error[E0412]: cannot find type `Option` in this scope
   --> /Users/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.105/src/unix/bsd/apple/b64/x86_64/mod.rs:113:19
    |
113 |         pub size: Option<unsafe extern "C" fn(
    |                   ^^^^^^ not found in this scope
    |
help: consider importing this enum
    |
178 |         use Option;
    |

error[E0412]: cannot find type `Option` in this scope
   --> /Users/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.105/src/unix/bsd/apple/b64/x86_64/mod.rs:117:21
    |
117 |         pub malloc: Option<unsafe extern "C" fn(
    |                     ^^^^^^ not found in this scope
    |
help: consider importing this enum
    |
178 |         use Option;
    |

error[E0412]: cannot find type `Option` in this scope
   --> /Users/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.105/src/unix/bsd/apple/b64/x86_64/mod.rs:121:21
    |
164 |         pub pressure_relief: Option<unsafe extern "C" fn(
    |                              ^^^^^^ not found in this scope
    |
help: consider importing this enum
    |
178 |         use Option;
    |

error[E0412]: cannot find type `Option` in this scope
   --> /Users/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.105/src/unix/bsd/apple/b64/x86_64/mod.rs:168:30
    |
168 |         pub claimed_address: Option<unsafe extern "C" fn(
    |                              ^^^^^^ not found in this scope
    |
help: consider importing this enum
    |
178 |         use Option;
    |

warning: an associated function with this name may be added to the standard library in the future
 --> compiler-builtins/src/float/pow.rs:8:19
  |
8 |     let mut pow = i32::abs_diff(b, 0);
  |                   ^^^^^^^^^^^^^
  |
  = note: `#[warn(unstable_name_collisions)]` on by default
  = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
  = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
  = help: call with fully qualified syntax `int::Int::abs_diff(...)` to keep using the current method
  = help: add `#![feature(int_abs_diff)]` to the crate attributes to enable `rustc_std_workspace_core::num::<impl i32>::abs_diff`