src/std/io/driver/package.d(243,12): Error: template `core.atomic.cas` cannot deduce function from argument types `!()(shared(Driver)*, typeof(null), shared(Driver))`, candidates are:
/opt/dmd-safe/dmd/generated/linux/release/64/../../../../../druntime/import/core/atomic.d(279,6):        `cas(MemoryOrder succ = MemoryOrder.seq, MemoryOrder fail = MemoryOrder.seq, T, V1, V2)(T* here, V1 ifThis, V2 writeThis)`
  with `succ = cast(MemoryOrder)5,
       fail = cast(MemoryOrder)5,
       T = shared(Driver),
       V1 = typeof(null),
       V2 = shared(Driver)`
  must satisfy the following constraint:
`       !is(T == shared)`
/opt/dmd-safe/dmd/generated/linux/release/64/../../../../../druntime/import/core/atomic.d(297,6):        `cas(MemoryOrder succ = MemoryOrder.seq, MemoryOrder fail = MemoryOrder.seq, T, V1, V2)(shared(T)* here, V1 ifThis, V2 writeThis)`
  with `succ = cast(MemoryOrder)5,
       fail = cast(MemoryOrder)5,
       T = std.io.driver.Driver,
       V1 = typeof(null),
       V2 = shared(Driver)`
  must satisfy one of the following constraints:
`       is(T : V1)
       is(shared(T) : V1)`
/opt/dmd-safe/dmd/generated/linux/release/64/../../../../../druntime/import/core/atomic.d(317,6):        `cas(MemoryOrder succ = MemoryOrder.seq, MemoryOrder fail = MemoryOrder.seq, T, V1, V2)(shared(T)* here, shared(V1) ifThis, shared(V2) writeThis)`
  with `succ = cast(MemoryOrder)5,
       fail = cast(MemoryOrder)5,
       T = std.io.driver.Driver,
       V1 = typeof(null),
       V2 = std.io.driver.Driver`
  must satisfy the following constraint:
`       is(T == class)`
/opt/dmd-safe/dmd/generated/linux/release/64/../../../../../druntime/import/core/atomic.d(338,6):        `cas(MemoryOrder succ = MemoryOrder.seq, MemoryOrder fail = MemoryOrder.seq, T, V)(T* here, T* ifThis, V writeThis)`
  with `succ = cast(MemoryOrder)5,
       fail = cast(MemoryOrder)5,
       T = shared(Driver),
       V = shared(Driver)`
  must satisfy the following constraint:
`       !is(T == shared)`
/opt/dmd-safe/dmd/generated/linux/release/64/../../../../../druntime/import/core/atomic.d(355,6):        `cas(MemoryOrder succ = MemoryOrder.seq, MemoryOrder fail = MemoryOrder.seq, T, V1, V2)(shared(T)* here, V1* ifThis, V2 writeThis)`
src/std/io/driver/package.d(243,12):        ... (1 more, -v to show) ...
src/std/io/exception.d(42,13): Error: can only catch class objects derived from `Exception` in `@safe` code, not `object.Throwable`
/opt/dmd-safe/dmd/dmd-safe failed with exit code 1.