Fix typos found by codespell.

src/ci/docker/scripts/musl.sh

@@ -32,7 +32,7 @@ shift
 
 export CFLAGS="-fPIC $CFLAGS"
 
-# FIXME: remove the patch when upate to 1.1.20
+# FIXME: remove the patch when updating to 1.1.20
 MUSL=musl-1.1.19
 
 # may have been downloaded in a previous run

src/doc/index.md

@@ -34,7 +34,7 @@ minimum. It also includes exercises!
 
 # Use Rust
 
-Once you've gotten familliar with the language, these resources can help you
+Once you've gotten familiar with the language, these resources can help you
 when you're actually using it day-to-day.
 
 ## The Standard Library

src/doc/rustc/src/codegen-options/index.md

@@ -153,7 +153,7 @@ This option allows you to put extra data in each output filename.
 This flag lets you control how many threads are used when doing
 code generation.
 
-Increasing paralellism may speed up compile times, but may also
+Increasing parallelism may speed up compile times, but may also
 produce slower code.
 
 ## remark

src/doc/rustc/src/lints/listing/deny-by-default.md

@@ -56,7 +56,7 @@ mod m {
     pub struct S(u8);
     
     fn f() {
-        // this is trying to use S from the 'use' line, but becuase the `u8` is
+        // this is trying to use S from the 'use' line, but because the `u8` is
         // not pub, it is private
         ::S;
     }
@@ -103,7 +103,7 @@ This warning can always be fixed by removing the unused pattern in the
 
 ## mutable-transmutes
 
-This lint catches transmuting from `&T` to `&mut T` becuase it is undefined
+This lint catches transmuting from `&T` to `&mut T` because it is undefined
 behavior. Some example code that triggers this lint:
 
 ```rust,ignore

src/doc/rustdoc/src/unstable-features.md

@@ -1,6 +1,6 @@
 # Unstable features
 
-Rustdoc is under active developement, and like the Rust compiler, some features are only available
+Rustdoc is under active development, and like the Rust compiler, some features are only available
 on the nightly releases. Some of these are new and need some more testing before they're able to get
 released to the world at large, and some of them are tied to features in the Rust compiler that are
 themselves unstable. Several features here require a matching `#![feature(...)]` attribute to

src/doc/unstable-book/src/language-features/infer-outlives-requirements.md

@@ -6,12 +6,12 @@ The tracking issue for this feature is: [#44493]
 
 ------------------------
 The `infer_outlives_requirements` feature indicates that certain
-outlives requirements can be infered by the compiler rather than
+outlives requirements can be inferred by the compiler rather than
 stating them explicitly.
 
 For example, currently generic struct definitions that contain
 references, require where-clauses of the form T: 'a. By using
-this feature the outlives predicates will be infered, although
+this feature the outlives predicates will be inferred, although
 they may still be written explicitly.
 
 ```rust,ignore (pseudo-Rust)

src/doc/unstable-book/src/language-features/infer-static-outlives-requirements.md

@@ -6,15 +6,15 @@ The tracking issue for this feature is: [#44493]
 
 ------------------------
 The `infer_static_outlives_requirements` feature indicates that certain
-`'static` outlives requirements can be infered by the compiler rather than
+`'static` outlives requirements can be inferred by the compiler rather than
 stating them explicitly.
 
 Note: It is an accompanying feature to `infer_outlives_requirements`,
 which must be enabled to infer outlives requirements.
 
