Closed
Description
When I run cargo doc in one of my crates (that I unfortunately can't show you) the compiler panics
at a seemingly random dependency, i.e. it changes from run to run.
I use rust stable:
rustc 1.30.0 (da5f414c2 2018-10-24)
binary: rustc
commit-hash: da5f414c2c0bfe5198934493f04c676e2b23ff2e
commit-date: 2018-10-24
host: x86_64-unknown-linux-gnu
release: 1.30.0
LLVM version: 8.0
This is the full output of "cargo doc":
$ RUST_BACKTRACE=1 cargo doc 101 ↵
Documenting bytes v0.4.10
Checking uuid v0.6.5
Checking rand v0.3.22
Documenting futures-cpupool v0.1.8
Documenting uuid v0.6.5
Documenting rand v0.3.22
Documenting resolv-conf v0.6.1
Documenting msdos_time v0.1.6
Documenting mio v0.6.15
Documenting num-traits v0.2.6
Documenting typenum v1.10.0
Checking tokio-timer v0.2.6
Checking tokio-current-thread v0.1.3
error: internal compiler error: librustc/traits/structural_impls.rs:178: impossible case reached
thread '<unnamed>' panicked at 'Box<Any>', librustc_errors/lib.rs:587:9
Documenting tokio-timer v0.2.6
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
at libstd/sys_common/backtrace.rs:59
2: std::panicking::default_hook::{{closure}}
at libstd/panicking.rs:211
3: std::panicking::default_hook
at libstd/panicking.rs:227
4: std::panicking::rust_panic_with_hook
at libstd/panicking.rs:477
5: std::panicking::begin_panic
6: rustc_errors::Handler::bug
7: rustc::util::bug::opt_span_bug_fmt::{{closure}}
8: rustc::ty::context::tls::with_opt::{{closure}}
9: rustc::ty::context::tls::with_context_opt
10: rustc::ty::context::tls::with_opt
11: rustc::util::bug::opt_span_bug_fmt
12: rustc::util::bug::bug_fmt
13: rustc::traits::structural_impls::<impl rustc::ty::context::Lift<'tcx> for rustc::traits::SelectionError<'a>>::lift_to_tcx
14: rustc::ty::context::TyCtxt::lift_to_global
15: rustc::traits::select::SelectionContext::candidate_from_obligation
16: rustc::traits::select::SelectionContext::evaluate_stack
17: rustc::dep_graph::graph::DepGraph::with_anon_task
18: rustc::traits::select::SelectionContext::evaluate_predicate_recursively
19: rustc::infer::InferCtxt::probe
20: <&'a mut I as core::iter::iterator::Iterator>::next
21: <alloc::vec::Vec<T> as alloc::vec::SpecExtend<T, I>>::from_iter
22: rustc::traits::select::SelectionContext::candidate_from_obligation_no_cache
23: rustc::dep_graph::graph::DepGraph::with_anon_task
24: rustc::traits::select::SelectionContext::candidate_from_obligation
25: rustc::traits::select::SelectionContext::evaluate_stack
26: rustc::dep_graph::graph::DepGraph::with_anon_task
27: rustc::traits::select::SelectionContext::evaluate_predicate_recursively
28: rustc::infer::InferCtxt::probe
29: <&'a mut I as core::iter::iterator::Iterator>::next
30: <alloc::vec::Vec<T> as alloc::vec::SpecExtend<T, I>>::from_iter
31: rustc::traits::select::SelectionContext::candidate_from_obligation_no_cache
32: rustc::dep_graph::graph::DepGraph::with_anon_task
33: rustc::traits::select::SelectionContext::candidate_from_obligation
34: rustc::traits::select::SelectionContext::evaluate_stack
35: rustc::dep_graph::graph::DepGraph::with_anon_task
36: rustc::traits::select::SelectionContext::evaluate_predicate_recursively
37: rustc::infer::InferCtxt::probe
38: <&'a mut I as core::iter::iterator::Iterator>::next
39: <alloc::vec::Vec<T> as alloc::vec::SpecExtend<T, I>>::from_iter
40: rustc::traits::select::SelectionContext::candidate_from_obligation_no_cache
41: rustc::dep_graph::graph::DepGraph::with_anon_task
42: rustc::traits::select::SelectionContext::candidate_from_obligation
43: rustc::traits::select::SelectionContext::evaluate_stack
44: rustc::dep_graph::graph::DepGraph::with_anon_task
45: rustc::traits::select::SelectionContext::evaluate_predicate_recursively
46: rustc::infer::InferCtxt::probe
47: <&'a mut I as core::iter::iterator::Iterator>::next
