Subject: bug#37694: closed (Re: bug#37694: Problem with guix pull from local repository)

From: [email-masked] (GNU bug Tracking System)
Date: Thu, 10 Oct 2019 18:14:02 +0000

Your bug report

#37694: Problem with guix pull from local repository

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
37694: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=37694
GNU Bug Tracking System
Contact [email-masked] with problems

Subject: Re: bug#37694: Problem with guix pull from local repository
From: Marius Bakke <[email-masked]>
To: Tim Gesthuizen <[email-masked]>, [email-masked]
Date: Thu, 10 Oct 2019 20:13:45 +0200
List-Id: <debbugs-submit.debbugs.gnu.org>

Hello Tim,

Tim Gesthuizen via Bug reports for GNU Guix <[email-masked]> writes:

> Hi,
> Guix tells me to report the following so I do:
>
> I have a local Guix checkout and wanted to test a local change in
> action. So as root I executed:
>
>> guix pull --url="/home/tibbe/src/guix" --branch=master
>
> Which resulted in:
>
>> Updating channel 'guix' from Git repository at '/home/tibbe/src/guix'...
>> Building from this channel:
>>   guix      /home/tibbe/src/guix	427e7a4
>> Computing Guix derivation for 'x86_64-linux'... \@ build-started /gnu/store/qyjfhsqsdy57hvh0axgr4l34v2a4d75m-guix-1.0.1-7.fc1fe72-checkout.drv - x86_64-linux /var/log/guix/drvs/qy//jfhsqsdy57hvh0axgr4l34v2a4d75m-guix-1.0.1-7.fc1fe72-checkout.drv.bz2 6671
>> @ build-log 6671 41
>> guile: warning: failed to install locale
>> @ build-log 6671 152
>> environment variable `PATH' set to `/gnu/store/i2cdl0hvrml8hjdqplqln8didnvxkgp5-gzip-1.10/bin:/gnu/store/jh17p4sns7dvbizwz58gdh953qpic144-tar-1.32/bin'
>> @ build-log 6671 116
>> Initialized empty Git repository in /gnu/store/sin7s2f4qw3f17fs8gfv4n059dciml9j-guix-1.0.1-7.fc1fe72-checkout/.git/
>> |@ build-log 6671 102
>> error: Server does not allow request for unadvertised object fc1fe722a05318ac05a71a0b127f231631e2843f
>> @ build-log 6671 55
>> Failed to do a shallow fetch; retrying a full fetch...
>> /@ build-log 6671 41
>> From https://git.savannah.gnu.org/r/guix
>> @ build-log 6671 68
>>  * [new branch]      core-updates            -> origin/core-updates
>> @ build-log 6671 68
>>  * [new branch]      guile-daemon            -> origin/guile-daemon
>> @ build-log 6671 75
>>  * [new branch]      imagemagick-updates     -> origin/imagemagick-updates
>> @ build-log 6671 76
>>  * [new branch]      install-doc-overhaul    -> origin/install-doc-overhaul
>> @ build-log 6671 62
>>  * [new branch]      master                  -> origin/master
>> @ build-log 6671 59
>>  * [new branch]      nix                     -> origin/nix
>> @ build-log 6671 70
>>  * [new branch]      python-updates          -> origin/python-updates
>> @ build-log 6671 66
>>  * [new branch]      qt-updates              -> origin/qt-updates
>> @ build-log 6671 75
>>  * [new branch]      reproduce-bug-29774     -> origin/reproduce-bug-29774
>> @ build-log 6671 61
>>  * [new branch]      rhel6                   -> origin/rhel6
>> @ build-log 6671 63
>>  * [new branch]      snapper                 -> origin/snapper
>> @ build-log 6671 63
>>  * [new branch]      staging                 -> origin/staging
