Fails to build in Arch Linux chroot

[oatmealraisin]

Trying to build the PKGBUILD, it is currently failing in two places,

1. makedepends should include git, since this is a git source
2. During package, the build fails with this error:

==> Starting package()...
ninja: Entering directory `/build/fabric-cli-git/src/fabric-cli/build'
[0/1] Generating fabric-cli with a custom command
failed to initialize build cache at /root/.cache/go-build: mkdir /root/.cache: permission denied
FAILED: [code=1] fabric-cli 
/usr/bin/go build -v -o fabric-cli /build/fabric-cli-git/src/fabric-cli/src
ninja: build stopped: subcommand failed.
Could not rebuild /build/fabric-cli-git/src/fabric-cli/build
==> ERROR: A failure occurred in package().
    Aborting...
==> ERROR: Build failed, check /var/lib/archbuild/extra-x86_64/user-8/build

Steps to reproduce:

git clone https://aur.archlinux.org/fabric-cli-git.git
cd fabric-cli-git
pkgctl build