[hsct]: Error: Configuration not found. Maybe you need to run init first?
>>> Fetching sources...
filename:'msim-1.3.8.1.tar.bz2' url:'http://d3s.mff.cuni.cz/~holub/sw/msim/msim-1.3.8.1.tar.bz2'
     -> Fetching msim-1.3.8.1.tar.bz2...
WARNING: The certificate is NOT trusted. The certificate issuer is unknown. 
[0] Downloading 'http://d3s.mff.cuni.cz/~holub/sw/msim/msim-1.3.8.1.tar.bz2' ...
HTTP response 302 Found [http://d3s.mff.cuni.cz/~holub/sw/msim/msim-1.3.8.1.tar.bz2]
Adding URL: https://d3s.mff.cuni.cz/~holub/sw/msim/msim-1.3.8.1.tar.bz2
[0] Downloading 'https://d3s.mff.cuni.cz/~holub/sw/msim/msim-1.3.8.1.tar.bz2' ...
HTTP response 302 Found [https://d3s.mff.cuni.cz/~holub/sw/msim/msim-1.3.8.1.tar.bz2]
Adding URL: https://d3s.mff.cuni.cz/legacy/~holub/sw/msim/msim-1.3.8.1.tar.bz2
[0] Downloading 'https://d3s.mff.cuni.cz/legacy/~holub/sw/msim/msim-1.3.8.1.tar.bz2' ...
HTTP ERROR response 503 Service Unavailable [https://d3s.mff.cuni.cz/legacy/~holub/sw/msim/msim-1.3.8.1.tar.bz2]
[hsct]: Error: Failed to fetch http://d3s.mff.cuni.cz/~holub/sw/msim/msim-1.3.8.1.tar.bz2.