fix x clean for cross-compiled artifacts

[onur-ozkan]

build = "x86_64-unknown-linux-gnu"
host = ["arm-unknown-linux-gnueabihf"]
target = ["arm-unknown-linux-gnueabihf"]

On x86_64-unknown-linux-gnu, after cross-compiling with the sample configuration above, artifacts under build/x86_64-unknown-linux-gnu never gets cleaned with x clean. This PR fixes that.

[rustbot]

r? @clubby789

(rustbot has picked a reviewer for you, use r? to override)

[clubby789]

@bors r+ rollup

[bors]

📌 Commit bf0de6c has been approved by clubby789

It is now in the queue for this repository.

[bors]

⌛ Testing commit bf0de6c with merge e719b6f...

[bors]

☀️ Test successful - checks-actions
Approved by: clubby789
Pushing e719b6f to master...

[rust-timer]

Finished benchmarking commit (e719b6f): comparison URL.

Overall result: ❌ regressions - no action needed

@rustbot label: -perf-regression

Instruction count

This is a highly reliable metric that was used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	0.6%	[0.6%, 0.6%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	0.4%	[0.4%, 0.4%]	1
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.4%	[0.4%, 0.4%]	1

Cycles

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	3.9%	[3.8%, 4.1%]	3
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Binary size

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-0.4%	[-0.4%, -0.4%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-0.4%	[-0.4%, -0.4%]	1

Bootstrap: 673.523s -> 673.568s (0.01%)
Artifact size: 312.51 MiB -> 312.47 MiB (-0.01%)