Update the minimal required Usage: rustc [OPTIONS] INPUT

Options:
    -h, --help          Display this message
        --cfg SPEC      Configure the compilation environment.
                        SPEC supports the syntax `NAME[="VALUE"]`.
        --check-cfg SPEC
                        Provide list of expected cfgs for checking
    -L [KIND=]PATH      Add a directory to the library search path. The
                        optional KIND can be one of dependency, crate, native,
                        framework, or all (the default).
    -l [KIND[:MODIFIERS]=]NAME[:RENAME]
                        Link the generated crate(s) to the specified native
                        library NAME. The optional KIND can be one of
                        static, framework, or dylib (the default).
                        Optional comma separated MODIFIERS
                        (bundle|verbatim|whole-archive|as-needed)
                        may be specified each with a prefix of either '+' to
                        enable or '-' to disable.
        --crate-type [bin|lib|rlib|dylib|cdylib|staticlib|proc-macro]
                        Comma separated list of types of crates
                        for the compiler to emit
        --crate-name NAME
                        Specify the name of the crate being built
        --edition 2015|2018|2021|2024
                        Specify which edition of the compiler to use when
                        compiling code. The default is 2015 and the latest
                        stable edition is 2021.
        --emit [asm|llvm-bc|llvm-ir|obj|metadata|link|dep-info|mir]
                        Comma separated list of types of output for the
                        compiler to emit
        --print [crate-name|file-names|sysroot|target-libdir|cfg|check-cfg|calling-conventions|target-list|target-cpus|target-features|relocation-models|code-models|tls-models|target-spec-json|all-target-specs-json|native-static-libs|stack-protector-strategies|link-args|deployment-target]
                        Compiler information to print on stdout
    -g                  Equivalent to -C debuginfo=2
    -O                  Equivalent to -C opt-level=2
    -o FILENAME         Write output to <filename>
        --out-dir DIR   Write output to compiler-chosen filename in <dir>
        --explain OPT   Provide a detailed explanation of an error message
        --test          Build a test harness
        --target TARGET Target triple for which the code is compiled
    -A, --allow LINT    Set lint allowed
    -W, --warn LINT     Set lint warnings
        --force-warn LINT
                        Set lint force-warn
    -D, --deny LINT     Set lint denied
    -F, --forbid LINT   Set lint forbidden
        --cap-lints LEVEL
                        Set the most restrictive lint level. More restrictive
                        lints are capped at this level
    -C, --codegen OPT[=VALUE]
                        Set a codegen option
    -V, --version       Print version info and exit
    -v, --verbose       Use verbose output

Additional help:
    -C help             Print codegen options
    -W help             Print 'lint' options and default settings
    -Z help             Print unstable compiler options
    --help -v           Print the full set of options rustc accepts version in the root README.md (issue #168)

README.md

@@ -34,7 +34,7 @@ sudo pacman -S songrec
 songrec
 ```
 
-Using apt with PPA (Ubuntu, supported 18.04, 20.04, 22.04, 23.04, 23.10):
+Using apt with PPA (Ubuntu, supported 20.04, 22.04, 24.04, 24.10, and older versions of Songrec are available for older releases):
 
 ```bash
 wget -qO- 'http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x6888550b2fc77d09' | sudo tee /etc/apt/trusted.gpg.d/songrec.asc
@@ -74,7 +74,7 @@ Note: You may remove dependencies over GTK+, Pulseaudio/PipeWire's libpulse or D
 
 ### Installing Rust
 
-First, you need to [install the Rust compiler and package manager](https://www.rust-lang.org/tools/install). It has been observed to work with `rustc` since version 1.43.0.
+First, you need to [install the Rust compiler and package manager](https://www.rust-lang.org/tools/install). The current minimal `rustc` required version should be at least version 1.70.
 
 You can either install Rust from the repositories, for example using Ubuntu/Debian: