wasmer run corrupts package on the second run on the hackathon branch

[fschutt]

In order to reproduce this bug, you need to checkout the hackathon branch, which has some changes of WASIX merged.

$ git checkout hackathon

$ make build-wasmer

$ ./target/release/wasmer run ciuser/customlambda 55
139583862445                                                           

$ ./target/release/wasmer run ciuser/customlambda 55
Fatal Python error: Py_Initialize: Unable to get the locale encoding
Traceback (most recent call last):
  File "lib/python3.6/encodings/__init__.py", line 31, in <module>
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 674, in exec_module
  File "<frozen importlib._bootstrap_external>", line 779, in get_code
  File "<frozen importlib._bootstrap_external>", line 487, in _compile_bytecode
EOFError: marshal data too short
error: failed to run `/Users/fs/.wasmer/checkouts/68747470733a2f2f7761706d2e696f2f6369757365722f637573746f6d6c616d626461@0.1.0/atoms/self::[email protected]:python`
│   1: RuntimeError: unreachable
╰─▶ 2: unreachable

$ ./target/release/wasmer -vV    
wasmer 3.1.0 (799ec 2023-01-20)
binary: wasmer-cli
commit-hash: 799ecbab394627594944e86196414b2347b7d2e6
commit-date: 2023-01-20
host: aarch64-apple-darwin
compiler: singlepass,cranelift

In the hackathon I could work around this bug by clearing the ~/.wasmer/checkouts directory before every run, but obviously this is not a long-term solution.

I am not sure if this is fixed in master because of #3509 - I can't really test it.

[fschutt]

This bug also appears on master:

./target/release/wasmer run ciuser/customlambda --disable-cache 55
Fatal Python error: Py_Initialize: Unable to get the locale encoding
Traceback (most recent call last):
  File "lib/python3.6/encodings/__init__.py", line 31, in <module>
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 674, in exec_module
  File "<frozen importlib._bootstrap_external>", line 779, in get_code
  File "<frozen importlib._bootstrap_external>", line 487, in _compile_bytecode
EOFError: marshal data too short
error: failed to run `/Users/fs/.wasmer/checkouts/68747470733a2f2f7761706d2e696f2f6369757365722f637573746f6d6c616d626461@0.1.0/atoms/self::[email protected]:python`
│   1: RuntimeError: unreachable
╰─▶ 2: unreachable

./target/release/wasmer -vV
wasmer 3.1.0 (580ba 2023-01-20)
binary: wasmer-cli
commit-hash: 580baeb5090ab825d082e4d5dbcafb9e880d3e06
commit-date: 2023-01-20
host: aarch64-apple-darwin
compiler: singlepass,cranelift