The MAAS PPC64 Snap has failed to build on Launchpad since 10/26. The failure occurs when trying to copy the machine-resources binaries. What is strange is according to the logs building the binaries succeeded, they just don't exist on the filesystem. I wasn't able to reproduce this manually with the PPC64 machine in the CI.
rm -rf src/machine-resources/vendor
cd src/machine-resources; dep ensure -vendor-only
[13/Nov/2020:20:55:44 +0000] "CONNECT github.com:443 HTTP/1.1" 200 6267 "-" "git/2.25.1"
[13/Nov/2020:20:55:45 +0000] "CONNECT github.com:443 HTTP/1.1" 200 23487 "-" "git/2.25.1"
[13/Nov/2020:20:55:45 +0000] "CONNECT github.com:443 HTTP/1.1" 200 57732 "-" "git/2.25.1"
[13/Nov/2020:20:55:45 +0000] "CONNECT github.com:443 HTTP/1.1" 200 16067 "-" "git/2.25.1"
[13/Nov/2020:20:55:46 +0000] "CONNECT github.com:443 HTTP/1.1" 200 6358 "-" "git/2.25.1"
[13/Nov/2020:20:55:46 +0000] "CONNECT github.com:443 HTTP/1.1" 200 438237 "-" "git/2.25.1"
[13/Nov/2020:20:55:47 +0000] "CONNECT github.com:443 HTTP/1.1" 200 152808 "-" "git/2.25.1"
[13/Nov/2020:20:55:48 +0000] "CONNECT github.com:443 HTTP/1.1" 200 330197 "-" "git/2.25.1"
[13/Nov/2020:20:55:48 +0000] "CONNECT github.com:443 HTTP/1.1" 200 30138 "-" "git/2.25.1"
[13/Nov/2020:20:55:51 +0000] "CONNECT github.com:443 HTTP/1.1" 200 10603 "-" "git/2.25.1"
[13/Nov/2020:20:55:52 +0000] "CONNECT github.com:443 HTTP/1.1" 200 16004 "-" "git/2.25.1"
[13/Nov/2020:20:55:53 +0000] "CONNECT github.com:443 HTTP/1.1" 200 619839 "-" "git/2.25.1"
[13/Nov/2020:20:55:53 +0000] "CONNECT github.com:443 HTTP/1.1" 200 203962 "-" "git/2.25.1"
[13/Nov/2020:20:55:59 +0000] "CONNECT github.com:443 HTTP/1.1" 200 58601881 "-" "git/2.25.1"
GOCACHE=/root/.cache/go-cache GOARCH=amd64 go build -ldflags '-s -w' -o bin/amd64 machine-resources
GOCACHE=/root/.cache/go-cache GOARCH=386 go build -ldflags '-s -w' -o bin/i386 machine-resources
GOCACHE=/root/.cache/go-cache GOARCH=arm go build -ldflags '-s -w' -o bin/armhf machine-resources
GOCACHE=/root/.cache/go-cache GOARCH=arm64 go build -ldflags '-s -w' -o bin/arm64 machine-resources
[13/Nov/2020:20:55:59 +0000] "CONNECT golang.org:443 HTTP/1.1" 200 8350 "-" "Go-http-client/1.1"
GOCACHE=/root/.cache/go-cache GOARCH=ppc64le go build -ldflags '-s -w' -o bin/ppc64el machine-resources
GOCACHE=/root/.cache/go-cache GOARCH=s390x go build -ldflags '-s -w' -o bin/s390x machine-resources
+ make -j4 install DESTDIR=/build/maas/parts/machine-resources/install
GOCACHE=/root/.cache/go-cache GOARCH=amd64 go build -ldflags '-s -w' -o bin/amd64 machine-resources
GOCACHE=/root/.cache/go-cache GOARCH=386 go build -ldflags '-s -w' -o bin/i386 machine-resources
GOCACHE=/root/.cache/go-cache GOARCH=arm go build -ldflags '-s -w' -o bin/armhf machine-resources
GOCACHE=/root/.cache/go-cache GOARCH=arm64 go build -ldflags '-s -w' -o bin/arm64 machine-resources
GOCACHE=/root/.cache/go-cache GOARCH=ppc64le go build -ldflags '-s -w' -o bin/ppc64el machine-resources
GOCACHE=/root/.cache/go-cache GOARCH=s390x go build -ldflags '-s -w' -o bin/s390x machine-resources
install -t /build/maas/parts/machine-resources/install/usr/share/maas/machine-resources -D bin/amd64 bin/i386 bin/armhf bin/arm64 bin/ppc64el bin/s390x
install: cannot stat 'bin/amd64': No such file or directory
install: cannot stat 'bin/i386': No such file or directory
install: cannot stat 'bin/armhf': No such file or directory
install: cannot stat 'bin/arm64': No such file or directory
install: cannot stat 'bin/ppc64el': No such file or directory
install: cannot stat 'bin/s390x': No such file or directory
make: *** [Makefile:48: install] Error 1
Failed to build 'machine-resources'.
