failed to compute the derivation for Guix, host version: "0.16.0-3.6ddc63e"

failed to compute the derivation for Guix, host version: "0.16.0-3.6ddc63e"

[Giovanni Biscuolo]

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Hi,

today I made a guix pull on a test machine (probably I messed up
something?), from root account using this command:

--8<---------------cut here---------------start------------->8---
root@guixsdtest ~# time guix pull --dry-run > guix-pull.log 2>&1

real    16m6.518s
user    3m6.573s
sys     0m6.606s
--8<---------------cut here---------------end--------------->8---

it took quite a lot, I expected this to be much more quick due to
--dry-run

anyway the (very long) guix-pull.log ends with:

--8<---------------cut here---------------start------------->8---
srfi/srfi-1.scm:592:17: In procedure map1:
Throw to key `srfi-34' with args `(#<condition &nix-protocol-error [message: "build of `/gnu/store/cz4sr5whzf3qhp8c47bzlfzcxxwl485i-python2-2.7.15.drv' failed" status: 100] a0980f0>)'.
guix pull: error: You found a bug: the program '/gnu/store/bmbjmh64xk6hr632balpfllfs0v7768i-compute-guix-derivation'
failed to compute the derivation for Guix (version: "adb158b7396cbdcda347fa298978408e531a03fd"; system: "x86_64-linux";
host version: "0.16.0-3.6ddc63e"; pull-version: 1).
Please report it by email to <bug-guix@gnu.org>.
--8<---------------cut here---------------end--------------->8---

I have two questions:

1. am I wrong or "guix pull --dry-run" is not supposed tu build
anything?

2. is it really useful I report this to bug-guix or it's just a spuriuos
bug due to something I could have messed up?

thanks!
Gio

-- 
Giovanni Biscuolo

Xelera IT Infrastructures

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