Auto merge of #5712 - servo:not-the-toml-you-re-looking-for, r=metajack

It’s been broken for a while and nobody noticed.

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Cargo.toml

@@ -1,10 +0,0 @@
-[package]
-
-name = "not-the-toml-you-re-looking-for"
-version = "0.0.1"
-authors = ["The Servo Project Developers"]
-
-build = "support/not-the-toml-you-re-looking-for.rs"
-
-[lib]
-name = "not-the-toml-you-re-looking-for"

support/not-the-toml-you-re-looking-for.rs

@@ -1,9 +0,0 @@
-fn main() {
-    ::std::os::set_exit_status(1);
-    let _ = ::std::old_io::stderr().write(br"
-
-    This is not the `Cargo.toml` file you're looking for.
-    Invoke Cargo through mach instead, e.g. `./mach build`.
-
-");
-}