Broken AUR package

[fabifont]

Distribution (run cat /etc/os-release):

NAME="Arch Linux"
PRETTY_NAME="Arch Linux"
ID=arch
BUILD_ID=rolling
ANSI_COLOR="38;2;23;147;209"
HOME_URL="https://archlinux.org/"
DOCUMENTATION_URL="https://wiki.archlinux.org/"
SUPPORT_URL="https://bbs.archlinux.org/"
BUG_REPORT_URL="https://bugs.archlinux.org/"
LOGO=archlinux

Related Application and/or Package Version (run apt policy $PACKAGE NAME):
popsicle-1.3.0-1

Issue/Bug Description:
Can't install popsicle from AUR package. Compilation error:

   Compiling generic-array v0.12.3
error[E0308]: mismatched types
  --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/bhcomp.rs:62:24
   |
62 |     let bytes = bits / Limb::BITS;
   |                        ^^^^^^^^^^ expected `usize`, found `u32`

error[E0277]: cannot divide `usize` by `u32`
  --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/bhcomp.rs:62:22
   |
62 |     let bytes = bits / Limb::BITS;
   |                      ^ no implementation for `usize / u32`
   |
   = help: the trait `Div<u32>` is not implemented for `usize`

   Compiling digest v0.8.1
   Compiling block-buffer v0.7.3
error[E0308]: mismatched types
   --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/bigcomp.rs:157:55
    |
157 |     let nlz = den.leading_zeros().wrapping_sub(wlz) & (u32::BITS - 1);
    |                                                       ^^^^^^^^^^^^^^^ expected `usize`, found `u32`

error[E0277]: no implementation for `usize & u32`
   --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/bigcomp.rs:157:53
    |
157 |     let nlz = den.leading_zeros().wrapping_sub(wlz) & (u32::BITS - 1);
    |                                                     ^ no implementation for `usize & u32`
    |
    = help: the trait `BitAnd<u32>` is not implemented for `usize`

error[E0308]: mismatched types
   --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/bigcomp.rs:175:40
    |
175 |         let (q, r) = shift.ceil_divmod(Limb::BITS);
    |                                        ^^^^^^^^^^ expected `usize`, found `u32`
    |
help: you can convert a `u32` to a `usize` and panic if the converted value doesn't fit
    |
175 |         let (q, r) = shift.ceil_divmod(Limb::BITS.try_into().unwrap());
    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1043:42
     |
1043 |     let mut count = index.saturating_mul(Limb::BITS);
     |                                          ^^^^^^^^^^ expected `usize`, found `u32`
     |
help: you can convert a `u32` to a `usize` and panic if the converted value doesn't fit
     |
1043 |     let mut count = index.saturating_mul(Limb::BITS.try_into().unwrap());
     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1058:28
     |
1058 |     Limb::BITS.checked_mul(x.len())
     |                            ^^^^^^^ expected `u32`, found `usize`
     |
help: you can convert a `usize` to a `u32` and panic if the converted value doesn't fit
     |
1058 |     Limb::BITS.checked_mul(x.len().try_into().unwrap())
     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1059:22
     |
1059 |         .map(|v| v - nlz)
     |                      ^^^ expected `u32`, found `usize`

error[E0277]: cannot subtract `usize` from `u32`
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1059:20
     |
1059 |         .map(|v| v - nlz)
     |                    ^ no implementation for `u32 - usize`
     |
     = help: the trait `Sub<usize>` is not implemented for `u32`

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1060:20
     |
1060 |         .unwrap_or(usize::max_value())
     |                    ^^^^^^^^^^^^^^^^^^ expected `u32`, found `usize`
     |
help: you can convert a `usize` to a `u32` and panic if the converted value doesn't fit
     |
1060 |         .unwrap_or(usize::max_value().try_into().unwrap())
     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1058:5
     |
1054 |   pub fn bit_length(x: &[Limb]) -> usize {
     |                                    ----- expected `usize` because of return type
...
1058 | /     Limb::BITS.checked_mul(x.len())
1059 | |         .map(|v| v - nlz)
1060 | |         .unwrap_or(usize::max_value())
     | |______________________________________^ expected `usize`, found `u32`
     |
help: you can convert a `u32` to a `usize` and panic if the converted value doesn't fit
     |
1058 |     Limb::BITS.checked_mul(x.len())
1059 |         .map(|v| v - nlz)
1060 |         .unwrap_or(usize::max_value()).try_into().unwrap()
     |

