cargo clippy on chrono gives "thread 'main' has overflowed its stack"

[dten]

my crate was getting stackoverflow on running cargo clippy. narrowed it down to running just against chrono :( not sure how to investigate further

am using 09-21 nightly (windows-gnu and windows-msvc) and chrono v0.2.25

[llogiq]

That's interesting. I recently clippy'd chrono just fine. Then again I'm on Linux, which has larger stack sizes IIRC.

[devonhollowood]

I'm getting the same issue compiling a small crate on the latest nightly, with the latest clippy. cargo clippy is reporting a stack overflow. I get the following output:

cargo clippy --verbose
Compiling scc v0.1.0 (file:///Users/devon/Documents/Programming/coursera-algorithm/scc)
Running /Users/devon/.cargo/bin/cargo-clippy src/main.rs --crate-name scc --crate-type bin -g -L /Users/devon/Documents/Programming/coursera-algorithm/scc/target/debug/deps --sysroot /Users/devon/.multirust/toolchains/nightly-x86_64-apple-darwin -Zno-trans -C metadata=d7f6383090190b67 --out-dir /Users/devon/Documents/Programming/coursera-algorithm/scc/target/debug --emit=dep-info,link -L dependency=/Users/devon/Documents/Programming/coursera-algorithm/scc/target/debug/deps

thread 'main' has overflowed its stack
fatal runtime error: stack overflow
error: Could not compile scc.

Caused by:
process didn't exit successfully: /Users/devon/.cargo/bin/cargo-clippy src/main.rs --crate-name scc --crate-type bin -g -L /Users/devon/Documents/Programming/coursera-algorithm/scc/target/debug/deps --sysroot /Users/devon/.multirust/toolchains/nightly-x86_64-apple-darwin -Zno-trans -C metadata=d7f6383090190b67 --out-dir /Users/devon/Documents/Programming/coursera-algorithm/scc/target/debug --emit=dep-info,link -L dependency=/Users/devon/Documents/Programming/coursera-algorithm/scc/target/debug/deps (signal: 6, SIGABRT: process abort signal)

Interestingly, when I run clippy as a compiler plugin, it runs fine.

Let me know how I can help provide more info. My code is for a Coursera course, so I'm not supposed to publicly distribute it, but maybe we can figure out some way to give you guys the code without posting it publicly if you want to try to reproduce it.

[dten]

this isn't happening anymore for me

[mcarton]

Good to know, but AFAIK, we haven't done anything to fix that voluntarily 😕

[dten]

must be rustc behaving differently then i guess

[mcarton]

I'm going to close to keep things tidy-ish, but don't hesitate to reopen if this reappears.

[Luthaf]

I am still seeing it, on at least three crates: gcc v0.3.35, matrixmultiply v0.1.10 and rand
v0.3.14.

Is there any way to prevent clippy from running on the dependencies of a given crate?

[mcarton]

@Luthaf is that with clippy 0.0.96 and rustc rustc 1.14.0-nightly (f094206 2016-10-20)?

[Luthaf]

Yes, latest master and git HEAD for clippy. I ran

rustup update
rustup run nighlty cargo install -f --git https://github.com/Manishearth/rust-clippy/
cd ~/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/rand-0.3.14
rustup run nighlty cargo clippy --verbose

and I get

$ rustup run nighlty cargo clippy --verbose
   Compiling libc v0.2.17
     Running `/Volumes/Aldith/.cargo/bin/cargo-clippy /Volumes/Aldith/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/libc-0.2.17/src/lib.rs --crate-name libc --crate-type lib -g --cfg feature=\"default\" --cfg feature=\"use_std\" -C metadata=ad32fde1bd850538 -C extra-filename=-ad32fde1bd850538 --out-dir /Volumes/Aldith/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/rand-0.3.14/target/debug/deps --emit=dep-info,link -L dependency=/Volumes/Aldith/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/rand-0.3.14/target/debug/deps --cap-lints allow`
   Compiling rand v0.3.14 (file:///Volumes/Aldith/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/rand-0.3.14)
     Running `/Volumes/Aldith/.cargo/bin/cargo-clippy src/lib.rs --crate-name rand --crate-type lib -g -L /Volumes/Aldith/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/rand-0.3.14/target/debug/deps --sysroot /Volumes/Aldith/.multirust/toolchains/nightly-x86_64-apple-darwin -Zno-trans -C metadata=7d04d10f16e2f012 --out-dir /Volumes/Aldith/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/rand-0.3.14/target/debug/deps --emit=dep-info,link -L dependency=/Volumes/Aldith/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/rand-0.3.14/target/debug/deps --extern libc=/Volumes/Aldith/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/rand-0.3.14/target/debug/deps/liblibc-ad32fde1bd850538.rlib`

thread 'main' has overflowed its stack
fatal runtime error: stack overflow
error: Could not compile `rand`.

