'static' in sandbox complains node_modules\@architect\shared\.arc is missing

[mikemaccana]

Describe the issue

Using static in Arc 6.0.0 sandbox fails on one of my machines:

Error
ENOENT: no such file or directory, open 'C:\Users\mikem\Code\temp\appless\src\http\get-index\node_modules\@architect\shared\.arc'0.

Error: ENOENT: no such file or directory, open 'C:\Users\mikem\Code\temp\appless\src\http\get-index\node_modules\@architect\shared\.arc'
    at Object.openSync (fs.js:443:3)
    at Object.readFileSync (fs.js:343:35)
    at _static (C:\Users\mikem\Code\temp\appless\node_modules\@architect\functions\src\static\index.js:31:20)
    at C:\Users\mikem\Code\temp\appless\src\http\get-index\node_modules\@architect\shared\layout.js:34:25
    at Array.forEach ()
    at layout (C:\Users\mikem\Code\temp\appless\src\http\get-index\node_modules\@architect\shared\layout.js:33:17)
    at http (C:\Users\mikem\Code\temp\appless\src\http\get-index\index.js:23:11)
    at process._tickCallback (internal/process/next_tick.js:68:7)
    at evalScript (internal/bootstrap/node.js:592:13)
    at startup (internal/bootstrap/node.js:265:9)

Versions:

    "@architect/architect": "^6.0.0",
    "@architect/functions": "^3.3.2",
    "@architect/sandbox": "^1.3.6",

Also Windows 10, using arc.json.

The error occurs in:
https://github.com/architect/functions/blob/master/src/static/index.js#L25

From Slack discussion, arc should no longer expect:

some-lambda/node_modules/@architect/shared/.arc

to exist, but this isn't true according to

https://github.com/architect/functions/blob/master/src/static/index.js#L12

Workarounds

• If I do not use static, the issue goes away.
• If I add the file to some-lambda/node_modules/@architect/shared/.arc, the issue goes away.