diff options
| -rw-r--r-- | compiler/rustc_error_codes/src/error_codes.rs | 2 | ||||
| -rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0514.md | 33 |
2 files changed, 34 insertions, 1 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes.rs b/compiler/rustc_error_codes/src/error_codes.rs index 68eac479f9e..5a1670f06fc 100644 --- a/compiler/rustc_error_codes/src/error_codes.rs +++ b/compiler/rustc_error_codes/src/error_codes.rs @@ -276,6 +276,7 @@ E0509: include_str!("./error_codes/E0509.md"), E0510: include_str!("./error_codes/E0510.md"), E0511: include_str!("./error_codes/E0511.md"), E0512: include_str!("./error_codes/E0512.md"), +E0514: include_str!("./error_codes/E0514.md"), E0515: include_str!("./error_codes/E0515.md"), E0516: include_str!("./error_codes/E0516.md"), E0517: include_str!("./error_codes/E0517.md"), @@ -616,7 +617,6 @@ E0791: include_str!("./error_codes/E0791.md"), // E0488, // lifetime of variable does not enclose its declaration // E0489, // type/lifetime parameter not in scope here E0490, // a value of type `..` is borrowed for too long - E0514, // metadata version mismatch E0523, // two dependencies have same (crate-name, disambiguator) but different SVH // E0526, // shuffle indices are not constant // E0540, // multiple rustc_deprecated attributes diff --git a/compiler/rustc_error_codes/src/error_codes/E0514.md b/compiler/rustc_error_codes/src/error_codes/E0514.md new file mode 100644 index 00000000000..ce2bbc5c505 --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0514.md @@ -0,0 +1,33 @@ +Dependency compiled with different version of `rustc`. + +Example of erroneous code: + +`a.rs` +```ignore (cannot-link-with-other-tests) +// compiled with stable `rustc` + +#[crate_type = "lib"] +``` + +`b.rs` +```ignore (cannot-link-with-other-tests) +// compiled with nightly `rustc` + +#[crate_type = "lib"] + +extern crate a; // error: found crate `a` compiled by an incompatible version + // of rustc +``` + +This error is caused when the version of `rustc` used to compile a crate, as +stored in the binary's metadata, differs from the version of one of its +dependencies. Many parts of Rust binaries are considered unstable. For +instance, the Rust ABI is not stable between compiler versions. This means that +the compiler cannot be sure about *how* to call a function between compiler +versions, and therefore this error occurs. + +This error can be fixed by: + * Using [Cargo](../cargo/index.html), the Rust package manager and + [Rustup](https://rust-lang.github.io/rustup/), the Rust toolchain installer, + automatically fixing this issue. + * Recompiling the crates with a uniform `rustc` version. |