 For example, currently generic struct definitions that contain
 references, require where-clauses of the form T: 'static. By using
-this feature the outlives predicates will be infered, although
+this feature the outlives predicates will be inferred, although
 they may still be written explicitly.
 
 ```rust,ignore (pseudo-Rust)

src/liballoc/raw_vec.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![unstable(feature = "raw_vec_internals", reason = "implemention detail", issue = "0")]
+#![unstable(feature = "raw_vec_internals", reason = "implementation detail", issue = "0")]
 #![doc(hidden)]
 
 use core::cmp;

src/libcore/future/future_obj.rs

@@ -27,7 +27,7 @@ use task::{Context, Poll};
 /// - The `Future` trait is currently not object safe: The `Future::poll`
 ///   method makes uses the arbitrary self types feature and traits in which
 ///   this feature is used are currently not object safe due to current compiler
-///   limitations. (See tracking issue for arbitray self types for more
+///   limitations. (See tracking issue for arbitrary self types for more
 ///   information #44874)
 pub struct LocalFutureObj<'a, T> {
     ptr: *mut (),
@@ -102,7 +102,7 @@ impl<'a, T> Drop for LocalFutureObj<'a, T> {
 /// - The `Future` trait is currently not object safe: The `Future::poll`
 ///   method makes uses the arbitrary self types feature and traits in which
 ///   this feature is used are currently not object safe due to current compiler
-///   limitations. (See tracking issue for arbitray self types for more
+///   limitations. (See tracking issue for arbitrary self types for more
 ///   information #44874)
 pub struct FutureObj<'a, T>(LocalFutureObj<'a, T>);
 

src/libcore/ptr.rs

@@ -2291,7 +2291,7 @@ impl<T: ?Sized> *mut T {
 ///
 /// If we ever decide to make it possible to call the intrinsic with `a` that is not a
 /// power-of-two, it will probably be more prudent to just change to a naive implementation rather
-/// than trying to adapt this to accomodate that change.
+/// than trying to adapt this to accommodate that change.
 ///
 /// Any questions go to @nagisa.
 #[lang="align_offset"]

src/libcore/slice/mod.rs

@@ -1680,7 +1680,7 @@ impl<T> [T] {
         }
     }
 
-    /// Function to calculate lenghts of the middle and trailing slice for `align_to{,_mut}`.
+    /// Function to calculate lengths of the middle and trailing slice for `align_to{,_mut}`.
     fn align_to_offsets<U>(&self) -> (usize, usize) {
         // What we gonna do about `rest` is figure out what multiple of `U`s we can put in a
         // lowest number of `T`s. And how many `T`s we need for each such "multiple".
@@ -1740,7 +1740,7 @@ impl<T> [T] {
         (us_len, ts_len)
     }
 
-    /// Transmute the slice to a slice of another type, ensuring aligment of the types is
+    /// Transmute the slice to a slice of another type, ensuring alignment of the types is
     /// maintained.
     ///
     /// This method splits the slice into three distinct slices: prefix, correctly aligned middle
@@ -1792,7 +1792,7 @@ impl<T> [T] {
         }
     }
 
-    /// Transmute the slice to a slice of another type, ensuring aligment of the types is
+    /// Transmute the slice to a slice of another type, ensuring alignment of the types is
     /// maintained.
     ///
     /// This method splits the slice into three distinct slices: prefix, correctly aligned middle

src/libfmt_macros/lib.rs

@@ -154,7 +154,7 @@ pub struct Parser<'a> {
     style: Option<usize>,
     /// How many newlines have been seen in the string so far, to adjust the error spans
     seen_newlines: usize,
-    /// Start and end byte offset of every successfuly parsed argument
+    /// Start and end byte offset of every successfully parsed argument
     pub arg_places: Vec<(usize, usize)>,
 }
 

src/libpanic_unwind/seh.rs

@@ -142,7 +142,7 @@ mod imp {
 
 #[repr(C)]
 pub struct _ThrowInfo {
-    pub attribues: c_uint,
+    pub attributes: c_uint,
     pub pnfnUnwind: imp::ptr_t,
     pub pForwardCompat: imp::ptr_t,
     pub pCatchableTypeArray: imp::ptr_t,
@@ -178,7 +178,7 @@ pub struct _TypeDescriptor {
 }
 
 static mut THROW_INFO: _ThrowInfo = _ThrowInfo {
-    attribues: 0,
+    attributes: 0,
     pnfnUnwind: ptr!(0),
     pForwardCompat: ptr!(0),
     pCatchableTypeArray: ptr!(0),

