ripgrep doesn't respect .ignore file

[tesuji]

What version of ripgrep are you using?

ripgrep 11.0.1 (rev 8ebc113)
-SIMD -AVX (compiled)
+SIMD -AVX (runtime)

How did you install ripgrep?

Build from source

What operating system are you using ripgrep on?

Debian GNU/Linux 9.9 (stretch) 4.9.0-9-amd64 #1 SMP Debian 4.9.168-1+deb9u2 (2019-05-13) x86_64 GNU/Linux

Describe your question, feature request, or bug.

Ripgrep doesn't respect .ignore file. My .ignore file:

src/test
src/rust-installer
src/doc/nomicon
src/tools/cargo
src/doc/reference
src/doc/book
src/tools/rls
src/tools/clippy
src/tools/rustfmt
src/tools/miri
src/doc/rust-by-example
src/llvm-emscripten
src/stdsimd
src/doc/rustc-guide
src/doc/edition-guide
src/llvm-project
src/doc/embedded-book

Project I grepped: https://github.com/rust-lang/rust
In the project root, I used rg -trust '^\s*extern\s+crate\s+[a-z][_a-zA-Z0-9]*;' src.
But ripgrep also included search result from src/test:

...
src/tools/rls/rls-analysis/src/test/mod.rs
17:extern crate env_logger;

src/test/run-make-fulldeps/issue-26006/in/time/lib.rs
2:extern crate libc;

src/test/ui/issues/issue-38875/issue-38875.rs
4:extern crate issue_38875_b;

src/test/run-make/thumb-none-qemu/example/src/main.rs
5:extern crate cortex_m;
9:extern crate panic_halt;
...

If this is a bug, what are the steps to reproduce the behavior?

See above.

If this is a bug, what is the actual behavior?

The output is really large, upto 18MiB with only stderr. I don't know if it is
appropriate to put it in gist.

If you actually need it, I will upload it somewhere later.

If this is a bug, what is the expected behavior?

I think ripgrep should ignore src/test path.

[tesuji]

On a second thoughts, I upload ripgrep output with --debug option here. Note that this
file only includes stderr from ripgrep.

rgoutput-stderr-only.zip

[BurntSushi]

Dupe of #829.