>> @ build-log 6671 70
>>  * [new branch]      version-0.10.0          -> origin/version-0.10.0
>> @ build-log 6671 70
>>  * [new branch]      version-0.11.0          -> origin/version-0.11.0
>> @ build-log 6671 70
>>  * [new branch]      version-0.12.0          -> origin/version-0.12.0
>> @ build-log 6671 70
>>  * [new branch]      version-0.13.0          -> origin/version-0.13.0
>> @ build-log 6671 70
>>  * [new branch]      version-0.14.0          -> origin/version-0.14.0
>> @ build-log 6671 70
>>  * [new branch]      version-0.15.0          -> origin/version-0.15.0
>> @ build-log 6671 70
>>  * [new branch]      version-0.16.0          -> origin/version-0.16.0
>> @ build-log 6671 69
>>  * [new branch]      version-0.8.3           -> origin/version-0.8.3
>> @ build-log 6671 69
>>  * [new branch]      version-0.9.0           -> origin/version-0.9.0
>> @ build-log 6671 69
>>  * [new branch]      version-1.0.0           -> origin/version-1.0.0
>> @ build-log 6671 69
>>  * [new branch]      version-1.0.1           -> origin/version-1.0.1
>> @ build-log 6671 69
>>  * [new branch]      wip-bootstrap           -> origin/wip-bootstrap
>> @ build-log 6671 78
>>  * [new branch]      wip-build-systems-gexp  -> origin/wip-build-systems-gexp
>> @ build-log 6671 69
>>  * [new branch]      wip-buildroot           -> origin/wip-buildroot
>> @ build-log 6671 65
>>  * [new branch]      wip-check               -> origin/wip-check
>> @ build-log 6671 69
>>  * [new branch]      wip-container           -> origin/wip-container
>> @ build-log 6671 72
>>  * [new branch]      wip-cross-system        -> origin/wip-cross-system
>> @ build-log 6671 66
>>  * [new branch]      wip-deploy              -> origin/wip-deploy
>> @ build-log 6671 67
>>  * [new branch]      wip-deploy2             -> origin/wip-deploy2
>> @ build-log 6671 71
>>  * [new branch]      wip-gexp-grafts         -> origin/wip-gexp-grafts
>> @ build-log 6671 72
>>  * [new branch]      wip-gexp-hygiene        -> origin/wip-gexp-hygiene
>> @ build-log 6671 69
>>  * [new branch]      wip-git-https           -> origin/wip-git-https
>> @ build-log 6671 69
>>  * [new branch]      wip-gnome3.30           -> origin/wip-gnome3.30
>> @ build-log 6671 75
>>  * [new branch]      wip-go-build-system     -> origin/wip-go-build-system
>> @ build-log 6671 66
>>  * [new branch]      wip-grafts              -> origin/wip-grafts
>> @ build-log 6671 75
>>  * [new branch]      wip-haskell-updates     -> origin/wip-haskell-updates
>> @ build-log 6671 64
>>  * [new branch]      wip-hurd                -> origin/wip-hurd
>> @ build-log 6671 64
>>  * [new branch]      wip-ipfs                -> origin/wip-ipfs
>> @ build-log 6671 76
>>  * [new branch]      wip-ipfs-substitutes    -> origin/wip-ipfs-substitutes
>> @ build-log 6671 65
>>  * [new branch]      wip-ipfs2               -> origin/wip-ipfs2
>> @ build-log 6671 83
>>  * [new branch]      wip-kde-frameworks-update -> origin/wip-kde-frameworks-update
>> @ build-log 6671 70
>>  * [new branch]      wip-loongson2f          -> origin/wip-loongson2f
>> @ build-log 6671 71
>>  * [new branch]      wip-mediagoblin         -> origin/wip-mediagoblin
