cargo::Builder::quiet is too coarse

[smoelius]

quiet prevents "header" messages:

dylint/internal/src/cargo.rs

Lines 107 to 109 in 1ffeac5

	if !self.quiet {
	// smoelius: Writing directly to `stderr` prevents capture by `libtest`.
	let message = format!("{} {}", self.verb, self.description);

quiet also prevents constructed commands from writing to stderr:

dylint/internal/src/cargo.rs

Lines 140 to 142 in 1ffeac5

	if self.quiet {
	command.stderr(Stdio::null());
	}

In dylint/src/metadata/cli/mod.rs, we don't use quiet because we want allow writing to stderr:

dylint/dylint/src/metadata/cli/mod.rs

Lines 245 to 246 in 1ffeac5

	// smoelius: Since stdout and stderr are captured, there is no need to use `.quiet(true)`.
	let _output = dylint_internal::cargo::fetch("dummy package")

But this then creates unwanted "header" messages.

[smoelius]

Fixed by #1025