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1085:23
     |
1085 |     debug_assert!(n < bits && n != 0);
     |                       ^^^^ expected `usize`, found `u32`
     |
help: you can convert a `u32` to a `usize` and panic if the converted value doesn't fit
     |
1085 |     debug_assert!(n < bits.try_into().unwrap() && n != 0);
     |                       ^^^^^^^^^^^^^^^^^^^^^^^^

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1092:25
     |
1092 |     let lshift = bits - n;
     |                         ^ expected `u32`, found `usize`

error[E0277]: cannot subtract `usize` from `u32`
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1092:23
     |
1092 |     let lshift = bits - n;
     |                       ^ no implementation for `u32 - usize`
     |
     = help: the trait `Sub<usize>` is not implemented for `u32`

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1134:19
     |
1134 |     let rem = n % bits;
     |                   ^^^^ expected `usize`, found `u32`

error[E0277]: cannot mod `usize` by `u32`
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1134:17
     |
1134 |     let rem = n % bits;
     |                 ^ no implementation for `usize % u32`
     |
     = help: the trait `Rem<u32>` is not implemented for `usize`

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1135:19
     |
1135 |     let div = n / bits;
     |                   ^^^^ expected `usize`, found `u32`

error[E0277]: cannot divide `usize` by `u32`
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1135:17
     |
1135 |     let div = n / bits;
     |                 ^ no implementation for `usize / u32`
     |
     = help: the trait `Div<u32>` is not implemented for `usize`

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1191:23
     |
1191 |     debug_assert!(n < bits);
     |                       ^^^^ expected `usize`, found `u32`
     |
help: you can convert a `u32` to a `usize` and panic if the converted value doesn't fit
     |
1191 |     debug_assert!(n < bits.try_into().unwrap());
     |                       ^^^^^^^^^^^^^^^^^^^^^^^^

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1201:25
     |
1201 |     let rshift = bits - n;
     |                         ^ expected `u32`, found `usize`

error[E0277]: cannot subtract `usize` from `u32`
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1201:23
     |
1201 |     let rshift = bits - n;
     |                       ^ no implementation for `u32 - usize`
     |
     = help: the trait `Sub<usize>` is not implemented for `u32`

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1253:19
     |
1253 |     let rem = n % bits;
     |                   ^^^^ expected `usize`, found `u32`

error[E0277]: cannot mod `usize` by `u32`
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1253:17
     |
1253 |     let rem = n % bits;
     |                 ^ no implementation for `usize % u32`
     |
     = help: the trait `Rem<u32>` is not implemented for `usize`

error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1254:19
     |
1254 |     let div = n / bits;
     |                   ^^^^ expected `usize`, found `u32`

error[E0277]: cannot divide `usize` by `u32`
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:1254:17
     |
1254 |     let div = n / bits;
     |                 ^ no implementation for `usize / u32`
     |
     = help: the trait `Div<u32>` is not implemented for `usize`

   Compiling sha2 v0.8.0
   Compiling md-5 v0.8.0
error[E0308]: mismatched types
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:2065:27
     |
2065 |     let rs = Limb::BITS - s;
     |                           ^ expected `u32`, found `usize`

error[E0277]: cannot subtract `usize` from `u32`
    --> /home/fabio/.cargo/registry/src/github.com-1ecc6299db9ec823/lexical-core-0.7.4/src/atof/algorithm/math.rs:2065:25
     |
2065 |     let rs = Limb::BITS - s;
     |                         ^ no implementation for `u32 - usize`
     |
     = help: the trait `Sub<usize>` is not implemented for `u32`

error: aborting due to 27 previous errors

Some errors have detailed explanations: E0277, E0308.
For more information about an error, try `rustc --explain E0277`.
error: could not compile `lexical-core`

To learn more, run the command again with --verbose.
warning: build failed, waiting for other jobs to finish...
error: build failed
make: *** [Makefile:107: target/release/popsicle-gtk] Error 101
==> ERROR: A failure occurred in build().
    Aborting...
error: failed to build 'popsicle-1.3.0-1':
error: packages failed to build: popsicle-1.3.0-1

Steps to reproduce (if you know):
Install popsicle-1.3.0-1 from AUR package.

Expected behavior:
Installation completed successfully.

Other Notes:
popsicle-git-1.3.0.r43.g1a94779-1 works fine.

[mmstick]

Should report that to the AUR package

[InternetUnexplorer]

I ran into this as well when trying to package 1.3.0, it seems to be caused by Alexhuszagh/rust-lexical#55.
It's fixed in lexical-core 0.7.5, but the Cargo.lock for popsicle 1.3.0 specifies lexical-core 0.7.4.
lexical-core was updated in 7146405, but there hasn't been a release since then.
Do you think it would be worth releasing a 1.3.1 to prevent others from running into this in the future, or is it too minor of a change?