smv release script fails on `apt-key`

[AliTajeldin]

We had issues with pgp.mit.edu in the past but they were resolved within hours. This has been failing for two days. The apt-key command finally worked today in an ubuntu docker image, but the release script still failed.

Step 27/36 : RUN echo "deb http://cran.rstudio.com/bin/linux/debian lenny-cran/" >> /etc/apt/source.list &&    apt-key adv --keyserver hkp://pgp.mit.edu --recv-key 381BA480 &&    apt-get update &&    apt-get install -y r-base &&    apt-get install -y sudo &&    apt-get install -y vim &&    apt-get install -y git &&    apt-get install -y graphviz
 ---> Running in e9f504214a58
Warning: apt-key output should not be parsed (stdout is not a terminal)
Executing: /tmp/apt-key-gpghome.LGkkOmoZHO/gpg.1.sh --keyserver hkp://pgp.mit.edu --recv-key 381BA480
gpg: keyserver receive failed: No data
The command '/bin/sh -c echo "deb http://cran.rstudio.com/bin/linux/debian lenny-cran/" >> /etc/apt/source.list &&    apt-key adv --keyserver hkp://pgp.mit.edu --recv-key 381BA480 &&    apt-get update &&    apt-get install -y r-base &&    apt-get install -y sudo &&    apt-get install -y vim &&    apt-get install -y git &&    apt-get install -y graphviz' returned a non-zero code: 2
make: *** [docker_smv] Error 2

[laneb]

Fwiw I had this fail for 24 hours once. Pretty annoying. I left a note in #1316 that we can remove the apt-key line once we removed the dependency on rbase.