[Pkg-rust-maintainers] Bug#929393: rust-lazy-static: please upgrade to 1.3.0

[Daniel Kahn Gillmor]

Control: retitle 929393 rust-lazy-static: please upgrade to 1.3.0

On Wed 2019-05-22 14:20:11 -0400, Daniel Kahn Gillmor wrote:
> sequoia-openpgp wants lazy_static version 0.13.0.  we only have 0.11.0
> in debian right now.

I mis-wrote this -- it should have said we want lazy_static 1.3.0, but
we currently have 1.2.0.

talking with kpcyrd and silwol[m] and Sylvestre on #debian rust today, i
think i gained enough insight and confidence to go ahead with this
upgrade.

First, we discussed whether to target unstable or experimental.  the
rough sense of the group was that unstable is ok. if we come up with
targeted fixes we want in buster before the release, we might use
testing-proposed-updates for that.

I also learned that lazy_static has a spin feature that is versioned
against spin 0.5.0 (0.4.10 is in testing), so upgrading spin initially
is probably advisable.  An updated spin is needed in other projects too,
so this update appears to be concretely useful.

finally, because of the semantic versioning, 1.3.0 is supposed to be a
safe upgrade from 1.2.0.  Indeed, other packages should have their build
(and runtime) dependencies set to just care about the major version (and
maybe >= some minor version, but upstream is supposed to avoid any
breaking changes in minor updates as long as the major version is
already >= 0.

So i've uploaded this package.  If there are problems with the upload or
the process, please let me know.

        --dkg
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