>> @ build-log 6671 67
>>  * [new branch]      wip-netlink             -> origin/wip-netlink
>> @ build-log 6671 79
>>  * [new branch]      wip-offload-compression -> origin/wip-offload-compression
>> @ build-log 6671 65
>>  * [new branch]      wip-perl6               -> origin/wip-perl6
>> @ build-log 6671 67
>>  * [new branch]      wip-potluck             -> origin/wip-potluck
>> @ build-log 6671 65
>>  * [new branch]      wip-rails               -> origin/wip-rails
>> @ build-log 6671 64
>>  * [new branch]      wip-rust                -> origin/wip-rust
>> @ build-log 6671 67
>>  * [new branch]      wip-texlive             -> origin/wip-texlive
>> @ build-log 6671 76
>>  * [new branch]      wip-texlive-importer    -> origin/wip-texlive-importer
>> \@ build-log 6671 73
>>  * [new tag]               bootstrap-20190815      -> bootstrap-20190815
>> @ build-log 6671 59
>>  * [new tag]               v0.0                    -> v0.0
>> @ build-log 6671 59
>>  * [new tag]               v0.1                    -> v0.1
>> @ build-log 6671 62
>>  * [new tag]               v0.10.0                 -> v0.10.0
>> @ build-log 6671 62
>>  * [new tag]               v0.11.0                 -> v0.11.0
>> @ build-log 6671 62
>>  * [new tag]               v0.12.0                 -> v0.12.0
>> @ build-log 6671 62
>>  * [new tag]               v0.13.0                 -> v0.13.0
>> @ build-log 6671 62
>>  * [new tag]               v0.14.0                 -> v0.14.0
>> @ build-log 6671 62
>>  * [new tag]               v0.15.0                 -> v0.15.0
>> @ build-log 6671 62
>>  * [new tag]               v0.16.0                 -> v0.16.0
>> @ build-log 6671 59
>>  * [new tag]               v0.2                    -> v0.2
>> @ build-log 6671 59
>>  * [new tag]               v0.3                    -> v0.3
>> @ build-log 6671 59
>>  * [new tag]               v0.4                    -> v0.4
>> @ build-log 6671 59
>>  * [new tag]               v0.5                    -> v0.5
>> @ build-log 6671 59
>>  * [new tag]               v0.6                    -> v0.6
>> @ build-log 6671 59
>>  * [new tag]               v0.7                    -> v0.7
>> @ build-log 6671 59
>>  * [new tag]               v0.8                    -> v0.8
>> @ build-log 6671 61
>>  * [new tag]               v0.8.1                  -> v0.8.1
>> @ build-log 6671 61
>>  * [new tag]               v0.8.2                  -> v0.8.2
>> @ build-log 6671 61
>>  * [new tag]               v0.8.3                  -> v0.8.3
>> @ build-log 6671 61
>>  * [new tag]               v0.9.0                  -> v0.9.0
>> @ build-log 6671 61
>>  * [new tag]               v1.0.0                  -> v1.0.0
>> @ build-log 6671 61
>>  * [new tag]               v1.0.1                  -> v1.0.1
>> |@ build-log 6671 580
>> Note: switching to 'fc1fe722a05318ac05a71a0b127f231631e2843f'.
>> 
>> You are in 'detached HEAD' state. You can look around, make experimental
>> changes and commit them, and you can discard any commits you make in this
>> state without impacting any branches by switching back to a branch.
>> 
>> If you want to create a new branch to retain commits you create, you may
