Failed compilation/installation on ARM (Ubuntu 20.10 + Raspberry PI 4)

[maksymsur]

Did anybody make autopy to run on ARM?
I cannot install it neither with rust nightly tool-chain nor with make (see error bellow)

   Compiling autopy v0.1.0 (/home/maksym/autopy)
     Running `rustc --crate-name autopy src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type cdylib --emit=dep-info,link -C opt-level=3 -C embed-bitcode=no --crate-type cdylib -C metadata=6a007b4497ff4c93 --out-dir /home/maksym/autopy/target/release/deps -L dependency=/home/maksym/autopy/target/release/deps --extern autopilot=/home/maksym/autopy/target/release/deps/libautopilot-a34a6e8730651ca8.rlib --extern either=/home/maksym/autopy/target/release/deps/libeither-435fb7913833de59.rlib --extern image=/home/maksym/autopy/target/release/deps/libimage-abe18081ad42b31d.rlib --extern libc=/home/maksym/autopy/target/release/deps/liblibc-70af58b462853a99.rlib --extern pyo3=/home/maksym/autopy/target/release/deps/libpyo3-f74c31b40390b3ff.rlib`
error[E0557]: feature has been removed
 --> src/lib.rs:8:28
  |
8 | #![feature(specialization, const_fn)]
  |                            ^^^^^^^^ feature has been removed
  |
  = note: split into finer-grained feature gates

warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
 --> src/lib.rs:8:12
  |
8 | #![feature(specialization, const_fn)]
  |            ^^^^^^^^^^^^^^
  |
  = note: `#[warn(incomplete_features)]` on by default
  = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
  = help: consider using `min_specialization` instead, which is more stable and complete

error: aborting due to previous error; 1 warning emitted

For more information about this error, try `rustc --explain E0557`.
error: could not compile `autopy`

Caused by:
  process didn't exit successfully: `rustc --crate-name autopy src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type cdylib --emit=dep-info,link -C opt-level=3 -C embed-bitcode=no --crate-type cdylib -C metadata=6a007b4497ff4c93 --out-dir /home/maksym/autopy/target/release/deps -L dependency=/home/maksym/autopy/target/release/deps --extern autopilot=/home/maksym/autopy/target/release/deps/libautopilot-a34a6e8730651ca8.rlib --extern either=/home/maksym/autopy/target/release/deps/libeither-435fb7913833de59.rlib --extern image=/home/maksym/autopy/target/release/deps/libimage-abe18081ad42b31d.rlib --extern libc=/home/maksym/autopy/target/release/deps/liblibc-70af58b462853a99.rlib --extern pyo3=/home/maksym/autopy/target/release/deps/libpyo3-f74c31b40390b3ff.rlib` (exit status: 1)
error: cargo failed with code: 101

make: *** [Makefile:5: build] Error 1

[Karobben]

I got exactly the same error codes

[Karobben]

I got exactly the same error codes

[rimvislt]

got errors caused by
"""
...
error: could not compile pyo3

Caused by:
  process didn't exit successfully: `rustc --crate-name pyo3 --edition=2018

""""

[Karobben]

Thanks. I gave up on python==3.9.5 and switched back to 3.7.6 with no trouble.

[meflakcannon]

Make sure your rust toolchain is pointing to the nightly not the current. Or you will not have features needed. You will likley then experience an issue compiling for a feature not enabled. Which is where #64 discusses the failed feature.

[maksymsur]

While activating nightly toolchain I got the following error which could be resolved with 'rustup toolchain add nightly-2019-10-05 --profile minimal:

maksym@nex20:~/autopy$ rustup default nightly-2019-10-05
info: syncing channel updates for 'nightly-2019-10-05-aarch64-unknown-linux-gnu'
info: latest update on 2019-10-05, rust version 1.40.0-nightly (2e7244807 2019-10-04)
error: some components unavailable for download for channel 'nightly-2019-10-05': 'clippy' for target 'aarch64-unknown-linux-gnu', 'rustfmt' for target 'aarch64-unknown-linux-gnu'Sometimes not all components are available in any given nightly. If you don't need the components, you could try a minimal installation with:

    rustup toolchain add nightly-2019-10-05 --profile minimal

I managed to solve all the issues and compiled with Make.

The following problem:

     Running `rustc --crate-name autopy src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type cdylib --emit=dep-info,link -C opt-level=3 -C embed-bitcode=no --crate-type cdylib -C metadata=6a007b4497ff4c93 --out-dir /home/maksym/autopy/target/release/deps -L dependency=/home/maksym/autopy/target/release/deps --extern autopilot=/home/maksym/autopy/target/release/deps/libautopilot-a34a6e8730651ca8.rlib --extern either=/home/maksym/autopy/target/release/deps/libeither-435fb7913833de59.rlib --extern image=/home/maksym/autopy/target/release/deps/libimage-abe18081ad42b31d.rlib --extern libc=/home/maksym/autopy/target/release/deps/liblibc-70af58b462853a99.rlib --extern pyo3=/home/maksym/autopy/target/release/deps/libpyo3-f74c31b40390b3ff.rlib`
error[E0557]: feature has been removed
 --> src/lib.rs:8:28
  |
8 | #![feature(specialization, const_fn)]
  |                            ^^^^^^^^ feature has been removed
  |
  = note: split into finer-grained feature gates

may be fixed with the suggested solution:

• change const_fn in line 8 of lib.rs into const_fn_transmute

8+ | #![feature(specialization, const_fn_transmute)]

Also I had to rewrite lines 5 and 17 of Makefile to better reflect standard ARM OS env variables + fix tipos --> otherwise building fails:

5+ |      python3 setup.py build

17+ |     pip3 install .

Hope that helps. Closing the issue for now.