Remove the binary so we can overwrite it while its open

src/BinaryInstaller.php

@@ -250,6 +250,7 @@ protected function installBinary($binary, $version, $url, $sha, $hashalgo = 'sha
             $this->io->write(sprintf('%s v%s (%s) already exists in bin-dir, not overwriting.', $binary, $version, $sha));
         }
         else {
+            $fs->remove($binDestination);
             $fs->copy($cacheExtractedBinary, $binDestination);
             // Make executable.
             if ('windows' !== $this->platform) {