chore: fix typos and delete repeat words

chain/epoch-manager/src/tests/mod.rs

@@ -3833,7 +3833,7 @@ fn test_get_shard_uids_pending_resharding_double_different() {
     assert_eq!(shard_uids, vec![s0, s1].into_iter().collect::<HashSet<_>>());
 }
 
-/// Test that that only one shard is pending resharding during a double
+/// Test that only one shard is pending resharding during a double
 /// resharding where the same shard is reshareded twice.
 #[test]
 fn test_get_shard_uids_pending_resharding_double_same() {

chain/rosetta-rpc/src/models.rs

@@ -376,7 +376,7 @@ pub(crate) struct ConstructionPayloadsRequest {
 
 /// ConstructionTransactionResponse is returned by `/construction/payloads`. It
 /// contains an unsigned transaction blob (that is usually needed to construct
-/// the a network transaction from a collection of signatures) and an
+/// a network transaction from a collection of signatures) and an
 /// array of payloads that must be signed by the caller.
 #[derive(Debug, Clone, PartialEq, serde::Serialize, serde::Deserialize, Apiv2Schema)]
 pub(crate) struct ConstructionPayloadsResponse {

core/parameters/src/parameter_table.rs

@@ -584,7 +584,7 @@ mod tests {
         check_parameter_table("", &[], []);
     }
 
-    /// Reading reading a normally formatted base parameter file with no diffs
+    /// Reading a normally formatted base parameter file with no diffs
     #[test]
     fn test_basic_parameter_table() {
         check_parameter_table(
@@ -605,7 +605,7 @@ mod tests {
         );
     }
 
-    /// Reading reading a slightly funky formatted base parameter file with no diffs
+    /// Reading a slightly funky formatted base parameter file with no diffs
     #[test]
     fn test_basic_parameter_table_weird_syntax() {
         check_parameter_table(

core/store/src/db/rocksdb/snapshot.rs

@@ -13,7 +13,7 @@ use crate::Temperature;
 /// The usage of the type is to create a checkpoint before a risky database
 /// operation and then [`Snapshot::remove`] it when the operation finishes
 /// successfully.  In that scenario, the checkpoint will be gracefully deleted
-/// from the file system.  On the other hand, if the operation fails an the
+/// from the file system.  On the other hand, if the operation fails and the
 /// checkpoint is not deleted, this type’s Drop implementation will log
 /// informational messages pointing where the snapshot resides and how to
 /// recover data from it.

nightly/README.md

@@ -58,7 +58,7 @@ For example:
 
 (Currently the package name is ignored but it may change in the future
 so make sure it’s set correctly).  The path to the test function must
-match exactly an the test binary is called with `--exact` argument.
+match exactly the test binary is called with `--exact` argument.
 
 ### Other arguments
 

runtime/near-vm/compiler/src/compiler.rs

@@ -75,7 +75,7 @@ where
 pub trait Compiler: Send {
     /// Validates a module.
     ///
-    /// It returns the a succesful Result in case is valid, `CompileError` in case is not.
+    /// It returns a succesful Result in case is valid, `CompileError` in case is not.
     fn validate_module<'data>(
         &self,
         features: &Features,

runtime/runtime/src/lib.rs

@@ -291,7 +291,7 @@ impl Runtime {
 
     /// Takes one signed transaction, verifies it and converts it to a receipt.
     ///
-    /// Add the produced receipt receipt either to the new local receipts if the signer is the same
+    /// Add the produced receipt either to the new local receipts if the signer is the same
     /// as receiver or to the new outgoing receipts.
     ///
     /// When transaction is converted to a receipt, the account is charged for the full value of