cargo-debstatus: Connection timed out (os error 110)

Hello,

I am on my way to package a software partially written in rust and in python.
I may add that rust is new for me.
Whatever, I gave it a try to cargo-debstatus,
but it keeps stalling and terminating with the message

Error: A worker crashed
  
Caused by:
     0: error connecting to server: Connection timed out (os error 110)
     1: Connection timed out (os error 110)

Can anyone give a hint to solve this issue ?

Best wishes,
Jerome