throw error message instead of exit code #1802

Job	Run time
install	7s
error	18s
debug	14s
driver (image=moby/buildkit:latest)	6s
driver (image=moby/buildkit:master network=host )	7s
multi	9s
use (true)	5s
main	5s
use (false)	7s
main (latest)	6s
append	7s
main (v0.4.1)	7s
build-ref (master)	8s
main (lab:latest)	10s
build-ref (refs/tags/v0.5.1)	7s
config	15s
config-inline	8s
main (lab:v0.11.2-desktop.2)	10s
build-ref (refs/pull/731/head)	9s
build-ref (cb185f095fd3d9444e0aa605d3789e9e05f2a1e7)	7s
docker-context	3s
docker-driver	3s
endpoint	44s
platforms	12s
standalone-action	9s
standalone-cmd	12s
standalone-install-error	5s
with-qemu (v0.9.1, all)	7s
with-qemu (v0.9.1, arm64,riscv64,arm)	20s
cache-binary (true)	7s
cleanup (true)	4s
cache-binary (false)	5s
with-qemu (all)	12s
cleanup (false)	9s
with-qemu (arm64,riscv64,arm)	7s
k3s (v0.11.0)	1m 7s
k3s (v0.10.5)	49s
	7m 27s

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