Adds Miri to CI/CD

[akern40]

Would close #1372

[bluss]

Some Miri issues are reported for crossbeam already, such as crossbeam-rs/crossbeam#545 I don't think that looks like it's the same one, not sure, but there could be reason to exclude certain features from miri for now - maybe parallel and blas?

[akern40]

Ya I don't think they're the same errors, unfortunately. What's really interesting is that, on my machine, using "-Zmiri-tree-borrows" fixes that error, but surfaces another:

MIRIFLAGS="-Zmiri-tree-borrows" cargo +nightly miri test -v --features docs -p ndarray --test par_azip test_par_azip1

outputs

Miri output

running 1 test
test test_par_azip1 ... warning: integer-to-pointer cast
   --> /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/atomic.rs:204:11
    |
204 |         &*(ptr as *const T)
    |           ^^^^^^^^^^^^^^^^^ integer-to-pointer cast
    |
    = help: this program is using integer-to-pointer casts or (equivalently) `ptr::with_exposed_provenance`, which means that Miri might miss pointer bugs in this program
    = help: see https://doc.rust-lang.org/nightly/std/ptr/fn.with_exposed_provenance.html for more details on that operation
    = help: to ensure that Miri does not miss bugs in your program, use Strict Provenance APIs (https://doc.rust-lang.org/nightly/std/ptr/index.html#strict-provenance, https://crates.io/crates/sptr) instead
    = help: you can then set `MIRIFLAGS=-Zmiri-strict-provenance` to ensure you are not relying on `with_exposed_provenance` semantics
    = help: Tree Borrows does not support integer-to-pointer casts, so the program is likely to go wrong when this pointer gets used
    = note: BACKTRACE on thread `unnamed-2`:
    = note: inside `<crossbeam_epoch::internal::Local as crossbeam_epoch::atomic::Pointable>::deref::<'_>` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/atomic.rs:204:11: 204:28
    = note: inside `crossbeam_epoch::atomic::Shared::<'_, crossbeam_epoch::internal::Local>::deref` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/atomic.rs:1421:9: 1421:22
    = note: inside `crossbeam_epoch::sync::list::List::<crossbeam_epoch::internal::Local>::insert` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/sync/list.rs:176:41: 176:58
    = note: inside `crossbeam_epoch::internal::Local::register` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/internal.rs:330:13: 330:65
    = note: inside `crossbeam_epoch::collector::Collector::register` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/collector.rs:45:9: 45:30
    = note: inside `crossbeam_epoch::default::HANDLE::__init` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/default.rs:34:34: 34:56
    = note: inside `<fn() -> crossbeam_epoch::collector::LocalHandle {crossbeam_epoch::default::HANDLE::__init} as std::ops::FnOnce<()>>::call_once - shim(fn() -> crossbeam_epoch::collector::LocalHandle {crossbeam_epoch::default::HANDLE::__init})` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:250:5: 250:71
    = note: inside `std::option::Option::<crossbeam_epoch::collector::LocalHandle>::unwrap_or_else::<fn() -> crossbeam_epoch::collector::LocalHandle {crossbeam_epoch::default::HANDLE::__init}>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/option.rs:1010:21: 1010:24
    = note: inside `std::thread::local_impl::LazyStorage::<crossbeam_epoch::collector::LocalHandle, ()>::initialize::<fn() -> crossbeam_epoch::collector::LocalHandle {crossbeam_epoch::default::HANDLE::__init}>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/thread_local/native/lazy.rs:64:17: 64:59
    = note: inside `std::thread::local_impl::LazyStorage::<crossbeam_epoch::collector::LocalHandle, ()>::get_or_init::<fn() -> crossbeam_epoch::collector::LocalHandle {crossbeam_epoch::default::HANDLE::__init}>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/thread_local/native/lazy.rs:56:40: 56:61
    = note: inside closure at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/thread_local/native/mod.rs:93:25: 93:54
    = note: inside `<{closure@crossbeam_epoch::default::HANDLE::{constant#0}::{closure#0}} as std::ops::FnOnce<(std::option::Option<&mut std::option::Option<crossbeam_epoch::collector::LocalHandle>>,)>>::call_once - shim` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:250:5: 250:71
