gpg: WARNING: --honor-http-proxy is a deprecated option.
gpg: please use "--keyserver-options honor-http-proxy" instead
gpg: D61B227D: There is no indication that this key really belongs to the owner
gpg: cannot open /dev/tty: No such device or address

the first one can be fixed by removing/commenting out the
#honor-http-proxy
option in the ~/.gnupg/options file

the /dev/tty problem can be fixed by appending --always-trust to
the command line, because gpg tries to ask for a passphrase or
something to approve the use of an untusted key.