Precondition violation when printing 0/1 Rational in nightly rust

This code:

println!("{}", "0/1".parse::<rug::Rational>().unwrap());

Causes precondition violation in nightly rust in slice::from_raw_part

Error:   × Main thread panicked.
  ├─▶ at library/core/src/panicking.rs:152:5
  ╰─▶ unsafe precondition(s) violated: slice::from_raw_parts requires the pointer to be aligned and non-null, and the
      total size of the slice not to exceed `isize::MAX`
  help: set the `RUST_BACKTRACE=1` environment variable to display a backtrace.

thread caused non-unwinding panic. aborting.
[1]    96386 abort      ./target/debug/ppl
gavrilikhin_d@mbp:~/Code/ppl (master ±)$ RUST_BACKTRACE=1 ./target/debug/ppl
Error:   × Main thread panicked.
  ├─▶ at library/core/src/panicking.rs:152:5
  ╰─▶ unsafe precondition(s) violated: slice::from_raw_parts requires the pointer to be aligned and non-null, and the
      total size of the slice not to exceed `isize::MAX`
         0: 0x107056c60 - rust_begin_unwind
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/std/src/panicking.rs:646
         1: 0x107593e88 - core::panicking::panic_nounwind_fmt::runtime::h8fca77982a76b544
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/panicking.rs:110
                       - core::panicking::panic_nounwind_fmt::h14a5f31235a3bc79
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/panicking.rs:120
         2: 0x107593f08 - core::panicking::panic_nounwind::hc82fb3e15df99055
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/panicking.rs:152
         3: 0x10700e10c - core::slice::raw::from_raw_parts::precondition_check::h05097a1530372809
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/ub_checks.rs:66
         4: 0x10700e05c - core::slice::raw::from_raw_parts::he92b593df91fb40b
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/slice/raw.rs:96
         5: 0x10700f668 - rug::misc::StringLike::as_str::hdf8623904e3a52aa
                      at /Users/gavrilikhin_d/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rug-1.24.0/src/
      misc.rs:262
         6: 0x107011cb4 - rug::rational::big::append_to_string::h463da818521a0808
                      at /Users/gavrilikhin_d/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rug-1.24.0/src/
      rational/big.rs:3029
         7: 0x107012940 - rug::rational::traits::fmt_radix::h3e8468e3de22ca6c
                      at /Users/gavrilikhin_d/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rug-1.24.0/src/
      rational/traits.rs:323
         8: 0x107012890 - rug::rational::traits::<impl core::fmt::Display for
      rug::rational::big::Rational>::fmt::hfc11d647529e16d9
                      at /Users/gavrilikhin_d/.cargo/registry/src/index.crates.io-6f17d22bba15001f/rug-1.24.0/src/
      rational/traits.rs:90
         9: 0x1070711d0 - core::fmt::rt::Argument::fmt::h6aca2d3b1141d3cd
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/fmt/rt.rs:142
                       - core::fmt::write::ha84fc24b2f574968
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/fmt/mod.rs:1153
        10: 0x107050acc - std::io::Write::write_fmt::hba00957b8741c727
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/std/src/io/mod.rs:1843
                       - <&std::io::stdio::Stdout as std::io::Write>::write_fmt::he852fd30bd553d53
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/std/src/io/stdio.rs:776
        11: 0x107051ce0 - <std::io::stdio::Stdout as std::io::Write>::write_fmt::h4920aa5ec1e68855
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/std/src/io/stdio.rs:750
                       - std::io::stdio::print_to::hc1afb2c0faad1893
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/std/src/io/stdio.rs:1087
                       - std::io::stdio::_print::hf81b4c1e8d155c26
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/std/src/io/stdio.rs:1164
        12: 0x104b39914 - ppl::main::h082e7793de8f4d11
                      at /Users/gavrilikhin_d/Code/ppl/src/main.rs:128
        13: 0x104b30f6c - core::ops::function::FnOnce::call_once::hcdcaeb2df177fde8
                      at /rustc/c9f8f3438a8134a413aa5d4903e0196e44e37bbc/library/core/src/ops/function.rs:250
  help: set the `RUST_BACKTRACE=1` environment variable to display a backtrace.