Closed
Description
Input:
fn main() {
Vec::<[(); 1 + for x in 0..1 {}]>::new();
}Output:
$ rustc -Z external-macro-backtrace -
error[E0277]: cannot add `()` to `{integer}`
--> <anon>:2:18
|
2 | Vec::<[(); 1 + for x in 0..1 {}]>::new();
| ^ no implementation for `{integer} + ()`
|
= help: the trait `std::ops::Add<()>` is not implemented for `{integer}`
error: internal compiler error: librustc_mir/hair/pattern/mod.rs:514: tuple struct pattern not applied to an ADT
--> <anon>:2:24
|
2 | Vec::<[(); 1 + for x in 0..1 {}]>::new();
| ^
thread 'main' panicked at 'Box<Any>', librustc_errors/lib.rs:499:9
stack backtrace:
...
13: rustc::session::span_bug_fmt
at /home/vegard/rust/src/librustc/session/mod.rs:1267
14: rustc_mir::hair::pattern::PatternContext::lower_pattern
at librustc_mir/hair/pattern/mod.rs:514
at librustc_mir/hair/pattern/mod.rs:344
15: rustc_mir::hair::pattern::check_match::MatchVisitor::check_match::{{closure}}
at librustc_mir/hair/pattern/check_match.rs:202
at /home/vegard/rust/src/libcore/ops/function.rs:271
at /home/vegard/rust/src/libcore/option.rs:404
at /home/vegard/rust/src/libcore/iter/mod.rs:1347
at /home/vegard/rust/src/liballoc/vec.rs:1883
at /home/vegard/rust/src/liballoc/vec.rs:1866
at /home/vegard/rust/src/liballoc/vec.rs:1752
at /home/vegard/rust/src/libcore/iter/iterator.rs:1375
at librustc_mir/hair/pattern/check_match.rs:198
at /home/vegard/rust/src/libcore/ops/function.rs:271
at /home/vegard/rust/src/libcore/option.rs:404
at /home/vegard/rust/src/libcore/iter/mod.rs:1347
at /home/vegard/rust/src/liballoc/vec.rs:1883
at /home/vegard/rust/src/liballoc/vec.rs:1866
at /home/vegard/rust/src/liballoc/vec.rs:1752
at /home/vegard/rust/src/libcore/iter/iterator.rs:1375
at librustc_mir/hair/pattern/check_match.rs:197
...
Complete output
$ rustc -Z external-macro-backtrace -
error[E0277]: cannot add `()` to `{integer}`
--> <anon>:2:18
|
2 | Vec::<[(); 1 + for x in 0..1 {}]>::new();
| ^ no implementation for `{integer} + ()`
|
= help: the trait `std::ops::Add<()>` is not implemented for `{integer}`
error: internal compiler error: librustc_mir/hair/pattern/mod.rs:514: tuple struct pattern not applied to an ADT
--> <anon>:2:24
|
2 | Vec::<[(); 1 + for x in 0..1 {}]>::new();
| ^
thread 'main' panicked at 'Box<Any>', librustc_errors/lib.rs:499:9
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:211
3: std::panicking::default_hook
at libstd/panicking.rs:227
4: rustc::util::common::panic_hook
at librustc/util/common.rs:54
5: std::panicking::rust_panic_with_hook
at libstd/panicking.rs:467
6: std::panicking::begin_panic
at /home/vegard/rust/src/libstd/panicking.rs:397
7: rustc_errors::Handler::span_bug
at /home/vegard/rust/src/<panic macros>:3
8: rustc::session::opt_span_bug_fmt::{{closure}}
at /home/vegard/rust/src/librustc/session/mod.rs:1279
9: rustc::ty::context::tls::with_opt::{{closure}}
at /home/vegard/rust/src/librustc/ty/context.rs:1943
10: rustc::ty::context::tls::with_context_opt
at /home/vegard/rust/src/librustc/ty/context.rs:1880
11: rustc::ty::context::tls::with_opt
at /home/vegard/rust/src/librustc/ty/context.rs:1943
12: rustc::session::opt_span_bug_fmt
at /home/vegard/rust/src/librustc/session/mod.rs:1276
13: rustc::session::span_bug_fmt
at /home/vegard/rust/src/librustc/session/mod.rs:1267
14: rustc_mir::hair::pattern::PatternContext::lower_pattern
at librustc_mir/hair/pattern/mod.rs:514
at librustc_mir/hair/pattern/mod.rs:344
15: rustc_mir::hair::pattern::check_match::MatchVisitor::check_match::{{closure}}