Caused by:
  process didn't exit successfully: `/Volumes/Aldith/.cargo/bin/cargo-clippy src/lib.rs --crate-name rand --crate-type lib -g -L /Volumes/Aldith/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/rand-0.3.14/target/debug/deps --sysroot /Volumes/Aldith/.multirust/toolchains/nightly-x86_64-apple-darwin -Zno-trans -C metadata=7d04d10f16e2f012 --out-dir /Volumes/Aldith/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/rand-0.3.14/target/debug/deps --emit=dep-info,link -L dependency=/Volumes/Aldith/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/rand-0.3.14/target/debug/deps --extern libc=/Volumes/Aldith/.cargo/registry/src/proxy-git.cwkhome.fun-1ecc6299db9ec823/rand-0.3.14/target/debug/deps/liblibc-ad32fde1bd850538.rlib` (signal: 6, SIGABRT: process abort signal)

[novacrazy]

I'm also still getting this on the latest nightly-x86_64-pc-windows-msvc - rustc 1.14.0-nightly (cae6ab1c4 2016-11-05), and have been since around 1.12.1 nightly.

[Arnavion]

Also repros with regex-syntax v0.3.9. rustc 1.16.0-nightly (4682271 2017-01-03) (windows 7 x64, MSVC) and clippy v0.0.106

The command-line invoked by cargo clippy is:

C:\Users\Arnavion\.cargo\bin\cargo-clippy.exe --crate-name regex_syntax src\lib.rs --crate-type lib -g -L "C:\Stuff\Sources\regex-syntax-0.3.9\target\debug\deps" -Zno-trans --cfg feature=\"cargo-clippy\" -C metadata=710a35bd5d642bd1 -C extra-filename=-710a35bd5d642bd1 --out-dir "C:\Stuff\Sources\regex-syntax-0.3.9\target\debug\deps" --emit=dep-info,link -L "dependency=C:\Stuff\Sources\regex-syntax-0.3.9\target\debug\deps"

I can also repro against a local rust build at the same commit as that nightly, from which I got the stack trace:

Long stack trace here

rustc_mir-11795104357d4203.dll!__chkstk()	Unknown
>	rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 22	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_temp(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 44	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_lvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 42	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_lvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 47	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_rvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 73	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 273	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_temp(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 44	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_operand(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 50	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_operand(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 37	Unknown
rustc_mir-11795104357d4203.dll!core::option::Option<rustc_mir::hair::ExprRef>::map<rustc_mir::hair::ExprRef,rustc::mir::Operand,&mut closure>(closure * f) Line 384	Unknown
rustc_mir-11795104357d4203.dll!collections::vec::{{impl}}::from_iter<rustc::mir::Operand,core::iter::Map<collections::vec::IntoIter<rustc_mir::hair::ExprRef>, closure>>(core::iter::Map<collections::vec::IntoIter<rustc_mir::hair::ExprRef>, closure>) Line 1613	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_rvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 177	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 273	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_temp(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 44	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_lvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 42	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_lvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 47	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::match_expr(rustc::mir::Lvalue * self, syntax_pos::Span destination, rustc::mir::BasicBlock block, rustc_mir::hair::ExprRef) Line 39	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 46	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_temp(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 44	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_lvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 42	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_lvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 47	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_rvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 73	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 273	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_temp(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 44	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_lvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 42	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_lvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 51	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_rvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 73	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 273	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_temp(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 44	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_operand(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 50	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_rvalue(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 132	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 273	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_temp(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 44	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_operand(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 50	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_operand(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 37	Unknown
rustc_mir-11795104357d4203.dll!core::option::Option<rustc_mir::hair::ExprRef>::map<rustc_mir::hair::ExprRef,rustc::mir::Operand,&mut closure>(closure * f) Line 384	Unknown
rustc_mir-11795104357d4203.dll!collections::vec::{{impl}}::from_iter<rustc::mir::Operand,core::iter::Map<collections::vec::IntoIter<rustc_mir::hair::ExprRef>, closure>>(core::iter::Map<collections::vec::IntoIter<rustc_mir::hair::ExprRef>, closure>) Line 1613	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 217	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_temp(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 44	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_operand(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 50	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_as_operand(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 37	Unknown
rustc_mir-11795104357d4203.dll!core::option::Option<rustc_mir::hair::ExprRef>::map<rustc_mir::hair::ExprRef,rustc::mir::Operand,&mut closure>(closure * f) Line 384	Unknown
rustc_mir-11795104357d4203.dll!collections::vec::{{impl}}::from_iter<rustc::mir::Operand,core::iter::Map<collections::vec::IntoIter<rustc_mir::hair::ExprRef>, closure>>(core::iter::Map<collections::vec::IntoIter<rustc_mir::hair::ExprRef>, closure>) Line 1613	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 217	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::in_scope<closure,()>(rustc::middle::region::CodeExtent block, rustc::mir::BasicBlock) Line 276	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 43	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 63	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::in_scope<closure,()>(rustc::middle::region::CodeExtent block, rustc::mir::BasicBlock) Line 276	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 43	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 275	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_into_pattern(rustc::mir::BasicBlock self, rustc_const_eval::pattern::Pattern block, rustc_mir::hair::ExprRef) Line 126	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::in_scope<closure,()>(rustc::middle::region::CodeExtent block, rustc::mir::BasicBlock) Line 276	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::in_scope<closure,()>(rustc::middle::region::CodeExtent block, rustc::mir::BasicBlock) Line 276	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 43	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 63	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::in_scope<closure,()>(rustc::middle::region::CodeExtent block, rustc::mir::BasicBlock) Line 276	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 43	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::match_expr(rustc::mir::Lvalue * self, syntax_pos::Span destination, rustc::mir::BasicBlock block, rustc_mir::hair::ExprRef) Line 105	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 46	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::in_scope<closure,()>(rustc::middle::region::CodeExtent block, rustc::mir::BasicBlock) Line 276	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 43	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::expr::into::{{impl}}::into_expr::{{closure}}(closure this, rustc_mir::build::Builder *) Line 198	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 275	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::match_expr(rustc::mir::Lvalue * self, syntax_pos::Span destination, rustc::mir::BasicBlock block, rustc_mir::hair::ExprRef) Line 105	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 46	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::expr_into_pattern(rustc::mir::BasicBlock self, rustc_const_eval::pattern::Pattern block, rustc_mir::hair::ExprRef) Line 126	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::in_scope<closure,()>(rustc::middle::region::CodeExtent block, rustc::mir::BasicBlock) Line 276	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::in_scope<closure,()>(rustc::middle::region::CodeExtent block, rustc::mir::BasicBlock) Line 276	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 43	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::stmt_expr(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 123	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::stmt_expr(rustc::mir::BasicBlock self, rustc_mir::hair::Expr block) Line 112	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::in_scope<closure,()>(rustc::middle::region::CodeExtent block, rustc::mir::BasicBlock) Line 275	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::in_scope<closure,()>(rustc::middle::region::CodeExtent block, rustc::mir::BasicBlock) Line 276	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 43	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::into_expr(rustc::mir::Lvalue * self, rustc::mir::BasicBlock destination, rustc_mir::hair::Expr block) Line 60	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::build::Builder::args_and_body(rustc::mir::BasicBlock self, &[(&rustc::ty::TyS, core::option::Option<&rustc::hir::Pat>)] block, rustc::middle::region::CodeExtent arguments, rustc::hir::Expr * argument_extent) Line 322	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::mir_map::{{impl}}::visit_fn(rustc_mir::mir_map::BuildMir * self, rustc::hir::intravisit::FnKind fk, rustc::hir::FnDecl * decl, rustc::hir::BodyId body_id, syntax_pos::Span id, syntax::ast::NodeId) Line 247	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::mir_map::{{impl}}::visit_item(rustc_mir::mir_map::BuildMir * self, rustc::hir::Item * item) Line 158	Unknown
rustc_mir-11795104357d4203.dll!rustc_mir::mir_map::build_mir_for_crate(rustc::ty::context::TyCtxt) Line 41	Unknown
rustc_driver-07bac56d454ab12e.dll!rustc_driver::driver::phase_3_run_analysis_passes::{{closure}}<closure,core::result::Result<(rustc::session::config::OutputFilenames, rustc_trans::CrateTranslation), usize>>(closure) Line 932	Unknown
rustc_driver-07bac56d454ab12e.dll!rustc::ty::context::TyCtxt::create_and_enter<closure,core::result::Result<core::result::Result<(rustc::session::config::OutputFilenames, rustc_trans::CrateTranslation), usize>, usize>>(rustc::ty::context::GlobalArenas * s, arena::DroplessArena * arenas, rustc::ty::Resolutions arena, rustc::middle::resolve_lifetime::NamedRegionMap crate_name, rustc::hir::map::Map) Line 785	Unknown
rustc_driver-07bac56d454ab12e.dll!rustc_driver::driver::compile_input(rustc::session::Session * sess, rustc_metadata::cstore::CStore * cstore, rustc::session::config::Input * input, core::option::Option<std::path::PathBuf> * outdir, core::option::Option<std::path::PathBuf> * output, core::option::Option<collections::vec::Vec<collections::string::String>> control, rustc_driver::driver::CompileController *) Line 241	Unknown
rustc_driver-07bac56d454ab12e.dll!rustc_driver::run_compiler(&[collections::string::String] args, rustc_driver::&mut CompilerCalls callbacks, core::option::Option<Box<FileLoader>>) Line 221	Unknown
cargo-clippy.exe!000000013f95d526()	Unknown
std-bfcb9c7b5a851d64.dll!000007feec4d5ba2() Line 98	Unknown
std-bfcb9c7b5a851d64.dll!000007feec4d330b() Line 51	Unknown
cargo-clippy.exe!000000013fa916f9()	Unknown
kernel32.dll!BaseThreadInitThunk�()	Unknown
ntdll.dll!RtlUserThreadStart�()	Unknown

but I'm not sure how reliable this is since it doesn't seem to properly match up against the actual rustc_mir code. It is 100% reproable though and has the same stack everytime.

[Manishearth]

cc @eddyb looks like a MIR bug? Clippy doesn't call into MIR functions (yet) and the stacktrace seems pure rustc.

We don't mutate anything iirc so this shouldn't be affected.