HostInfo.Uptime is now uint64.

host_linux.go

@@ -47,7 +47,7 @@ func BootTime() (int64, error) {
 	if err := syscall.Sysinfo(sysinfo); err != nil {
 		return 0, err
 	}
-	return int64(sysinfo.Uptime), nil
+	return uint64(sysinfo.Uptime), nil
 }
 
 func Users() ([]UserStat, error) {

host_windows.go

@@ -26,7 +26,7 @@ func HostInfo() (*HostInfoStat, error) {
 		return ret, syscall.GetLastError()
 	}
 
-	ret.Uptime = int64(uptimemsec) / 1000
+	ret.Uptime = uint64(uptimemsec) / 1000
 
 	procs, err := Pids()
 	if err != nil {
@@ -56,7 +56,7 @@ func BootTime() (int64, error) {
 	}
 	uptime := uint64(u) / 1000
 
-	return int64(pt - uptime), nil
+	return uint64(pt - uptime), nil
 }
 func Users() ([]UserStat, error) {