message: Use multiple install command in the corresponding test
diff: @@ -82,16 +82,15 @@ error: some crates failed to install
  assert_that(cargo_home(), has_installed_exe("foo"));
  assert_that(cargo_home(), has_installed_exe("bar"));
  - assert_that(cargo_process("uninstall").arg("foo"),
  + assert_that(cargo_process("uninstall").args(&["foo", "bar"]),
  execs().with_status(0).with_stderr(&format!("\
  [REMOVING] {home}[..]bin[..]foo[..]
  -",
  - home = cargo_home().display())));
  - assert_that(cargo_process("uninstall").arg("bar"),
  - execs().with_status(0).with_stderr(&format!("\
  [REMOVING] {home}[..]bin[..]bar[..]
  +
  +Summary: Successfully uninstalled foo, bar!
  ",
  home = cargo_home().display())));
  +
  assert_that(cargo_home(), is_not(has_installed_exe("foo")));
  assert_that(cargo_home(), is_not(has_installed_exe("bar")));
  }
  