Can't specify precise crate version if there are multiple versions #2773
Description
# depcrate/Cargo.toml
[package]
name = "depcrate"
version = "0.1.0"
[dependencies]
spin = "0.3.5"# maincrate/Cargo.toml
[package]
name = "maincrate"
version = "0.1.0"
[dependencies]
spin = "0.4.0"
depcrate = { path = "../depcrate" }A cargo build will result in getting spin versions 0.3.5 and 0.4.2. Now, because of a bug, I'd like to downgrade 0.4.2 to 0.4.0. Let's try this:
$cargo update -p spin --precise 0.4.0
error: There are multiple `spin` packages in your project, and the specification `spin` is ambiguous.
Please re-run this command with `-p <spec>` where `<spec>` is one of the following:
spin:0.4.2
spin:0.3.5
Well ok, that makes sense. So let's specify spin:0.4.2:
$cargo update -p spin:0.4.2 --precise 0.4.0
Updating registry `https://github.com/rust-lang/crates.io-index`
error: no matching package named `spin` found (required by `depcrate`)
location searched: registry https://github.com/rust-lang/crates.io-index
version required: = 0.3.5
versions found: 0.4.0
I thought I just said to only touch 0.4.2?
When I manually edit Cargo.lock and change all occurences of 0.4.2 to 0.4.0, it builds fine.