    = note: inside `std::thread::LocalKey::<crossbeam_epoch::collector::LocalHandle>::try_with::<{closure@crossbeam_epoch::default::with_handle<{closure@crossbeam_epoch::default::is_pinned::{closure#0}}, bool>::{closure#0}}, bool>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:282:37: 282:55
    = note: inside `crossbeam_epoch::default::with_handle::<{closure@crossbeam_epoch::default::is_pinned::{closure#0}}, bool>` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/default.rs:59:5: 60:28
    = note: inside `crossbeam_epoch::default::is_pinned` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/default.rs:46:5: 46:45
    = note: inside `crossbeam_deque::deque::Stealer::<rayon_core::job::JobRef>::steal` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-deque-0.8.5/src/deque.rs:641:12: 641:30
    = note: inside `rayon_core::registry::WorkerThread::take_local_job` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:751:19: 751:39
    = note: inside `rayon_core::registry::WorkerThread::wait_until_cold` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:785:32: 785:53
    = note: inside `rayon_core::registry::WorkerThread::wait_until::<rayon_core::latch::OnceLatch>` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:769:13: 769:40
    = note: inside `rayon_core::registry::WorkerThread::wait_until_out_of_work` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:818:9: 818:65
    = note: inside `rayon_core::registry::main_loop` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:923:5: 923:43
    = note: inside `rayon_core::registry::ThreadBuilder::run` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:53:18: 53:33
    = note: inside closure at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:98:20: 98:32
    = note: inside `std::sys::backtrace::__rust_begin_short_backtrace::<{closure@<rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn::{closure#0}}, ()>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/backtrace.rs:154:18: 154:21
    = note: inside closure at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/mod.rs:522:17: 522:71
    = note: inside `<std::panic::AssertUnwindSafe<{closure@std::thread::Builder::spawn_unchecked_<'_, {closure@<rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn::{closure#0}}, ()>::{closure#1}::{closure#0}}> as std::ops::FnOnce<()>>::call_once` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/panic/unwind_safe.rs:272:9: 272:19
    = note: inside `std::panicking::r#try::do_call::<std::panic::AssertUnwindSafe<{closure@std::thread::Builder::spawn_unchecked_<'_, {closure@<rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn::{closure#0}}, ()>::{closure#1}::{closure#0}}>, ()>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:557:40: 557:43
    = note: inside `std::panicking::r#try::<(), std::panic::AssertUnwindSafe<{closure@std::thread::Builder::spawn_unchecked_<'_, {closure@<rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn::{closure#0}}, ()>::{closure#1}::{closure#0}}>>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:520:19: 520:88
    = note: inside `std::panic::catch_unwind::<std::panic::AssertUnwindSafe<{closure@std::thread::Builder::spawn_unchecked_<'_, {closure@<rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn::{closure#0}}, ()>::{closure#1}::{closure#0}}>, ()>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/panic.rs:345:14: 345:33
    = note: inside closure at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/mod.rs:521:30: 523:16
    = note: inside `<{closure@std::thread::Builder::spawn_unchecked_<'_, {closure@<rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn::{closure#0}}, ()>::{closure#1}} as std::ops::FnOnce<()>>::call_once - shim(vtable)` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:250:5: 250:71
    = note: inside `<std::boxed::Box<dyn std::ops::FnOnce()> as std::ops::FnOnce<()>>::call_once` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/boxed.rs:2229:9: 2229:52
    = note: inside `<std::boxed::Box<std::boxed::Box<dyn std::ops::FnOnce()>> as std::ops::FnOnce<()>>::call_once` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/boxed.rs:2229:9: 2229:52
    = note: inside `std::sys::pal::unix::thread::Thread::new::thread_start` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/pal/unix/thread.rs:105:17: 105:64