48: <alloc::vec::Vec<T> as alloc::vec::SpecExtend<T, I>>::from_iter
49: rustc::traits::select::SelectionContext::candidate_from_obligation_no_cache
50: rustc::dep_graph::graph::DepGraph::with_anon_task
51: rustc::traits::select::SelectionContext::candidate_from_obligation
52: rustc::traits::select::SelectionContext::evaluate_stack
53: rustc::dep_graph::graph::DepGraph::with_anon_task
54: rustc::traits::select::SelectionContext::evaluate_predicate_recursively
55: rustc::infer::InferCtxt::probe
56: <&'a mut I as core::iter::iterator::Iterator>::next
57: <alloc::vec::Vec<T> as alloc::vec::SpecExtend<T, I>>::from_iter
58: rustc::traits::select::SelectionContext::candidate_from_obligation_no_cache
59: rustc::dep_graph::graph::DepGraph::with_anon_task
60: rustc::traits::select::SelectionContext::candidate_from_obligation
61: rustc::traits::select::SelectionContext::evaluate_stack
62: rustc::dep_graph::graph::DepGraph::with_anon_task
63: rustc::traits::select::SelectionContext::evaluate_predicate_recursively
64: rustc::infer::InferCtxt::probe
65: <&'a mut I as core::iter::iterator::Iterator>::next
66: <alloc::vec::Vec<T> as alloc::vec::SpecExtend<T, I>>::from_iter
67: rustc::traits::select::SelectionContext::candidate_from_obligation_no_cache
68: rustc::dep_graph::graph::DepGraph::with_anon_task
69: rustc::traits::select::SelectionContext::candidate_from_obligation
70: rustc::traits::select::SelectionContext::evaluate_stack
71: rustc::dep_graph::graph::DepGraph::with_anon_task
72: rustc::traits::select::SelectionContext::evaluate_predicate_recursively
73: rustc::infer::InferCtxt::probe
74: <&'a mut I as core::iter::iterator::Iterator>::next
75: <alloc::vec::Vec<T> as alloc::vec::SpecExtend<T, I>>::from_iter
76: rustc::traits::select::SelectionContext::candidate_from_obligation_no_cache
77: rustc::dep_graph::graph::DepGraph::with_anon_task
78: rustc::traits::select::SelectionContext::candidate_from_obligation
79: rustc::traits::select::SelectionContext::evaluate_stack
80: rustc::dep_graph::graph::DepGraph::with_anon_task
81: rustc::traits::select::SelectionContext::evaluate_predicate_recursively
82: rustc::infer::InferCtxt::probe
83: <&'a mut I as core::iter::iterator::Iterator>::next
84: <alloc::vec::Vec<T> as alloc::vec::SpecExtend<T, I>>::from_iter
85: rustc::traits::select::SelectionContext::candidate_from_obligation_no_cache
86: rustc::dep_graph::graph::DepGraph::with_anon_task
87: rustc::traits::select::SelectionContext::candidate_from_obligation
88: rustc::traits::select::SelectionContext::evaluate_stack
89: rustc::dep_graph::graph::DepGraph::with_anon_task
90: rustc::traits::select::SelectionContext::evaluate_predicate_recursively
91: rustc::infer::InferCtxt::probe
92: <&'a mut I as core::iter::iterator::Iterator>::next
93: <alloc::vec::Vec<T> as alloc::vec::SpecExtend<T, I>>::from_iter
94: rustc::traits::select::SelectionContext::candidate_from_obligation_no_cache
95: rustc::dep_graph::graph::DepGraph::with_anon_task
96: rustc::traits::select::SelectionContext::candidate_from_obligation
97: rustc::traits::select::SelectionContext::evaluate_stack
98: rustc::dep_graph::graph::DepGraph::with_anon_task
99: rustc::traits::select::SelectionContext::evaluate_predicate_recursively
Documenting tokio-current-thread v0.1.3
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 1.30.0 (da5f414c2 2018-10-24) running on x86_64-unknown-linux-gnu
error: Could not document `typenum`.
Caused by:
process didn't exit successfully: `rustdoc --crate-name typenum /home/nicklas/.cargo/registry/src/github.com-1ecc6299db9ec823/typenum-1.10.0/src/lib.rs --cap-lints allow --color always -o /home/nicklas/Documents/work/CMP/code/cmp_dem/target/doc -L dependency=/home/nicklas/Documents/work/CMP/code/cmp_dem/target/debug/deps` (exit code: 1)
warning: build failed, waiting for other jobs to finish...
error: build failed