Cargo: error: failed to select a version for the requirement `serde = "^2.0"` — candidate versions found which didn't match: 1.0.197

E0004: non-exhaustive patterns Rust: error[E0004]: non-exhaustive patterns: `None` not covered E0015: cannot call non-const function in constants Rust: error[E0015]: cannot call non-const function `String::from` in constants E0038: the trait cannot be made into an object Rust: error[E0038]: the trait `Shape` cannot be made into an object (not dyn compatible) E0061: this function takes N arguments but M were supplied Rust: error[E0061]: this function takes 2 arguments but 1 argument was supplied E0063: missing field in initializer of struct Rust: error[E0063]: missing field `age` in initializer of `User` E0106: missing lifetime specifier Rust: error[E0106]: missing lifetime specifier — this function's return type contains a borrowed value, but the signature does not say which one of `x`'s 2 lifetimes it is borrowed from E0133: call to unsafe function requires unsafe block Rust: error[E0133]: call to unsafe function `foo` is unsafe and requires unsafe function or block E0271: type mismatch resolving associated type Rust: error[E0271]: type mismatch resolving `<impl Iterator as Iterator>::Item == i32` E0277: the trait bound is not satisfied Rust: error[E0277]: the trait bound `Foo: Display` is not satisfied / `Rc<RefCell<T>>` cannot be sent between threads safely E0282: type annotations needed Rust: error[E0282]: type annotations needed for `Vec<_>` / consider giving `x` an explicit type E0369: binary operation cannot be applied to type Rust: error[E0369]: binary operation `+` cannot be applied to type `Foo` / cannot add `&str` to `&str` E0373: closure may outlive the current function Rust: error[E0373]: closure may outlive the current function, but it borrows `v`, which is owned by the current function E0381: used binding isn't initialized Rust: error[E0381]: used binding `x` is possibly-uninitialized E0384: cannot assign twice to immutable variable Rust: error[E0384]: cannot assign twice to immutable variable `x` E0425: cannot find value in this scope Rust: error[E0425]: cannot find value `x` in this scope E0432: unresolved import Rust: error[E0432]: unresolved import `crate::utils` — maybe a missing crate `utils`? E0433: failed to resolve: use of undeclared type or module Rust: error[E0433]: failed to resolve: use of undeclared type `HashMap` E0507: cannot move out of a shared reference / index Rust: error[E0507]: cannot move out of `self.name` which is behind a shared reference E0603: module/function/struct is private Rust: error[E0603]: function `helper` is private E0608: cannot index into a value of type Rust: error[E0608]: cannot index into a value of type `HashSet<i32>` / `String` cannot be indexed by `{integer}` E0616: field of struct is private Rust: error[E0616]: field `name` of struct `User` is private E0658: use of unstable library feature Rust: error[E0658]: use of unstable library feature `let_chains` / `#![feature]` may not be used on the stable release channel E0716: temporary value dropped while borrowed Rust: error[E0716]: temporary value dropped while borrowed — creates a temporary value which is freed while still in use E0728: await is only allowed inside async functions and blocks Rust: error[E0728]: `await` is only allowed inside `async` functions and blocks error: linker `cc` not found Rust: error: linker `cc` not found — note: No such file or directory (os error 2) error: toolchain 'stable' is not installed / override toolchain not found rustup: error: toolchain 'nightly-x86_64-unknown-linux-gnu' is not installed / error: no override and no default toolchain set failed to run custom build command for openssl-sys Cargo: error: failed to run custom build command for `openssl-sys v0.9.99` — Could not find directory of OpenSSL installation / pkg-config not found feature edition2024 is required / Cargo.lock version too new Cargo: error: failed to parse manifest — feature `edition2024` is required / lock file version 4 requires `-Znext-lockfile-bump` held broken packages Unmet dependencies / E: Unable to correct problems, you have held broken packages package requires rustc 1.xx or newer Cargo: error: package `home v0.5.9` cannot be built because it requires rustc 1.81 or newer, while the currently active rustc version is 1.78.0 there is no reactor running, must be called from the context of a Tokio 1.x runtime Rust: thread 'main' panicked: there is no reactor running, must be called from the context of a Tokio 1.x runtime