Snap Installtion fails on Arch Linux due to wget/gnutls incompatibility

I am trying to set up the microstack snap on my Arch Linux box, but the installation runs into some kind of wget/gnutls problem when fetching the cirros image, I think. Here's the output of the failed snap installation:

```
[jonas@orchid ~]$ sudo snap install microstack --classic --beta
[sudo] password for jonas:
error: cannot perform the following tasks:
- Run configure hook of "microstack" snap if present (run hook "configure":
-----
net.ipv4.ip_forward = 1
Creating OpenStack Databases
Using conf file: /var/snap/microstack/common/etc/mysql/my.cnf
Using conf file: /var/snap/microstack/common/etc/mysql/my.cnf
Using conf file: /var/snap/microstack/common/etc/mysql/my.cnf
Using conf file: /var/snap/microstack/common/etc/mysql/my.cnf
Using conf file: /var/snap/microstack/common/etc/mysql/my.cnf
Using conf file: /var/snap/microstack/common/etc/mysql/my.cnf
Using conf file: /var/snap/microstack/common/etc/mysql/my.cnf
Using conf file: /var/snap/microstack/common/etc/mysql/my.cnf
Configuring RabbitMQ
              Starting broker... completed with 0 plugins.
Creating user "openstack" ...
Setting permissions for user "openstack" in vhost "/" ...
Waiting for glance to start.
Could not find resource cirros
wget: /snap/microstack/127/usr/lib/x86_64-linux-gnu/libgnutls.so.30: version `GNUTLS_3_6_3' not found (required by wget)
-----)
```

Some diagnostic info:

```
[jonas@orchid ~]$ snap --version
snap 2.42-2
snapd 2.42-2
series 16
arch -
kernel 5.3.6-arch1-1-ARCH
```

```
[jonas@orchid ~]$ snap list
Name Version Rev Tracking Publisher Notes
core 16-2.42 7917 stable canonical✓ core
core18 20191010 1223 stable canonical✓ base
gnome-3-28-1804 3.28.0-10-gaa70833.aa70833 71 stable canonical✓ -
gtk-common-themes 0.1-25-gcc83164 1353 stable canonical✓ -
hello-world 6.4 29 stable canonical✓ -
snap-store 20190829.daf5512 188 stable canonical✓ -
```

I am not really running Gnome on this system (only a handful of components), and instead use `i3wm` as my window manager. I installed `snapd` from the AUR, as instructed on the web pages and also set up the "classic" symlink and enabled the systemd service.

I do not have a lot of experience with the snap eco system so I cannot tell if the problem here lies with my base snap installation in general, or whether it is a concrete problem with the `microstack` snap itself, but the fact that the hello-world snap runs perfectly fine, suggests the latter.