Download failure of nightly on ARM

[raviqqe]

Nightly toolchain download fails on ARM while that may not be a problem of rustup itself but Rust's.

> rustup install nightly-2018-03-26
info: syncing channel updates for 'nightly-2018-03-26-armv7-unknown-linux-gnueabihf'
info: latest update on 2018-03-26, rust version 1.26.0-nightly (482a913fb 2018-03-25)
info: downloading component 'rustc'
 49.7 MiB /  49.7 MiB (100 %)  11.8 MiB/s ETA:   0 s
info: downloading component 'rust-std'
 48.5 MiB /  48.5 MiB (100 %)  12.4 MiB/s ETA:   0 s
info: downloading component 'cargo'
info: downloading component 'rust-docs'
info: installing component 'rustc'
info: installing component 'rust-std'
info: installing component 'cargo'
info: installing component 'rust-docs'

  nightly-2018-03-26-armv7-unknown-linux-gnueabihf installed - rustc 1.26.0-nightly (482a913fb 2018-03-25)

> rustup install nightly-2018-03-27
info: syncing channel updates for 'nightly-2018-03-27-armv7-unknown-linux-gnueabihf'
info: latest update on 2018-03-27, rust version 1.26.0-nightly (188e693b3 2018-03-26)
error: component 'rust-docs' for 'armv7-unknown-linux-gnueabihf' is unavailable for download

> rustup install nightly
info: syncing channel updates for 'nightly-armv7-unknown-linux-gnueabihf'
info: latest update on 2018-04-01, rust version 1.26.0-nightly (517f24025 2018-03-31)
error: component 'rust-docs' for 'armv7-unknown-linux-gnueabihf' is unavailable for download

Meta

rustup

> rustup --version
rustup 1.11.0 (e751ff9f8 2018-02-13)

OS

In crouton environment on Chrome OS,

> cat /etc/os-release
NAME="Ubuntu"
VERSION="16.04.4 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.4 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial

> uname -a
Linux localhost 3.14.0 #1 SMP PREEMPT Wed Mar 14 21:13:13 PDT 2018 armv7l GNU/Linux

[endrin]

That's actually kinda fun

$ rustup component list | grep rust-docs
rust-docs-armv7-unknown-linux-gnueabihf (default)

$ rustup component remove rust-docs-armv7-unknown-linux-gnueabihf
error: toolchain 'nightly-armv7-unknown-linux-gnueabihf' does not contain component 
'rust-docs-armv7-unknown-linux-gnueabihf' for target 'armv7-unknown-linux-gnueabihf'

I'm trying rustup update on a RPi 3B:

 $ rustup --version
rustup 1.11.0 (e751ff9f8 2018-02-13)

$ uname -a
Linux localhost 4.14.31-v7+ #1104 SMP Thu Mar 29 16:52:18 BST 2018 armv7l GNU/Linux

$ cat /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 9 (stretch)"
NAME="Raspbian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"

[raviqqe]

@endrin Can you try just rustup component remove rust-docs and also rustup install nightly? The former is because rustup component remove accepts only unqualified component names, I guess.

[endrin]

Sorry, but no, the outcome is (almost) the same.

$ rustup component remove rust-docs
error: component 'rust-docs' for target 'armv7-unknown-linux-gnueabihf' is required for 
toolchain 'nightly-armv7-unknown-linux-gnueabihf' and cannot be removed

[dlrobertson]

The same thing happens for aarch64-unknown-linux-gnu. The last working version appears to be nightly-2018-03-26.

[fmckeogh]

What changed on nightly-2018-03-27?

[dbluhm]

I think I'm running into a similar problem.

$ rustup override set nightly
info: syncing channel updates for 'nightly-aarch64-unknown-linux-gnu'
info: latest update on 2018-04-02, rust version 1.26.0-nightly (06fa27d7c 2018-04-01)
error: component 'rust-docs' for 'aarch64-unknown-linux-gnu' is unavailable for download

[raviqqe]

This is related to the rustup/rust issue although the documentation components have seemed to be eliminated intentionally (rustup/rust PR #49187).

[endrin]

Yes, and as it has been an intended change on rust nightly builds, it now becomes a rustup issue as they need to change rust-docs to not being a required component.

[raviqqe]

Hi, everyone. As nightly builds seem to be fixed and work well now, please check it on your platforms. If no further bugs are reported here, this issue will be ready to close.

[endrin]

$ rustup update
info: syncing channel updates for 'nightly-armv7-unknown-linux-gnueabihf'
info: latest update on 2018-04-08, rust version 1.27.0-nightly (056f589fb 2018-04-07)
error: component 'rust-docs' for 'armv7-unknown-linux-gnueabihf' is unavailable for download
info: checking for self-updates

  nightly-armv7-unknown-linux-gnueabihf update failed - rustc 1.26.0-nightly (482a913fb 2018-03-25)

$ rustup component remove rust-docs
error: component 'rust-docs' for target 'armv7-unknown-linux-gnueabihf' is required for toolchain 'nightly-armv7-unknown-linux-gnueabihf' and cannot be removed

No luck

rustup install nightly-2018-04-06 works though

[dlrobertson]

relibc builds are working again! Thanks!

[raviqqe]

@endrin I think your problem is not relevant to this issue. Firstly, because your default toolchain points at an old broken one, you should run something like rustup default nightly rather than rustup update. Secondly, you cannot rustup component remove rust-docs anyway as it was required in previous versions.

[endrin]

Ok, I managed to get updates working by removing the default toolchain and installing it back with rustup-init. Then rustup update started working.