Compiler panic compiling libcore #43982
Comments
Mark-Simulacrum
added
C-bug
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Just hit this myself. It only happens in my builds if I pass Note that it does need to be a clean build when changing At commit a209539 |
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Ping @michaelwoerister, since you wrote commit 783ccc4 implicated in OP, any ideas? |
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Hm, looks like the |
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I just ran into this trying to run the CI container build for FreeBSD, to investigate #44433. I worked around it for now by removing |
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ping @michaelwoerister I just ran into this |
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Maybe @nrc can help debug this? It seems that in |
How can NetBSD users inject the As a workaround, I'm using rustup to install rustc and cargo in NetBSD, now that rustup features support for the NetBSD kernel :) |
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Does anyone have a minimal test case for this? That NodeId=1 seems suspicious, it would be good to see the source code where this happened to get some idea about what is going on. Maybe it is a synthetic argument for a |
kennytm
added
T-bootstrap
ghost
mentioned this issue
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#63663 seems like it has an easy reproduction |
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Nominating. This has been reported at least 6 times, and is being hit in random PR builds too. |
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Visiting for compiler triage. This problems seems to be closely tied to save-analysis, correct? @Xanewok, maybe you can investigate, and ping @michaelwoerister for help where needed? |
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Marking P-high and assigning to @Xanewok, because I'm optimistic like that. |
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This looks strikingly similar to #60649 where we didn't nest typeck tables in the AST visitor. In this case it's extern { fn func(arg: SomeType); } |
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The backtrace in the OP is outdated or at least that's not the issue I first encountered. In general it seems that generating save-analysis from libcore triggers a debug-assertion (which is why it came up recently when running dist builds with I managed to reproduce it with: # config.toml
[build]
extended = true
[rust]
debug-assertions = true
tools = ["analysis"]by running The current backtrace I'm getting is as follows: on most recent which I believe stumbles on rust/src/libcore/iter/adapters/flatten.rs Lines 245 to 260 in 9776723 most specifically when processing the associated |
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With pub trait Trait {
type Assoc;
}
pub fn func() {
fn _inner<U: Trait>(_: U::Assoc) {}
} |
… r=varkor
save-analysis: Nest typeck tables when processing functions/methods
Fixes an issue where we did not nest tables correctly when resolving
associated types in formal argument/return type positions.
This was the minimized reproduction case that I tested the fix on:
```rust
pub trait Trait {
type Assoc;
}
pub struct A;
pub fn func() {
fn _inner1<U: Trait>(_: U::Assoc) {}
fn _inner2<U: Trait>() -> U::Assoc { unimplemented!() }
impl A {
fn _inner1<U: Trait>(self, _: U::Assoc) {}
fn _inner2<U: Trait>(self) -> U::Assoc { unimplemented!() }
}
}
```
using `debug_assertions`-enabled rustc and by additionally passing `-Zsave-analysis`.
Unfortunately the original assertion fired is a *debug* one and from what I can tell we don't run the tests with these on, so I'm not adding a test here. If I missed it and there is a way to run tests with these on, I'd love to add a test case for this.
Closes rust-lang#63663
Closes rust-lang#50328
Closes rust-lang#43982
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Last rebase was 11. Aug. Using rust-llvm-2017-07-20.
EDIT: First bad commit is 783ccc4
Compiling with:
error: internal compiler error: src/librustc/ty/context.rs:237: node unknown node (id=1) with HirId::owner DefId { krate: CrateNum(0), node: DefIndex(0) => core/a38a63e } cannot be placed in TypeckTables with local_id_root DefId { krate: CrateNum(0), node: DefIndex(1533) => core/a38a63e::panicking[0]::panic_fmt[0] } note: the compiler unexpectedly panicked. this is a bug. note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports note: rustc 1.21.0-dev (41193c16f 2017-08-18) running on x86_64-unknown-linux-gnu note: run with `RUST_BACKTRACE=1` for a backtrace thread 'rustc' panicked at 'Box<Any>', src/librustc_errors/lib.rs:486:8 note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. stack backtrace: 0: std::sys::imp::backtrace::tracing::imp::unwind_backtrace