lots of usize/u32 issues?

[colemickens]

This is the result of me trying to build ripasso-cursive via the nix package (nixos-unstable channel)

   Compiling ripasso-cursive v0.5.1 (/build/source/cursive)
   Compiling unic-langid v0.9.0
   Compiling quote v1.0.6
   Compiling jobserver v0.1.21
   Compiling xcb v0.8.2
   Compiling mio v0.7.0
   Compiling signal-hook-registry v1.2.0
   Compiling time v0.1.43
   Compiling parking_lot_core v0.7.2
   Compiling cstr-argument v0.1.1
   Compiling aho-corasick v0.7.10
   Compiling smallvec v0.6.13
   Compiling lexical-core v0.6.2
   Compiling gettext v0.4.0
   Compiling crossbeam-channel v0.4.2
   Compiling toml v0.5.6
   Compiling cc v1.0.54
   Compiling const-random-macro v0.1.8
   Compiling rand_core v0.5.1
   Compiling signal-hook v0.1.15
   Compiling parking_lot v0.10.2
   Compiling unicode-normalization v0.1.9
   Compiling regex v1.3.9
   Compiling chrono v0.4.11
   Compiling libz-sys v1.0.25
   Compiling openssl-sys v0.9.58
   Compiling libssh2-sys v0.2.17
   Compiling libgit2-sys v0.12.9+1.0.1
   Compiling const-random v0.1.8
   Compiling rand_chacha v0.2.2
   Compiling darling_core v0.10.2
   Compiling gpgme v0.9.2
   Compiling crossterm v0.17.7
   Compiling idna v0.2.0
error[E0308]: mismatched types
  --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/bhcomp.rs:62:24
   |
62 |     let bytes = bits / Limb::BITS;
   |                        ^^^^^^^^^^ expected `usize`, found `u32`

error[E0277]: cannot divide `usize` by `u32`
  --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/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`

error[E0308]: mismatched types
   --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/bigcomp.rs:158:55
    |
158 |     let nlz = den.leading_zeros().wrapping_sub(wlz) & (u32::BITS - 1);
    |                                                       ^^^^^^^^^^^^^^^ expected `usize`, found `u32`

error[E0277]: no implementation for `usize & u32`
   --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/bigcomp.rs:158:53
    |
158 |     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
   --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/bigcomp.rs:176:40
    |
176 |         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
    |
176 |         let (q, r) = shift.ceil_divmod(Limb::BITS.try_into().unwrap());
    |                                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:2071:27
     |
2071 |     let rs = Limb::BITS - s;
     |                           ^ expected `u32`, found `usize`

error[E0277]: cannot subtract `usize` from `u32`
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:2071:25
     |
2071 |     let rs = Limb::BITS - s;
     |                         ^ no implementation for `u32 - usize`
     |
     = help: the trait `Sub<usize>` is not implemented for `u32`

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1049:42
     |
1049 |     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
     |
1049 |     let mut count = index.saturating_mul(Limb::BITS.try_into().unwrap());
     |                                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1064:28
     |
1064 |     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
     |
1064 |     Limb::BITS.checked_mul(x.len().try_into().unwrap())
     |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1065:22
     |
1065 |         .map(|v| v - nlz)
     |                      ^^^ expected `u32`, found `usize`

error[E0277]: cannot subtract `usize` from `u32`
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1065:20
     |
1065 |         .map(|v| v - nlz)
     |                    ^ no implementation for `u32 - usize`
     |
     = help: the trait `Sub<usize>` is not implemented for `u32`

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1066:20
     |
1066 |         .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
     |
1066 |         .unwrap_or(usize::max_value().try_into().unwrap())
     |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1064:5
     |
1060 |   pub fn bit_length(x: &[Limb]) -> usize {
     |                                    ----- expected `usize` because of return type
...
1064 | /     Limb::BITS.checked_mul(x.len())
1065 | |         .map(|v| v - nlz)
1066 | |         .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
     |
1064 ~     Limb::BITS.checked_mul(x.len())
1065 +         .map(|v| v - nlz)
1066 +         .unwrap_or(usize::max_value()).try_into().unwrap()
     |

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1091:23
     |
1091 |     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
     |
1091 |     debug_assert!(n < bits.try_into().unwrap() && n != 0);
     |                       ~~~~~~~~~~~~~~~~~~~~~~~~

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1098:25
     |
1098 |     let lshift = bits - n;
     |                         ^ expected `u32`, found `usize`

error[E0277]: cannot subtract `usize` from `u32`
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1098:23
     |
1098 |     let lshift = bits - n;
     |                       ^ no implementation for `u32 - usize`
     |
     = help: the trait `Sub<usize>` is not implemented for `u32`

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1140:19
     |
1140 |     let rem = n % bits;
     |                   ^^^^ expected `usize`, found `u32`

error[E0277]: cannot mod `usize` by `u32`
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1140:17
     |
1140 |     let rem = n % bits;
     |                 ^ no implementation for `usize % u32`
     |
     = help: the trait `Rem<u32>` is not implemented for `usize`

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1141:19
     |
1141 |     let div = n / bits;
     |                   ^^^^ expected `usize`, found `u32`

error[E0277]: cannot divide `usize` by `u32`
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1141:17
     |
1141 |     let div = n / bits;
     |                 ^ no implementation for `usize / u32`
     |
     = help: the trait `Div<u32>` is not implemented for `usize`

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1197:23
     |
1197 |     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
     |
1197 |     debug_assert!(n < bits.try_into().unwrap());
     |                       ~~~~~~~~~~~~~~~~~~~~~~~~

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1207:25
     |
1207 |     let rshift = bits - n;
     |                         ^ expected `u32`, found `usize`

error[E0277]: cannot subtract `usize` from `u32`
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1207:23
     |
1207 |     let rshift = bits - n;
     |                       ^ no implementation for `u32 - usize`
     |
     = help: the trait `Sub<usize>` is not implemented for `u32`

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1259:19
     |
1259 |     let rem = n % bits;
     |                   ^^^^ expected `usize`, found `u32`

error[E0277]: cannot mod `usize` by `u32`
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1259:17
     |
1259 |     let rem = n % bits;
     |                 ^ no implementation for `usize % u32`
     |
     = help: the trait `Rem<u32>` is not implemented for `usize`

error[E0308]: mismatched types
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1260:19
     |
1260 |     let div = n / bits;
     |                   ^^^^ expected `usize`, found `u32`

error[E0277]: cannot divide `usize` by `u32`
    --> /build/ripasso-cursive-0.5.1-vendor.tar.gz/lexical-core/src/atof/algorithm/math.rs:1260:17
     |
1260 |     let div = n / bits;
     |                 ^ no implementation for `usize / u32`
     |
     = help: the trait `Div<u32>` is not implemented for `usize`

Some errors have detailed explanations: E0277, E0308.
For more information about an error, try `rustc --explain E0277`.
error: could not compile `lexical-core` due to 27 previous errors
warning: build failed, waiting for other jobs to finish...
error: build failed

[alexanderkjall]

This might be that lexical-core broke in new version of cargo, see Alexhuszagh/rust-lexical#55

I'll fix this by doing a cargo update and doing a new 0.5.x release. Just have to reproduce this locally.

[alexanderkjall]

I just released version 0.5.2, that should fix this.

[stigtsp]

Updated in nixpkgs by NixOS/nixpkgs#149198