self.download_component(DownloadSource::Dist, filename, "rustfmt-preview", &date, "stage0");
self.fix_bin_or_dylib(&bin_root.join("bin").join("rustfmt"));
self.download_component(DownloadSource::Dist, filename, "rustfmt-preview", &date, "stage0");
self.fix_bin_or_dylib(&bin_root.join("bin").join("rustfmt"));