>> do so (now or later) by using -c with the switch command. Example:
>> 
>>   git switch -c <new-branch-name>
>> 
>> Or undo this operation with:
>> 
>>   git switch -
>> 
>> Turn off this advice by setting config variable advice.detachedHead to false
>> 
>> @ build-log 6671 49
>> HEAD is now at fc1fe722a0 gnu: Add Guix-Jupyter.
>> /@ hash-mismatch /gnu/store/sin7s2f4qw3f17fs8gfv4n059dciml9j-guix-1.0.1-7.fc1fe72-checkout r:sha256 1j2d9anxgybv86pxcn1zdv121hb4nmjjp5ngx365fnd0mcg8q1iw 0yx19hxvmkr6ar65ym87xd83n6hz02mr7ibwis7i8wah85ypfq26
>> hash mismatch for store item '/gnu/store/sin7s2f4qw3f17fs8gfv4n059dciml9j-guix-1.0.1-7.fc1fe72-checkout'
>> @ build-failed /gnu/store/qyjfhsqsdy57hvh0axgr4l34v2a4d75m-guix-1.0.1-7.fc1fe72-checkout.drv - 1 hash mismatch for store item '/gnu/store/sin7s2f4qw3f17fs8gfv4n059dciml9j-guix-1.0.1-7.fc1fe72-checkout'
>> cannot build derivation `/gnu/store/w25r370p5zz5g56z6vgxqplrazrr2fr6-guix-daemon-1.0.1-7.fc1fe72.drv': 1 dependencies couldn't be built
>> Backtrace:
>> In ice-9/eval.scm:
>>     159:9 19 (_ #(#(#(#(#(#(#(#(#(#(#(?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?))
>> In ./guix/store.scm:
>>   1803:24 18 (run-with-store #<store-connection 256.99 7f42f39b30c0> ?)
>>    1673:8 17 (_ _)
>> In ./guix/gexp.scm:
>>     839:2 16 (_ _)
>>     695:2 15 (_ _)
>> In ./guix/monads.scm:
>>     482:9 14 (_ _)
>> In ./guix/gexp.scm:
>>    590:13 13 (_ _)
>> In ./guix/store.scm:
>>    1673:8 12 (_ _)
>> In ./guix/gexp.scm:
>>     839:2 11 (_ _)
>>     695:2 10 (_ _)
>> In ./guix/monads.scm:
>>     482:9  9 (_ _)
>> In ./guix/gexp.scm:
>>    590:13  8 (_ _)
>> In ./guix/store.scm:
>>    1673:8  7 (_ _)
>>    1673:8  6 (_ _)
>>   1696:38  5 (_ #<store-connection 256.99 7f42e32fb240>)
>> In ./guix/packages.scm:
>>    948:16  4 (cache! #<weak-table 1345/1759> #<package guix-daemon@?> ?)
>> In ./guix/grafts.scm:
>>     323:4  3 (graft-derivation #<store-connection 256.99 7f42e32fb2?> ?)
>>     172:4  2 (references-oracle #<store-connection 256.99 7f42e32fb?> ?)
>>    182:20  1 (_ _ _)
>> In ./guix/store.scm:
>>   1203:15  0 (_ #<store-connection 256.99 7f42e32fb240> _ _)
>> 
>> ./guix/store.scm:1203:15: Throw to key `srfi-34' with args `(#<condition &store-protocol-error [message: "build of `/gnu/store/w25r370p5zz5g56z6vgxqplrazrr2fr6-guix-daemon-1.0.1-7.fc1fe72.drv' failed" status: 1] 7f42eb168600>)'.
>> guix pull: error: You found a bug: the program '/gnu/store/fy8kjc7kymh8r1g9sb3h4ky7z8s8b7zf-compute-guix-derivation'
>> failed to compute the derivation for Guix (version: "427e7a48f834be925e859d5884fa33650fe5e929"; system: "x86_64-linux";
>> host version: "8325e1f8c4ca8acff802d98887fbc1a6b467ae4c"; pull-version: 1).
>> Please report it by email to <[email-masked]>.
>
> Just for the record:
>> guix pull --url="file:///home/tibbe/src/guix" --branch master
>
> Did not do anything for quite some time so I killed it.
> It lookes to me like Guix just checks out the wrong thing which results
> in the hash mismatch.
> Probably the interface just is not meant to be used like I tried to do.
>
> I would appreciate feedback on how to do this properly,

