Fails to run on macOS

[lockieluke]

   Compiling libc v0.2.155
   Compiling proc-macro2 v1.0.82
   Compiling unicode-ident v1.0.12
   Compiling autocfg v1.3.0
    Checking cfg-if v1.0.0
   Compiling version_check v0.9.4
   Compiling typenum v1.17.0
    Checking tinyvec_macros v0.1.1
error: the option `Z` is only accepted on the nightly compiler

help: consider switching to a nightly toolchain: `rustup default nightly`

note: selecting a toolchain with `+toolchain` arguments require a rustup proxy; see <https://rust-lang.github.io/rustup/concepts/index.html>

note: for more information about Rust's stability policy, see <https://doc.rust-lang.org/book/appendix-07-nightly-rust.html#unstable-features>

error: 1 nightly option were parsed

error: the option `Z` is only accepted on the nightly compiler

help: consider switching to a nightly toolchain: `rustup default nightly`

note: selecting a toolchain with `+toolchain` arguments require a rustup proxy; see <https://rust-lang.github.io/rustup/concepts/index.html>

note: for more information about Rust's stability policy, see <https://doc.rust-lang.org/book/appendix-07-nightly-rust.html#unstable-features>

error: 1 nightly option were parsed

error: could not compile `typenum` (build script)
warning: build failed, waiting for other jobs to finish...
error: the option `Z` is only accepted on the nightly compiler

help: consider switching to a nightly toolchain: `rustup default nightly`

note: selecting a toolchain with `+toolchain` arguments require a rustup proxy; see <https://rust-lang.github.io/rustup/concepts/index.html>

note: for more information about Rust's stability policy, see <https://doc.rust-lang.org/book/appendix-07-nightly-rust.html#unstable-features>

error: 1 nightly option were parsed

error: the option `Z` is only accepted on the nightly compiler

help: consider switching to a nightly toolchain: `rustup default nightly`

note: selecting a toolchain with `+toolchain` arguments require a rustup proxy; see <https://rust-lang.github.io/rustup/concepts/index.html>

note: for more information about Rust's stability policy, see <https://doc.rust-lang.org/book/appendix-07-nightly-rust.html#unstable-features>

error: 1 nightly option were parsed

error: could not compile `autocfg` (lib)
error: could not compile `cfg-if` (lib)
error: the option `Z` is only accepted on the nightly compiler

help: consider switching to a nightly toolchain: `rustup default nightly`

note: selecting a toolchain with `+toolchain` arguments require a rustup proxy; see <https://rust-lang.github.io/rustup/concepts/index.html>

note: for more information about Rust's stability policy, see <https://doc.rust-lang.org/book/appendix-07-nightly-rust.html#unstable-features>

error: 1 nightly option were parsed

error: could not compile `libc` (build script)
error: the option `Z` is only accepted on the nightly compiler

help: consider switching to a nightly toolchain: `rustup default nightly`

note: selecting a toolchain with `+toolchain` arguments require a rustup proxy; see <https://rust-lang.github.io/rustup/concepts/index.html>

note: for more information about Rust's stability policy, see <https://doc.rust-lang.org/book/appendix-07-nightly-rust.html#unstable-features>

error: 1 nightly option were parsed

error: could not compile `tinyvec_macros` (lib)
error: could not compile `proc-macro2` (build script)
error: the option `Z` is only accepted on the nightly compiler

help: consider switching to a nightly toolchain: `rustup default nightly`

note: selecting a toolchain with `+toolchain` arguments require a rustup proxy; see <https://rust-lang.github.io/rustup/concepts/index.html>

note: for more information about Rust's stability policy, see <https://doc.rust-lang.org/book/appendix-07-nightly-rust.html#unstable-features>

error: 1 nightly option were parsed

error: could not compile `unicode-ident` (lib)
error: the option `Z` is only accepted on the nightly compiler

help: consider switching to a nightly toolchain: `rustup default nightly`

note: selecting a toolchain with `+toolchain` arguments require a rustup proxy; see <https://rust-lang.github.io/rustup/concepts/index.html>

note: for more information about Rust's stability policy, see <https://doc.rust-lang.org/book/appendix-07-nightly-rust.html#unstable-features>

error: 1 nightly option were parsed

error: could not compile `version_check` (lib)

M1 MacBook Air

[est31]

As suggested by the error message you pasted, and also as pointed out in the readme, cargo-udeps requires nightly to run.