Latest ARM build

[er0k]

I noticed there is no official ARM build for v0.2.20 on the releases page 😢

Maybe it is an issue with the CD workflow?

[er0k]

I tried compiling myself on a Pi but I couldn't get it to build, using Raspbian buster:

$ uname -srm
Linux 4.19.75+ armv6l

$ rustc --version
rustc 1.38.0 (625451e37 2019-09-23)

$ cargo --version
cargo 1.38.0 (23ef9a4ef 2019-08-20)

$ git show --summary
commit c1afcda5205ddff38d0d84588484afa662dea88e (HEAD -> master, tag: v0.2.20, origin/master, origin/HEAD)
Author: Sven Lechner <SirWindfield@users.noreply.github.com>
Date:   Sun Nov 3 16:53:48 2019 +0100

    bump version to v0.2.20

$ cargo build --release                                                                                                         
   Compiling semver-parser v0.7.0
error: Could not compile `semver-parser`.

Caused by:
  process didn't exit successfully: `rustc --crate-name semver_parser /home/pi/.cargo/registry/src/github.com-1ecc6299db9ec823/semver-parser-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C metadata=d61c05a509e7bd82 -C extra-filename=-d61c05a509e7bd82 --out-dir /home/pi/spotifyd/target/release/deps -L dependency=/home/pi/spotifyd/target/release/deps
--cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference)

edit: I also tried on a newer Pi 3 and got a similar result:

$ uname -srm
Linux 4.19.75-v7+ armv7l

$ cargo build --release
   Compiling semver-parser v0.7.0
   Compiling libc v0.2.65
   Compiling proc-macro2 v1.0.6
   Compiling byteorder v1.3.2
error: Could not compile `libc`.

Caused by:
  process didn't exit successfully: `rustc --crate-name build_script_build /home/pi/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.65/build.rs --color always --crate-type bin --emit=dep-info,link -C opt-level=3 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=e7a45c6bd9cf2e76 -C extra-filename=-e7a45c6bd9cf2e76 --out-dir /home/pi/spotifyd/target/release/build/libc-e7a45c6bd9cf2e76 -L dependency=/home/pi/spotifyd/target/release/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference)
warning: build failed, waiting for other jobs to finish...
error: Could not compile `proc-macro2`.

Caused by:
  process didn't exit successfully: `rustc --edition=2018 --crate-name build_script_build /home/pi/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.6/build.rs --color always --crate-type bin --emit=dep-info,link -C opt-level=3 --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=7e8798823c7101b3 -C extra-filename=-7e8798823c7101b3 --out-dir /home/pi/spotifyd/target/release/build/proc-macro2-7e8798823c7101b3 -L dependency=/home/pi/spotifyd/target/release/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference)
warning: build failed, waiting for other jobs to finish...
error: Could not compile `semver-parser`.

Caused by:
  process didn't exit successfully: `rustc --crate-name semver_parser /home/pi/.cargo/registry/src/github.com-1ecc6299db9ec823/semver-parser-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C metadata=bef76ad9970293e1 -C extra-filename=-bef76ad9970293e1 --out-dir /home/pi/spotifyd/target/release/deps -L dependency=/home/pi/spotifyd/target/release/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference)
warning: build failed, waiting for other jobs to finish...
error: Could not compile `byteorder`.

Caused by:
  process didn't exit successfully: `rustc --crate-name build_script_build /home/pi/.cargo/registry/src/github.com-1ecc6299db9ec823/byteorder-1.3.2/build.rs --color always --crate-type bin --emit=dep-info,link -C opt-level=3 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=003e47e9f5d72821 -C extra-filename=-003e47e9f5d72821 --out-dir /home/pi/spotifyd/target/release/build/byteorder-003e47e9f5d72821 -L dependency=/home/pi/spotifyd/target/release/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference)

[mainrs]

Yep, I noticed that the build failed but I have no clue why. It might be that some library needs a bump. Not sure in what changelogs I've read it but someone mentioned that they had to bump libc to make it compile on ARM again. This is probably happening here :(

[er0k]

I used the workaround mentioned in rust-lang/rust#62896 (comment) and added the following to Cargo.toml

[profile.release]
codegen-units = 1

I'm new to rust and that thread is a bit over my head, but this seems to at least get past the previous error and it can now compile successfully on my Pi 3

[boisei0]

I don't know if this is relevant or will help, but I just succeeded in building 0.20.0 on ARM64 (aarch64). Sounds like an issue specific to the other ARM architectures. Here's my set up:

$ uname -srm 
Linux 5.3.0-1012-raspi2 aarch64
$ rustc --version
rustc 1.39.0 (4560ea788 2019-11-04)
$ cargo --version
cargo 1.39.0 (1c6ec66d5 2019-09-30)
$ git show --summary
commit c1afcda5205ddff38d0d84588484afa662dea88e (HEAD -> master, tag: v0.2.20, origin/master, origin/HEAD)
Author: Sven Lechner <SirWindfield@users.noreply.github.com>
Date:   Sun Nov 3 16:53:48 2019 +0100

    bump version to v0.2.20

Not a single error or warning appeared during compiling. Running on ubuntu server 19.10, arm64, on a Pi 4 4gb edition.

[er0k]

Looks like this was fixed upstream. I did rustup update to get the same version of rustc/cargo as @boisei0 and now I can build on ARMv7 without the workaround I mentioned above 🎉

[mainrs]

perfect. Glad that it works again!

[er0k]

@sirwindfield assuming this was the problem with the CD workflow not building the latest ARM binary for the releases page, if you kick off a new workflow now, it should fix that, right?

[mainrs]

I started the builds again but IIRC they will always checkout the commit that triggered them, meaning that a fix wouldn't be applied to them. However, in the case of the ARM builds this shouldn't be a problem.

[bjo81]

What about ARM builds for 0.2.23?