custos-math with opencl feature

cargo test --features=opencl.log

# cargo test --features=opencl
    Updating crates.io index
  Downloaded custos v0.6.2
  Downloaded 1 crate (107.3 KB) in 0.98s
   Compiling custos v0.6.2
   Compiling custos-math v0.6.2 (/root/crate/custos-math)
error[E0425]: cannot find function `construct_buffer` in module `custos::opencl`
  --> src/opencl.rs:95:29
   |
95 |             custos::opencl::construct_buffer(device, no_drop.to_buf(), matrix.node.idx)
   |                             ^^^^^^^^^^^^^^^^ not found in `custos::opencl`

error[E0425]: cannot find function `construct_buffer` in module `custos::opencl`
   --> src/opencl.rs:167:29
    |
167 |             custos::opencl::construct_buffer(device, no_drop.to_buf(), (lhs.node.idx, rhs.node.idx))
    |                             ^^^^^^^^^^^^^^^^ not found in `custos::opencl`

warning: the item `SumOverOps` is imported redundantly
   --> src/ops/nn/softmax.rs:159:31
    |
7   |     matrix_multiply::MatrixMultiply, ColOp, FnsOps, Matrix, MaxOps, SumOverOps,
    |                                                                     ---------- the item `SumOverOps` is already imported here
...
159 |     use crate::{cl_tew, Gemm, SumOverOps};
    |                               ^^^^^^^^^^
    |
    = note: `#[warn(unused_imports)]` on by default

warning: unused imports: `Dim2`, `GenericBlas`, `MayDim2`
 --> src/ops/gemm.rs:1:34
  |
1 | use custos::{impl_stack, Device, Dim2, GenericBlas, MainMemory, MayDim2, Shape, CPU};
  |                                  ^^^^  ^^^^^^^^^^^              ^^^^^^^

warning: unused import: `number::Number`
 --> src/ops/max.rs:2:14
  |
2 | use custos::{number::Number, CDatatype, Device, MainMemory, CPU};
  |              ^^^^^^^^^^^^^^
# cargo test --features=opencl
    Updating crates.io index
  Downloaded custos v0.6.2
  Downloaded 1 crate (107.3 KB) in 0.98s
   Compiling custos v0.6.2
   Compiling custos-math v0.6.2 (/root/crate/custos-math)
error[E0425]: cannot find function `construct_buffer` in module `custos::opencl`
  --> src/opencl.rs:95:29
   |
95 |             custos::opencl::construct_buffer(device, no_drop.to_buf(), matrix.node.idx)
   |                             ^^^^^^^^^^^^^^^^ not found in `custos::opencl`

error[E0425]: cannot find function `construct_buffer` in module `custos::opencl`
   --> src/opencl.rs:167:29
    |
167 |             custos::opencl::construct_buffer(device, no_drop.to_buf(), (lhs.node.idx, rhs.node.idx))
    |                             ^^^^^^^^^^^^^^^^ not found in `custos::opencl`

warning: the item `SumOverOps` is imported redundantly
   --> src/ops/nn/softmax.rs:159:31
    |
7   |     matrix_multiply::MatrixMultiply, ColOp, FnsOps, Matrix, MaxOps, SumOverOps,
    |                                                                     ---------- the item `SumOverOps` is already imported here
...
159 |     use crate::{cl_tew, Gemm, SumOverOps};
    |                               ^^^^^^^^^^
    |
    = note: `#[warn(unused_imports)]` on by default

warning: unused imports: `Dim2`, `GenericBlas`, `MayDim2`
 --> src/ops/gemm.rs:1:34
  |
1 | use custos::{impl_stack, Device, Dim2, GenericBlas, MainMemory, MayDim2, Shape, CPU};
  |                                  ^^^^  ^^^^^^^^^^^              ^^^^^^^

warning: unused import: `number::Number`
 --> src/ops/max.rs:2:14
  |
2 | use custos::{number::Number, CDatatype, Device, MainMemory, CPU};
  |              ^^^^^^^^^^^^^^