,&mut closure> () at /checkout/src/libcore/option.rs:383
#24 core::iter::{{impl}}::next<core::result::Result<(cargo::core::dependency::Dependency, collections::vec::Veccargo::core::resolver::Candidate, collections::vec::Veccollections::string::String), alloc::boxed::Box>,collections::vec::IntoIter<(cargo::core::dependency::Dependency, collections::vec::Veccollections::string::String)>,closure> () at /checkout/src/libcore/iter/mod.rs:999
#25 core::result::{{impl}}::from_iter::{{impl}}::next<(cargo::core::dependency::Dependency, collections::vec::Veccargo::core::resolver::Candidate, collections::vec::Veccollections::string::String),alloc::boxed::Box,core::iter::Map<collections::vec::IntoIter<(cargo::core::dependency::Dependency, collections::vec::Veccollections::string::String)>, closure>> ()
at /checkout/src/libcore/result.rs:1087
#26 core::iter::iterator::{{impl}}::next<core::result::{{impl}}::from_iter::Adapter<core::iter::Map<collections::vec::IntoIter<(cargo::core::dependency::Dependency, collections::vec::Veccollections::string::String)>, closure>, alloc::boxed::Box>> ()
at /checkout/src/libcore/iter/iterator.rs:2197
#27 0x000055b65453b515 in collections::vec::{{impl}}::from_iter<(cargo::core::dependency::Dependency, collections::vec::Veccargo::core::resolver::Candidate, collections::vec::Veccollections::string::String),&mut core::result::{{impl}}::from_iter::Adapter<core::iter::Map<collections::vec::IntoIter<(cargo::core::dependency::Dependency, collections::vec::Veccollections::string::String)>, closure>, alloc::boxed::Box>> () at /checkout/src/libcollections/vec.rs:1649
#28 collections::vec::{{impl}}::from_iter<(cargo::core::dependency::Dependency, collections::vec::Veccargo::core::resolver::Candidate, collections::vec::Veccollections::string::String),&mut core::result::{{impl}}::from_iter::Adapter<core::iter::Map<collections::vec::IntoIter<(cargo::core::dependency::Dependency, collections::vec::Veccollections::string::String)>, closure>, alloc::boxed::Box>> () at /checkout/src/libcollections/vec.rs:1562
#29 core::result::{{impl}}::from_iter<(cargo::core::dependency::Dependency, collections::vec::Veccargo::core::resolver::Candidate, collections::vec::Veccollections::string::String),alloc::boxed::Box,collections::vec::Vec<(cargo::core::dependency::Dependency, collections::vec::Veccargo::core::resolver::Candidate, collections::vec::Veccollections::string::String)>,core::iter::Map<collections::vec::IntoIter<(cargo::core::dependency::Dependency, collections::vec::Veccollections::string::String)>, closure>> ()
at /checkout/src/libcore/result.rs:1104
#30 core::iter::iterator::Iterator::collect<core::iter::Map<collections::vec::IntoIter<(cargo::core::dependency::Dependency, collections::vec::Veccollections::string::String)>, closure>,core::result::Result<collections::vec::Vec<(cargo::core::dependency::Dependency, collections::vec::Veccargo::core::resolver::Candidate, collections::vec::Veccollections::string::String)>, alloc::boxed::Box>> () at /checkout/src/libcore/iter/iterator.rs:1221
#31 cargo::core::resolver::Context::build_deps () at /checkout/cargo/src/cargo/core/resolver/mod.rs:831
#32 cargo::core::resolver::activate () at /checkout/cargo/src/cargo/core/resolver/mod.rs:340
#33 0x000055b65453dc92 in cargo::core::resolver::activate_deps_loop () at /checkout/cargo/src/cargo/core/resolver/mod.rs:565
—Type to continue, or q to quit—
#34 0x000055b654538a34 in cargo::core::resolver::resolve () at /checkout/cargo/src/cargo/core/resolver/mod.rs:280
#35 0x000055b6545eabc3 in cargo::ops::resolve::resolve_with_previous () at /checkout/cargo/src/cargo/ops/resolve.rs:225
#36 0x000055b654569494 in cargo::ops::cargo_generate_lockfile::update_lockfile ()
at /checkout/cargo/src/cargo/ops/cargo_generate_lockfile.rs:77
#37 0x000055b654426f12 in cargo::update::execute () at /checkout/cargo/src/bin/update.rs:77
#38 cargo::call_main_without_stdincargo::update::Options () at /checkout/cargo/src/cargo/lib.rs:120
#39 cargo::try_execute_builtin_command () at /checkout/cargo/src/bin/cargo.rs:259
#40 0x000055b6544005e5 in cargo::execute () at /checkout/cargo/src/bin/cargo.rs:223
#41 0x000055b6543f75d2 in cargo::call_main_without_stdincargo::Flags () at /checkout/cargo/src/cargo/lib.rs:120
#42 0x000055b6543ff1b2 in cargo::main::{{closure}} () at /checkout/cargo/src/bin/cargo.rs:91
#43 cargo::main () at /checkout/cargo/src/bin/cargo.rs:84
#44 0x000055b65499e756 in std::panicking::try::do_call<fn(),()> () at /checkout/src/libstd/panicking.rs:454
#45 0x000055b6549a5a2b in panic_unwind::__rust_maybe_catch_panic () at /checkout/src/libpanic_unwind/lib.rs:98
#46 0x000055b65499f207 in std::panicking::try<(),fn()> () at /checkout/src/libstd/panicking.rs:433
#47 std::panic::catch_unwind<fn(),()> () at /checkout/src/libstd/panic.rs:361
#48 std::rt::lang_start () at /checkout/src/libstd/rt.rs:57
#49 0x00007f35ba7802b1 in __libc_start_main (main=0x55b654455310 , argc=2, argv=0x7ffd6109f9a8, init=,
fini=, rtld_fini=, stack_end=0x7ffd6109f998) at …/csu/libc-start.c:291
#50 0x000055b6543e6a4d in _start ()