Update io-lifetimes requirement from 0.6 to 0.7

[dependabot]

Updates the requirements on io-lifetimes to permit the latest version.

Commits

• f5b4dea (cargo-release) version 0.7.0
• 22ea30a Add From\<OwnedFd> and From\<T> for OwnedFd impls.
• f80e1f0 Make drop functions which are usually no-ops inline.
• e3b7794 Remove obsolete TODOs.
• 1b91650 Remove sunfishcode.online docs.
• a7da11e (cargo-release) version 0.7.0-beta.0
• b3c7b00 Make views require dedicated unsafe marker traits. (#32)
• d520244 (cargo-release) version 0.7.0-alpha.1
• c974453 Avoid depending on panic in const fn, to fix compilaton on Rust <= 1.56.
• 1fd4a53 (cargo-release) version 0.7.0-alpha.0
• Additional commits viewable in compare view

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[jonhoo]

This change is 

[jonhoo]

Is io-lifetimes not part of any of our public types or methods?

[NobodyXu]

Is io-lifetimes not part of any of our public types or methods?

No, it is only used internally.

[NobodyXu]

@jonhoo It is used in StdioImpl

[jonhoo]

@NobodyXu Ah, yes, this impl is problematic:

openssh/src/stdio.rs

Lines 78 to 82 in 8884413

	impl From<OwnedFd> for Stdio {
	fn from(fd: OwnedFd) -> Self {
	Self(StdioImpl::Fd(fd))
	}
	}

We should probably turn that into an inherent implementation instead so that it can be pub(crate).

[NobodyXu]

@NobodyXu Ah, yes, this impl is problematic:

openssh/src/stdio.rs

Lines 78 to 82 in 8884413

	impl From<OwnedFd> for Stdio {
	fn from(fd: OwnedFd) -> Self {
	Self(StdioImpl::Fd(fd))
	}
	}

We should probably turn that into an inherent implementation instead so that it can be pub(crate).

Sorry that I didn't notice this.

But we would have to make a breaking change to remove that function.

Perhaps we should just revert this PR?

[jonhoo]

I think we should just remove the impl with a minor release. It's extremely unlikely anyone is relying on this part of the API right now, and it's okay to do a theoretically-breaking change in a non-major release if the likelihood of actual breakage is as low as here I think.

[NobodyXu]

I think we should just remove the impl with a minor release. It's extremely unlikely anyone is relying on this part of the API right now, and it's okay to do a theoretically-breaking change in a non-major release if the likelihood of actual breakage is as low as here I think.

Done in #82 !