src/libproc_macro/lib.rs

@@ -12,7 +12,7 @@
 //!
 //! This library, provided by the standard distribution, provides the types
 //! consumed in the interfaces of procedurally defined macro definitions such as
-//! function-like macros `#[proc_macro]`, macro attribures `#[proc_macro_attribute]` and
+//! function-like macros `#[proc_macro]`, macro attributes `#[proc_macro_attribute]` and
 //! custom derive attributes`#[proc_macro_derive]`.
 //!
 //! Note that this crate is intentionally bare-bones currently.

src/librustc/infer/canonical/mod.rs

@@ -49,7 +49,7 @@ pub mod query_result;
 mod substitute;
 
 /// A "canonicalized" type `V` is one where all free inference
-/// variables have been rewriten to "canonical vars". These are
+/// variables have been rewritten to "canonical vars". These are
 /// numbered starting from 0 in order of first appearance.
 #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, RustcDecodable, RustcEncodable)]
 pub struct Canonical<'gcx, V> {

src/librustc/infer/error_reporting/mod.rs

@@ -561,7 +561,7 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
             value.push_highlighted("<");
         }
 
-        // Output the lifetimes fot the first type
+        // Output the lifetimes for the first type
         let lifetimes = sub.regions()
             .map(|lifetime| {
                 let s = lifetime.to_string();

src/librustc/infer/higher_ranked/mod.rs

@@ -527,7 +527,7 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
          * we're not careful, it will succeed.
          *
          * The reason is that when we walk through the subtyping
-         * algorith, we begin by replacing `'a` with a skolemized
+         * algorithm, we begin by replacing `'a` with a skolemized
          * variable `'1`. We then have `fn(_#0t) <: fn(&'1 int)`. This
          * can be made true by unifying `_#0t` with `&'1 int`. In the
          * process, we create a fresh variable for the skolemized

src/librustc/mir/interpret/value.rs

@@ -68,7 +68,7 @@ impl<'tcx> ConstValue<'tcx> {
 
 /// A `Value` represents a single self-contained Rust value.
 ///
-/// A `Value` can either refer to a block of memory inside an allocation (`ByRef`) or to a primitve
+/// A `Value` can either refer to a block of memory inside an allocation (`ByRef`) or to a primitive
 /// value held directly, outside of any allocation (`Scalar`).  For `ByRef`-values, we remember
 /// whether the pointer is supposed to be aligned or not (also see Place).
 ///

src/librustc/mir/mod.rs

@@ -927,11 +927,11 @@ pub enum TerminatorKind<'tcx> {
     ///   Drop(P, goto BB1, unwind BB2)
     /// }
     /// BB1 {
-    ///   // P is now unitialized
+    ///   // P is now uninitialized
     ///   P <- V
     /// }
     /// BB2 {
-    ///   // P is now unitialized -- its dtor panicked
+    ///   // P is now uninitialized -- its dtor panicked
     ///   P <- V
     /// }
     /// ```

src/librustc/mir/traversal.rs

@@ -171,7 +171,7 @@ impl<'a, 'tcx> Postorder<'a, 'tcx> {
         //      (A, [C])]
         //
         // Now that the top of the stack has no successors we can traverse, each item will
-        // be popped off during iteration until we get back to `A`. This yeilds [E, D, B].
+        // be popped off during iteration until we get back to `A`. This yields [E, D, B].
         //
         // When we yield `B` and call `traverse_successor`, we push `C` to the stack, but
         // since we've already visited `E`, that child isn't added to the stack. The last

src/librustc/traits/auto_trait.rs

@@ -264,12 +264,12 @@ impl<'a, 'tcx> AutoTraitFinder<'a, 'tcx> {
     // The core logic responsible for computing the bounds for our synthesized impl.
     //
     // To calculate the bounds, we call SelectionContext.select in a loop. Like FulfillmentContext,
-    // we recursively select the nested obligations of predicates we encounter. However, whenver we
+    // we recursively select the nested obligations of predicates we encounter. However, whenever we
     // encounter an UnimplementedError involving a type parameter, we add it to our ParamEnv. Since
     // our goal is to determine when a particular type implements an auto trait, Unimplemented
     // errors tell us what conditions need to be met.
     //