This had nothing to do with your local checkout: it happened to everyone
who tried to 'guix pull' between commits 6c50e1dc0 and 2d821e4c7.

Sorry for the breakage!  If you rebase your branch, it should work :-)

Subject: Problem with guix pull from local repository
From: Tim Gesthuizen <[email-masked]>
To: [email-masked]
Date: Thu, 10 Oct 2019 20:04:31 +0200
List-Id: <debbugs-submit.debbugs.gnu.org>

Hi,
Guix tells me to report the following so I do:

I have a local Guix checkout and wanted to test a local change in
action. So as root I executed:

> guix pull --url="/home/tibbe/src/guix" --branch=master

Which resulted in:

> Updating channel 'guix' from Git repository at '/home/tibbe/src/guix'...
> Building from this channel:
>   guix      /home/tibbe/src/guix	427e7a4
> Computing Guix derivation for 'x86_64-linux'... \@ build-started /gnu/store/qyjfhsqsdy57hvh0axgr4l34v2a4d75m-guix-1.0.1-7.fc1fe72-checkout.drv - x86_64-linux /var/log/guix/drvs/qy//jfhsqsdy57hvh0axgr4l34v2a4d75m-guix-1.0.1-7.fc1fe72-checkout.drv.bz2 6671
> @ build-log 6671 41
> guile: warning: failed to install locale
> @ build-log 6671 152
> environment variable `PATH' set to `/gnu/store/i2cdl0hvrml8hjdqplqln8didnvxkgp5-gzip-1.10/bin:/gnu/store/jh17p4sns7dvbizwz58gdh953qpic144-tar-1.32/bin'
> @ build-log 6671 116
> Initialized empty Git repository in /gnu/store/sin7s2f4qw3f17fs8gfv4n059dciml9j-guix-1.0.1-7.fc1fe72-checkout/.git/
> |@ build-log 6671 102
> error: Server does not allow request for unadvertised object fc1fe722a05318ac05a71a0b127f231631e2843f
> @ build-log 6671 55
> Failed to do a shallow fetch; retrying a full fetch...
> /@ build-log 6671 41
> From https://git.savannah.gnu.org/r/guix
> @ build-log 6671 68
>  * [new branch]      core-updates            -> origin/core-updates
> @ build-log 6671 68
>  * [new branch]      guile-daemon            -> origin/guile-daemon
> @ build-log 6671 75
>  * [new branch]      imagemagick-updates     -> origin/imagemagick-updates
> @ build-log 6671 76
>  * [new branch]      install-doc-overhaul    -> origin/install-doc-overhaul
> @ build-log 6671 62
>  * [new branch]      master                  -> origin/master
> @ build-log 6671 59
>  * [new branch]      nix                     -> origin/nix
> @ build-log 6671 70
>  * [new branch]      python-updates          -> origin/python-updates
> @ build-log 6671 66
>  * [new branch]      qt-updates              -> origin/qt-updates
> @ build-log 6671 75
>  * [new branch]      reproduce-bug-29774     -> origin/reproduce-bug-29774
> @ build-log 6671 61
>  * [new branch]      rhel6                   -> origin/rhel6
> @ build-log 6671 63
>  * [new branch]      snapper                 -> origin/snapper
> @ build-log 6671 63
>  * [new branch]      staging                 -> origin/staging
> @ build-log 6671 70
>  * [new branch]      version-0.10.0          -> origin/version-0.10.0
> @ build-log 6671 70
>  * [new branch]      version-0.11.0          -> origin/version-0.11.0
> @ build-log 6671 70
>  * [new branch]      version-0.12.0          -> origin/version-0.12.0
> @ build-log 6671 70
>  * [new branch]      version-0.13.0          -> origin/version-0.13.0
> @ build-log 6671 70
>  * [new branch]      version-0.14.0          -> origin/version-0.14.0
> @ build-log 6671 70
>  * [new branch]      version-0.15.0          -> origin/version-0.15.0
> @ build-log 6671 70
>  * [new branch]      version-0.16.0          -> origin/version-0.16.0
> @ build-log 6671 69
>  * [new branch]      version-0.8.3           -> origin/version-0.8.3
> @ build-log 6671 69
>  * [new branch]      version-0.9.0           -> origin/version-0.9.0
> @ build-log 6671 69
>  * [new branch]      version-1.0.0           -> origin/version-1.0.0
> @ build-log 6671 69
>  * [new branch]      version-1.0.1           -> origin/version-1.0.1
> @ build-log 6671 69
>  * [new branch]      wip-bootstrap           -> origin/wip-bootstrap
> @ build-log 6671 78
>  * [new branch]      wip-build-systems-gexp  -> origin/wip-build-systems-gexp
