snapcraft requested file bug report

[Patrick Quentin Armitage]

When trying to build the keepalived snap on Xenial, following a compile failure snapcraft produced the following:

notify.c: In function ‘check_script_secure’:
notify.c:934:41: error: ‘magic_desc’ undeclared (first use in this function)
 log_message(LOG_INFO, "magic_desc: %s", magic_desc);
                                         ^
notify.c:934:41: note: each undeclared identifier is reported only once for each function it appears in
notify.c:935:15: warning: declaration of ‘magic_desc’ shadows previous non-variable [-Wshadow]
   const char *magic_desc = magic_file(magic, real_file_path ? real_file_path : script->args[0]);
               ^
Makefile:413: recipe for target 'notify.o' failed
make[2]: *** [notify.o] Error 1
make[2]: Leaving directory '/home/quentin/keepalived/github/parts/keepalived/build/lib'
Makefile:322: recipe for target 'all' failed
make[1]: *** [all] Error 2
make[1]: Leaving directory '/home/quentin/keepalived/github/parts/keepalived/build/lib'
Makefile:430: recipe for target 'all-recursive' failed
make: *** [all-recursive] Error 1
Failed to run 'make -j1' for 'keepalived': Exited with code 2.
Verify that the part is using the correct parameters and try again.
quentin@ubuntu-16-04-1:~/keepalived/github$ Sorry, an error occurred in Snapcraft:
Traceback (most recent call last):
  File "<string>", line 5, in <module>
  File "/usr/lib/python3/dist-packages/click/core.py", line 716, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/click/core.py", line 696, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python3/dist-packages/click/core.py", line 1060, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/lib/python3/dist-packages/click/core.py", line 889, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python3/dist-packages/click/core.py", line 534, in invoke
    return callback(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/snapcraft/cli/snapcraftctl/_runner.py", line 75, in set_version
    _call_function("set-version", {"version": version})
  File "/usr/lib/python3/dist-packages/snapcraft/cli/snapcraftctl/_runner.py", line 104, in _call_function
    with open(call_fifo, "w") as f:
FileNotFoundError: [Errno 2] No such file or directory: '/tmp/tmpis97bnmx/function_call'
We would appreciate it if you created a bug report at
https://launchpad.net/snapcraft/+filebug with the above text included.

The version of snapcraft is 2.43.1. It is installed with apt, and is not a snapped version.