Closed
Description
The command: cargo build
The version: rustc 1.26.0-nightly (322d7f7 2018-02-25)
The error:
Compiling cgmath v0.16.0
Compiling rusqlite v0.13.0
Compiling target_build_utils v0.3.1
thread 'rustc' panicked at 'assertion failed: `(left != right)`
left: `ParamEnv(Binder(ProjectionPredicate(ProjectionTy { substs: Slice([S, S]), item_def_id: DefId(2/0:885 ~ core[ffe9]::ops[0]::arith[0]::Add[0]::Output[0]) }, S)))`,
right: `ParamEnv(Binder(ProjectionPredicate(ProjectionTy { substs: Slice([S, S]), item_def_id: DefId(2/0:885 ~ core[ffe9]::ops[0]::arith[0]::Add[0]::Output[0]) }, S)))`', librustc/traits/project.rs:146:17
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
stack backtrace:
0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
1: std::sys_common::backtrace::_print
at libstd/sys_common/backtrace.rs:71
2: std::panicking::default_hook::{{closure}}
at libstd/sys_common/backtrace.rs:59
at libstd/panicking.rs:206
3: std::panicking::default_hook
at libstd/panicking.rs:222
4: core::ops::function::Fn::call
5: std::panicking::rust_panic_with_hook
at libstd/panicking.rs:401
6: std::panicking::begin_panic_fmt
at libstd/panicking.rs:347
7: rustc::traits::project::ProjectionTyCandidateSet::push_candidate
8: rustc::traits::project::opt_normalize_projection_type
9: rustc::traits::project::poly_project_and_unify_type::{{closure}}
10: rustc::traits::project::poly_project_and_unify_type
11: <rustc::traits::fulfill::FulfillProcessor<'a, 'b, 'gcx, 'tcx> as rustc_data_structures::obligation_forest::ObligationProcessor>::process_obligation
12: rustc::traits::fulfill::FulfillmentContext::select
13: rustc::traits::fulfill::FulfillmentContext::select_all_or_error
14: rustc_typeck::check::compare_method::compare_predicate_entailment
15: rustc_typeck::check::check_impl_items_against_trait
16: rustc_typeck::check::check_item_type
17: rustc_typeck::check_crate::{{closure}}
18: rustc_typeck::check_crate
19: rustc::ty::context::TyCtxt::create_and_enter
20: rustc_driver::driver::compile_input
21: rustc_driver::run_compiler
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 1.26.0-nightly (322d7f7b9 2018-02-25) running on x86_64-unknown-linux-gnu
error: Could not compile `cgmath`.
warning: build failed, waiting for other jobs to finish...
error: build failed