Cannot build Rust library using derive_builder

[agentydragon]

This is an example repository with a simple Rust binary using derive_builder crate: https://gitlab.com/agentydragon/test
The repository has rules_rust pointed at commit 9aa4956.

This is my Bazel output trying to compile the binary:

error: couldn't read external/raze__derive_builder__0_9_0/src/doc_tpl/builder_struct.md: No such file or directory (os error 2)
   --> external/raze__derive_builder__0_9_0/src/lib.rs:615:9
    |
615 |         include_str!("doc_tpl/builder_struct.md"),
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)

error: couldn't read external/raze__derive_builder__0_9_0/src/doc_tpl/builder_method.md: No such file or directory (os error 2)
   --> external/raze__derive_builder__0_9_0/src/lib.rs:619:9
    |
619 |         include_str!("doc_tpl/builder_method.md"),
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 2 previous errors

ERROR: /home/agentydragon/.cache/bazel/_bazel_agentydragon/867bf77deb07710cf7b0ca4ecebee8dd/external/raze__derive_builder__0_9_0/BUILD.bazel:73:13: output 'external/raze__derive_builder__0_9_0/libderive_builder--244701270.so' was not created
ERROR: /home/agentydragon/.cache/bazel/_bazel_agentydragon/867bf77deb07710cf7b0ca4ecebee8dd/external/raze__derive_builder__0_9_0/BUILD.bazel:73:13: Compiling Rust proc-macro derive_builder v0.9.0 (43 files) failed: not all outputs were created or valid
Target //:test failed to build
Use --verbose_failures to see the command lines of failed build steps.
INFO: Elapsed time: 81.999s, Critical Path: 32.98s
INFO: 23 processes: 1 internal, 22 linux-sandbox.
FAILED: Build did NOT complete successfully

[agentydragon]

I don't feel like digging deep into how rules_rust works right now, but I'd expect this to be some issue with the Markdown templates not being in srcs of some generated rust_library, or generally not being visible within the build environment of the crate library.

I encountered this problem in the context of trying do write a Rust tool with the headless_chrome crate.

[agentydragon]

Solved by adding this to Cargo.toml:

[package.metadata.raze.crates.derive_builder.'*']
compile_data_attr = "glob([\"**/*.md\"])"

This is a case of google/cargo-raze#41.