Verification of qvm and quilc on Ubuntu 20.04 fails due to libffi.so.6 no longer used

Pre-Report Checklist

• [ X] I am running the latest versions of pyQuil and the Forest SDK
• [ X] I checked to make sure that this bug has not already been reported

Issue Description

I have tried to verify that qvm and quilc work correctly in Ubuntu 20.04, however I get en error

 qvm --version
Unhandled SIMPLE-ERROR in thread #<SB-THREAD:THREAD "main thread" RUNNING
                                    {10005C04F3}>:
  Error opening shared object "libffi.so.6":
  libffi.so.6: cannot open shared object file: No such file or directory.

Backtrace for: #<SB-THREAD:THREAD "main thread" RUNNING {10005C04F3}>
0: (SB-DEBUG::DEBUGGER-DISABLED-HOOK #<SIMPLE-ERROR "Error opening ~:[runtime~;shared object ~:*~S~]:
  ~A." {1000E05543}> #<unused argument> :QUIT T)
1: (SB-DEBUG::RUN-HOOK *INVOKE-DEBUGGER-HOOK* #<SIMPLE-ERROR "Error opening ~:[runtime~;shared object ~:*~S~]:
  ~A." {1000E05543}>)
2: (INVOKE-DEBUGGER #<SIMPLE-ERROR "Error opening ~:[runtime~;shared object ~:*~S~]:
  ~A." {1000E05543}>)
3: (ERROR "Error opening ~:[runtime~;shared object ~:*~S~]:
  ~A." "libffi.so.6" "libffi.so.6: cannot open shared object file: No such file or directory")
4: (SB-SYS:DLOPEN-OR-LOSE #S(SB-ALIEN::SHARED-OBJECT :PATHNAME #P"libffi.so.6" :NAMESTRING "libffi.so.6" :HANDLE NIL :DONT-SAVE NIL))
5: (SB-ALIEN::TRY-REOPEN-SHARED-OBJECT #S(SB-ALIEN::SHARED-OBJECT :PATHNAME #P"libffi.so.6" :NAMESTRING "libffi.so.6" :HANDLE NIL :DONT-SAVE NIL))
6: (SB-SYS:REOPEN-SHARED-OBJECTS)
7: (SB-IMPL::FOREIGN-REINIT)
8: (SB-IMPL::REINIT)
9: ((FLET SB-UNIX::BODY :IN SAVE-LISP-AND-DIE))
10: ((FLET "WITHOUT-INTERRUPTS-BODY-14" :IN SAVE-LISP-AND-DIE))
11: ((LABELS SB-IMPL::RESTART-LISP :IN SAVE-LISP-AND-DIE))

unhandled condition in --disable-debugger mode, quitting

Insert a short description of the bug here, along with what you expected the behavior to be.

Thanks for helping us improve pyQuil! 🙂

How to Reproduce

If useful, provide a numbered list of the steps that result in the error.

Otherwise, just fill out the “Code Snippet” and “Error Output” sections below.

Code Snippet

Include a snippet of the pyQuil code that produces the error here.

Error Output

Additionally, please copy and paste the output of the above code here.

Environment Context

Operating System: Ubuntu 20.04

Python Version (python -V): Python 3.9.7

Quilc Version (quilc --version):

QVM Version (qvm --version):

forest-sdk-2.23.0-linux-deb

Python Environment Details (pip freeze or conda list):

Copy and paste the output of `pip freeze` or `conda list` here.

[kalzoo]

@dbanty ftw!

[fieldofnodes]

@dbanty Brilliant!! I just did this, and BOOM – works.

Digest: sha256:9f05185cf529349282f2fe2670bebb669fca5a5fa98b76d228dbd0bbd88aa95c
Status: Downloaded newer image for rigetti/forest:rc
=========================================
=   WELCOME TO THE RIGETTI FOREST SDK   =
=========================================
Copyright (c) 2016-2019 Rigetti Computing

Python 3.7.13 (default, Apr 14 2022, 06:46:01) 
Type 'copyright', 'credits' or 'license' for more information
IPython 7.32.0 -- An enhanced Interactive Python. Type '?' for help.

In [1]: from pyquil import get_qc, Program
   ...: from pyquil.gates import H, CNOT, MEASURE
   ...: from pyquil.quilbase import Declare
   ...: 
   ...: program = Program(
   ...:     Declare("ro", "BIT", 2),
   ...:     H(0),
   ...:     CNOT(0, 1),
   ...:     MEASURE(0, ("ro", 0)),
   ...:     MEASURE(1, ("ro", 1)),
   ...: ).wrap_in_numshots_loop(10)
   ...: 
   ...: qc = get_qc("2q-qvm")
   ...: 
   ...: qc.run(qc.compile(program)).readout_data.get("ro")
Out[1]: 
array([[0, 0],
       [1, 1],
       [0, 0],
       [0, 0],
       [1, 1],
       [1, 1],
       [0, 0],
       [1, 1],
       [1, 1],
       [0, 0]])

In [2]: 

Thanks for the swift feedback.