-    // This method ends up working somewhat similary to FulfillmentContext, but with a few key
+    // This method ends up working somewhat similarly to FulfillmentContext, but with a few key
     // differences. FulfillmentContext works under the assumption that it's dealing with concrete
     // user code. According, it considers all possible ways that a Predicate could be met - which
     // isn't always what we want for a synthesized impl. For example, given the predicate 'T:
@@ -289,11 +289,11 @@ impl<'a, 'tcx> AutoTraitFinder<'a, 'tcx> {
     // we'll pick up any nested bounds, without ever inferring that 'T: IntoIterator' needs to
     // hold.
     //
-    // One additonal consideration is supertrait bounds. Normally, a ParamEnv is only ever
+    // One additional consideration is supertrait bounds. Normally, a ParamEnv is only ever
     // consutrcted once for a given type. As part of the construction process, the ParamEnv will
     // have any supertrait bounds normalized - e.g. if we have a type 'struct Foo<T: Copy>', the
     // ParamEnv will contain 'T: Copy' and 'T: Clone', since 'Copy: Clone'. When we construct our
-    // own ParamEnv, we need to do this outselves, through traits::elaborate_predicates, or else
+    // own ParamEnv, we need to do this ourselves, through traits::elaborate_predicates, or else
     // SelectionContext will choke on the missing predicates. However, this should never show up in
     // the final synthesized generics: we don't want our generated docs page to contain something
     // like 'T: Copy + Clone', as that's redundant. Therefore, we keep track of a separate

src/librustc/traits/error_reporting.rs

@@ -652,7 +652,7 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
                         }
 
                         // If this error is due to `!: Trait` not implemented but `(): Trait` is
-                        // implemented, and fallback has occured, then it could be due to a
+                        // implemented, and fallback has occurred, then it could be due to a
                         // variable that used to fallback to `()` now falling back to `!`. Issue a
                         // note informing about the change in behaviour.
                         if trait_predicate.skip_binder().self_ty().is_never()

src/librustc/traits/query/dropck_outlives.rs

@@ -82,7 +82,7 @@ impl<'cx, 'gcx, 'tcx> At<'cx, 'gcx, 'tcx> {
         // Errors and ambiuity in dropck occur in two cases:
         // - unresolved inference variables at the end of typeck
         // - non well-formed types where projections cannot be resolved
-        // Either of these should hvae created an error before.
+        // Either of these should have created an error before.
         tcx.sess
             .delay_span_bug(span, "dtorck encountered internal error");
         return InferOk {

src/librustc/ty/context.rs

@@ -892,7 +892,7 @@ pub struct GlobalCtxt<'tcx> {
 
     pub(crate) queries: query::Queries<'tcx>,
 
-    // Records the free variables refrenced by every closure
+    // Records the free variables referenced by every closure
     // expression. Do not track deps for this, just recompute it from
     // scratch every time.
     freevars: FxHashMap<DefId, Lrc<Vec<hir::Freevar>>>,

src/librustc/ty/mod.rs

@@ -1503,7 +1503,7 @@ impl UniverseIndex {
 
     /// Creates a universe index from the given integer.  Not to be
     /// used lightly lest you pick a bad value. But sometimes we
-    /// convert universe indicies into integers and back for various
+    /// convert universe indices into integers and back for various
     /// reasons.
     pub fn from_u32(index: u32) -> Self {
         UniverseIndex(index)

src/librustc/ty/query/job.rs

@@ -262,7 +262,7 @@ where
         }
     }
 
-    // Visit the explict waiters which use condvars and are resumable
+    // Visit the explicit waiters which use condvars and are resumable
     for (i, waiter) in query.latch.info.lock().waiters.iter().enumerate() {
         if let Some(ref waiter_query) = waiter.query {
             if visit(waiter.span, waiter_query.clone()).is_some() {

src/librustc_codegen_llvm/back/write.rs

@@ -327,7 +327,7 @@ struct AssemblerCommand {
 /// Additional resources used by optimize_and_codegen (not module specific)
 #[derive(Clone)]