at librustc_mir/hair/pattern/check_match.rs:202
at /home/vegard/rust/src/libcore/ops/function.rs:271
at /home/vegard/rust/src/libcore/option.rs:404
at /home/vegard/rust/src/libcore/iter/mod.rs:1347
at /home/vegard/rust/src/liballoc/vec.rs:1883
at /home/vegard/rust/src/liballoc/vec.rs:1866
at /home/vegard/rust/src/liballoc/vec.rs:1752
at /home/vegard/rust/src/libcore/iter/iterator.rs:1375
at librustc_mir/hair/pattern/check_match.rs:198
at /home/vegard/rust/src/libcore/ops/function.rs:271
at /home/vegard/rust/src/libcore/option.rs:404
at /home/vegard/rust/src/libcore/iter/mod.rs:1347
at /home/vegard/rust/src/liballoc/vec.rs:1883
at /home/vegard/rust/src/liballoc/vec.rs:1866
at /home/vegard/rust/src/liballoc/vec.rs:1752
at /home/vegard/rust/src/libcore/iter/iterator.rs:1375
at librustc_mir/hair/pattern/check_match.rs:197
16: <rustc_mir::hair::pattern::check_match::MatchVisitor<'a, 'tcx> as rustc::hir::intravisit::Visitor<'tcx>>::visit_expr
at librustc_mir/hair/pattern/_match.rs:166
at librustc_mir/hair/pattern/check_match.rs:194
at librustc_mir/hair/pattern/check_match.rs:102
17: <rustc_mir::hair::pattern::check_match::MatchVisitor<'a, 'tcx> as rustc::hir::intravisit::Visitor<'tcx>>::visit_expr
at /home/vegard/rust/src/librustc/hir/intravisit.rs:935
at /home/vegard/rust/src/librustc/hir/intravisit.rs:264
at /home/vegard/rust/src/<walk_list macros>:2
at /home/vegard/rust/src/librustc/hir/intravisit.rs:261
at /home/vegard/rust/src/librustc/hir/intravisit.rs:1005
at librustc_mir/hair/pattern/check_match.rs:98
18: <rustc_mir::hair::pattern::check_match::MatchVisitor<'a, 'tcx> as rustc::hir::intravisit::Visitor<'tcx>>::visit_expr
at /home/vegard/rust/src/librustc/hir/intravisit.rs:267
at /home/vegard/rust/src/<walk_list macros>:2
at librustc_mir/hair/pattern/check_match.rs:98
19: <rustc_mir::hair::pattern::check_match::MatchVisitor<'a, 'tcx> as rustc::hir::intravisit::Visitor<'tcx>>::visit_local
at /home/vegard/rust/src/<walk_list macros>:2
at librustc_mir/hair/pattern/check_match.rs:109
20: <rustc_mir::hair::pattern::check_match::MatchVisitor<'a, 'tcx> as rustc::hir::intravisit::Visitor<'tcx>>::visit_expr
at /home/vegard/rust/src/librustc/hir/intravisit.rs:942
at /home/vegard/rust/src/librustc/hir/intravisit.rs:273
at /home/vegard/rust/src/librustc/hir/intravisit.rs:930
at /home/vegard/rust/src/librustc/hir/intravisit.rs:264
at /home/vegard/rust/src/<walk_list macros>:2
at /home/vegard/rust/src/librustc/hir/intravisit.rs:261
at /home/vegard/rust/src/librustc/hir/intravisit.rs:1018
at librustc_mir/hair/pattern/check_match.rs:98
21: <rustc_mir::hair::pattern::check_match::MatchVisitor<'a, 'tcx> as rustc::hir::intravisit::Visitor<'tcx>>::visit_expr
at /home/vegard/rust/src/libsyntax/ptr.rs:0
22: <rustc_mir::hair::pattern::check_match::MatchVisitor<'a, 'tcx> as rustc::hir::intravisit::Visitor<'tcx>>::visit_body
at /home/vegard/rust/src/librustc/hir/intravisit.rs:400
at librustc_mir/hair/pattern/check_match.rs:121
23: rustc_mir::hair::pattern::check_match::check_match
at librustc_mir/hair/pattern/check_match.rs:70
at /home/vegard/rust/src/librustc/session/mod.rs:318
at librustc_mir/hair/pattern/check_match.rs:69
24: rustc::dep_graph::graph::DepGraph::with_task_impl
at librustc/ty/maps/plumbing.rs:723
at librustc/dep_graph/graph.rs:343
25: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
at librustc/dep_graph/graph.rs:209
at librustc/ty/maps/plumbing.rs:530
at librustc/ty/maps/plumbing.rs:200
at librustc/ty/context.rs:1844
at librustc/ty/context.rs:1787
at librustc/ty/context.rs:1843
