Also removes the toolchain builds from flake.nix. For now the flake
build uses upstream Go 1.20, a followup change will switch it back to
our custom toolchain.
Updates tailscale/corp#9005
Signed-off-by: David Anderson <danderson@tailscale.com>
Somewhere my local configuration or program versions are producing
marker files earlier in the process that lack a line terminator. This
doesn't need to cause an exit via set -e, we can just continue the
process. $extracted matches $REV anyway, so the process works.
Signed-off-by: James Tucker <james@tailscale.com>