warning: integer-to-pointer cast
    --> /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/atomic.rs:1345:9
     |
1345 |         raw as *const _
     |         ^^^^^^^^^^^^^^^ integer-to-pointer cast
     |
     = note: BACKTRACE on thread `unnamed-2`:
     = note: inside `crossbeam_epoch::atomic::Shared::<'_, crossbeam_epoch::internal::Local>::as_raw` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/atomic.rs:1345:9: 1345:24
     = note: inside `crossbeam_epoch::internal::Local::register` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/internal.rs:332:24: 332:38
     = note: inside `crossbeam_epoch::collector::Collector::register` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/collector.rs:45:9: 45:30
     = note: inside `crossbeam_epoch::default::HANDLE::__init` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/default.rs:34:34: 34:56
     = note: inside `<fn() -> crossbeam_epoch::collector::LocalHandle {crossbeam_epoch::default::HANDLE::__init} as std::ops::FnOnce<()>>::call_once - shim(fn() -> crossbeam_epoch::collector::LocalHandle {crossbeam_epoch::default::HANDLE::__init})` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:250:5: 250:71
     = note: inside `std::option::Option::<crossbeam_epoch::collector::LocalHandle>::unwrap_or_else::<fn() -> crossbeam_epoch::collector::LocalHandle {crossbeam_epoch::default::HANDLE::__init}>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/option.rs:1010:21: 1010:24
     = note: inside `std::thread::local_impl::LazyStorage::<crossbeam_epoch::collector::LocalHandle, ()>::initialize::<fn() -> crossbeam_epoch::collector::LocalHandle {crossbeam_epoch::default::HANDLE::__init}>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/thread_local/native/lazy.rs:64:17: 64:59
     = note: inside `std::thread::local_impl::LazyStorage::<crossbeam_epoch::collector::LocalHandle, ()>::get_or_init::<fn() -> crossbeam_epoch::collector::LocalHandle {crossbeam_epoch::default::HANDLE::__init}>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/thread_local/native/lazy.rs:56:40: 56:61
     = note: inside closure at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/thread_local/native/mod.rs:93:25: 93:54
     = note: inside `<{closure@crossbeam_epoch::default::HANDLE::{constant#0}::{closure#0}} as std::ops::FnOnce<(std::option::Option<&mut std::option::Option<crossbeam_epoch::collector::LocalHandle>>,)>>::call_once - shim` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:250:5: 250:71
     = note: inside `std::thread::LocalKey::<crossbeam_epoch::collector::LocalHandle>::try_with::<{closure@crossbeam_epoch::default::with_handle<{closure@crossbeam_epoch::default::is_pinned::{closure#0}}, bool>::{closure#0}}, bool>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:282:37: 282:55
     = note: inside `crossbeam_epoch::default::with_handle::<{closure@crossbeam_epoch::default::is_pinned::{closure#0}}, bool>` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/default.rs:59:5: 60:28
     = note: inside `crossbeam_epoch::default::is_pinned` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-epoch-0.9.18/src/default.rs:46:5: 46:45
     = note: inside `crossbeam_deque::deque::Stealer::<rayon_core::job::JobRef>::steal` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-deque-0.8.5/src/deque.rs:641:12: 641:30
     = note: inside `rayon_core::registry::WorkerThread::take_local_job` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:751:19: 751:39
     = note: inside `rayon_core::registry::WorkerThread::wait_until_cold` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:785:32: 785:53
     = note: inside `rayon_core::registry::WorkerThread::wait_until::<rayon_core::latch::OnceLatch>` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:769:13: 769:40
     = note: inside `rayon_core::registry::WorkerThread::wait_until_out_of_work` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:818:9: 818:65
     = note: inside `rayon_core::registry::main_loop` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:923:5: 923:43
     = note: inside `rayon_core::registry::ThreadBuilder::run` at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:53:18: 53:33
     = note: inside closure at /Users/adamkern/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rayon-core-1.12.1/src/registry.rs:98:20: 98:32
     = note: inside `std::sys::backtrace::__rust_begin_short_backtrace::<{closure@<rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn::{closure#0}}, ()>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/backtrace.rs:154:18: 154:21
     = note: inside closure at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/mod.rs:522:17: 522:71
     = note: inside `<std::panic::AssertUnwindSafe<{closure@std::thread::Builder::spawn_unchecked_<'_, {closure@<rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn::{closure#0}}, ()>::{closure#1}::{closure#0}}> as std::ops::FnOnce<()>>::call_once` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/panic/unwind_safe.rs:272:9: 272:19
     = note: inside `std::panicking::r#try::do_call::<std::panic::AssertUnwindSafe<{closure@std::thread::Builder::spawn_unchecked_<'_, {closure@<rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn::{closure#0}}, ()>::{closure#1}::{closure#0}}>, ()>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:557:40: 557:43
     = note: inside `std::panicking::r#try::<(), std::panic::AssertUnwindSafe<{closure@std::thread::Builder::spawn_unchecked_<'_, {closure@<rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn::{closure#0}}, ()>::{closure#1}::{closure#0}}>>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:520:19: 520:88
     = note: inside `std::panic::catch_unwind::<std::panic::AssertUnwindSafe<{closure@std::thread::Builder::spawn_unchecked_<'_, {closure@<rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn::{closure#0}}, ()>::{closure#1}::{closure#0}}>, ()>` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/panic.rs:345:14: 345:33
     = note: inside closure at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/mod.rs:521:30: 523:16
     = note: inside `<{closure@std::thread::Builder::spawn_unchecked_<'_, {closure@<rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn::{closure#0}}, ()>::{closure#1}} as std::ops::FnOnce<()>>::call_once - shim(vtable)` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:250:5: 250:71
     = note: inside `<std::boxed::Box<dyn std::ops::FnOnce()> as std::ops::FnOnce<()>>::call_once` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/boxed.rs:2229:9: 2229:52
     = note: inside `<std::boxed::Box<std::boxed::Box<dyn std::ops::FnOnce()>> as std::ops::FnOnce<()>>::call_once` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/boxed.rs:2229:9: 2229:52
     = note: inside `std::sys::pal::unix::thread::Thread::new::thread_start` at /Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/pal/unix/thread.rs:105:17: 105:64

ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 4 filtered out; finished in 0.51s

error: the main thread terminated without waiting for all remaining threads

note: set `MIRIFLAGS=-Zmiri-ignore-leaks` to disable this check

error: aborting due to 1 previous error; 2 warnings emitted

error: test failed, to rerun pass `-p ndarray --test par_azip`

Caused by:
  process didn't exit successfully: `/Users/adamkern/.rustup/toolchains/nightly-aarch64-apple-darwin/bin/cargo-miri runner /Users/adamkern/GitManaged/ndarray-fork/target/miri/aarch64-apple-darwin/debug/deps/par_azip-33462f0143930b74 test_par_azip1` (exit status: 1)
note: test exited abnormally; to see the full output pass --nocapture to the harness.

rust-lang/miri#1371 is looking to address this, but it seems like a bit of a design problem. I think for now we run Miri without rayon, and we can circle back when that issue is resolved.

[akern40]

Close enough is good enough! Runs in 7 mins. No blas, because Miri can't do cblas_gemm. No rayon, because Miri can't handle the threads it leaves behind after the main one is finished. The following tests skipped in ndarray because they're just too damn slow:

• arith_seq_intersect_correct
• array_cow_tests::test_clone_from
• test_all_ndindex
• test_into_iter_sliced
• scaled_add_2
• scaled_add_3
• gen_mat_mul
• gen_mat_vec_mul
• vec_mat_mul

And oversampling_with_replacement_is_fine and sampling_behaves_as_expected are skipped in ndarray-rand because they're just too damn slow.