Unsupported reparse point for Windows Bazel links

[gregl83]

Running bazel builds in Windows produces directory links (e.g. bazel-bin) that end up an failed reparse point errors from the rust's std library fs:read_link function.

Error:

thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: Error { kind: Uncategorized, message: "Unsupported reparse point type" }', src/lib.rs:69:63
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

The bazel build was performed in a docker container using a volume. The container was from a bazel image using linux.

More investigation required in order to support these links.