at librustc/ty/maps/plumbing.rs:199
at librustc/ty/context.rs:1905
at librustc/ty/context.rs:1889
at librustc/ty/context.rs:1880
at librustc/ty/context.rs:1889
at librustc/ty/context.rs:1900
at librustc/ty/maps/plumbing.rs:189
at librustc/ty/maps/plumbing.rs:523
26: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
at librustc/ty/maps/plumbing.rs:372
at librustc/ty/maps/plumbing.rs:599
at librustc/ty/maps/plumbing.rs:606
27: rustc_mir::interpret::const_eval::const_eval_provider
at librustc_mir/interpret/const_eval.rs:451
28: rustc::dep_graph::graph::DepGraph::with_task_impl
at librustc/ty/maps/plumbing.rs:723
at librustc/dep_graph/graph.rs:343
29: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
at librustc/dep_graph/graph.rs:209
at librustc/ty/maps/plumbing.rs:530
at librustc/ty/maps/plumbing.rs:200
at librustc/ty/context.rs:1844
at librustc/ty/context.rs:1787
at librustc/ty/context.rs:1843
at librustc/ty/maps/plumbing.rs:199
at librustc/ty/context.rs:1905
at librustc/ty/context.rs:1889
at librustc/ty/context.rs:1880
at librustc/ty/context.rs:1889
at librustc/ty/context.rs:1900
at librustc/ty/maps/plumbing.rs:189
at librustc/ty/maps/plumbing.rs:523
30: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::try_get_query
at librustc/ty/maps/plumbing.rs:372
at librustc/ty/maps/plumbing.rs:599
31: <rustc::traits::project::AssociatedTypeNormalizer<'a, 'b, 'gcx, 'tcx> as rustc::ty::fold::TypeFolder<'gcx, 'tcx>>::fold_const
at librustc/ty/maps/plumbing.rs:606
at librustc/ty/maps/plumbing.rs:776
at librustc/ty/maps/plumbing.rs:769
at librustc/traits/project.rs:436
32: <rustc::traits::project::AssociatedTypeNormalizer<'a, 'b, 'gcx, 'tcx> as rustc::ty::fold::TypeFolder<'gcx, 'tcx>>::fold_ty
at librustc/ty/structural_impls.rs:1176
at librustc/ty/structural_impls.rs:857
at librustc/traits/project.rs:346
33: rustc_typeck::check::Inherited::normalize_associated_types_in
at /home/vegard/rust/src/librustc/ty/structural_impls.rs:890
at /home/vegard/rust/src/librustc/traits/project.rs:324
at /home/vegard/rust/src/librustc/traits/project.rs:283
at /home/vegard/rust/src/librustc/traits/project.rs:267
at /home/vegard/rust/src/librustc/infer/mod.rs:1358
at librustc_typeck/check/mod.rs:677
34: <rustc_typeck::check::FnCtxt<'a, 'gcx, 'tcx> as rustc_typeck::astconv::AstConv<'gcx, 'tcx>>::normalize_ty
at librustc_typeck/check/mod.rs:2075
at librustc_typeck/check/mod.rs:1776
35: <rustc_typeck::astconv::AstConv<'gcx, 'tcx> + 'o>::ast_ty_to_ty
at librustc_typeck/astconv.rs:1095
36: <rustc_typeck::astconv::AstConv<'gcx, 'tcx> + 'o>::create_substs_for_ast_path::{{closure}}
at librustc_typeck/astconv.rs:261
37: rustc::ty::subst::<impl rustc::ty::Slice<rustc::ty::subst::Kind<'tcx>>>::fill_item
at /home/vegard/rust/src/librustc/ty/subst.rs:260
at /home/vegard/rust/src/librustc/ty/subst.rs:235
38: <rustc_typeck::astconv::AstConv<'gcx, 'tcx> + 'o>::create_substs_for_ast_path
at /home/vegard/rust/src/librustc/ty/subst.rs:203
at librustc_typeck/astconv.rs:243
39: <rustc_typeck::astconv::AstConv<'gcx, 'tcx> + 'o>::ast_path_substs_for_ty
at librustc_typeck/astconv.rs:176
at /home/vegard/rust/src/librustc/hir/mod.rs:366
at librustc_typeck/astconv.rs:175
40: <rustc_typeck::astconv::AstConv<'gcx, 'tcx> + 'o>::def_to_ty
at librustc_typeck/astconv.rs:555
at librustc_typeck/astconv.rs:964
41: <rustc_typeck::astconv::AstConv<'gcx, 'tcx> + 'o>::ast_ty_to_ty
at librustc_typeck/astconv.rs:1074
42: rustc_typeck::check::FnCtxt::resolve_ty_and_def_ufcs
at librustc_typeck/check/mod.rs:2119
