Nightly toolchain version different than rustc version

[elichai]

Hi,
So I noticed it in nightly 2018-04-12 but I'm sure this apply to other nightlys.
I install toolchain rustup override set nightly-2018-04-12-x86_64-unknown-linux-gnu
But the rustc version is different rustc 1.27.0-nightly (ad610bed8 2018-04-11).

On the IRC people told me the reason is because the CI starts deployment at 11:00PM and it doesn't end until after the next day starts, this seems solvable pretty easy.

Don't you think it's better to have a consistent release date?

[eddyb]

Note that the date in (ad610bed8 2018-04-11) is not a version, it's the timestamp of the last commit (from the last merged PR) before the nightly, i.e. ad610be. If no PRs get merged, it doesn't change.

cc @SimonSapin @alexcrichton This has been discussed before.

[SimonSapin]

The previous attempt at fixing this broke some infra things and was reverted: rust-lang/rust-central-station#27

[Mark-Simulacrum]

Closing as duplicate of #51533.