'guix pull' fails when the host Guix runs on Guile 2.0

> after running `guix pull`:

>

> ```

> Updating from Git repository at '

> https://git.savannah.gnu.org/git/guix.git'...

> Building from Git commit 9e783d0bf22a7ff965105eb45f6c179a832bbabf...

> guile: warning: failed to install locale

> Computing Guix derivation for 'x86_64-linux'... /Backtrace:

> 9 (primitive-load "/gnu/store/2m09y8vajsla3zdlk28rcfdi3zq?")

> In ice-9/eval.scm:

> 155:9 8 (_ _)

> 159:9 7 (_ #(#(#(#(#(#(#(#(#(#(#(?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?))

> In ./guix/store.scm:

> 1592:24 6 (run-with-store _ _ #:guile-for-build _ #:system _ # _)

> In ./guix/self.scm:

> 918:16 5 (_ _)

> 492:4 4 (compiled-guix "/gnu/store/91a7if3r1h6x4y9vigzbw6y1rhi?"

> ?)

> In srfi/srfi-1.scm:

> 679:15 3 (append-map _ _ . _)

> 592:17 2 (map1 (#f #<package guile2.0-gnutls@3.5.18 gnu/packa?> ?))

> In ./guix/self.scm:

> 494:31 1 (_ _)

> In ./guix/packages.scm:

> 743:21 0 (package-transitive-propagated-inputs #f)

>

> ./guix/packages.scm:743:21: In procedure package-transitive-propagated-

> inputs:

> In procedure struct_vtable: Wrong type argument in position 1

> (expecting struct): #f

> guix pull: error: You found a bug: the program

> '/gnu/store/2m09y8vajsla3zdlk28rcfdi3zq7cvzq-compute-guix-derivation'

> failed to compute the derivation for Guix (version:

> "9e783d0bf22a7ff965105eb45f6c179a832bbabf"; system: "x86_64-linux";

> host version: "0.15.0"; pull-version: 1).

> Please report it by email to <bug-guix@gnu.org>.

> ```

> Thanks for your report. I pulled v0.15.0 and from there tried to

> pull

> the above commit, but I couldn’t reproduce the bug above.

>

> Does it still occur for you?

> How did you install Guix? It seems to be running on Guile 2.0 (not

> 2.2), can you confirm?

> On Mon, 2018-10-08 at 22:47 +0200, Ludovic Courtès wrote:

>> Thanks for your report. I pulled v0.15.0 and from there tried to

>> pull

>> the above commit, but I couldn’t reproduce the bug above.

>>

>> Does it still occur for you?

>

> Yes, I'm still getting this error, although with different program and

> guix version hashes which frequently change.

>

>> How did you install Guix? It seems to be running on Guile 2.0 (not

>> 2.2), can you confirm?

>

> I installed via the Fedora 28 COPR at

> https://copr.fedorainfracloud.org/coprs/lantw44/guix/. I'm 90% sure I'm

> running Guile 2.0, even though I have both 2.0 and 2.2 installed via

> dnf.

> Hi Michael,

>

> Michael Bowcutt <mwb71@case.edu> skribis:

>

> > On Mon, 2018-10-08 at 22:47 +0200, Ludovic Courtès wrote:

> > > Thanks for your report. I pulled v0.15.0 and from there tried to

> > > pull

> > > the above commit, but I couldn’t reproduce the bug above.

> > >

> > > Does it still occur for you?

> >

> > Yes, I'm still getting this error, although with different program

> > and

> > guix version hashes which frequently change.

> >

> > > How did you install Guix? It seems to be running on Guile 2.0

> > > (not

> > > 2.2), can you confirm?

> >

> > I installed via the Fedora 28 COPR at

> > https://copr.fedorainfracloud.org/coprs/lantw44/guix/. I'm 90% sure

> > I'm

> > running Guile 2.0, even though I have both 2.0 and 2.2 installed

> > via

> > dnf.

>

> I see. I believe commit 099bb0175f681e5f68dafb8ad973866f31fe515c

> fixes

> the problem. With this commit, running ‘guix pull’ will always give

> you, under ~/.config/guix/current, a new Guix running on Guile 2.2.

>

> Could you try running ‘guix pull’ and see if it works now?

> Besides, I’d like to drop Guile 2.0 support soon, so if you could

> tell

> the COPR packagers to switch to Guile 2.2, that’d be great. :-)

> On Wed, 2018-10-10 at 15:01 +0200, Ludovic Courtès wrote:

>> I see. I believe commit 099bb0175f681e5f68dafb8ad973866f31fe515c

>> fixes

>> the problem. With this commit, running ‘guix pull’ will always give

>> you, under ~/.config/guix/current, a new Guix running on Guile 2.2.

>>

>> Could you try running ‘guix pull’ and see if it works now?

>

> I can confirm that I'm no longer running into this issue, `guix pull`

> finished successfully!