diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index db77ca445..b66be47ea 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -45,7 +45,7 @@ jobs:
           override: true
       - run: rustup component add rustfmt clippy
       - run: sudo apt-get -y update
-      - run: sudo apt-get install -y pkg-config libsystemd-dev libdbus-glib-1-dev
+      - run: sudo apt-get install -y pkg-config libsystemd-dev libdbus-glib-1-dev libelf-dev
       - name: Check formatting
         run: cargo fmt --all -- --check
         working-directory: ${{matrix.dirs}}
@@ -74,8 +74,6 @@ jobs:
           override: true
       - run: sudo apt-get -y update
       - run: sudo apt-get install -y pkg-config libsystemd-dev libdbus-glib-1-dev libelf-dev
-      - name: Build
-        run: ./build.sh --release
       - name: Run tests
         run: cargo test --no-fail-fast
       - name: Run doc tests
diff --git a/src/process/init.rs b/src/process/init.rs
index e258b9bff..577688c2d 100644
--- a/src/process/init.rs
+++ b/src/process/init.rs
@@ -526,6 +526,7 @@ mod tests {
     use super::*;
     use anyhow::{bail, Result};
     use nix::{fcntl, sys, unistd};
+    use serial_test::serial;
     use std::fs;
 
     #[test]
@@ -553,6 +554,7 @@ mod tests {
     }
 
     #[test]
+    #[serial]
     fn test_cleanup_file_descriptors() -> Result<()> {
         // Open a fd without the CLOEXEC flag. Rust automatically adds the flag,
         // so we use fcntl::open here for more control.