$ stap --dyninst -e 'probe process("/usr/bin/true").function("main") {rintln(pn())}' -c /usr/bin/true
Using a compile server.
Failed to create Avahi client: Daemon not running
Unable to find a suitable compile server.  [man stap-server]
No servers online to select from.
Passes: via server failed.  Try again with another '-v' option.
The kernel on your system requires modules to be signed for loading.
The module created by compiling your script must be signed by a systemtap compile-server.  [man stap-server]
--use-server was automatically selected in order to request compilation by a compile-server.