cargo does not load workspace .cargo/config.toml

[chuckliu1979]

Problem

my project is a cargo workspace, and i put .cargo/config.toml in workspace root, but seems cargo does not load it:

[source.crates-io]
replace-with = "ustc"

[source.ustc]
registry = "sparse+https://mirrors.ustc.edu.cn/crates.io-index/"

[http]
timeout = 60

[net]
retry = 5

I read cargo docs, it says should find it first

Steps

1. put .cargo/config.toml in workspace root
2. cargo install package
3. source replace-with not work

Possible Solution(s)

No response

Notes

No response

Version

cargo 1.79.0 (ffa9cf99a 2024-06-03)
release: 1.79.0
commit-hash: ffa9cf99a594e59032757403d4c780b46dc2c43a
commit-date: 2024-06-03
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]

[epage]

This looks similar to #14001

So if I'm understanding, you are wanting cargo install to use the config file from the --git repo, right?

Config is environmental and not tied to the project (#2930, see #12738 for finding ways the right abstraction for representing config in the project). According to these rules, cargo install should use the config of your current-dir independent of where the source is. You can see this if you do cargo check --manifest-path <some-dir> that the config from <some-dir> won't be used, instead requiring something like #10098. For various reasons, cargo install varies from this pattern and only the user-wide configuration is used and not the config for the current-dir.