Mea culpa, I forgot in that instance to add a block device to the list of
okay to destroy. Here is the original error with the XFS block device
(/dev/sda1) included in the list:
test real_test_linear_device ... FAILED
failures:
---- real_test_linear_device stdout ----
thread 'real_test_linear_device' panicked at 'called `Result::unwrap()`
on an `Err` value: Io(Error { repr: Os { code: 16, message: "Device or
resource busy" } })', src/libcore/result.rs:860:4
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a
verbose backtrace.
stack backtrace:
0: std::sys::imp::backtrace::tracing::imp::unwind_backtrace
1: std::sys_common::backtrace::_print
2: std::panicking::default_hook::{{closure}}
3: std::panicking::default_hook
4: std::panicking::rust_panic_with_hook
5: std::panicking::begin_panic_new
6: std::panicking::begin_panic_fmt
7: rust_begin_unwind
8: core::panicking::panic_fmt
9: core::result::unwrap_failed
at /builddir/build/BUILD/rustc-1.20.0-src/src/libcore/
macros.rs:41
10: <core::result::Result<T, E>>::unwrap
at /builddir/build/BUILD/rustc-1.20.0-src/src/libcore/
result.rs:738
11: real_tests::util::dm_tests::test_linear_device
at tests/util/dm_tests.rs:51
12: core::ops::function::Fn::call
at /builddir/build/BUILD/rustc-1.20.0-src/src/libcore/ops/
function.rs:48
13: real_tests::test_with_spec
at tests/real_tests.rs:142
14: real_tests::real_test_linear_device
at tests/real_tests.rs:155
15: <F as test::FnBox<T>>::call_box
16: __rust_maybe_catch_panic
failures:
real_test_linear_device
test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 16 filtered
out
error: test failed, to rerun pass '--test real_tests'