Unable to download trunk builds in Linux

[Meren]

Hello, I'm using Linux Mint 16.04 MATE desktop, and I'm having problems downloading the offline trunk build. I've added the repository and signing key as directed on http://crawl.develz.org/trunk/ but when I refresh my package manager, I get the following error.

  Code:

W: http://crawl.develz.org/debian/dists/crawl/InRelease: Signature by key 115A1FFD4970F67327E4CAB0ABD5C2C3C965A6F4 uses weak digest algorithm (SHA1)

Are offline trunk builds no longer supported, or am I doing something wrong?

[duvessa]

You're not doing anything wrong. apt disabled support for SHA-1 a while ago. Whoever maintains the Debian builds needs to switch to an acceptable encryption algorithm.