$ perl testing.pl
state(0): continuation call to routine required;unknown mech-code 0 for mech unknown; output token sz: 1514
state(0):  Function completed successfully;unknown mech-code 0 for mech unknown; output token sz: 
state(1): layermask 7,rsz 10485760,lsz 16777215,choice 4
searching with filter='(&(objectClass=person)(CN=dvl))' and base='OU=People,DC=us,DC=example,DC=com'
Failed to retrieve user entry: I/O Error  LDAP_OPERATIONS_ERROR Operations error 1 5