[INFO] crate array-helpers 0.0.1 is already in cache [INFO] extracting crate array-helpers 0.0.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/array-helpers/0.0.1 [INFO] extracting crate array-helpers 0.0.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/array-helpers/0.0.1 [INFO] validating manifest of array-helpers-0.0.1 on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of array-helpers-0.0.1 on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing array-helpers-0.0.1 [INFO] finished frobbing array-helpers-0.0.1 [INFO] frobbed toml for array-helpers-0.0.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/array-helpers/0.0.1/Cargo.toml [INFO] started frobbing array-helpers-0.0.1 [INFO] finished frobbing array-helpers-0.0.1 [INFO] frobbed toml for array-helpers-0.0.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/array-helpers/0.0.1/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing array-helpers-0.0.1 against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/array-helpers/0.0.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 5549811dd03504ad9536dc5c9d3ef83864bd809dd50c1d315bef40c9b8003dc3 [INFO] running `"docker" "start" "-a" "5549811dd03504ad9536dc5c9d3ef83864bd809dd50c1d315bef40c9b8003dc3"` [INFO] [stderr] Compiling array-helpers v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: the feature `const_generics` is incomplete and may cause the compiler to crash [INFO] [stderr] --> src/lib.rs:3:12 [INFO] [stderr] | [INFO] [stderr] 3 | #![feature(const_generics)] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(const_fn)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:3:1 [INFO] [stderr] | [INFO] [stderr] 3 | #![feature(const_generics)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | #![feature(maybe_uninit_ref)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:5:1 [INFO] [stderr] | [INFO] [stderr] 5 | #![feature(trusted_len)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | #![feature(try_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: internal compiler error: src/librustc/ty/subst.rs:556: expected type for `impl FnMut(usize) -> T/#1` (impl FnMut(usize) -> T/1) but found Const(Const { ty: [type error], val: Scalar(Bits { size: 0, bits: 0 }) }) when substituting (root type=Some(impl FnMut(usize) -> T)) substs=[[type error], Const { ty: [type error], val: Scalar(Bits { size: 0, bits: 0 }) }, [type error]] [INFO] [stderr] [INFO] [stderr] thread 'rustc' panicked at 'Box', src/librustc_errors/lib.rs:572:9 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f69c2a27823 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55 [INFO] [stderr] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stderr] 1: 0x7f69c2a1f4cb - std::sys_common::backtrace::_print::h49a82ae9552e35c7 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stderr] 2: 0x7f69c2a23a56 - std::panicking::default_hook::{{closure}}::he20974adbefcc046 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] at src/libstd/panicking.rs:197 [INFO] [stderr] 3: 0x7f69c2a237e9 - std::panicking::default_hook::he4af6af4ac7fef7b [INFO] [stderr] at src/libstd/panicking.rs:211 [INFO] [stderr] 4: 0x7f69bffba680 - rustc::util::common::panic_hook::h47e7e1f47d58fee8 [INFO] [stderr] 5: 0x7f69c2a24248 - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f [INFO] [stderr] at src/libstd/panicking.rs:478 [INFO] [stderr] 6: 0x7f69bffd8a4c - std::panicking::begin_panic::h607713816230d65b [INFO] [stderr] 7: 0x7f69bfb9b27c - rustc_errors::Handler::span_bug::hb32ebafdf22a8d0d [INFO] [stderr] 8: 0x7f69bfc257cd - rustc::util::bug::opt_span_bug_fmt::{{closure}}::hc82f93aa21d0564b [INFO] [stderr] 9: 0x7f69bfc24b39 - rustc::ty::context::tls::with_opt::{{closure}}::h65b537994bb2f1f9 [INFO] [stderr] 10: 0x7f69bfc24a54 - rustc::ty::context::tls::with_context_opt::hbf2549717c798847 [INFO] [stderr] 11: 0x7f69bfc24ae6 - rustc::ty::context::tls::with_opt::he347fddd2472b8a3 [INFO] [stderr] 12: 0x7f69bfc256d7 - rustc::util::bug::opt_span_bug_fmt::h1084eeb9f315a2f2 [INFO] [stderr] 13: 0x7f69bfc25689 - rustc::util::bug::span_bug_fmt::hebf9a0dea114973f [INFO] [stderr] 14: 0x7f69bfb8c9a1 - ::fold_ty::hcf88cfb63723b0f8 [INFO] [stderr] 15: 0x7f69bcf6fbe2 - rustc::ty::fold::TypeFoldable::fold_with::ha9e85be2987afb17 [INFO] [stderr] 16: 0x7f69bcf98a9f - as core::iter::traits::collect::FromIterator<::Item>>::from_iter::hd4f7311bbc5e78cc [INFO] [stderr] 17: 0x7f69bce7801a - rustc::ty::fold::TypeFoldable::fold_with::h35e734ed03ac7533 [INFO] [stderr] 18: 0x7f69bce7c578 - rustc::ty::subst::Subst::subst::he4f5bf8cfd7ba993 [INFO] [stderr] 19: 0x7f69bcfe3f92 - as core::iter::traits::iterator::Iterator>::next::h6490a96a92c8da2e [INFO] [stderr] 20: 0x7f69bcfe80ff - rustc_typeck::check::wfcheck::check_where_clauses::h4c6d6e880ff732b3 [INFO] [stderr] 21: 0x7f69bcfe85eb - rustc_typeck::check::wfcheck::check_fn_or_method::h7c391b9df85fd89a [INFO] [stderr] 22: 0x7f69bcde6fb8 - rustc::ty::context::GlobalCtxt::enter_local::hd35eb966674c98e6 [INFO] [stderr] 23: 0x7f69bcfe63e9 - rustc_typeck::check::wfcheck::check_item_well_formed::h661342502edb3ce7 [INFO] [stderr] 24: 0x7f69bcdfc50d - rustc::ty::query::__query_compute::check_item_well_formed::h33c854c77eeffd26 [INFO] [stderr] 25: 0x7f69bcd52d9c - rustc::ty::query::::compute::h44535a9bdf7c93f7 [INFO] [stderr] 26: 0x7f69bce31041 - rustc::dep_graph::graph::DepGraph::with_task_impl::ha73df39b1223c48f [INFO] [stderr] 27: 0x7f69bcd790b7 - rustc::ty::query::plumbing::::get_query::h3181c80933320126 [INFO] [stderr] 28: 0x7f69bcfeae46 - ::visit_item::hf7a29fefb99d369e [INFO] [stderr] 29: 0x7f69c2a35169 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 30: 0x7f69bce398f8 - rustc_data_structures::sync::par_for_each_in::h86df4a77e530f28a [INFO] [stderr] 31: 0x7f69c2a35169 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 32: 0x7f69bcfa6742 - rustc::hir::Crate::par_visit_all_item_likes::h1434b429a29c6445 [INFO] [stderr] 33: 0x7f69bcdff9ac - rustc::util::common::time::had06d11910eb4b71 [INFO] [stderr] 34: 0x7f69bcf8f0c0 - rustc_typeck::check_crate::h8b1dd37d83f57720 [INFO] [stderr] 35: 0x7f69c1c52354 - rustc_interface::passes::analysis::h6ccd4567b91035dc [INFO] [stderr] 36: 0x7f69c2cecb35 - rustc::ty::query::__query_compute::analysis::h5c37647356da4d9e [INFO] [stderr] 37: 0x7f69c2cf9b58 - rustc::ty::query::::compute::hf4b1e202f5368e62 [INFO] [stderr] 38: 0x7f69c2cef547 - rustc::dep_graph::graph::DepGraph::with_task_impl::h79237624d85cd7e8 [INFO] [stderr] 39: 0x7f69c2cfaf10 - rustc::ty::query::plumbing::::get_query::h170e04456cdc5591 [INFO] [stderr] 40: 0x7f69c2d0b6d5 - rustc::ty::context::tls::enter_global::hacb71c4b55dd73f5 [INFO] [stderr] 41: 0x7f69c2d0db56 - rustc_interface::passes::BoxedGlobalCtxt::access::{{closure}}::hd2fa42e16df63065 [INFO] [stderr] 42: 0x7f69c1cf2974 - rustc_interface::passes::create_global_ctxt::{{closure}}::h5bc249452380bb5b [INFO] [stderr] 43: 0x7f69c2d0edc7 - rustc_interface::interface::run_compiler_in_existing_thread_pool::h01017a6213536cb6 [INFO] [stderr] 44: 0x7f69c2d8cda5 - std::thread::local::LocalKey::with::h57e4e9c51937ccb9 [INFO] [stderr] 45: 0x7f69c2d2feb4 - scoped_tls::ScopedKey::set::h581b66761e86975e [INFO] [stderr] 46: 0x7f69c2d7b801 - syntax::with_globals::h7a79417414defd1b [INFO] [stderr] 