleep(std::time::Duration::from_millis(100));