thread 'resolve::public_dependency_skipping_in_backtracking_10' panicked at 'path.metadata() failed with The system cannot find the file specified. (os error 2)', tests\testsuite\support\paths.rs:197:25
stack backtrace:
   0: backtrace::backtrace::trace_unsynchronized
             at C:\Users\appveyor\.cargo\registry\src\github.com-1ecc6299db9ec823\backtrace-0.3.25\src\backtrace\mod.rs:66
   1: std::sys_common::backtrace::_print
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\sys_common\backtrace.rs:47
   2: std::sys_common::backtrace::print
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\sys_common\backtrace.rs:36
   3: std::panicking::default_hook::{{closure}}
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\panicking.rs:197
   4: std::panicking::default_hook
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\panicking.rs:208
   5: std::panicking::rust_panic_with_hook
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\panicking.rs:474
   6: std::panicking::continue_panic_fmt
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\panicking.rs:381
   7: std::panicking::begin_panic_fmt
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\panicking.rs:336
   8: testsuite::support::paths::do_op<closure>
             at .\tests\testsuite\support\paths.rs:197
   9: testsuite::support::paths::{{impl}}::rm_rf
             at .\tests\testsuite\support\paths.rs:129
  10: testsuite::support::paths::{{impl}}::rm_rf
             at .\tests\testsuite\support\paths.rs:124
  11: testsuite::support::paths::{{impl}}::rm_rf
             at .\tests\testsuite\support\paths.rs:124
  12: core::ops::function::FnOnce::call_once<fn() -> std::path::PathBuf,()>
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\src\libcore\ops\function.rs:231
  13: lazy_static::lazy::{{impl}}::get::{{closure}}<std::path::PathBuf,fn() -> std::path::PathBuf>
             at C:\Users\finkelman.SEMCOGDOM\.cargo\registry\src\github.com-1ecc6299db9ec823\lazy_static-1.3.0\src\inline_lazy.rs:28
  14: std::sync::once::{{impl}}::call_once::{{closure}}<closure>
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\src\libstd\sync\once.rs:220
  15: std::sync::once::Once::call_inner
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\sync\once.rs:387
  16: std::sync::once::Once::call_once<closure>
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\src\libstd\sync\once.rs:220
  17: testsuite::support::paths::{{impl}}::deref::__stability
             at <::lazy_static::__lazy_static_internal macros>:12
  18: testsuite::support::paths::{{impl}}::deref
             at <::lazy_static::__lazy_static_internal macros>:13
  19: testsuite::support::paths::root
             at .\tests\testsuite\support\paths.rs:83
  20: testsuite::support::paths::init_root
             at .\tests\testsuite\support\paths.rs:67
  21: testsuite::resolve::public_dependency_skipping_in_backtracking_10
             at .\tests\testsuite\resolve.rs:561
  22: testsuite::resolve::public_dependency_skipping_in_backtracking_10::{{closure}}
             at .\tests\testsuite\resolve.rs:562
  23: core::ops::function::FnOnce::call_once<closure,()>
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\src\libcore\ops\function.rs:231
  24: alloc::boxed::{{impl}}::call_once<(),FnOnce<()>>
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\src\liballoc\boxed.rs:746
  25: panic_unwind::__rust_maybe_catch_panic
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libpanic_unwind\lib.rs:85
  26: std::panicking::try
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\src\libstd\panicking.rs:272
  27: std::panic::catch_unwind
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\src\libstd\panic.rs:388
  28: test::run_test::run_test_inner::{{closure}}
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libtest\lib.rs:1466
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

---- resolve::public_dependency_skipping_in_backtracking stdout ----
thread 'resolve::public_dependency_skipping_in_backtracking' panicked at 'Once instance has previously been poisoned', src\libstd\sync\once.rs:362:21
stack backtrace:
   0: backtrace::backtrace::trace_unsynchronized
             at C:\Users\appveyor\.cargo\registry\src\github.com-1ecc6299db9ec823\backtrace-0.3.25\src\backtrace\mod.rs:66
   1: std::sys_common::backtrace::_print
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\sys_common\backtrace.rs:47
   2: std::sys_common::backtrace::print
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\sys_common\backtrace.rs:36
   3: std::panicking::default_hook::{{closure}}
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\panicking.rs:197
   4: std::panicking::default_hook
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\panicking.rs:208
   5: std::panicking::rust_panic_with_hook
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\panicking.rs:474
   6: std::panicking::begin_panic<str*>
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\panicking.rs:408
   7: std::sync::once::Once::call_inner
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libstd\sync\once.rs:362
   8: std::sync::once::Once::call_once<closure>
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\src\libstd\sync\once.rs:220
   9: testsuite::support::paths::{{impl}}::deref::__stability
             at <::lazy_static::__lazy_static_internal macros>:12
  10: testsuite::support::paths::{{impl}}::deref
             at <::lazy_static::__lazy_static_internal macros>:13
  11: testsuite::support::paths::root
             at .\tests\testsuite\support\paths.rs:83
  12: testsuite::support::paths::init_root
             at .\tests\testsuite\support\paths.rs:67
  13: testsuite::resolve::public_dependency_skipping_in_backtracking
             at .\tests\testsuite\resolve.rs:355
  14: testsuite::resolve::public_dependency_skipping_in_backtracking::{{closure}}
             at .\tests\testsuite\resolve.rs:356
  15: core::ops::function::FnOnce::call_once<closure,()>
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\src\libcore\ops\function.rs:231
  16: alloc::boxed::{{impl}}::call_once<(),FnOnce<()>>
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\src\liballoc\boxed.rs:746
  17: panic_unwind::__rust_maybe_catch_panic
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libpanic_unwind\lib.rs:85
  18: std::panicking::try
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\src\libstd\panicking.rs:272
  19: std::panic::catch_unwind
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\src\libstd\panic.rs:388
  20: test::run_test::run_test_inner::{{closure}}
             at /rustc/5d8f59f4b1473217c2de7e02330b5aaae70a1668\/src\libtest\lib.rs:1466
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.