47: 0x7f69c2cdd414 - std::sys_common::backtrace::__rust_begin_short_backtrace::h81c9d6a59d8e80cf [INFO] [stderr] 48: 0x7f69c2a35169 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 49: 0x7f69c2d08e58 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hd1b720554dd4145a [INFO] [stderr] 50: 0x7f69c2a0636e - as core::ops::function::FnOnce>::call_once::h805c3cc89d534c05 [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stderr] 51: 0x7f69c2a33ddf - std::sys::unix::thread::Thread::new::thread_start::h6f10b78f26c98dc6 [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 52: 0x7f69c27a54a3 - start_thread [INFO] [stderr] 53: 0x7f69c20dbd0e - __clone [INFO] [stderr] 54: 0x0 - [INFO] [stderr] query stack during panic: [INFO] [stderr] #0 [check_item_well_formed] processing `new` [INFO] [stderr] #1 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stderr] thread 'rustc' panicked at 'Box', src/librustc_errors/lib.rs:572:9 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f69c2a27823 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55 [INFO] [stderr] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stderr] 1: 0x7f69c2a1f4cb - std::sys_common::backtrace::_print::h49a82ae9552e35c7 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stderr] 2: 0x7f69c2a23a56 - std::panicking::default_hook::{{closure}}::he20974adbefcc046 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] at src/libstd/panicking.rs:197 [INFO] [stderr] 3: 0x7f69c2a237e9 - std::panicking::default_hook::he4af6af4ac7fef7b [INFO] [stderr] at src/libstd/panicking.rs:211 [INFO] [stderr] 4: 0x7f69bffba680 - rustc::util::common::panic_hook::h47e7e1f47d58fee8 [INFO] [stderr] 5: 0x7f69c2a24248 - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f [INFO] [stderr] at src/libstd/panicking.rs:478 [INFO] [stderr] 6: 0x7f69bffd8a4c - std::panicking::begin_panic::h607713816230d65b [INFO] [stderr] 7: 0x7f69bfb9b27c - rustc_errors::Handler::span_bug::hb32ebafdf22a8d0d [INFO] [stderr] 8: 0x7f69bfc257cd - rustc::util::bug::opt_span_bug_fmt::{{closure}}::hc82f93aa21d0564b [INFO] [stderr] 9: 0x7f69bfc24b39 - rustc::ty::context::tls::with_opt::{{closure}}::h65b537994bb2f1f9 [INFO] [stderr] 10: 0x7f69bfc24a54 - rustc::ty::context::tls::with_context_opt::hbf2549717c798847 [INFO] [stderr] 11: 0x7f69bfc24ae6 - rustc::ty::context::tls::with_opt::he347fddd2472b8a3 [INFO] [stderr] 12: 0x7f69bfc256d7 - rustc::util::bug::opt_span_bug_fmt::h1084eeb9f315a2f2 [INFO] [stderr] 13: 0x7f69bfc25689 - rustc::util::bug::span_bug_fmt::hebf9a0dea114973f [INFO] [stderr] 14: 0x7f69bfb8c9a1 - ::fold_ty::hcf88cfb63723b0f8 [INFO] [stderr] 15: 0x7f69bcf6fbe2 - rustc::ty::fold::TypeFoldable::fold_with::ha9e85be2987afb17 [INFO] [stderr] 16: 0x7f69bcf98a9f - as core::iter::traits::collect::FromIterator<::Item>>::from_iter::hd4f7311bbc5e78cc [INFO] [stderr] 17: 0x7f69bce7801a - rustc::ty::fold::TypeFoldable::fold_with::h35e734ed03ac7533 [INFO] [stderr] 18: 0x7f69bce7c578 - rustc::ty::subst::Subst::subst::he4f5bf8cfd7ba993 [INFO] [stderr] 19: 0x7f69bcfe3f92 - as core::iter::traits::iterator::Iterator>::next::h6490a96a92c8da2e [INFO] [stderr] 20: 0x7f69bcfe80ff - rustc_typeck::check::wfcheck::check_where_clauses::h4c6d6e880ff732b3 [INFO] [stderr] 21: 0x7f69bcfe85eb - rustc_typeck::check::wfcheck::check_fn_or_method::h7c391b9df85fd89a [INFO] [stderr] 22: 0x7f69bcde6fb8 - rustc::ty::context::GlobalCtxt::enter_local::hd35eb966674c98e6 [INFO] [stderr] 23: 0x7f69bcfe63e9 - rustc_typeck::check::wfcheck::check_item_well_formed::h661342502edb3ce7 [INFO] [stderr] 24: 0x7f69bcdfc50d - rustc::ty::query::__query_compute::check_item_well_formed::h33c854c77eeffd26 [INFO] [stderr] 25: 0x7f69bcd52d9c - rustc::ty::query::::compute::h44535a9bdf7c93f7 [INFO] [stderr] 26: 0x7f69bce31041 - rustc::dep_graph::graph::DepGraph::with_task_impl::ha73df39b1223c48f [INFO] [stderr] 27: 0x7f69bcd790b7 - rustc::ty::query::plumbing::::get_query::h3181c80933320126 [INFO] [stderr] 28: 0x7f69bcfeae46 - ::visit_item::hf7a29fefb99d369e [INFO] [stderr] 29: 0x7f69c2a35169 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 30: 0x7f69bce398f8 - rustc_data_structures::sync::par_for_each_in::h86df4a77e530f28a [INFO] [stderr] 31: 0x7f69c2a35169 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 32: 0x7f69bcfa6742 - rustc::hir::Crate::par_visit_all_item_likes::h1434b429a29c6445 [INFO] [stderr] 33: 0x7f69bcdff9ac - rustc::util::common::time::had06d11910eb4b71 [INFO] [stderr] 34: 0x7f69bcf8f0c0 - rustc_typeck::check_crate::h8b1dd37d83f57720 [INFO] [stderr] 35: 0x7f69c1c52354 - rustc_interface::passes::analysis::h6ccd4567b91035dc [INFO] [stderr] 36: 0x7f69c2cecb35 - rustc::ty::query::__query_compute::analysis::h5c37647356da4d9e [INFO] [stderr] 37: 0x7f69c2cf9b58 - rustc::ty::query::::compute::hf4b1e202f5368e62 [INFO] [stderr] 38: 0x7f69c2cef547 - rustc::dep_graph::graph::DepGraph::with_task_impl::h79237624d85cd7e8 [INFO] [stderr] 39: 0x7f69c2cfaf10 - rustc::ty::query::plumbing::::get_query::h170e04456cdc5591 [INFO] [stderr] 40: 0x7f69c2d0b6d5 - rustc::ty::context::tls::enter_global::hacb71c4b55dd73f5 [INFO] [stderr] 41: 0x7f69c2d0db56 - rustc_interface::passes::BoxedGlobalCtxt::access::{{closure}}::hd2fa42e16df63065 [INFO] [stderr] 42: 0x7f69c1cf2974 - rustc_interface::passes::create_global_ctxt::{{closure}}::h5bc249452380bb5b [INFO] [stderr] 43: 0x7f69c2d0edc7 - rustc_interface::interface::run_compiler_in_existing_thread_pool::h01017a6213536cb6 [INFO] [stderr] 44: 0x7f69c2d8cda5 - std::thread::local::LocalKey::with::h57e4e9c51937ccb9 [INFO] [stderr] 45: 0x7f69c2d2feb4 - scoped_tls::ScopedKey::set::h581b66761e86975e [INFO] [stderr] 46: 0x7f69c2d7b801 - syntax::with_globals::h7a79417414defd1b [INFO] [stderr] 47: 0x7f69c2cdd414 - std::sys_common::backtrace::__rust_begin_short_backtrace::h81c9d6a59d8e80cf [INFO] [stderr] 48: 0x7f69c2a35169 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 49: 0x7f69c2d08e58 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hd1b720554dd4145a [INFO] [stderr] 50: 0x7f69c2a0636e - as core::ops::function::FnOnce>::call_once::h805c3cc89d534c05 [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stderr] 51: 0x7f69c2a33ddf - std::sys::unix::thread::Thread::new::thread_start::h6f10b78f26c98dc6 [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 52: 0x7f69c27a54a3 - start_thread [INFO] [stderr] 53: 0x7f69c20dbd0e - __clone [INFO] [stderr] 54: 0x0 - [INFO] [stderr] query stack during panic: [INFO] [stderr] #0 [check_item_well_formed] processing `new_boxed` [INFO] [stderr] #1 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stderr] error: aborting due to 6 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] [INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports [INFO] [stderr] [INFO] [stderr] note: rustc 1.36.0 (a53f9df32 2019-07-03) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C debuginfo=2 --crate-type lib [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] error: Could not compile `array-helpers`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "5549811dd03504ad9536dc5c9d3ef83864bd809dd50c1d315bef40c9b8003dc3"` [INFO] running `"docker" "rm" "-f" "5549811dd03504ad9536dc5c9d3ef83864bd809dd50c1d315bef40c9b8003dc3"` [INFO] [stdout] 5549811dd03504ad9536dc5c9d3ef83864bd809dd50c1d315bef40c9b8003dc3