Internal Compiler Error: unexpected panic

[shamil-gadelshin]

Code

Tried to build this project:

https://github.com/smartcontractkit/chainlink-polkadot

Using this video:

https://www.youtube.com/watch?v=0rZghy0TIOQ

The exact package that breaks the compiler:

Compiling sp-arithmetic v2.0.0 (https://github.com/paritytech/substrate.git?rev=3e651110aa06aa835790df63410a29676243fc54#3e651110)

Meta

rustc --version --verbose:

rustc 1.46.0-nightly (346aec9b0 2020-07-11)
binary: rustc
commit-hash: 346aec9b02f3c74f3fce97fd6bda24709d220e49
commit-date: 2020-07-11
host: x86_64-apple-darwin
release: 1.46.0-nightly
LLVM version: 10.0

Error output

error: internal compiler error: unexpected panic
thread 'rustc' panicked at 'if we got here, it must be const', src/librustc_mir/transform/const_prop.rs:1010:34
stack backtrace:

Backtrace

shamixs-MacBook-Pro:chainlink-polkadot shamix$ RUST_BACKTRACE=1 make run-chain
cd substrate-node-example; cargo run --release -- --dev
   Compiling node-runtime v2.0.0 (/Users/shamix/rust/chainlink-polkadot/substrate-node-example/runtime)
   Compiling ring v0.16.15
   Compiling snow v0.6.2
   Compiling schnorrkel v0.8.5
   Compiling x25519-dalek v0.5.2
   Compiling sp-arithmetic v2.0.0 (https://github.com/paritytech/substrate.git?rev=3e651110aa06aa835790df63410a29676243fc54#3e651110)
   Compiling fork-tree v2.0.0 (https://github.com/paritytech/substrate.git?rev=3e651110aa06aa835790df63410a29676243fc54#3e651110)
   Compiling finality-grandpa v0.10.3
   Compiling primitive-types v0.6.2
   Compiling librocksdb-sys v6.7.4
thread 'rustc' panicked at 'if we got here, it must be const', src/librustc_mir/transform/const_prop.rs:1010:34
stack backtrace:
   Compiling rocksdb v0.13.0
   0: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
   1: core::fmt::write
   2: std::io::Write::write_fmt
   3: std::panicking::default_hook::{{closure}}
   4: std::panicking::default_hook
   5: rustc_driver::report_ice
   6: std::panicking::rust_panic_with_hook
   7: rust_begin_unwind
   8: core::panicking::panic_fmt
   9: core::option::expect_failed
  10: <rustc_mir::transform::const_prop::ConstPropagator as rustc_middle::mir::visit::MutVisitor>::visit_terminator::{{closure}}
  11: <rustc_mir::transform::const_prop::ConstPropagator as rustc_middle::mir::visit::MutVisitor>::visit_terminator
  12: <rustc_mir::transform::const_prop::ConstPropagator as rustc_middle::mir::visit::MutVisitor>::visit_body
  13: <rustc_mir::transform::const_prop::ConstProp as rustc_mir::transform::MirPass>::run_pass
  14: rustc_mir::transform::run_passes
  15: rustc_mir::transform::run_optimization_passes
  16: rustc_mir::transform::optimized_mir
  17: rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::optimized_mir>::compute
  18: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl
  19: rustc_data_structures::stack::ensure_sufficient_stack
  20: rustc_query_system::query::plumbing::get_query_impl
  21: rustc_middle::ty::<impl rustc_middle::ty::context::TyCtxt>::instance_mir
  22: rustc_mir::monomorphize::collector::collect_neighbours
  23: rustc_mir::monomorphize::collector::collect_items_rec
  24: rustc_session::utils::<impl rustc_session::session::Session>::time
  25: rustc_mir::monomorphize::collector::collect_crate_mono_items
  26: rustc_mir::monomorphize::partitioning::collect_and_partition_mono_items
  27: rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::collect_and_partition_mono_items>::compute
  28: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl
  29: rustc_query_system::query::plumbing::get_query_impl
  30: rustc_codegen_ssa::base::codegen_crate
  31: <rustc_codegen_llvm::LlvmCodegenBackend as rustc_codegen_ssa::traits::backend::CodegenBackend>::codegen_crate
  32: rustc_session::utils::<impl rustc_session::session::Session>::time
  33: rustc_interface::passes::start_codegen
  34: rustc_middle::ty::context::tls::enter_global
  35: rustc_interface::queries::Queries::ongoing_codegen
  36: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter
  37: rustc_span::with_source_map
  38: rustc_interface::interface::create_compiler_and_run
  39: scoped_tls::ScopedKey<T>::set
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: internal compiler error: unexpected panic

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 1.46.0-nightly (346aec9b0 2020-07-11) running on x86_64-apple-darwin

note: compiler flags: -C opt-level=3 -C embed-bitcode=no --crate-type lib

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [optimized_mir] optimizing MIR for `<fixed64::Fixed64 as std::ops::Div>::div`
#1 [collect_and_partition_mono_items] collect_and_partition_mono_items
end of query stack
error: could not compile `sp-arithmetic`.

To learn more, run the command again with --verbose.
warning: build failed, waiting for other jobs to finish...
error: build failed

[jonas-schievink]

Duplicate of #73993, please update your Rust version.