feat(resolve): Direct people to working around less optimal MSRV-resolver results #14543
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…lver results In discussing rust-lang#14414, the general problem of the resolver picking a version older than a package needs for its MSRV (or lack of one) because of the MSRV of other packages came up. This tries to patch over that problem by telling users that a dependency might be able to be newer than the resolver selected. The message is fairly generic and might be misread to be about any MSRV update which an MSRV `fallback` strategy allows, which would make the count off. The reason it is so generic is we don't know with precision why it was held back - Direct dependents may have a non-semver upper bound on the version as we aren't trying to unify the version requirements across direct dependents at this time - A dependency could have removed a feature without making a breaking change - This seems like it should instead be an error but thats a conversation for another day - ~~The user enabled `-Zminimal-versions`~~ - This is now detected and the message skipped Note: separate from this, we may also print the status suffix for this case if the package was not selected for update (e.g. passing `--workspace`).
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| [ADDING] dep1 v0.1.3 (available: v0.1.8) | ||
| [NOTE] 1 package may have a higher, compatible versions. To update it, run `cargo update <name> --precise <version> |
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This is an example of where it might show up for a non-MSRV case (and the suggested action will fail)
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@joshtriplett this is a first pass at supporting a summary message and what wording we might use. |
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☔ The latest upstream changes (presumably #14568) made this pull request unmergeable. Please resolve the merge conflicts. |
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What does this PR try to resolve?
In discussing #14414, the general problem of the resolver picking a
version older than a package needs for its MSRV (or lack of one) because of the MSRV of
other packages came up.
This tries to patch over that problem by telling users that a dependency
might be able to be newer than the resolver selected.
The message is fairly generic and might be misread to be about any MSRV
update which an MSRV
fallbackstrategy allows, which would make thecount off.
The reason it is so generic is we don't know with precision why it was
held back
we aren't trying to unify the version requirements across direct
dependents at this time
change
conversation for another day
The user enabled-Zminimal-versionsNote: separate from this, we may also print the status suffix for this
case if the package was not selected for update (e.g. passing
--workspace).How should we test and review this PR?
Additional information