message: Test: install with path outside current workspace
  Make up this test case to reflect the current incorrect behavior.
diff: @@ -7,7 +7,7 @@ use cargo_test_support::cross_compile;
  use cargo_test_support::git;
  use cargo_test_support::registry::{self, registry_path, registry_url, Package};
  use cargo_test_support::{
  - basic_manifest, cargo_process, no_such_file_err_msg, project, symlink_supported, t,
  + basic_manifest, cargo_process, no_such_file_err_msg, project, project_in, symlink_supported, t,
  };
  use cargo_test_support::install::{
  @@ -493,6 +493,57 @@ but found cargo.toml please try to rename it to Cargo.toml. --path must point to
  .run();
  }
  +#[cargo_test]
  +fn install_relative_path_outside_current_ws() {
  + let p = project()
  + .file(
  + "Cargo.toml",
  + r#"
  + [package]
  + name = "bar"
  + version = "0.1.0"
  + authors = []
  +
  + [workspace]
  + members = ["baz"]
  + "#,
  + )
  + .file("src/main.rs", "fn main() {}")
  + .file(
  + "baz/Cargo.toml",
  + r#"
  + [package]
  + name = "baz"
  + version = "0.1.0"
  + authors = []
  + edition = "2021"
  +
  + [dependencies]
  + foo = "1"
  + "#,
  + )
  + .file("baz/src/lib.rs", "")
  + .build();
  +
  + let _bin_project = project_in("bar")
  + .file("src/main.rs", "fn main() {}")
  + .build();
  +
  + p.cargo("install --path ../bar/foo")
  + .with_status(101)
  + .with_stderr(
  + "\
  +[ERROR] current package believes it's in a workspace when it's not:
  +current: [CWD]/../bar/foo/Cargo.toml
  +workspace: [CWD]/Cargo.toml
  +
  +this may be fixable by adding `../bar/foo` to the `workspace.members` [..]
  +Alternatively, [..]
  +",
  + )
  + .run();
  +}
  +
  #[cargo_test]
  fn multiple_crates_error() {
  let p = git::repo(&paths::root().join("foo"))
  