planned

anonymous-lifetime
arc
async
borrow-trait
btreemap
casting
cell-and-refcell
closures
conditionals
const-and-static
count-and-sum
deref-coercion
derive
designing-custom-traits
enums
explicit-return
external-crates
external-traits-as-bounds
format-macro
from-into-iterator
futures
generics
hashset
higher-order-functions
if-while-let
impl-blocks
implementing-traits
iterator-usage
lazy-evaluation
lifetimes
logical-operators
macros-declarative
macros-procedural
map-and-filter
match-advanced
methods
move-semantics
mutex
newtype-pattern
numeric-traits
option
overflow-and-underflow
ranges
rc
result
rwlock
scopes-and-expressions
shadowing
slices
static-lifetime
std-thread
total-ordering
turbofish
typedefs
unsafe
use
variable-assignment
visibility