Multiple Packages With Binaries Found

[mmstick]

Having an odd issue which I can't figure out. If I install my Rust application with:

cargo install --git https://github.com/mmstick/parallel

I get this error:

error: multiple packages with binaries found: generate-files, libc-test, parallel

Yet if I install the application with this command:

cargo install parallel

It compiles perfectly.

[alexcrichton]

Ah yeah if a git repository has multiple crates inside of it all with binaries Cargo has to know which one is actually being installed. The package on crates.io, however, is specific, so that's why that works instead.

Does this work for you?

cargo install --git https://github.com/mmstick/parallel parallel

[mmstick]

That does work perfectly.

[zimond]

The RFC is still indicating to use -p https://github.com/rust-lang/rfcs/blob/master/text/1200-cargo-install.md

@alexcrichton

[steveklabnik]

https://doc.rust-lang.org/cargo/commands/cargo-install.html says

--bin name...
Install only the specified binary.
--bins
Install all binaries.

neither of these worked for me, still giving the error about wanting to know which of multiple packages to install, but passing the binary name as an argument like suggested in this issue did work.

[spease]

I have a git repo where I have adjacent directories that specify dependencies among them using eg dependency = { path = "../dependency" } and cargo install fails. Is this how you're supposed to reference intra-repo dependencies?

I also had to pass CARGO_NET_GIT_FETCH_WITH_CLI=true to even authenticate to the git server on macOS.

[epage]

@spease this is a fairly old issue and it is unclear if its related to this issue. If this appears to be a bug, it might be good to create a new issue and include full reproduction steps. If this is a question on how to use Cargo, you might want to post on https://users.rust-lang.org/

[spease]

Sorry, maybe it's not clear how I arrived at this ticket.

If I run

CARGO_NET_GIT_FETCH_WITH_CLI=true cargo install --git "ssh://user@host/home/user/repo"

I get Multiple Packages with Binaries Found.

If I run

CARGO_NET_GIT_FETCH_WITH_CLI=true cargo install --git "ssh://user@host/home/user/repo" --bin app

which is what the --help suggests is the right option for what I'm trying to do, I get the same error. That's when I started googling and found this ticket.

If I use the suggested solution in this ticket

CARGO_NET_GIT_FETCH_WITH_CLI=true cargo install --git "ssh://user@host/home/user/repo" app

then I get

failed to load manifest for workspace member...

Caused by:
  failed to load manifest for dependency `dependency`

I don't know if this is the best ticket, but it seems like this is broadly the same usability issue.

EDIT: Seems CARGO_NET_GIT_FETCH_WITH_CLI=true is no longer necessary since I added the --git parameter, but I'll leave it in my examples to avoid retesting all of them right now.

[epage]

As you highlighted, something is going on with dependency but I can't really say much without a reproduction case.

[spease]

Figured it out. The issue was that an underlying dependency was outside the project tree as I had to modify a third-party library and the PR never got accepted or rejected, so I never updated the dependency to a permanent value. Opened #14924 to discuss making the error clearer.