at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49 1: std::sys_common::backtrace::_print at src/libstd/sys_common/backtrace.rs:71 2: std::sys_common::backtrace::print at src/libstd/sys_common/backtrace.rs:60 3: std::panicking::default_hook::{{closure}} at src/libstd/panicking.rs:381 4: std::panicking::default_hook at src/libstd/panicking.rs:391 5: std::panicking::rust_panic_with_hook at src/libstd/panicking.rs:611 6: std::panicking::begin_panic at ./src/libstd/panicking.rs:572 7: rustc_errors::Handler::bug at src/librustc_errors/lib.rs:486 8: rustc::session::opt_span_bug_fmt::{{closure}} at src/librustc/session/mod.rs:852 9: rustc::ty::context::tls::with_opt::{{closure}} at src/librustc/ty/context.rs:1289 10: rustc::ty::context::tls::with::{{closure}} at src/librustc/ty/context.rs:1278 11: <std::thread::local::LocalKey<T>>::try_with at ./src/libstd/thread/local.rs:365 12: <std::thread::local::LocalKey<T>>::with at ./src/libstd/thread/local.rs:279 13: rustc::ty::context::tls::with at src/librustc/ty/context.rs:1274 14: rustc::ty::context::tls::with_opt at src/librustc/ty/context.rs:1289 15: rustc::session::opt_span_bug_fmt at src/librustc/session/mod.rs:848 16: rustc::session::bug_fmt at src/librustc/session/mod.rs:832 17: rustc::ty::context::validate_hir_id_for_typeck_tables::{{closure}} at src/librustc/ty/context.rs:237 18: rustc::ty::context::tls::with::{{closure}} at src/librustc/ty/context.rs:1278 19: <std::thread::local::LocalKey<T>>::try_with at ./src/libstd/thread/local.rs:365 20: <std::thread::local::LocalKey<T>>::with at ./src/libstd/thread/local.rs:279 21: rustc::ty::context::tls::with at src/librustc/ty/context.rs:1274 22: rustc::ty::context::validate_hir_id_for_typeck_tables at src/librustc/ty/context.rs:232 23: rustc::ty::context::TypeckTables::node_id_to_type_opt at src/librustc/ty/context.rs:448 24: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O>>::process_formals at src/librustc_save_analysis/dump_visitor.rs:322 25: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O> as syntax::visit::Visitor<'l>>::visit_foreign_item::{{closure}} at src/librustc_save_analysis/dump_visitor.rs:1518 26: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O>>::nest_tables at src/librustc_save_analysis/dump_visitor.rs:115 27: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O> as syntax::visit::Visitor<'l>>::visit_foreign_item at src/librustc_save_analysis/dump_visitor.rs:1518 28: syntax::visit::walk_item at ./src/libsyntax/visit.rs:146 29: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O> as syntax::visit::Visitor<'l>>::visit_item at src/librustc_save_analysis/dump_visitor.rs:1254 30: syntax::visit::walk_stmt at ./src/libsyntax/visit.rs:624 31: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O> as syntax::visit::Visitor<'l>>::visit_stmt at src/librustc_save_analysis/dump_visitor.rs:1499 32: syntax::visit::walk_block at ./src/libsyntax/visit.rs:146 33: syntax::visit::Visitor::visit_block at ./src/libsyntax/visit.rs:66 34: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O>>::process_fn::{{closure}}::{{closure}} at src/librustc_save_analysis/dump_visitor.rs:464 35: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O>>::nest_scope at src/librustc_save_analysis/dump_visitor.rs:100 36: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O>>::process_fn::{{closure}} at src/librustc_save_analysis/dump_visitor.rs:464 37: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O>>::nest_tables at src/librustc_save_analysis/dump_visitor.rs:112 38: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O>>::process_fn at src/librustc_save_analysis/dump_visitor.rs:464 39: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O> as syntax::visit::Visitor<'l>>::visit_item at src/librustc_save_analysis/dump_visitor.rs:1206 40: syntax::visit::walk_mod at ./src/libsyntax/visit.rs:146 41: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O> as syntax::visit::Visitor<'l>>::visit_item::{{closure}} at src/librustc_save_analysis/dump_visitor.rs:1224 42: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O>>::nest_scope at src/librustc_save_analysis/dump_visitor.rs:100 43: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O> as syntax::visit::Visitor<'l>>::visit_item at src/librustc_save_analysis/dump_visitor.rs:1224 44: syntax::visit::walk_mod at ./src/libsyntax/visit.rs:146 45: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O> as syntax::visit::Visitor<'l>>::visit_mod::{{closure}} at src/librustc_save_analysis/dump_visitor.rs:1111 46: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O>>::nest_scope at src/librustc_save_analysis/dump_visitor.rs:100 47: <rustc_save_analysis::dump_visitor::DumpVisitor<'l, 'tcx, 'll, O> as syntax::visit::Visitor<'l>>::visit_mod at src/librustc_save_analysis/dump_visitor.rs:1111 48: syntax::visit::walk_crate