Add x86_64-linux-android build support

[malbarbo]

No description provided.

[malbarbo]

Target x86_64-android-linux was recently added.

[japaric]

Thanks, @malbarbo!

@homunkulus r+

[homunkulus]

📌 Commit 528480f has been approved by japaric

[homunkulus]

⌛ Testing commit 528480f with merge 528480f...

[homunkulus]

💔 Test failed - status-travis

[malbarbo]

The error seems to be unrelated. Let's try again?

[japaric]

The PowerPC problem should be fixed now.

@homunkulus r+

[homunkulus]

💡 This pull request was already approved, no need to approve it again.

• This pull request previously failed. You should add more commits to fix the bug, or use retry to trigger a build again.
• There's another pull request that is currently being tested, blocking this pull request: Fixes permission issues with userns on Docker host #96

[homunkulus]

📌 Commit 528480f has been approved by japaric

[japaric]

@homunkulus retry

[homunkulus]

⌛ Testing commit 528480f with merge bdceaa9...

[homunkulus]

💔 Test failed - status-travis

[malbarbo]

Unrelated again?

[japaric]

+cargo update -p time
error: package id specification time matched no packages

https://travis-ci.org/japaric/cross/jobs/227169983#L6898

[malbarbo]

I saw the wrong log, sorry. I think that chrono (and time) dependency (rust-lang/cargo#4069) was removed in the middle of the test! That bad luck! Maybe we can fix a revision...

Fixed now.

[japaric]

Thanks. Let's try again.

@homunkulus r+

BTW, could you please next time push a new commit rather than amend the last one. That way it's easier for me to see the latest change you made.

[homunkulus]

📌 Commit 125db52 has been approved by japaric

[homunkulus]

⌛ Testing commit 125db52 with merge fc7b72b...

[homunkulus]

💔 Test failed - status-travis

[malbarbo]

The problem is the new lint rust-lang/rust#41907. How should we proceed? Use a specific version of nightly?

It seems that using nightly and head of git repositories of cargo, etc, is a fragile approach...

[malbarbo]

BTW, could you please next time push a new commit rather than amend the last one. That way it's easier for me to see the latest change you made.

Oh, sorry for that.

[malbarbo]

@japaric How can we proceed with this?

[japaric]

There's a fix for the unused macro warning / error in rust-lang/compiler-builtins#165.

We could shield us from some of these problems using "--cap-lints" (I think that was the name of the flag) to ignore warnings / errors due to warnings.

[malbarbo]

Thanks for fixing it. According to https://github.com/rust-lang/rfcs/blob/master/text/1193-cap-lints.md the option is --cap-lints allow, but cross does not allows passing args to rustc via RUSTFLAGS...

[malbarbo]

Let's try again?

[japaric]

@homunkulus r+

[homunkulus]

💡 This pull request was already approved, no need to approve it again.

• This pull request previously failed. You should add more commits to fix the bug, or use retry to trigger a build again.

[homunkulus]

📌 Commit 125db52 has been approved by japaric

[japaric]

@homunkulus retry

[homunkulus]

⌛ Testing commit 125db52 with merge e9ad79f...

[homunkulus]

☀️ Test successful - status-travis
Approved by: japaric
Pushing e9ad79f to master...