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authorNoah Lev <camelidcamel@gmail.com>2021-10-06 13:01:43 -0700
committerNoah Lev <camelidcamel@gmail.com>2021-10-12 13:10:12 -0700
commitcc6a09009d5129f1221dc0e93c08c84967d1015e (patch)
tree8f549170fc64211ada6978859fc9a229657009c1 /compiler/rustc_error_codes/src
parent2e56b6f98e34edcafe0d7691939c4c33302a1a5c (diff)
downloadrust-cc6a09009d5129f1221dc0e93c08c84967d1015e.tar.gz
rust-cc6a09009d5129f1221dc0e93c08c84967d1015e.zip
Add long explanation for E0464
The test is copied from `src/test/ui/crate-loading/crateresolve1.rs` and
its auxiliary tests. I added it to the `compile_fail` code example check
exemption list since it's hard if not impossible to reproduce this error
in a standalone code example.
Diffstat (limited to 'compiler/rustc_error_codes/src')
-rw-r--r--compiler/rustc_error_codes/src/error_codes.rs2
-rw-r--r--compiler/rustc_error_codes/src/error_codes/E0464.md6
2 files changed, 7 insertions, 1 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes.rs b/compiler/rustc_error_codes/src/error_codes.rs
index 1b4b58314b3..27b2bfbaf47 100644
--- a/compiler/rustc_error_codes/src/error_codes.rs
+++ b/compiler/rustc_error_codes/src/error_codes.rs
@@ -237,6 +237,7 @@ E0455: include_str!("./error_codes/E0455.md"),
 E0458: include_str!("./error_codes/E0458.md"),
 E0459: include_str!("./error_codes/E0459.md"),
 E0463: include_str!("./error_codes/E0463.md"),
+E0464: include_str!("./error_codes/E0464.md"),
 E0466: include_str!("./error_codes/E0466.md"),
 E0468: include_str!("./error_codes/E0468.md"),
 E0469: include_str!("./error_codes/E0469.md"),
@@ -587,7 +588,6 @@ E0785: include_str!("./error_codes/E0785.md"),
     E0460, // found possibly newer version of crate `..`
     E0461, // couldn't find crate `..` with expected target triple ..
     E0462, // found staticlib `..` instead of rlib or dylib
-    E0464, // multiple matching crates for `..`
     E0465, // multiple .. candidates for `..` found
 //  E0467, removed
 //  E0470, removed
diff --git a/compiler/rustc_error_codes/src/error_codes/E0464.md b/compiler/rustc_error_codes/src/error_codes/E0464.md
new file mode 100644
index 00000000000..9108d856c9d
--- /dev/null
+++ b/compiler/rustc_error_codes/src/error_codes/E0464.md
@@ -0,0 +1,6 @@
+The compiler found multiple library files with the requested crate name.
+
+This error can occur in several different cases -- for example, when using
+`extern crate` or passing `--extern` options without crate paths. It can also be
+caused by caching issues with the build directory, in which case `cargo clean`
+may help.