Nightly not updating despite #1997

[lesurp]

Problem

⮞ rustup show           
Default host: x86_64-unknown-linux-gnu
rustup home:  /home/lesur/.rustup

installed toolchains
--------------------

stable-x86_64-unknown-linux-gnu
nightly-x86_64-unknown-linux-gnu (default)

active toolchain
----------------

nightly-x86_64-unknown-linux-gnu (default)
rustc 1.39.0-nightly (9b9d2aff8 2019-09-19)

⮞ rustup --version                                
rustup 1.19.0 (2af131cf9 2019-09-08)

⮞ rustup update        
info: syncing channel updates for 'stable-x86_64-unknown-linux-gnu'
info: syncing channel updates for 'nightly-x86_64-unknown-linux-gnu'
info: latest update on 2019-10-09, rust version 1.40.0-nightly (2748a9fd9 2019-10-08)
error: component 'rustfmt' for target 'x86_64-unknown-linux-gnu' is unavailable for download for channel 'nightly'
If you require these components, please install and use the latest successful build version,
which you can find at <https://rust-lang.github.io/rustup-components-history>.

After determining the correct date, install it with a command such as:

    rustup toolchain install nightly-2018-12-27

Then you can use the toolchain with commands such as:

    cargo +nightly-2018-12-27 build
info: checking for self-updates

       stable-x86_64-unknown-linux-gnu unchanged - rustc 1.38.0 (625451e37 2019-09-23)
  nightly-x86_64-unknown-linux-gnu update failed - rustc 1.39.0-nightly (9b9d2aff8 2019-09-19)

As per this page, I cannot upgrade to the latest nightly version. However it also shows that 2019-10-04 should work. If I understand #1997 correctly, rustup should upgrade from 2019-09-19 (my current version) to 2019-10-04 (latest version including everything I am using).

Am I doing something wrong here or is it an actual bug?

Thanks :)

[kinnison]

This is expected, we have not yet released a rustup containing that change. Hopefully that'll change next week.