dep_kinds_filtering::tests::test_dep_kind* tests fail on ppc64le, armv7 and armhf

[WhyNotHugo]

Upgrading cargo-vendor-filterer to from 0.5.9 to 0.5.17, dep_kinds_filtering::tests::test_dep_kind_dev_only, dep_kinds_filtering::tests::test_dep_kind_normal_vs_no_build and dep_kinds_filtering::tests::test_dep_kind_build_vs_no_dev fail on ppc64le, armv7 and armhf.

I've come across this by upgrading the downstream Alpine package.

---- dep_kinds_filtering::tests::test_dep_kind_dev_only stdout ----
thread 'dep_kinds_filtering::tests::test_dep_kind_dev_only' panicked at src/dep_kinds_filtering.rs:180:23:
Got error: Failed to execute cargo tree: "error: failed to run `rustc` to learn about target-specific information\n\nCaused by:\n  process didn't exit successfully: `rustc - --crate-name ___ --print=file-names -Clink-arg=-Wl,-z,pack-relative-relocs --target x86_64-pc-windows-gnu --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro --print=sysroot --print=split-debuginfo --print=crate-name --print=cfg` (exit status: 1)\n  --- stderr\n  error: could not create LLVM TargetMachine for triple: x86_64-pc-windows-gnu: No available targets are compatible with triple \"x86_64-pc-windows-gnu\"\n\n"
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
---- dep_kinds_filtering::tests::test_dep_kind_build_vs_no_dev stdout ----
thread 'dep_kinds_filtering::tests::test_dep_kind_build_vs_no_dev' panicked at src/dep_kinds_filtering.rs:259:18:
One of get_required_packages() calls failed
---- dep_kinds_filtering::tests::test_dep_kind_normal_vs_no_build stdout ----
thread 'dep_kinds_filtering::tests::test_dep_kind_normal_vs_no_build' panicked at src/dep_kinds_filtering.rs:229:18:
One of get_required_packages() calls failed
failures:
    dep_kinds_filtering::tests::test_dep_kind_build_vs_no_dev
    dep_kinds_filtering::tests::test_dep_kind_dev_only
    dep_kinds_filtering::tests::test_dep_kind_normal_vs_no_build
test result: FAILED. 7 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s

Full build output for ppcle64, armv7 and armhf.

[WhyNotHugo]

I don't see an obvious pattern in the targets which are failing:

• Two are 32bit, but x86 works fine.
• Two are arm, but aarch64 works fine.
• One is 64 bit.

Unless I've misread something, the test failure is the exact same on all three platforms.

[cgwalters]

I don't know what the problem is, but #119 should make it easier to debug. Can you try that patch?

[WhyNotHugo]

Here's the output for armhf:

---- dep_kinds_filtering::tests::test_dep_kind_dev_only stdout ----
thread 'dep_kinds_filtering::tests::test_dep_kind_dev_only' panicked at src/dep_kinds_filtering.rs:178:10:
called `Result::unwrap()` on an `Err` value: Failed to execute cargo tree: "error: failed to run `rustc` to learn about target-specific information\n\nCaused by:\n  process didn't exit successfully: `rustc - --crate-name ___ --print=file-names --target x86_64-pc-windows-gnu --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro --print=sysroot --print=split-debuginfo --print=crate-name --print=cfg` (exit status: 1)\n  --- stderr\n  error: could not create LLVM TargetMachine for triple: x86_64-pc-windows-gnu: No available targets are compatible with triple \"x86_64-pc-windows-gnu\"\n\n"
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
---- dep_kinds_filtering::tests::test_dep_kind_normal_vs_no_build stdout ----
thread 'dep_kinds_filtering::tests::test_dep_kind_normal_vs_no_build' panicked at src/dep_kinds_filtering.rs:208:10:
called `Result::unwrap()` on an `Err` value: Failed to execute cargo tree: "error: failed to run `rustc` to learn about target-specific information\n\nCaused by:\n  process didn't exit successfully: `rustc - --crate-name ___ --print=file-names --target x86_64-pc-windows-gnu --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro --print=sysroot --print=split-debuginfo --print=crate-name --print=cfg` (exit status: 1)\n  --- stderr\n  error: could not create LLVM TargetMachine for triple: x86_64-pc-windows-gnu: No available targets are compatible with triple \"x86_64-pc-windows-gnu\"\n\n"
---- dep_kinds_filtering::tests::test_dep_kind_build_vs_no_dev stdout ----
thread 'dep_kinds_filtering::tests::test_dep_kind_build_vs_no_dev' panicked at src/dep_kinds_filtering.rs:239:10:
called `Result::unwrap()` on an `Err` value: Failed to execute cargo tree: "error: failed to run `rustc` to learn about target-specific information\n\nCaused by:\n  process didn't exit successfully: `rustc - --crate-name ___ --print=file-names --target x86_64-unknown-linux-gnu --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro --print=sysroot --print=split-debuginfo --print=crate-name --print=cfg` (exit status: 1)\n  --- stderr\n  error: could not create LLVM TargetMachine for triple: x86_64-unknown-linux-gnu: No available targets are compatible with triple \"x86_64-unknown-linux-gnu\"\n\n"
failures:
    dep_kinds_filtering::tests::test_dep_kind_build_vs_no_dev
    dep_kinds_filtering::tests::test_dep_kind_dev_only
    dep_kinds_filtering::tests::test_dep_kind_normal_vs_no_build
test result: FAILED. 7 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s

• Full log for armhf: https://gitlab.alpinelinux.org/WhyNotHugo/aports/-/jobs/1742890
• Full log for armv7: https://gitlab.alpinelinux.org/WhyNotHugo/aports/-/jobs/1742891
• Full log for ppc64le: https://gitlab.alpinelinux.org/WhyNotHugo/aports/-/jobs/1742893

[WhyNotHugo]

I think that LLVM indicates that it doesn't know target x86_64-pc-windows-gnu? I'm not sure that I'm interpreting this correctly.