编译中的一些warning

[bugxzhu]

warning: unused variable: exp_bits --> /home/bugx/lotus/bellperson/src/gpu/multiexp.rs:110:13 | 110 | let exp_bits = exp_size::<E>() * 8; | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: _exp_bits | = note: #[warn(unused_variables)] on by default

Compiling reqwest v0.10.10 warning: constant is never used: MAX_WINDOW_SIZE --> /home/bugx/lotus/bellperson/src/gpu/multiexp.rs:19:1 | 19 | const MAX_WINDOW_SIZE: usize = 12; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: #[warn(dead_code)] on by default

warning: constant is never used: MEMORY_PADDING --> /home/bugx/lotus/bellperson/src/gpu/multiexp.rs:21:1 | 21 | const MEMORY_PADDING: f64 = 0.1f64; // Let 20% of GPU memory be free | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

warning: function is never used: calc_best_chunk_size --> /home/bugx/lotus/bellperson/src/gpu/multiexp.rs:76:4 | 76 | fn calc_best_chunk_size(max_window_size: usize, core_count: usize, exp_bits: usize) -> usize { | ^^^^^^^^^^^^^^^^^^^^

warning: function is never used: calc_chunk_size --> /home/bugx/lotus/bellperson/src/gpu/multiexp.rs:87:4 | 87 | fn calc_chunk_size<E>(mem: u64, core_count: usize) -> usize | ^^^^^^^^^^^^^^^

Compiling phase21 v0.11.0 warning: 5 warnings emitted

[jackoelv]

this is a debug code, not release, you can ignore it.