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unstable fingerprints for optimized_mir #80336

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#80654
Closed
unstable fingerprints for optimized_mir#80336
#80654
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A-incr-compArea: Incremental compilationA-query-systemArea: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html)C-bugCategory: This is a bug.E-needs-mcveCall for participation: This issue has a repro, but needs a Minimal Complete and Verifiable ExampleP-highHigh priorityT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.
@KalitaAlexey

Description

@KalitaAlexey
KalitaAlexey
opened on Dec 23, 2020

Code

git clone -b v2.0.0 --depth 1 https://github.com/substrate-developer-hub/substrate-node-template

Steps

rustup target add wasm32-unknown-unknown --toolchain nightly-2020-10-05
export RUSTFLAGS="-Z incremental-info=yes -Z incremental-verify-ich=yes"
cargo build
Add a comment (modify a file with no actual impact)
cargo build

Meta

rustc --version --verbose:

rustc 1.49.0-nightly (beb5ae474 2020-10-04)
binary: rustc
commit-hash: beb5ae474d2835962ebdf7416bd1c9ad864fe101
commit-date: 2020-10-04
host: x86_64-apple-darwin
release: 1.49.0-nightly
LLVM version: 11.0

Error output

thread 'rustc' panicked at 'found unstable fingerprints for optimized_mir(node_template_runtime[3b47]::_::{impl#0}::decode)', /rustc/beb5ae474d2835962ebdf7416bd1c9ad864fe101/compiler/rustc_query_system/src/query/plumbing.rs:555:5
Backtrace 

stack backtrace:
   0: _rust_begin_unwind
   1: std::panicking::begin_panic_fmt
   2: rustc_query_system::query::plumbing::incremental_verify_ich
   3: rustc_query_system::query::plumbing::load_from_disk_and_cache_in_memory
   4: rustc_data_structures::stack::ensure_sufficient_stack
   5: rustc_query_system::query::plumbing::get_query_impl
   6: rustc_metadata::rmeta::encoder::EncodeContext::encode_optimized_mir
   7: <rustc_metadata::rmeta::encoder::EncodeContext as rustc_hir::intravisit::Visitor>::visit_item
   8: rustc_hir::hir::Crate::visit_all_item_likes
   9: rustc_metadata::rmeta::encoder::EncodeContext::encode_crate_root
  10: rustc_metadata::rmeta::encoder::encode_metadata_impl
  11: rustc_data_structures::sync::join
  12: rustc_metadata::rmeta::decoder::cstore_impl::<impl rustc_middle::middle::cstore::CrateStore for rustc_metadata::creader::CStore>::encode_metadata
  13: rustc_middle::ty::context::TyCtxt::encode_metadata
  14: rustc_interface::passes::QueryContext::enter
  15: rustc_interface::queries::Queries::ongoing_codegen
  16: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter
  17: rustc_span::with_source_map
  18: rustc_interface::interface::create_compiler_and_run
  19: scoped_tls::ScopedKey<T>::set

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    A-incr-compArea: Incremental compilationA-query-systemArea: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html)C-bugCategory: This is a bug.E-needs-mcveCall for participation: This issue has a repro, but needs a Minimal Complete and Verifiable ExampleP-highHigh priorityT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.

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