Migrate the hello-world-script example to a 'rust' dir

Author: abravalheri

examples/hello-world-script/Cargo.toml

@@ -10,3 +10,15 @@ edition = "2018"
 [profile.release-lto]
 inherits = "release"
 lto = true
+
+[[bin]]
+name = "hello-world-script"
+path = "rust/main.rs"
+# See https://doc.rust-lang.org/cargo/reference/cargo-targets.html#binaries
+#
+# If [[bin]] is not specified, but the file ``src/main.rs`` exists,
+# you can also rely on an implicit definition which will behave similarly to:
+#
+# [[bin]]
+# name = <package.name>
+# path = "src/main.rs"

examples/hello-world-script/MANIFEST.in

@@ -1,3 +1,3 @@
 include Cargo.toml
-recursive-include src *
+recursive-include rust *
 recursive-include python *

examples/hello-world-script/pyproject.toml

@@ -13,6 +13,5 @@ find = { where = ["python"] }
 [[tool.setuptools-rust.bins]]
 # Private Rust extension module to be nested into Python package
 target = "hello-world-script"  # Matches bin.name in Cargo.toml
-                               # (or package.name if [[bin]] is missing and src/main.rs exists)
 args = ["--profile", "release-lto"]  # Extra args for Cargo
 # See reference for RustBin in https://setuptools-rust.readthedocs.io/en/latest/reference.html