base-orphans doesn't build: Saw: Data.Orphans.Prelude' Expected: Prelude'

[iphydf]

WORKSPACE:

new_http_archive(
    name = "haskell_base_orphans",
    build_file = "third_party/haskell/BUILD.base-orphans",
    sha256 = "c7282aa7516652e6e4a78ccdfb654a99c9da683875748ad5898a3f200be7ad0e",
    strip_prefix = "base-orphans-0.6",
    urls = ["https://hackage.haskell.org/package/base-orphans-0.6/base-orphans-0.6.tar.gz"],
)

third_party/haskell/BUILD.base-orphans:

load("@io_tweag_rules_haskell//haskell:haskell.bzl", "haskell_library")

haskell_library(
    name = "base-orphans",
    srcs = glob(["src/**/*.hs*"]),
    prebuilt_dependencies = ["base"],
    src_strip_prefix = "src",
    visibility = ["//visibility:public"],
)

Error:

external/haskell_base_orphans/src/Data/Orphans/Prelude.hs:17:8: error:
    File name does not match module name:
    Saw: `Data.Orphans.Prelude'
    Expected: `Prelude'
Target @haskell_base_orphans//:base-orphans failed to build

[iphydf]

This affects any package that defines a "Prelude" module anywhere. "github" is another example.

[mrkkrp]

Similarly here:

https://github.com/mrkkrp/rules_haskell-repro-139

And I get:

[mark@arch repro_139]$ bazel clean
INFO: Starting clean (this may take a while). Consider using --async if the clean takes more than several minutes.
[mark@arch repro_139]$ bazel build @haskell_base_orphans://...
INFO: Analysed 0 targets (4 packages loaded).
INFO: Found 0 targets...
INFO: Elapsed time: 0.286s, Critical Path: 0.00s
INFO: Build completed successfully, 1 total action

Any comment, @iphydf ?

[iphydf]

https://travis-ci.org/iphydf/repro139/jobs/343829107#L652 <- reproduced on travis.