slim patch does not apply

[ng0]

Tried a system reconfigure of one of the GuixSD systems, after I synced
with head, got this when it came to slim:

patching file app.cpp
patching file panel.cpp
Hunk #1 succeeded at 266 (offset 6 lines).
patching file panel.cpp
/gnu/store/ni491r4ffm03v0cr70df12lwiq826das-patch-2.7.5/bin/patch: **** 
malformed patch at line 17: @@ -52,6 +52,7 @@

source is under 'slim-1.3.6'
applying '/gnu/store/33kil80w4wjpzxinv57qcb2igjrzhdyq-slim-config.patch'...
applying '/gnu/store/n77my8565rm1fac5bh6ypy3cb2cm99yf-slim-reset.patch'...
applying '/gnu/store/cf2zhy6daablf5fwm2ip3f33im75ndhy-slim-login.patch'...
builder for `/gnu/store/250f9f7q4j5cj7xcp04rh97jkrfb50x3-slim-1.3.6.tar.xz.drv' 
failed to produce output path 
`/gnu/store/v6cpagdybgdj9pi3mgrv9l4315l1smki-slim-1.3.6.tar.xz'
@ build-failed 
/gnu/store/250f9f7q4j5cj7xcp04rh97jkrfb50x3-slim-1.3.6.tar.xz.drv - 1 builder 
for `/gnu/store/250f9f7q4j5cj7xcp04rh97jkrfb50x3-slim-1.3.6.tar.xz.drv' failed 
to produce output path 
`/gnu/store/v6cpagdybgdj9pi3mgrv9l4315l1smki-slim-1.3.6.tar.xz'
guix build: error: build failed: build of 
`/gnu/store/250f9f7q4j5cj7xcp04rh97jkrfb50x3-slim-1.3.6.tar.xz.drv' failed