>>> rtptools 1.22 Downloading
wget -nd -t 3 --no-check-certificate -O '/workdir/instance-0/output-1/build/.rtptools-1.22.tar.gz.niQSUc/output' 'http://www.cs.columbia.edu/irt/software/rtptools/download/rtptools-1.22.tar.gz' 
WARNING: The certificate is NOT trusted. The certificate issuer is unknown. 
[0] Downloading 'http://www.cs.columbia.edu/irt/software/rtptools/download/rtptools-1.22.tar.gz' ...
HTTP response 301 Moved Permanently [http://www.cs.columbia.edu/irt/software/rtptools/download/rtptools-1.22.tar.gz]
Adding URL: https://www.cs.columbia.edu/irt/software/rtptools/download/rtptools-1.22.tar.gz
[0] Downloading 'https://www.cs.columbia.edu/irt/software/rtptools/download/rtptools-1.22.tar.gz' ...
HTTP ERROR response 500 Internal Server Error [https://www.cs.columbia.edu/irt/software/rtptools/download/rtptools-1.22.tar.gz]
make: *** [package/pkg-generic.mk:179: /workdir/instance-0/output-1/build/rtptools-1.22/.stamp_downloaded] Error 1
make: Leaving directory '/workdir/instance-0/buildroot'