Cargo is unable to work with two included workspaces

[vporton]

Problem

Cargo is unable to work with two included workspaces:

cargo locate-project' failed: error: multiple workspace roots found in the same workspace:
  /home/porton/Projects/zondirectory/src/ic_eth
  /home/porton/Projects/zondirectory

This prevents me to use a Git submodule that contains a workspace. There is no easy workaround, apparently.

Steps

1. Create a Cargo workspace project.
2. Create another Cargo workspace project in a subdir.
3. Run compilation.

Possible Solution(s)

Use workspaces in a subdirectory as a part of a parent workspace.

Notes

No response

Version

cargo 1.80.1 (376290515 2024-07-16)
release: 1.80.1
commit-hash: 37629051518c3df9ac2c1744589362a02ecafa99
commit-date: 2024-07-16
host: x86_64-unknown-linux-gnu
libgit2: 1.7.2 (sys:0.18.3 vendored)
libcurl: 8.6.0-DEV (sys:0.4.72+curl-8.6.0 vendored ssl:OpenSSL/1.1.1w)
ssl: OpenSSL 1.1.1w  11 Sep 2023
os: Ubuntu 24.4.0 (noble) [64-bit]

[weihanglo]

This is likely a duplicate of #5042. Close in favor of that.

Let us know if there is a reason to keep this open separately.