dfuzzer should probably keep going on receiving "Error: Unable to get interface ... data"

[evverx]

With NetworkManager dfuzzer fails with

...
  PASS [M] Delete                                                                                                                                             
 Interface: org.freedesktop.NetworkManager.Device.Loopback
Error: Unable to get interface 'org.freedesktop.NetworkManager.Device.Loopback' data.
Exit status: 1

because those things disappear when the Delete method is called. The Delete method should be marked destructive probably. It would hide the memory leak though:

==183==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 96 byte(s) in 1 object(s) allocated from:
    #0 0x0000004a72b8 in malloc (/usr/bin/NetworkManager+0x4a72b8) (BuildId: 37deb8e6cdf7eb9d4b54d73319b76006a3f595e1)
    #1 0x7fa47b58eba9 in g_malloc /usr/src/debug/glib2-2.86.0-2.fc43.x86_64/redhat-linux-build/../glib/gmem.c:100:13
    #2 0x7fa47b5a8ab4 in g_slice_alloc /usr/src/debug/glib2-2.86.0-2.fc43.x86_64/redhat-linux-build/../glib/gslice.c:193:9
    #3 0x7fa47b56e88a in g_hash_table_new_full /usr/src/debug/glib2-2.86.0-2.fc43.x86_64/redhat-linux-build/../glib/ghash.c:1024:16
    #4 0x000000590100 in nm_config_device_state_load_all /root/NetworkManager/build/../src/core/nm-config.c:2573:14
    #5 0x0000005918c1 in _device_state_get_all /root/NetworkManager/build/../src/core/nm-config.c:2799:31
    #6 0x000000591b65 in nm_config_device_state_get /root/NetworkManager/build/../src/core/nm-config.c:2827:32
    #7 0x0000005d330d in platform_query_devices /root/NetworkManager/build/../src/core/nm-manager.c:4459:21
    #8 0x0000005d330d in nm_manager_start /root/NetworkManager/build/../src/core/nm-manager.c:8121:5
    #9 0x0000004e2571 in main /root/NetworkManager/build/../src/core/main.c:491:10
    #10 0x7fa47a91b5b4 in __libc_start_call_main (/lib64/libc.so.6+0x35b4) (BuildId: b1556adba4fb835078af59a0c8bb38367dc860ed)
    #11 0x7fa47a91b667 in __libc_start_main@GLIBC_2.2.5 (/lib64/libc.so.6+0x3667) (BuildId: b1556adba4fb835078af59a0c8bb38367dc860ed)
    #12 0x000000403c64 in _start (/usr/bin/NetworkManager+0x403c64) (BuildId: 37deb8e6cdf7eb9d4b54d73319b76006a3f595e1)