> @ build-log 6671 69
>  * [new branch]      wip-buildroot           -> origin/wip-buildroot
> @ build-log 6671 65
>  * [new branch]      wip-check               -> origin/wip-check
> @ build-log 6671 69
>  * [new branch]      wip-container           -> origin/wip-container
> @ build-log 6671 72
>  * [new branch]      wip-cross-system        -> origin/wip-cross-system
> @ build-log 6671 66
>  * [new branch]      wip-deploy              -> origin/wip-deploy
> @ build-log 6671 67
>  * [new branch]      wip-deploy2             -> origin/wip-deploy2
> @ build-log 6671 71
>  * [new branch]      wip-gexp-grafts         -> origin/wip-gexp-grafts
> @ build-log 6671 72
>  * [new branch]      wip-gexp-hygiene        -> origin/wip-gexp-hygiene
> @ build-log 6671 69
>  * [new branch]      wip-git-https           -> origin/wip-git-https
> @ build-log 6671 69
>  * [new branch]      wip-gnome3.30           -> origin/wip-gnome3.30
> @ build-log 6671 75
>  * [new branch]      wip-go-build-system     -> origin/wip-go-build-system
> @ build-log 6671 66
>  * [new branch]      wip-grafts              -> origin/wip-grafts
> @ build-log 6671 75
>  * [new branch]      wip-haskell-updates     -> origin/wip-haskell-updates
> @ build-log 6671 64
>  * [new branch]      wip-hurd                -> origin/wip-hurd
> @ build-log 6671 64
>  * [new branch]      wip-ipfs                -> origin/wip-ipfs
> @ build-log 6671 76
>  * [new branch]      wip-ipfs-substitutes    -> origin/wip-ipfs-substitutes
> @ build-log 6671 65
>  * [new branch]      wip-ipfs2               -> origin/wip-ipfs2
> @ build-log 6671 83
>  * [new branch]      wip-kde-frameworks-update -> origin/wip-kde-frameworks-update
> @ build-log 6671 70
>  * [new branch]      wip-loongson2f          -> origin/wip-loongson2f
> @ build-log 6671 71
>  * [new branch]      wip-mediagoblin         -> origin/wip-mediagoblin
> @ build-log 6671 67
>  * [new branch]      wip-netlink             -> origin/wip-netlink
> @ build-log 6671 79
>  * [new branch]      wip-offload-compression -> origin/wip-offload-compression
> @ build-log 6671 65
>  * [new branch]      wip-perl6               -> origin/wip-perl6
> @ build-log 6671 67
>  * [new branch]      wip-potluck             -> origin/wip-potluck
> @ build-log 6671 65
>  * [new branch]      wip-rails               -> origin/wip-rails
> @ build-log 6671 64
>  * [new branch]      wip-rust                -> origin/wip-rust
> @ build-log 6671 67
>  * [new branch]      wip-texlive             -> origin/wip-texlive
> @ build-log 6671 76
>  * [new branch]      wip-texlive-importer    -> origin/wip-texlive-importer
> \@ build-log 6671 73
>  * [new tag]               bootstrap-20190815      -> bootstrap-20190815
> @ build-log 6671 59
>  * [new tag]               v0.0                    -> v0.0
> @ build-log 6671 59
>  * [new tag]               v0.1                    -> v0.1
> @ build-log 6671 62
>  * [new tag]               v0.10.0                 -> v0.10.0
> @ build-log 6671 62
>  * [new tag]               v0.11.0                 -> v0.11.0
> @ build-log 6671 62
>  * [new tag]               v0.12.0                 -> v0.12.0
> @ build-log 6671 62
>  * [new tag]               v0.13.0                 -> v0.13.0
> @ build-log 6671 62
>  * [new tag]               v0.14.0                 -> v0.14.0
> @ build-log 6671 62
>  * [new tag]               v0.15.0                 -> v0.15.0
> @ build-log 6671 62
>  * [new tag]               v0.16.0                 -> v0.16.0
> @ build-log 6671 59
>  * [new tag]               v0.2                    -> v0.2
> @ build-log 6671 59
>  * [new tag]               v0.3                    -> v0.3
> @ build-log 6671 59
>  * [new tag]               v0.4                    -> v0.4
> @ build-log 6671 59
>  * [new tag]               v0.5                    -> v0.5
> @ build-log 6671 59
>  * [new tag]               v0.6                    -> v0.6
> @ build-log 6671 59
>  * [new tag]               v0.7                    -> v0.7
> @ build-log 6671 59