at ./src/libsyntax/visit.rs:180 49: <rustc_save_analysis::DumpHandler<'a> as rustc_save_analysis::SaveHandler>::save at src/librustc_save_analysis/lib.rs:939 50: rustc_save_analysis::process_crate at ./src/librustc_save_analysis/lib.rs:986 51: rustc_driver::enable_save_analysis::{{closure}}::{{closure}} at src/librustc_driver/lib.rs:697 52: rustc::util::common::time at ./src/librustc/util/common.rs:48 53: rustc_driver::enable_save_analysis::{{closure}} at src/librustc_driver/lib.rs:696 54: rustc_driver::driver::compile_input::{{closure}} at src/librustc_driver/driver.rs:217 55: rustc_driver::driver::phase_3_run_analysis_passes::{{closure}} at src/librustc_driver/driver.rs:1101 56: rustc::ty::context::tls::enter::{{closure}} at ./src/librustc/ty/context.rs:1262 57: <std::thread::local::LocalKey<T>>::try_with at ./src/libstd/thread/local.rs:365 58: <std::thread::local::LocalKey<T>>::with at ./src/libstd/thread/local.rs:279 59: rustc::ty::context::tls::enter at ./src/librustc/ty/context.rs:1259 60: rustc::ty::context::tls::enter_global::{{closure}} at ./src/librustc/ty/context.rs:1246 61: <std::thread::local::LocalKey<T>>::try_with at ./src/libstd/thread/local.rs:365 62: <std::thread::local::LocalKey<T>>::with at ./src/libstd/thread/local.rs:279 63: rustc::ty::context::tls::enter_global at ./src/librustc/ty/context.rs:1243 64: rustc::ty::context::TyCtxt::create_and_enter at ./src/librustc/ty/context.rs:1024 65: rustc_driver::driver::phase_3_run_analysis_passes at src/librustc_driver/driver.rs:1014 66: rustc_driver::driver::compile_input at src/librustc_driver/driver.rs:196 67: rustc_driver::run_compiler at src/librustc_driver/lib.rs:316 68: rustc_driver::main::{{closure}} at src/librustc_driver/lib.rs:1338 69: rustc_driver::run::{{closure}} at src/librustc_driver/lib.rs:132 70: rustc_driver::monitor::{{closure}} at src/librustc_driver/lib.rs:1255 error: Could not compile `core`. Caused by: process didn't exit successfully: `/home/dvc/repos/riscv-rust/rust/build/bootstrap/debug/rustc --crate-name core src/libcore/lib.rs --error-format json --crate-type lib --emit=dep-info,link -C debug-assertions=off -C overflow-checks=on -C metadata=0f4c6fa20e4370e3 -C extra-filename=-0f4c6fa20e4370e3 --out-dir /home/dvc/repos/riscv-rust/rust/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/debug/deps --target x86_64-unknown-linux-gnu -L dependency=/home/dvc/repos/riscv-rust/rust/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/debug/deps -L dependency=/home/dvc/repos/riscv-rust/rust/build/x86_64-unknown-linux-gnu/stage1-std/debug/deps` (exit code: 101) thread 'main' panicked at 'command did not execute successfully: "/home/dvc/repos/riscv-rust/rust/build/x86_64-unknown-linux-gnu/stage0/bin/cargo" "build" "-j" "4" "--target" "x86_64-unknown-linux-gnu" "--features" "panic-unwind debug-jemalloc jemalloc backtrace" "--manifest-path" "/home/dvc/repos/riscv-rust/rust/src/libstd/Cargo.toml" "--message-format" "json" expected success, got: exit code: 101', src/bootstrap/compile.rs:869:8 stack backtrace: 0: std::sys::imp::backtrace::tracing::imp::unwind_backtrace at /checkout/src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49 1: std::sys_common::backtrace::_print at /checkout/src/libstd/sys_common/backtrace.rs:71 2: std::panicking::default_hook::{{closure}} at /checkout/src/libstd/sys_common/backtrace.rs:60 at /checkout/src/libstd/panicking.rs:380 3: std::panicking::default_hook at /checkout/src/libstd/panicking.rs:396 4: std::panicking::rust_panic_with_hook at /checkout/src/libstd/panicking.rs:611 5: std::panicking::begin_panic_new at /checkout/src/libstd/panicking.rs:553 6: std::panicking::begin_panic_fmt at /checkout/src/libstd/panicking.rs:521 7: bootstrap::compile::run_cargo 8: <bootstrap::compile::Std as bootstrap::builder::Step>::run 9: bootstrap::builder::Builder::ensure 10: <bootstrap::compile::Test as bootstrap::builder::Step>::run 11: bootstrap::builder::Builder::ensure 12: <bootstrap::compile::Rustc as bootstrap::builder::Step>::run 13: bootstrap::builder::Builder::ensure 14: <bootstrap::compile::Assemble as bootstrap::builder::Step>::run 15: bootstrap::builder::Builder::ensure 16: bootstrap::builder::Builder::compiler 17: <bootstrap::compile::Std as bootstrap::builder::Step>::make_run 18: bootstrap::builder::StepDescription::maybe_run 19: bootstrap::builder::StepDescription::run 20: bootstrap::builder::Builder::run 21: bootstrap::Build::build 22: bootstrap::main 23: __rust_maybe_catch_panic at /checkout/src/libpanic_unwind/lib.rs:98 24: std::rt::lang_start at /checkout/src/libstd/panicking.rs:458 at /checkout/src/libstd/panic.rs:361 at /checkout/src/libstd/rt.rs:59 25: main 26: __libc_start_main 27: _start failed to run: /home/dvc/repos/riscv-rust/rust/build/bootstrap/debug/bootstrap buildThe text was updated successfully, but these errors were encountered: