Closed
Description
This code reproduce it.
https://play.rust-lang.org/?gist=e6f3aa15d3399c3300dd38b0a627cbf4&version=stable
I tried this code:
#[derive(Clone)]
struct Node<T: ?Sized>(Box<T>);
impl<T: Clone + ?Sized> Clone for Node<[T]> {
fn clone(&self) -> Self {
Node(Box::clone(&self.0))
}
}
fn main() {}
Meta
rustc --version --verbose:
rustc 1.24.1 (d3ae9a9e0 2018-02-27)
binary: rustc
commit-hash: d3ae9a9e08edf12de0ed82af57ba2a56c26496ea
commit-date: 2018-02-27
host: x86_64-unknown-linux-gnu
release: 1.24.1
LLVM version: 4.0
Backtrace:
0: std::sys::unix::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:68
at /checkout/src/libstd/sys_common/backtrace.rs:57
2: std::panicking::default_hook::{{closure}}
at /checkout/src/libstd/panicking.rs:381
3: std::panicking::default_hook
at /checkout/src/libstd/panicking.rs:391
4: std::panicking::rust_panic_with_hook
at /checkout/src/libstd/panicking.rs:577
5: std::panicking::begin_panic
at /checkout/src/libstd/panicking.rs:538
6: std::panicking::begin_panic_fmt
at /checkout/src/libstd/panicking.rs:522
7: rust_begin_unwind
at /checkout/src/libstd/panicking.rs:498
8: core::panicking::panic_fmt
at /checkout/src/libcore/panicking.rs:71
9: core::panicking::panic
at /checkout/src/libcore/panicking.rs:51
10: <std::thread::local::LocalKey<T>>::with
11: rustc::ty::context::GlobalCtxt::enter_local
12: rustc::traits::specialize::specialization_graph::Graph::insert
13: rustc::traits::specialize::specialization_graph_provider
14: rustc::dep_graph::graph::DepGraph::with_task_impl
15: rustc_errors::Handler::track_diagnostics
16: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::cycle_check
17: rustc::ty::maps::<impl rustc::ty::maps::queries::specialization_graph_of<'tcx>>::force
18: rustc::ty::maps::<impl rustc::ty::maps::queries::specialization_graph_of<'tcx>>::try_get
19: rustc::ty::maps::TyCtxtAt::specialization_graph_of
20: rustc::ty::maps::<impl rustc::ty::context::TyCtxt<'a, 'tcx, 'lcx>>::specialization_graph_of
21: rustc_typeck::coherence::overlap::check_impl
22: rustc_typeck::coherence::coherent_trait
23: rustc::dep_graph::graph::DepGraph::with_task_impl
24: rustc_errors::Handler::track_diagnostics
25: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::cycle_check
26: rustc::ty::maps::<impl rustc::ty::maps::queries::coherent_trait<'tcx>>::force
27: rustc::ty::maps::<impl rustc::ty::maps::queries::coherent_trait<'tcx>>::try_get
28: rustc::ty::maps::TyCtxtAt::coherent_trait
29: rustc::ty::maps::<impl rustc::ty::maps::queries::coherent_trait<'tcx>>::ensure
30: rustc_typeck::coherence::check_coherence
31: rustc_typeck::check_crate
32: <std::thread::local::LocalKey<T>>::with
33: <std::thread::local::LocalKey<T>>::with
34: rustc::ty::context::TyCtxt::create_and_enter
35: rustc_driver::driver::compile_input
36: rustc_driver::run_compiler
And an angry imp there! 👿