>  * [new tag]               v0.8                    -> v0.8
> @ build-log 6671 61
>  * [new tag]               v0.8.1                  -> v0.8.1
> @ build-log 6671 61
>  * [new tag]               v0.8.2                  -> v0.8.2
> @ build-log 6671 61
>  * [new tag]               v0.8.3                  -> v0.8.3
> @ build-log 6671 61
>  * [new tag]               v0.9.0                  -> v0.9.0
> @ build-log 6671 61
>  * [new tag]               v1.0.0                  -> v1.0.0
> @ build-log 6671 61
>  * [new tag]               v1.0.1                  -> v1.0.1
> |@ build-log 6671 580
> Note: switching to 'fc1fe722a05318ac05a71a0b127f231631e2843f'.
> 
> You are in 'detached HEAD' state. You can look around, make experimental
> changes and commit them, and you can discard any commits you make in this
> state without impacting any branches by switching back to a branch.
> 
> If you want to create a new branch to retain commits you create, you may
> do so (now or later) by using -c with the switch command. Example:
> 
>   git switch -c <new-branch-name>
> 
> Or undo this operation with:
> 
>   git switch -
> 
> Turn off this advice by setting config variable advice.detachedHead to false
> 
> @ build-log 6671 49
> HEAD is now at fc1fe722a0 gnu: Add Guix-Jupyter.
> /@ hash-mismatch /gnu/store/sin7s2f4qw3f17fs8gfv4n059dciml9j-guix-1.0.1-7.fc1fe72-checkout r:sha256 1j2d9anxgybv86pxcn1zdv121hb4nmjjp5ngx365fnd0mcg8q1iw 0yx19hxvmkr6ar65ym87xd83n6hz02mr7ibwis7i8wah85ypfq26
> hash mismatch for store item '/gnu/store/sin7s2f4qw3f17fs8gfv4n059dciml9j-guix-1.0.1-7.fc1fe72-checkout'
> @ build-failed /gnu/store/qyjfhsqsdy57hvh0axgr4l34v2a4d75m-guix-1.0.1-7.fc1fe72-checkout.drv - 1 hash mismatch for store item '/gnu/store/sin7s2f4qw3f17fs8gfv4n059dciml9j-guix-1.0.1-7.fc1fe72-checkout'
> cannot build derivation `/gnu/store/w25r370p5zz5g56z6vgxqplrazrr2fr6-guix-daemon-1.0.1-7.fc1fe72.drv': 1 dependencies couldn't be built
> Backtrace:
> In ice-9/eval.scm:
>     159:9 19 (_ #(#(#(#(#(#(#(#(#(#(#(?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?))
> In ./guix/store.scm:
>   1803:24 18 (run-with-store #<store-connection 256.99 7f42f39b30c0> ?)
>    1673:8 17 (_ _)
> In ./guix/gexp.scm:
>     839:2 16 (_ _)
>     695:2 15 (_ _)
> In ./guix/monads.scm:
>     482:9 14 (_ _)
> In ./guix/gexp.scm:
>    590:13 13 (_ _)
> In ./guix/store.scm:
>    1673:8 12 (_ _)
> In ./guix/gexp.scm:
>     839:2 11 (_ _)
>     695:2 10 (_ _)
> In ./guix/monads.scm:
>     482:9  9 (_ _)
> In ./guix/gexp.scm:
>    590:13  8 (_ _)
> In ./guix/store.scm:
>    1673:8  7 (_ _)
>    1673:8  6 (_ _)
>   1696:38  5 (_ #<store-connection 256.99 7f42e32fb240>)
> In ./guix/packages.scm:
>    948:16  4 (cache! #<weak-table 1345/1759> #<package guix-daemon@?> ?)
> In ./guix/grafts.scm:
>     323:4  3 (graft-derivation #<store-connection 256.99 7f42e32fb2?> ?)
>     172:4  2 (references-oracle #<store-connection 256.99 7f42e32fb?> ?)
>    182:20  1 (_ _ _)
> In ./guix/store.scm:
>   1203:15  0 (_ #<store-connection 256.99 7f42e32fb240> _ _)
> 
> ./guix/store.scm:1203:15: Throw to key `srfi-34' with args `(#<condition &store-protocol-error [message: "build of `/gnu/store/w25r370p5zz5g56z6vgxqplrazrr2fr6-guix-daemon-1.0.1-7.fc1fe72.drv' failed" status: 1] 7f42eb168600>)'.
> guix pull: error: You found a bug: the program '/gnu/store/fy8kjc7kymh8r1g9sb3h4ky7z8s8b7zf-compute-guix-derivation'
> failed to compute the derivation for Guix (version: "427e7a48f834be925e859d5884fa33650fe5e929"; system: "x86_64-linux";
> host version: "8325e1f8c4ca8acff802d98887fbc1a6b467ae4c"; pull-version: 1).
> Please report it by email to <[email-masked]>.

Just for the record:
> guix pull --url="file:///home/tibbe/src/guix" --branch master

Did not do anything for quite some time so I killed it.
It lookes to me like Guix just checks out the wrong thing which results
in the hash mismatch.
Probably the interface just is not meant to be used like I tried to do.

I would appreciate feedback on how to do this properly,
Tim.