maturin build --sdist: README.md was already added for workspace crate

[mhils]

Bug Description

With a README file both in the workspace root and the crate root:

• https://github.com/mitmproxy/mitmproxy_rs/blob/main/README.md
• https://github.com/mitmproxy/mitmproxy_rs/blob/main/mitmproxy-rs/README.md

building a source distribution fails:

$ cd mitmproxy-rs
$ RUST_LOG=maturin=debug maturin build --sdist
2024-10-02T14:12:48.035925Z DEBUG into_build_context: maturin::project_layout: Found pyproject.toml in working directory at "/Users/mhils/git/mitmproxy_rs/mitmproxy-rs/pyproject.toml"
2024-10-02T14:12:48.037519Z DEBUG into_build_context: maturin::project_layout: Using cargo manifest path from working directory: "/Users/mhils/git/mitmproxy_rs/mitmproxy-rs/Cargo.toml"
2024-10-02T14:12:48.037891Z DEBUG into_build_context:resolve_cargo_metadata: maturin::project_layout: Resolving cargo metadata from "/Users/mhils/git/mitmproxy_rs/mitmproxy-rs/Cargo.toml"
2024-10-02T14:12:48.247759Z  INFO into_build_context:resolve_cargo_metadata: maturin::project_layout: close time.busy=210ms time.idle=1.25µs
2024-10-02T14:12:48.248315Z DEBUG into_build_context: maturin::project_layout: Project layout resolved project_root=/Users/mhils/git/mitmproxy_rs/mitmproxy-rs python_dir=/Users/mhils/git/mitmproxy_rs/mitmproxy-rs rust_module=/Users/mhils/git/mitmproxy_rs/mitmproxy-rs/mitmproxy_rs python_module=/Users/mhils/git/mitmproxy_rs/mitmproxy-rs/mitmproxy_rs extension_name=mitmproxy_rs module_name=mitmproxy_rs
🍹 Building a mixed python/rust project
🔗 Found pyo3 bindings with abi3 support for Python ≥ 3.10
2024-10-02T14:12:48.340243Z DEBUG into_build_context:check_executable: maturin::python_interpreter: Found CPython interpreter at /Users/mhils/git/mitmproxy/venv/bin/python executable=python
2024-10-02T14:12:48.340263Z  INFO into_build_context:check_executable: maturin::python_interpreter: close time.busy=49.0ms time.idle=1.83µs executable=python
🐍 Not using a specific python interpreter
📡 Using build options features from pyproject.toml
2024-10-02T14:12:48.340320Z  INFO into_build_context: maturin::build_options: close time.busy=305ms time.idle=1.50µs
2024-10-02T14:12:48.388449Z DEBUG maturin::source_distribution: Found path dependencies: ["mitmproxy"]
2024-10-02T14:12:48.388466Z DEBUG maturin::source_distribution: Found sdist root: /Users/mhils/git/mitmproxy_rs
2024-10-02T14:12:48.388469Z DEBUG maturin::source_distribution: Adding path dependency: mitmproxy at /Users/mhils/git/mitmproxy_rs/Cargo.toml
[...]
2024-10-02T14:12:48.503569Z DEBUG maturin::module_writer: Adding mitmproxy_rs-0.10.1.dev0/LICENSE from /Users/mhils/git/mitmproxy_rs/LICENSE
2024-10-02T14:12:48.503663Z DEBUG maturin::module_writer: Adding mitmproxy_rs-0.10.1.dev0/README.md from /Users/mhils/git/mitmproxy_rs/README.md
[...]
2024-10-02T14:12:48.664433Z DEBUG maturin::source_distribution: Rewriting Cargo.toml `package.readme` at /Users/mhils/git/mitmproxy_rs/mitmproxy-rs/Cargo.toml
2024-10-02T14:12:48.664452Z DEBUG maturin::source_distribution: Rewriting Cargo.toml `workspace.members` at /Users/mhils/git/mitmproxy_rs/mitmproxy-rs/Cargo.toml
[...]
2024-10-02T14:12:48.664641Z DEBUG maturin::module_writer: Adding mitmproxy_rs-0.10.1.dev0/mitmproxy-rs/README.md from /Users/mhils/git/mitmproxy_rs/mitmproxy-rs/README.md
[...]
2024-10-02T14:12:48.667225Z DEBUG maturin::module_writer: Adding mitmproxy_rs-0.10.1.dev0/mitmproxy-rs/stubtest-allowlist.txt from /Users/mhils/git/mitmproxy_rs/mitmproxy-rs/stubtest-allowlist.txt
💥 maturin failed
  Caused by: Failed to build source distribution
  Caused by: File mitmproxy_rs-0.10.1.dev0/README.md was already added from /Users/mhils/git/mitmproxy_rs/README.md, can't added it from /Users/mhils/git/mitmproxy_rs/mitmproxy-rs/README.md

Cargo.toml, mitmproxy-rs/Cargo.toml, and mitmproxy-rs/pyproject.toml do not specify any (custom) settings w.r.t. READMEs. I would have expected maturin to use mitmproxy-rs/README.md and not README.md.

This is a regression that started in 1.7.1. Refs #2184 and #2154.

Your maturin version (maturin --version)

1.7.4

Your Python version (python -V)

3.12

Your pip version (pip -V)

all

What bindings you're using

pyo3

Does cargo build work?

• Yes, it works

[deadsoul44]

What is ETA for this? (no pressure intended)