at librustc_typeck/check/mod.rs:4183
43: rustc_typeck::check::FnCtxt::check_expr_kind
at librustc_typeck/check/mod.rs:3698
44: rustc_typeck::check::FnCtxt::check_expr_with_expectation_and_needs
at librustc_typeck/check/mod.rs:3530
45: rustc_typeck::check::FnCtxt::check_expr_kind
at librustc_typeck/check/mod.rs:2864
at librustc_typeck/check/mod.rs:2868
at librustc_typeck/check/callee.rs:51
at librustc_typeck/check/mod.rs:3916
46: rustc_typeck::check::FnCtxt::check_expr_with_expectation_and_needs
at librustc_typeck/check/mod.rs:3530
47: rustc_typeck::check::FnCtxt::check_block_with_expected::{{closure}}
at librustc_typeck/check/mod.rs:2864
at librustc_typeck/check/mod.rs:2868
at librustc_typeck/check/mod.rs:4296
at librustc_typeck/check/mod.rs:4361
48: rustc_typeck::check::FnCtxt::check_block_with_expected
at librustc_typeck/check/mod.rs:5070
at librustc_typeck/check/mod.rs:4359
49: rustc_typeck::check::FnCtxt::check_expr_kind
at librustc_typeck/check/mod.rs:3913
50: rustc_typeck::check::FnCtxt::check_expr_with_expectation_and_needs
at librustc_typeck/check/mod.rs:3530
51: rustc_typeck::check::FnCtxt::check_return_expr
at librustc_typeck/check/mod.rs:2864
at librustc_typeck/check/mod.rs:2858
at librustc_typeck/check/mod.rs:2996
52: rustc_typeck::check::check_fn
at librustc_typeck/check/mod.rs:1081
53: rustc_typeck::check::typeck_tables_of::{{closure}}
at librustc_typeck/check/mod.rs:871
54: rustc_typeck::check::typeck_tables_of
at librustc_typeck/check/mod.rs:617
at /home/vegard/rust/src/librustc/infer/mod.rs:453
at /home/vegard/rust/src/librustc/ty/context.rs:1578
at /home/vegard/rust/src/librustc/ty/context.rs:1844
at /home/vegard/rust/src/librustc/ty/context.rs:1787
at /home/vegard/rust/src/librustc/ty/context.rs:1843
at /home/vegard/rust/src/librustc/ty/context.rs:1577
at /home/vegard/rust/src/librustc/ty/context.rs:1905
at /home/vegard/rust/src/librustc/ty/context.rs:1889
at /home/vegard/rust/src/librustc/ty/context.rs:1880
at /home/vegard/rust/src/librustc/ty/context.rs:1889
at /home/vegard/rust/src/librustc/ty/context.rs:1900
at /home/vegard/rust/src/librustc/ty/context.rs:1570
at /home/vegard/rust/src/librustc/infer/mod.rs:453
at librustc_typeck/check/mod.rs:617
at librustc_typeck/check/mod.rs:855
55: rustc::dep_graph::graph::DepGraph::with_task_impl
at librustc/ty/maps/plumbing.rs:723
at librustc/dep_graph/graph.rs:343
56: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
at librustc/dep_graph/graph.rs:209
at librustc/ty/maps/plumbing.rs:530
at librustc/ty/maps/plumbing.rs:200
at librustc/ty/context.rs:1844
at librustc/ty/context.rs:1787
at librustc/ty/context.rs:1843
at librustc/ty/maps/plumbing.rs:199
at librustc/ty/context.rs:1905
at librustc/ty/context.rs:1889
at librustc/ty/context.rs:1880
at librustc/ty/context.rs:1889
at librustc/ty/context.rs:1900
at librustc/ty/maps/plumbing.rs:189
at librustc/ty/maps/plumbing.rs:523
57: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
at librustc/ty/maps/plumbing.rs:372
at librustc/ty/maps/plumbing.rs:599
at librustc/ty/maps/plumbing.rs:606
58: rustc::ty::maps::<impl rustc::ty::maps::queries::typeck_tables_of<'tcx>>::ensure
at librustc/ty/maps/plumbing.rs:574
at librustc/ty/maps/plumbing.rs:740
59: rustc_typeck::check::typeck_item_bodies
at librustc_typeck/check/mod.rs:715
at /home/vegard/rust/src/librustc/session/mod.rs:318
at librustc_typeck/check/mod.rs:713
60: rustc::dep_graph::graph::DepGraph::with_task_impl
at librustc/ty/maps/plumbing.rs:723
at librustc/dep_graph/graph.rs:343
