fix to pass 7 tests in run::test and test/run-pass/rtio-processes.rs on android

[yichoi]

To enable test on android bot #9120

run::tests::test_finish_once
run::tests::test_finish_twice
run::tests::test_finish_with_output_once
run::tests::test_finish_with_output_twice
run::tests::test_process_output_error
run::tests::test_process_output_output
run::tests::test_process_status

and

test/run-pass/rtio-processes.rs

It looks to me RtioProcess does not work properly on android.

[yichoi]

logs are

task 'tests::test_finish_once' failed at 'assertion failed: `(left == right) && (right == left)` (left: `1081820432`, right: `1`)', run.rs:475
FAILED
test tests::test_finish_twice ... task 'tests::test_finish_twice' failed at 'assertion failed: `(left == right) && (right == left)` (left: `1081820432`, right: `1`)', run.rs:490
FAILED
test tests::test_finish_with_output_once ... task 'tests::test_finish_with_output_once' failed at 'assertion failed: `(left == right) && (right == left)` (left: `1081820432`, right: `0`)', run.rs:520
FAILED
test tests::test_finish_with_output_twice ... task 'tests::test_finish_with_output_twice' failed at 'assertion failed: `(left == right) && (right == left)` (left: `1081820432`, right: `0`)', run.rs:566
FAILED
test tests::test_inherit_env ... ok
test tests::test_keep_current_working_dir ... ok
test tests::test_pipes ... ignored
test tests::test_process_output_error ... task 'tests::test_process_output_error' failed at 'assertion failed: `(left == right) && (right == left)` (left: `1081820432`, right: `255`)', run.rs:408
FAILED
test tests::test_process_output_output ... task 'tests::test_process_output_output' failed at 'assertion failed: `(left == right) && (right == left)` (left: `1081820432`, right: `0`)', run.rs:382
FAILED
test tests::test_process_status ... task 'tests::test_process_status' failed at 'assertion failed: `(left == right) && (right == left)` (left: `1081820432`, right: `1`)', run.rs:355
FAILED

failures:
    tests::test_finish_once
    tests::test_finish_twice
    tests::test_finish_with_output_once
    tests::test_finish_with_output_twice
    tests::test_process_output_error
    tests::test_process_output_output
    tests::test_process_status

[alexcrichton]

Hm this may be an FFI issue with libuv. I realized during my uv rewrite that libuv is giving us an int64_t exit status and we think it's a c_int.

Once #10321 lands this may be fixed.

[pnkfelix]

Hmm, this issue number has propagated to several more tests that are cfg-disabled on android. (Some of which are now failing when I mixed in a Boehm/BDW conservative GC into the runtime, in particular io::process::tests::stdin_works::native.)

[pnkfelix]

Also, #10321 has landed, so it would be good to determine if these tests now work on Android.

[huonw]

Triage: I have no idea how to test this, but a lot has changed in a year (especially the removal of green & libuv), so these may be magically fixed; if someone can check.

[steveklabnik]

Triage: rtio is gone, but all these tests in std::process are still ignored for android.

[euclio]

I tried to run these tests with ./src/ci/docker/run.sh arm-android but they all failed with No such file or directory, which seems suspect (at least for the tests that invoke mkdir, true, echo, etc.). Is there a better way to test? I have an android device available.