resolve almost all as_conversions lints

may need further opinion from others on these

Signed-off-by: strawberry <strawberry@puppygock.gay>

Cargo.toml

@@ -626,6 +626,7 @@ trivially_copy_pass_by_ref = "warn"
 wildcard_imports = "warn"
 checked_conversions = "warn"
 #integer_arithmetic = "warn"
+#as_conversions = "warn"
 
 # some sadness
 missing_errors_doc = "allow"
@@ -646,7 +647,6 @@ map_err_ignore = "allow"
 missing_docs_in_private_items = "allow"
 multiple_inherent_impl = "allow"
 error_impl_error = "allow"
-as_conversions = "allow"
 string_add = "allow"
 string_slice = "allow"
 ref_patterns = "allow"