61: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
at librustc/dep_graph/graph.rs:209
at librustc/ty/maps/plumbing.rs:530
at librustc/ty/maps/plumbing.rs:200
at librustc/ty/context.rs:1844
at librustc/ty/context.rs:1787
at librustc/ty/context.rs:1843
at librustc/ty/maps/plumbing.rs:199
at librustc/ty/context.rs:1905
at librustc/ty/context.rs:1889
at librustc/ty/context.rs:1880
at librustc/ty/context.rs:1889
at librustc/ty/context.rs:1900
at librustc/ty/maps/plumbing.rs:189
at librustc/ty/maps/plumbing.rs:523
62: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
at librustc/ty/maps/plumbing.rs:372
at librustc/ty/maps/plumbing.rs:599
at librustc/ty/maps/plumbing.rs:606
63: rustc_typeck::check_crate
at librustc_typeck/check/mod.rs:706
at librustc_typeck/lib.rs:344
at /home/vegard/rust/src/librustc/util/common.rs:166
at /home/vegard/rust/src/librustc/util/common.rs:160
at librustc_typeck/lib.rs:344
64: rustc::ty::context::TyCtxt::create_and_enter
at librustc_driver/driver.rs:1121
at /home/vegard/rust/src/librustc/ty/context.rs:1867
at /home/vegard/rust/src/librustc/ty/context.rs:1844
at /home/vegard/rust/src/librustc/ty/context.rs:1787
at /home/vegard/rust/src/librustc/ty/context.rs:1843
at /home/vegard/rust/src/librustc/ty/context.rs:1866
at /home/vegard/rust/src/librustc/ty/context.rs:1833
at /home/vegard/rust/src/libstd/thread/local.rs:294
at /home/vegard/rust/src/libstd/thread/local.rs:248
at /home/vegard/rust/src/librustc/ty/context.rs:1825
at /home/vegard/rust/src/libstd/thread/local.rs:294
at /home/vegard/rust/src/libstd/thread/local.rs:248
at /home/vegard/rust/src/librustc/ty/context.rs:1817
at /home/vegard/rust/src/librustc/ty/context.rs:1855
at /home/vegard/rust/src/librustc/ty/context.rs:1299
65: rustc_driver::driver::compile_input
at librustc_driver/driver.rs:1095
at librustc_driver/driver.rs:231
66: rustc_driver::run_compiler
at librustc_driver/lib.rs:540
at librustc_driver/lib.rs:457
at /home/vegard/.cargo/registry/src/github.com-1ecc6299db9ec823/scoped-tls-0.1.1/src/lib.rs:155
at /home/vegard/rust/src/libsyntax/lib.rs:97
at /home/vegard/.cargo/registry/src/github.com-1ecc6299db9ec823/scoped-tls-0.1.1/src/lib.rs:155
at /home/vegard/rust/src/libsyntax/lib.rs:96
at librustc_driver/lib.rs:456
67: rustc_driver::monitor::{{closure}}
at librustc_driver/lib.rs:1684
at librustc_driver/lib.rs:174
at librustc_driver/lib.rs:1598
68: __rust_maybe_catch_panic
at libpanic_unwind/lib.rs:105
69: rustc_driver::run
at /home/vegard/rust/src/libstd/panicking.rs:289
at /home/vegard/rust/src/libstd/panic.rs:374
at librustc_driver/lib.rs:1530
at librustc_driver/lib.rs:1597
at librustc_driver/lib.rs:173
70: rustc_driver::main
at librustc_driver/lib.rs:1677
71: std::rt::lang_start::{{closure}}
at /home/vegard/rust/src/libstd/rt.rs:74
72: std::panicking::try::do_call
at libstd/rt.rs:59
at libstd/panicking.rs:310
73: __rust_maybe_catch_panic
at libpanic_unwind/lib.rs:105
74: std::rt::lang_start_internal
at libstd/panicking.rs:289
at libstd/panic.rs:374
at libstd/rt.rs:58
75: main
76: __libc_start_main
77: _start
query stack during panic:
#0 [check_match] processing `main::{{initializer}}`
#1 [const_eval] const-evaluating `main::{{initializer}}`
#2 [typeck_tables_of] processing `main`
#3 [typeck_item_bodies] type-checking all item bodies
end of query stack
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.
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 1.27.0-dev running on x86_64-unknown-linux-gnu
note: compiler flags: -Z external-macro-backtrace
I'm on commit c166b03.