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# development
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early-needle-54791

07/11/2019, 11:52 PM
@average-vr-56795 seeing this error from the rust tests for the caching command runner. have you seen it before?
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test cache::test::roundtrip ... thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: "Error creating/opening content database at \"/var/folders/bb/n7t3rs157850byt_jfdcq9k80000gn/T/.tmpp9fMo4/0\": MDB_MAP_FULL: Environment mapsize limit reached"', src/libcore/result.rs:999:5
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
             at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
   1: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:71
   2: std::panicking::default_hook::{{closure}}
             at src/libstd/sys_common/backtrace.rs:59
             at src/libstd/panicking.rs:197
   3: std::panicking::default_hook
             at src/libstd/panicking.rs:211
   4: <std::panicking::begin_panic::PanicPayload<A> as core::panic::BoxMeUp>::get
             at src/libstd/panicking.rs:474
   5: std::panicking::continue_panic_fmt
             at src/libstd/panicking.rs:381
   6: std::panicking::try::do_call
             at src/libstd/panicking.rs:308
   7: <T as core::any::Any>::type_id
             at src/libcore/panicking.rs:85
   8: core::hint::unreachable_unchecked
             at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/macros.rs:18
   9: core::result::Result<T,E>::unwrap
             at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/result.rs:800
  10: process_execution::cache::test::roundtrip
             at process_execution/src/cache.rs:195
  11: process_execution::cache::test::roundtrip::{{closure}}
             at process_execution/src/cache.rs:151
  12: core::ops::function::FnOnce::call_once
             at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/ops/function.rs:231
  13: <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once
             at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704
  14: panic_unwind::dwarf::eh::read_encoded_pointer
             at src/libpanic_unwind/lib.rs:85
  15: test::run_test::run_test_inner::{{closure}}
             at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:272
             at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:394
             at src/libtest/lib.rs:1468
  16: test::run_test::run_test_inner
             at src/libtest/lib.rs:1490
  17: test::run_tests_console::{{closure}}
             at src/libtest/lib.rs:1509
  18: test::fmt_thousands_sep
             at src/libtest/lib.rs:1168
             at src/libtest/lib.rs:973
  19: test::stats::percentile_of_sorted
             at src/libtest/lib.rs:294
  20: test::stats::percentile_of_sorted
             at src/libtest/lib.rs:328
  21: process_execution::main
  22: std::rt::lang_start::{{closure}}
             at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
  23: std::panicking::try::do_call
             at src/libstd/rt.rs:49
             at src/libstd/panicking.rs:293
  24: panic_unwind::dwarf::eh::read_encoded_pointer
             at src/libpanic_unwind/lib.rs:85
  25: std::panicking::update_count_then_panic
             at src/libstd/panicking.rs:272
             at src/libstd/panic.rs:394
             at src/libstd/rt.rs:48
  26: std::rt::lang_start
             at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
  27: process_execution::main
FAILED