Check in CI that the crate builds on targets without libstd

[Amanieu]

Fixes #109

[Amanieu]

cc @tkaitchuck: This is blocked on const_random adding #![no_std].

[Amanieu]

@tkaitchuck It seems that public dependencies (public = true) are only supported on nightly.

[Amanieu]

Hmm I'm not sure why this worked before though...

[Amanieu]

Oh it's because const-random 0.1.3 didn't use public = true.

[Amanieu]

@tkaitchuck Can you please remove public = true from the const-random crate's Cargo.toml? And check that AHash compiles on stable.

[tkaitchuck]

Done. Const_random 0.1.6.

[Amanieu]

@bors r+

[bors]

📌 Commit 8a3654c has been approved by Amanieu

[bors]

⌛ Testing commit 8a3654c with merge 6c17fc5...

[bors]

💔 Test failed - checks-travis

[Amanieu]

@bors retry

[bors]

⌛ Testing commit 8a3654c with merge 2aa1c47...

[bors]

💔 Test failed - checks-travis

[Amanieu]

@tkaitchuck no_panic seems to be causing build failures on Windows, can you investigate?

[Amanieu]

@tkaitchuck Also, ahash seems to be importing the alloc crate, which is not actually used: https://travis-ci.com/rust-lang/hashbrown/jobs/223101557

[Amanieu]

The no_panic failure can be reproduced with:

cargo test --target x86_64-pc-windows-gnu --no-run

Make sure you have the mingw linker properly set up in ~/.cargo/config

[tkaitchuck]

I saw two issues with running that command the first was:
rust-lang/rust#33465
Which appears to still be an unresolved issue.

But I assume based on your comment about the config that this is not what you are referring to. The second issue was due to the optimizer not being aggressive enough. I've fixed this is 0.2.10. Hopefully that resolves the issue

[Amanieu]

@tkaitchuck Windows builds are still failing, I think you need to mark the #[no_panic] test with #[cfg(test)].

[tkaitchuck]

Ok, done.
But I am confused, was it building it with the 'dev' profile?

[Amanieu]

The builds seem to be fixed now. I'm just waiting on rust-lang/rust#63302 to land on nightly for the thumbv6m fix.

By the way, no-panic should be a dev-dependency now so it doesn't get pulled in outside of tests.

[Amanieu]

But I am confused, was it building it with the 'dev' profile?

The reason it was still failing is because the profile flags in Cargo.toml are only taken into account when building that crate directly. They are ignored when a crate is built as a dependency.

[Amanieu]

@bors r+

[bors]

📌 Commit 3239c2b has been approved by Amanieu

[bors]

⌛ Testing commit 3239c2b with merge ff41962...

[bors]

💔 Test failed - checks-travis

[Amanieu]

@bors r+

[bors]

📌 Commit 8ae33c9 has been approved by Amanieu

[bors]

⌛ Testing commit 8ae33c9 with merge ddc0542...

[bors]

💔 Test failed - checks-travis

[Amanieu]

@bors retry

[bors]

⌛ Testing commit 8ae33c9 with merge 0c1209a...

[bors]

☀️ Test successful - checks-travis
Approved by: Amanieu
Pushing 0c1209a to master...