message: Add a test that uses a custom binary target
  The custom target name contains the crate type `bin`.
diff: @@ -130,3 +130,50 @@ fn custom_target_dependency() {
  p.cargo("build --lib --target custom-target.json -v").run();
  }
  +
  +#[cargo_test]
  +fn custom_bin_target() {
  + if !is_nightly() {
  + // Requires features no_core, lang_items
  + return;
  + }
  + let p = project()
  + .file(
  + "src/main.rs",
  + r#"
  + #![feature(no_core)]
  + #![feature(lang_items)]
  + #![no_core]
  + #![no_main]
  +
  + #[lang = "sized"]
  + pub trait Sized {
  + // Empty.
  + }
  + #[lang = "copy"]
  + pub trait Copy {
  + // Empty.
  + }
  + "#,
  + )
  + .file(
  + "custom-bin-target.json",
  + r#"
  + {
  + "llvm-target": "x86_64-unknown-none-gnu",
  + "data-layout": "e-m:e-i64:64-f80:128-n8:16:32:64-S128",
  + "arch": "x86_64",
  + "target-endian": "little",
  + "target-pointer-width": "64",
  + "target-c-int-width": "32",
  + "os": "none",
  + "linker-flavor": "ld.lld",
  + "linker": "rust-lld",
  + "executables": true
  + }
  + "#,
  + )
  + .build();
  +
  + p.cargo("build --target custom-bin-target.json -v").run();
  +}
  