rust projects unconditionally rebuild w/make test?

[dtzSiFive]

It seems that a development flow involving make test causes unconditional rebuilding of the rust components.

It's not obvious this is necessary.

This looks to be part of doInstall maybe?

[dtzSiFive]

Explanation is documented as a comment here:

wake/share/wake/lib/rust_wake/cargo.wake

Lines 218 to 220 in 449f399

	# Cargo will not reuse work because the sandbox will not contain its extra info, inside of target.
	# TODO: Add an environment variable to opt-in to localRunner cargo builds if we detect
	# existing outputs in {root}/target/release

.