Nightly clippy fails on `array-size-threshold`

[poliorcetics]

Summary

Using the following clippy.toml with nightly clippy

array-size-threshold = 10000

I get the following error:

error: error reading Clippy's configuration file `/private/tmp/toto/clippy.toml`: u128 is not supported for key `array-size-threshold`

Reproducer

I tried this:

cd /tmp
cargo new toto
cd toto
echo "array-size-threshold = 10000" > clippy.toml
cargo +nightly clippy

I expected this to happen: No warnings, successful compilation

Instead this happened:

cargo +nightly clippy
    Checking toto v0.1.0 (/private/tmp/toto)
error: error reading Clippy's configuration file `/private/tmp/toto/clippy.toml`: u128 is not supported for key `array-size-threshold`

error: could not compile `toto` due to previous error

Version

- cargo 1.69.0-nightly (9d5b32f50 2023-02-22)
- clippy 0.1.69 (7281249a 2023-02-27)

rustc 1.69.0-nightly (7281249a1 2023-02-27)
binary: rustc
commit-hash: 7281249a19a9755e9d889ee251ec323629caadab
commit-date: 2023-02-27
host: aarch64-apple-darwin
release: 1.69.0-nightly
LLVM version: 15.0.7

Additional Labels

No response

[poliorcetics]

Also reproducible in beta

@rustbot label +regression-from-stable-to-beta

[rustbot]

Error: Label regression-from-stable-to-beta can only be set by Rust team members

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