2 files changed, 54 insertions, 26 deletions

diff --git a/docs/user/generated_config.adoc b/docs/user/generated_config.adoc
index e0ee35b4e..e28423e99 100644
--- a/docs/user/generated_config.adoc
+++ b/docs/user/generated_config.adoc
@@ -147,6 +147,12 @@ have more false positives than usual.
 --
 List of rust-analyzer diagnostics to disable.
 --
+[[rust-analyzer.diagnostics.remapPrefix]]rust-analyzer.diagnostics.remapPrefix (default: `{}`)::
++
+--
+Map of prefixes to be substituted when parsing diagnostic file paths.
+This should be the reverse mapping of what is passed to `rustc` as `--remap-path-prefix`.
+--
 [[rust-analyzer.diagnostics.warningsAsHint]]rust-analyzer.diagnostics.warningsAsHint (default: `[]`)::
 +
 --
diff --git a/docs/user/manual.adoc b/docs/user/manual.adoc
index b86e91772..54195adb7 100644
--- a/docs/user/manual.adoc
+++ b/docs/user/manual.adoc
@@ -429,24 +429,32 @@ However, if you use some other build system, you'll have to describe the structu
 [source,TypeScript]
 ----
 interface JsonProject {
-    /// Path to the directory with *source code* of sysroot crates.
+    /// Path to the directory with *source code* of
+    /// sysroot crates.
+    ///
+    /// It should point to the directory where std,
+    /// core, and friends can be found:
     ///
-    /// It should point to the directory where std, core, and friends can be found:
     /// https://github.com/rust-lang/rust/tree/master/library.
     ///
-    /// If provided, rust-analyzer automatically adds dependencies on sysroot
-    /// crates. Conversely, if you omit this path, you can specify sysroot
-    /// dependencies yourself and, for example, have several different "sysroots" in
-    /// one graph of crates.
+    /// If provided, rust-analyzer automatically adds
+    /// dependencies on sysroot crates. Conversely,
+    /// if you omit this path, you can specify sysroot
+    /// dependencies yourself and, for example, have
+    /// several different "sysroots" in one graph of
+    /// crates.
     sysroot_src?: string;
-    /// The set of crates comprising the current project.
-    /// Must include all transitive dependencies as well as sysroot crate (libstd, libcore and such).
+    /// The set of crates comprising the current
+    /// project. Must include all transitive
+    /// dependencies as well as sysroot crate (libstd,
+    /// libcore and such).
     crates: Crate[];
 }
 
 interface Crate {
-    /// Optional crate name used for display purposes, without affecting semantics.
-    /// See the `deps` key for semantically-significant crate names.
+    /// Optional crate name used for display purposes,
+    /// without affecting semantics. See the `deps`
+    /// key for semantically-significant crate names.
     display_name?: string;
     /// Path to the root module of the crate.
     root_module: string;
@@ -454,45 +462,59 @@ interface Crate {
     edition: "2015" | "2018" | "2021";
     /// Dependencies
     deps: Dep[];
-    /// Should this crate be treated as a member of current "workspace".
+    /// Should this crate be treated as a member of
+    /// current "workspace".
     ///
-    /// By default, inferred from the `root_module` (members are the crates which reside
-    /// inside the directory opened in the editor).
+    /// By default, inferred from the `root_module`
+    /// (members are the crates which reside inside
+    /// the directory opened in the editor).
     ///
-    /// Set this to `false` for things like standard library and 3rd party crates to
-    /// enable performance optimizations (rust-analyzer assumes that non-member crates
-    /// don't change).
+    /// Set this to `false` for things like standard
+    /// library and 3rd party crates to enable
+    /// performance optimizations (rust-analyzer
+    /// assumes that non-member crates don't change).
     is_workspace_member?: boolean;
-    /// Optionally specify the (super)set of `.rs` files comprising this crate.
+    /// Optionally specify the (super)set of `.rs`
+    /// files comprising this crate.
     ///
-    /// By default, rust-analyzer assumes that only files under `root_module.parent` can belong to a crate.
-    /// `include_dirs` are included recursively, unless a subdirectory is in `exclude_dirs`.
+    /// By default, rust-analyzer assumes that only
+    /// files under `root_module.parent` can belong
+    /// to a crate. `include_dirs` are included
+    /// recursively, unless a subdirectory is in
+    /// `exclude_dirs`.
     ///
     /// Different crates can share the same `source`.
     ///
-    /// If two crates share an `.rs` file in common, they *must* have the same `source`.
-    /// rust-analyzer assumes that files from one source can't refer to files in another source.
+    /// If two crates share an `.rs` file in common,
+    /// they *must* have the same `source`.
+    /// rust-analyzer assumes that files from one
+    /// source can't refer to files in another source.
     source?: {
         include_dirs: string[],
         exclude_dirs: string[],
     },
-    /// The set of cfgs activated for a given crate, like `["unix", "feature=\"foo\"", "feature=\"bar\""]`.
+    /// The set of cfgs activated for a given crate, like
+    /// `["unix", "feature=\"foo\"", "feature=\"bar\""]`.
     cfg: string[];
     /// Target triple for this Crate.
     ///
-    /// Used when running `rustc --print cfg` to get target-specific cfgs.
+    /// Used when running `rustc --print cfg`
+    /// to get target-specific cfgs.
     target?: string;
-    /// Environment variables, used for the `env!` macro
+    /// Environment variables, used for
+    /// the `env!` macro
     env: : { [key: string]: string; },
 
-    /// For proc-macro crates, path to compiles proc-macro (.so file).
+    /// For proc-macro crates, path to compiled
+    /// proc-macro (.so file).
     proc_macro_dylib_path?: string;
 }
 
 interface Dep {
     /// Index of a crate in the `crates` array.
     crate: number,
-    /// Name as should appear in the (implicit) `extern crate name` declaration.
+    /// Name as should appear in the (implicit)
+    /// `extern crate name` declaration.
     name: string,
 }
 ----