Hi,

When entering `guix shell -CF guile[@3]`,  I receive the following 
error:
"ldconfig: /lib/libguile-3.0.so.1.6.0-gdb.scm is not an ELF file - it 
has the wrong magic bytes at the start."

Here is the information for my version of Guix:
```
(channel
        (name 'guix)
        (url "<https://git.savannah.gnu.org/git/guix.git>")
        (branch "master")
        (commit
          "a0508975dd6c70a2d2997a75c302a9fd42f7c370")
        (introduction
          (make-channel-introduction
            "9edb3f66fd807b096b48283debdcddccfea34bad"
            (openpgp-fingerprint
              "BBB0 2DDF 2CEA F6A8 0D1D  E643 A2A0 6DF2 A33A 54FA")))
```

Thanks,
Juli