Switch to newer fallible_collections.

Compiler updates made older version break.

Author: gz

kernel/Cargo.toml

@@ -46,7 +46,7 @@ bit_field = "0.10"
 crossbeam-queue = { version = "0.3", default-features = false, features = ["alloc"] }
 arrayvec = { version = "0.7.0", default-features = false }
 memoffset = { version = "0.6.5", features = ["unstable_const"] }
-fallible_collections = { git = "https://github.com/gz/fallible_collections.git", branch = "allocator_api", features = ["unstable", "rust_1_57"] }
+fallible_collections = { path = "../../fallible_collections", features = ["unstable", "rust_1_57"] }
 # Should be optional (but currently aren't, TODO)
 gimli = { version = "0.26", default-features = false, features = ["read", "endian-reader"] }
 gdbstub = { git = "https://github.com/daniel5151/gdbstub.git", branch = "dev/0.6", default-features = false, features = ["alloc"] }

kernel/src/error.rs

@@ -195,6 +195,12 @@ impl From<alloc::collections::TryReserveError> for KError {
     }
 }
 
+impl From<fallible_collections::TryReserveError> for KError {
+    fn from(_e: fallible_collections::TryReserveError) -> Self {
+        KError::OutOfMemory
+    }
+}
+
 impl From<hashbrown::TryReserveError> for KError {
     fn from(_e: hashbrown::TryReserveError) -> Self {
         KError::OutOfMemory