Find libbpf-rs in /usr/share/cargo/registry, not in the local checkout
--- a/src/test.rs
+++ b/src/test.rs
@@ -103,10 +103,7 @@ fn validate_bpf_o(path: &Path) {
 fn get_libbpf_rs_path() -> PathBuf {
     let cwd = std::env::current_dir().expect("failed to get cwd");
 
-    Path::new(&cwd)
-        .parent()
-        .expect("failed to get parent of cwd")
-        .join("libbpf-rs")
+    Path::new("/usr/share/cargo/registry/libbpf-rs-0.19.1")
         .canonicalize()
         .expect("failed to canonicalize libbpf-rs")
 }