Re: [Libguestfs] [nbdkit PATCH 2/2] plugins/rust: restrict predicates-{tree, core} to {1.0.7, 1.0.5}
On Tue, Mar 28, 2023 at 06:25:14PM +0200, Laszlo Ersek wrote:
The beautiful world of uncontained dependencies:
- We restrict mockall to 0.11.0, which in practice currently expands to
0.11.4,
- mockall depends on predicates-tree,
- predicates-tree depends on predicates-core,
- approx. two weeks ago, predicates-tree and predicates-core have seen
*PATCHLEVEL* upgrades (1.0.7 -> 1.0.9, and 1.0.5 -> 1.0.6, respectively)
that now require "rustc 1.64.0 or newer".
RHEL-9.2 will eventually ship rustc 1.66, but RHEL-9.2 has not been
released. The above rustc requirement bump breaks the nbdkit build on
RHEL-9.1 -- which provides rustc 1.62. Restrict predicates-{tree,core} to
{1.0.7,1.0.5}.
(Side commentary: when such things can happen via a *patchlevel* upgrade,
that makes a total mockery of "semantic versioning"
<https://en.wikipedia.org/wiki/Software_versioning#Semantic_versioning>.)
Yeah, I get the feeling that the Rust community has not yet learned
the hard lessons that it has taken the C community years to
understand. Versioning is hard, but being cavalier about it is not
doing your users a service.
Signed-off-by: Laszlo Ersek <lersek(a)redhat.com>
---
plugins/rust/Cargo.toml | 2 ++
1 file changed, 2 insertions(+)
I'm not a Rust expert, so I won't give R-b, but since it fixes the
build, I can at least offer:
Acked-by: Eric Blake <eblake(a)redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org