Simple express example not working

I am trying to put together a simple `express` example to try these out (since I've been able to get further with them than `bazelbuild/rules_nodejs`), and I'm running into an issue.

To reproduce (on top of standard `WORKSPACE` @ 4fe6494f):
```shell
# Set up express dependency.
# see: https://github.com/dropbox/rules_node/issues/3
bazel run @org_dropbox_rules_node//node/tools/npm:gen_build_npm -- express@4.16.2 $PWD/
```

I then append (adding `node_binary` to the `load()`):
```python
node_binary(
name = 'binary',
srcs = ['index.js'],
main = 'index.js',
deps = [
':express',
],
)
```

However, when I `bazel run :binary` I'm getting:
```shell
$ bazel run :binary
INFO: Analysed target //:binary (0 packages loaded).
INFO: Found 1 target...
ERROR: /home/mattmoor/trying-node/BUILD:334:1: Creating runfiles tree bazel-out/local-opt/bin/binary.runfiles failed (Exit 1)
_bin/build-runfiles (args bazel-out/local-opt/bin/binary.runfiles_manifest bazel-out/local-opt/bin/binary.runfiles): paths must not be absolute: line 1: '/node_modules/express/History.md /home/mattmoor/.cache/bazel/_bazel_mattmoor/e6c1f9a612e03cb822c6e33f6e63f45c/execroot/__main__/bazel-out/local-opt/bin/node_modules/express/History.md'

Target //:binary failed to build
Use --verbose_failures to see the command lines of failed build steps.
INFO: Elapsed time: 1.647s, Critical Path: 1.38s
FAILED: Build did NOT complete successfully
ERROR: Build failed. Not running target
```

The contents of `index.js` don't even matter. Am I holding it wrong? Any workarounds?

Bazel version info:
```shell
$ bazel version
Build label: 0.7.0
Build target: bazel-out/local-fastbuild/bin/src/main/java/com/google/devtools/build/lib/bazel/BazelServer_deploy.jar
Build time: Wed Oct 18 14:27:19 2017 (1508336839)
Build timestamp: 1508336839
Build timestamp as int: 1508336839
```