dnseval silently fails if a server does not support transport protocol (i.e. DoH)

[farrokhi]

% ./dnseval.py -m -H -D -C -f public-v4.txt sidn.nl
server              avg(ms)     min(ms)     max(ms)     stddev(ms)  lost(%)  ttl        flags                  response
-----------------------------------------------------------------------------------------------------------------------
1.0.0.1             100.334     94.080      110.639     5.270       %0       N/A        QR -- -- RD RA AD --   NXDOMAIN
1.1.1.1             104.868     94.887      111.644     6.183       %0       N/A        QR -- -- RD RA AD --   NXDOMAIN

However the list contains more resolvers:

% grep -Ev '^($|#)' public-v4.txt | wc -l
30

Apparently the third item on the list does not support DoH, therefor dnseval fails silently