cargo-graph generates incompatible dot files in powershell

[Trolldemorted]

When starting cargo graph in windows' cmd shell, the output file is ASCII text. When you start it in windows' powershell, the output file is Little-endian UTF-16 Unicode text, with CRLF, CR line terminators and a byte order mark.

dot fails to produce pngs from such a file:

PS C:\Users\Benni\repositories\parity> dot -Tpng > rainbow-graph.png cargo-count-ps.dot
Error: cargo-count-ps.dot: syntax error in line 1 near ' ■d'

[remram44]

File is opened here:

cargo-graph/src/main.rs

Lines 332 to 334 in d895af1

	let o = File::create(&Path::new(&file)).expect("Failed to create file");
	let mut bw = BufWriter::new(o);
	graph.render_to(&mut bw)

And written to here:

cargo-graph/src/graph.rs

Line 222 in d895af1

try!(writeln!(output, "{}", "digraph dependencies {"));

I'm surprised this would happen. I don't see a reason for it?

[Trolldemorted]

The example and thus I are piping the content into a file, so cfg.dot_file is None, and stdout's encoding depends on the shell you use I presume?

Edit: Even if I write only a single letter this way, the BOM and encoding is that way, so I guess powershell uses utf16 (or something similar) and stdout adheres to that.

[remram44]

I really assumed write!() always outputted UTF-8. I don't know where this translation could be happening.