[Can't build library]: `maturin develop` failed

[lemorage]

I went through the "Setting up development environment" part in the Cocoindex contribution guide, however I got the following errors when running maturin develop, any idea?

 cocoindex rustup --version
rustup 1.26.0 (5af9b9484 2023-04-05)
info: This is the version for the rustup toolchain manager, not the rustc compiler.
info: The currently active `rustc` version is `rustc 1.81.0 (eeb90cda1 2024-09-04)`

 cocoindex uv run maturin develop
  × Failed to build `cocoindex @ file:///Users/clannad/Dev/GitHub/cocoindex`
  ├─▶ The build backend returned an error
  ╰─▶ Call to `maturin.build_editable` failed (exit status: 1)

      [stdout]
      Running `maturin pep517 build-wheel -i
      /Users/clannad/.cache/uv/builds-v0/.tmpbRoqRd/bin/python --compatibility
      off --editable`

      [stderr]
      📦 Including license file "/Users/clannad/Dev/GitHub/cocoindex/LICENSE"
      🍹 Building a mixed python/rust project
      🔗 Found pyo3 bindings
      🐍 Found CPython 3.12 at
      /Users/clannad/.cache/uv/builds-v0/.tmpbRoqRd/bin/python
      📡 Using build options features, bindings from pyproject.toml
         Compiling libc v0.2.172
         Compiling proc-macro2 v1.0.95
         ......
         Compiling async-openai v0.28.1
         Compiling google-drive3 v6.0.0+20240618
         Compiling cocoindex v999.0.0 (/Users/clannad/Dev/GitHub/cocoindex)
      error[E0658]: referencing statics in constants is unstable
       --> src/base/field_attrs.rs:7:47
        |
      7 | pub static CONTENT_FILENAME: &str = concatcp!(COCOINDEX_PREFIX,
      "content_filename");
        |                                               ^^^^^^^^^^^^^^^^
        |
        = note: see issue #119618
      <https://github.com/rust-lang/rust/issues/119618> for more information
        = note: `static` and `const` variables can refer to other `const`
      variables. A `const` variable, however, cannot refer to a `static`
      variable.
        = help: to fix this, the value can be extracted to a `const` and then
      used.

      error[E0658]: referencing statics in constants is unstable
        --> src/base/field_attrs.rs:11:48
         |
      11 | pub static CONTENT_MIME_TYPE: &str = concatcp!(COCOINDEX_PREFIX,
      "content_mime_type");
         |                                                ^^^^^^^^^^^^^^^^
         |
         = note: see issue #119618
      <https://github.com/rust-lang/rust/issues/119618> for more information
         = note: `static` and `const` variables can refer to other `const`
      variables. A `const` variable, however, cannot refer to a `static`
      variable.
         = help: to fix this, the value can be extracted to a `const` and
      then used.

      error[E0658]: referencing statics in constants is unstable
        --> src/base/field_attrs.rs:15:46
         |
      15 | pub static CHUNK_BASE_TEXT: &str = concatcp!(COCOINDEX_PREFIX,
      "chunk_base_text");
         |                                              ^^^^^^^^^^^^^^^^
         |
         = note: see issue #119618
      <https://github.com/rust-lang/rust/issues/119618> for more information
         = note: `static` and `const` variables can refer to other `const`
      variables. A `const` variable, however, cannot refer to a `static`
      variable.
         = help: to fix this, the value can be extracted to a `const` and
      then used.

      error[E0658]: referencing statics in constants is unstable
        --> src/base/field_attrs.rs:18:50
         |
      18 | pub static _VECTOR_ORIGIN_TEXT: &str = concatcp!(COCOINDEX_PREFIX,
      "vector_origin_text");
         |                                                  ^^^^^^^^^^^^^^^^
         |
         = note: see issue #119618
      <https://github.com/rust-lang/rust/issues/119618> for more information
         = note: `static` and `const` variables can refer to other `const`
      variables. A `const` variable, however, cannot refer to a `static`
      variable.
         = help: to fix this, the value can be extracted to a `const` and
      then used.

