expected u32, found u64 about electrs HOT 2 CLOSED

diff --git i/src/bulk.rs w/src/bulk.rs
index 54bc3b2..b7408ed 100644
--- i/src/bulk.rs
+++ w/src/bulk.rs
@@ -151,6 +151,25 @@ fn load_headers(daemon: &Daemon) -> Result<HeaderList> {
     Ok(headers)
 }
 
+#[cfg(target_pointer_width = "32")]
+fn set_open_files_limit(limit: u32) {
+    let resource = libc::RLIMIT_NOFILE;
+    let mut rlim = libc::rlimit {
+        rlim_cur: 0,
+        rlim_max: 0,
+    };
+    let result = unsafe { libc::getrlimit(resource, &mut rlim) };
+    if result < 0 {
+        panic!("getrlimit() failed: {}", result);
+    }
+    rlim.rlim_cur = limit; // set softs limit only.
+    let result = unsafe { libc::setrlimit(resource, &rlim) };
+    if result < 0 {
+        panic!("setrlimit() failed: {}", result);
+    }
+}
+
+#[cfg(target_pointer_width = "64")]
 fn set_open_files_limit(limit: u64) {
     let resource = libc::RLIMIT_NOFILE;
     let mut rlim = libc::rlimit {