Log message:
cbindgen: Update to 0.19.0

Changelog:
    Simplify types in generics (#663)
    Use --profile=check for macro expansion (#671)
    Use exported name to prefix enum variants (#672)
    Fix path attribute handling in inline submodules (#679)
    Fix a stack overflow with some recursive typedefs (#680)

Log message:
cbindgen: Update to 0.18.0

Changelog:
* Simplify types in nested types such as pointed-to types and function \ 
signatures (#661)

Log message:
cbindgen: Update to 0.17.0

* Split cargo depends into cargo-depends.mk file.

Changelog:
    Add with_parse_extra_bindings to builder. (#645)
    Support NonZero and fix incorrect simplification of Option into ptr. (#647)
    Deal with name conflicts correctly in declaration type resolution. (#651)
    Support pointers to ZSTs. (#656)

Log message:
cbindgen: Update to 0.16.0

* Fix HOMEPAGE.

Changelog:
     * Remove artificial restriction on lifetime parameters on enums (#604)
     * Add an option for converting usize/isize into size_t/ptrdiff_t. (#606)
     * Allow controlling the cargo profile used for expansion. (#607)
     * Support wider range of expressions in enum discriminants (#614)
     * Support generation of Cython bindings (#590)
     * Fixed some issues with style=tag and recursive structs (#615)
     * Default C style to Both (as specified in docs) (#615)
     * Fix resolution of path dependencies from certain modules. (#629)
     * Support inlined definitions for tuple variants with a single field in C (#631)

Log message:
cbindgen: Update to 0.15.0

Changelog:
  * Allow customizing mangling of generic parameters in C (#575)
  * Box<T> simplifies to T* in C (4ce324c)
  * ManuallyDrop<T> and MaubeUninit<T> simplify to T in C, and are \ 
opaque in C++ (0076a17)
  * C++ supports a derive-ostream annotation to derive serialization of structs, \ 
unions and enums (#582)
  * Large character constants have been fixed on Windows (#586)
  * Constants are now generated for typedefs, etc (#589)
  * The `sort_by` configuration option has been made to work for constants (#587)
  * Default sort order is source order now (sort_by = "None"), and can \ 
be changed by the above option (#587)

Log message:
cbindgen: Update to 0.14.6

Changelog:
Not available.

Log message:
cbindgen: Update to 0.14.6

CHangelog:
Not available.

Log message:
cbindgen: Update to 0.14.4

Changelog:
     * Allow to override the mangling separator (#502)

     * cbindgen now handles better having ZSTs in template parameters, and
       default template parameters (#563).

     * Support for annotating nonnull pointers (#558)

     * Fixed bitflags that overflow a signed integer (#556)

     * Support for wildcard argument names (#550)

     * Support for the never return type, with configurable annotation (#549)

     * Properly reject arrays as function arguments (#540)

Log message:
cargo users: drop do-build target where redundant

Log message:
rust/cargo: replace "--frozen --locked" with "--offline" in \ 
various places

The intent of "--frozen --locked" was to not use the network, but the new
"--offline" option is better suited for this purpose.
It for example allows us to patch Cargo.toml if necessary without having
to regen checksums.