      error[E0658]: use of unstable library feature
      'option_get_or_insert_default'
        --> src/base/json_schema.rs:50:29
         |
      50 |             schema.metadata.get_or_insert_default().description =
      Some(description.to_string());
         |                             ^^^^^^^^^^^^^^^^^^^^^
         |
         = note: see issue #82901
      <https://github.com/rust-lang/rust/issues/82901> for more information

      error[E0658]: use of unstable library feature 'entry_insert'
         --> src/execution/memoization.rs:196:23
          |
      196 |                 entry.insert_entry(CacheEntry {
          |                       ^^^^^^^^^^^^
          |
          = note: see issue #65225
      <https://github.com/rust-lang/rust/issues/65225> for more information

      error[E0658]: use of unstable library feature 'is_none_or'
        --> src/ops/sources/local_file.rs:36:14
         |
      36 |             .is_none_or(|glob_set| glob_set.is_match(path))
         |              ^^^^^^^^^^
         |
         = note: see issue #126383
      <https://github.com/rust-lang/rust/issues/126383> for more information

      error[E0658]: use of unstable library feature 'is_none_or'
         --> src/ops/storages/neo4j.rs:879:39
          |
      879 |             if desired_state.as_ref().is_none_or(|desired| {
          |                                       ^^^^^^^^^^
          |
          = note: see issue #126383
      <https://github.com/rust-lang/rust/issues/126383> for more information

      error[E0658]: use of unstable library feature
      'option_get_or_insert_default'
         --> src/ops/storages/neo4j.rs:883:22
          |
      883 |                     .get_or_insert_default()
          |                      ^^^^^^^^^^^^^^^^^^^^^
          |
          = note: see issue #82901
      <https://github.com/rust-lang/rust/issues/82901> for more information

      error[E0658]: use of unstable library feature 'is_none_or'
         --> src/setup/states.rs:301:14
          |
      301 |             .is_none_or(|c| c.change_type() ==
      SetupChangeType::NoChange)
          |              ^^^^^^^^^^
          |
          = note: see issue #126383
      <https://github.com/rust-lang/rust/issues/126383> for more information

      error[E0658]: use of unstable library feature 'is_none_or'
         --> src/setup/states.rs:344:18
          |
      344 |                 .is_none_or(|t| t.is_up_to_date())
          |                  ^^^^^^^^^^
          |
          = note: see issue #126383
      <https://github.com/rust-lang/rust/issues/126383> for more information

      For more information about this error, try `rustc --explain E0658`.
      error: could not compile `cocoindex` (lib) due to 11 previous errors
      💥 maturin failed
        Caused by: Failed to build a native library through cargo
        Caused by: Cargo build finished with "exit status: 101":
      `env -u CARGO PYO3_ENVIRONMENT_SIGNATURE="cpython-3.12-64bit"
      PYO3_PYTHON="/Users/clannad/.cache/uv/builds-v0/.tmpbRoqRd/bin/python"
      PYTHON_SYS_EXECUTABLE="/Users/clannad/.cache/uv/builds-v0/.tmpbRoqRd/bin/python"
      "cargo" "rustc" "--features" "pyo3/extension-module"
      "--message-format" "json-render-diagnostics" "--manifest-path"
      "/Users/clannad/Dev/GitHub/cocoindex/Cargo.toml" "--release" "--lib"
      "--" "-C" "link-arg=-undefined" "-C" "link-arg=dynamic_lookup" "-C"
      "link-args=-Wl,-install_name,@rpath/cocoindex._engine.cpython-312-darwin.so"`
      Error: command ['maturin', 'pep517', 'build-wheel', '-i',
      '/Users/clannad/.cache/uv/builds-v0/.tmpbRoqRd/bin/python',
      '--compatibility', 'off', '--editable'] returned non-zero exit status 1

      hint: This usually indicates a problem with the package or the build
      environment.

[par4m]

Please upgrade rustc using rustup update, some features weren't stable in 1.81.0.

[lemorage]

Thanks! Everything works after the updates. I think this is kind of unclear in the docs, there is no constraint mentioned on Rust versions, can I make a PR for that?

[par4m]

I actually did right after I saw this issue! #381
You can check out https://github.com/cocoindex-io/cocoindex/issues for more, and feel free to join the Discord for any questions 🤗

[badmonster0]

❤️ Thanks a lot @lemorage for filing the issue! Welcome to the community - we are super friendly and open community :)

❤️ Thanks a lot @par4m for staying up to the community issues and questions and fixing the doc!