 pub struct CodegenContext {
-    // Resouces needed when running LTO
+    // Resources needed when running LTO
     pub time_passes: bool,
     pub lto: Lto,
     pub no_landing_pads: bool,
@@ -595,7 +595,7 @@ unsafe fn optimize(cgcx: &CodegenContext,
                                      -C passes=name-anon-globals to the compiler command line.");
                 } else {
                     bug!("We are using thin LTO buffers without running the NameAnonGlobals pass. \
-                         This will likely cause errors in LLVM and shoud never happen.");
+                         This will likely cause errors in LLVM and should never happen.");
                 }
             }
         }

src/librustc_codegen_llvm/mir/block.rs

@@ -655,7 +655,7 @@ impl FunctionCx<'a, 'll, 'tcx> {
                     llargs.push(b);
                     return;
                 }
-                _ => bug!("codegen_argument: {:?} invalid for pair arugment", op)
+                _ => bug!("codegen_argument: {:?} invalid for pair argument", op)
             }
         }
 

src/librustc_data_structures/sync.rs

@@ -26,7 +26,7 @@
 //!
 //! `MTLock` is a mutex which disappears if cfg!(parallel_queries) is false.
 //!
-//! `MTRef` is a immutable refernce if cfg!(parallel_queries), and an mutable reference otherwise.
+//! `MTRef` is a immutable reference if cfg!(parallel_queries), and an mutable reference otherwise.
 //!
 //! `rustc_erase_owner!` erases a OwningRef owner into Erased or Erased + Send + Sync
 //! depending on the value of cfg!(parallel_queries).
@@ -432,7 +432,7 @@ impl<T> Once<T> {
     /// closures may concurrently be computing a value which the inner value should take.
     /// Only one of these closures are used to actually initialize the value.
     /// If some other closure already set the value, we assert that it our closure computed
-    /// a value equal to the value aready set and then
+    /// a value equal to the value already set and then
     /// we return the value our closure computed wrapped in a `Option`.
     /// If our closure set the value, `None` is returned.
     /// If the value is already initialized, the closure is not called and `None` is returned.

src/librustc_lint/builtin.rs

@@ -888,7 +888,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnconditionalRecursion {
         // NB. this has an edge case with non-returning statements,
         // like `loop {}` or `panic!()`: control flow never reaches
         // the exit node through these, so one can have a function
-        // that never actually calls itselfs but is still picked up by
+        // that never actually calls itself but is still picked up by
         // this lint:
         //
         //     fn f(cond: bool) {

src/librustc_lint/types.rs

@@ -486,7 +486,7 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> {
         // Protect against infinite recursion, for example
         // `struct S(*mut S);`.
         // FIXME: A recursion limit is necessary as well, for irregular
-        // recusive types.
+        // recursive types.
         if !cache.insert(ty) {
             return FfiSafe;
         }

src/librustc_metadata/native_libs.rs

@@ -207,7 +207,7 @@ impl<'a, 'tcx> Collector<'a, 'tcx> {
             }
         }
 
-        // Update kind and, optionally, the name of all native libaries
+        // Update kind and, optionally, the name of all native libraries
         // (there may be more than one) with the specified name.
         for &(ref name, ref new_name, kind) in &self.tcx.sess.opts.libs {
             let mut found = false;

src/librustc_mir/borrow_check/nll/invalidation.rs

@@ -541,7 +541,7 @@ impl<'cg, 'cx, 'tcx, 'gcx> InvalidationGenerator<'cg, 'cx, 'tcx, 'gcx> {
                             // unique or mutable borrows are invalidated by writes.
                             // Reservations count as writes since we need to check
                             // that activating the borrow will be OK
-                            // TOOD(bob_twinkles) is this actually the right thing to do?
+                            // FIXME(bob_twinkles) is this actually the right thing to do?
                             this.generate_invalidates(borrow_index, context.loc);
                         }
                 }