error[E0381]: partially assigned binding `s` isn't fully initialized --> $DIR/issue-21232-partial-init-and-use.rs:97:5 | LL | let s: S; | - binding declared here but left uninitialized LL | s.x = 10; s.y = Box::new(20); | ^^^^^^^^ `s` partially assigned here but it isn't fully initialized | = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit` error[E0381]: partially assigned binding `t` isn't fully initialized --> $DIR/issue-21232-partial-init-and-use.rs:103:5 | LL | let t: T; | - binding declared here but left uninitialized LL | t.0 = 10; t.1 = Box::new(20); | ^^^^^^^^ `t` partially assigned here but it isn't fully initialized | = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit` error[E0382]: assign to part of moved value: `s` --> $DIR/issue-21232-partial-init-and-use.rs:109:5 | LL | let mut s: S = S::new(); drop(s); | ----- - value moved here | | | move occurs because `s` has type `S>`, which does not implement the `Copy` trait LL | s.x = 10; s.y = Box::new(20); | ^^^^^^^^ value partially assigned here after move error[E0382]: assign to part of moved value: `t` --> $DIR/issue-21232-partial-init-and-use.rs:116:5 | LL | let mut t: T = (0, Box::new(0)); drop(t); | ----- - value moved here | | | move occurs because `t` has type `(u32, Box)`, which does not implement the `Copy` trait LL | t.0 = 10; t.1 = Box::new(20); | ^^^^^^^^ value partially assigned here after move | help: consider cloning the value if the performance cost is acceptable | LL | let mut t: T = (0, Box::new(0)); drop(t.clone()); | ++++++++ error[E0381]: partially assigned binding `s` isn't fully initialized --> $DIR/issue-21232-partial-init-and-use.rs:123:5 | LL | let s: S; | - binding declared here but left uninitialized LL | s.x = 10; | ^^^^^^^^ `s` partially assigned here but it isn't fully initialized | = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit` error[E0381]: partially assigned binding `t` isn't fully initialized --> $DIR/issue-21232-partial-init-and-use.rs:129:5 | LL | let t: T; | - binding declared here but left uninitialized LL | t.0 = 10; | ^^^^^^^^ `t` partially assigned here but it isn't fully initialized | = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit` error[E0382]: assign to part of moved value: `s` --> $DIR/issue-21232-partial-init-and-use.rs:135:5 | LL | let mut s: S = S::new(); drop(s); | ----- - value moved here | | | move occurs because `s` has type `S>`, which does not implement the `Copy` trait LL | s.x = 10; | ^^^^^^^^ value partially assigned here after move error[E0382]: assign to part of moved value: `t` --> $DIR/issue-21232-partial-init-and-use.rs:142:5 | LL | let mut t: T = (0, Box::new(0)); drop(t); | ----- - value moved here | | | move occurs because `t` has type `(u32, Box)`, which does not implement the `Copy` trait LL | t.0 = 10; | ^^^^^^^^ value partially assigned here after move | help: consider cloning the value if the performance cost is acceptable | LL | let mut t: T = (0, Box::new(0)); drop(t.clone()); | ++++++++ error[E0381]: partially assigned binding `s` isn't fully initialized --> $DIR/issue-21232-partial-init-and-use.rs:149:5 | LL | let s: S; | - binding declared here but left uninitialized LL | s.x = 10; | ^^^^^^^^ `s` partially assigned here but it isn't fully initialized | = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit` error[E0381]: partially assigned binding `t` isn't fully initialized --> $DIR/issue-21232-partial-init-and-use.rs:155:5 | LL | let t: Tvoid; | - binding declared here but left uninitialized LL | t.0 = 10; | ^^^^^^^^ `t` partially assigned here but it isn't fully initialized | = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit` error[E0381]: partially assigned binding `q` isn't fully initialized --> $DIR/issue-21232-partial-init-and-use.rs:170:5 | LL | let q: Q>; | - binding declared here but left uninitialized LL | q.r.f.x = 10; q.r.f.y = Box::new(20); | ^^^^^^^^^^^^ `q.r.f` partially assigned here but it isn't fully initialized | = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit` error[E0381]: partially assigned binding `q` isn't fully initialized --> $DIR/issue-21232-partial-init-and-use.rs:176:5 | LL | let q: Q; | - binding declared here but left uninitialized LL | q.r.f.0 = 10; q.r.f.1 = Box::new(20); | ^^^^^^^^^^^^ `q.r.f` partially assigned here but it isn't fully initialized | = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit` error[E0382]: assign to part of moved value: `q.r` --> $DIR/issue-21232-partial-init-and-use.rs:182:5 | LL | let mut q: Q> = Q::new(S::new()); drop(q.r); | --- value moved here LL | q.r.f.x = 10; q.r.f.y = Box::new(20); | ^^^^^^^^^^^^ value partially assigned here after move | = note: move occurs because `q.r` has type `R>>`, which does not implement the `Copy` trait error[E0382]: assign to part of moved value: `q.r` --> $DIR/issue-21232-partial-init-and-use.rs:189:5 | LL | let mut q: Q = Q::new((0, Box::new(0))); drop(q.r); | --- value moved here LL | q.r.f.0 = 10; q.r.f.1 = Box::new(20); | ^^^^^^^^^^^^ value partially assigned here after move | = note: move occurs because `q.r` has type `R<(u32, Box)>`, which does not implement the `Copy` trait error[E0381]: partially assigned binding `q` isn't fully initialized --> $DIR/issue-21232-partial-init-and-use.rs:196:5 | LL | let q: Q>; | - binding declared here but left uninitialized LL | q.r.f.x = 10; | ^^^^^^^^^^^^ `q.r.f` partially assigned here but it isn't fully initialized | = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit` error[E0381]: partially assigned binding `q` isn't fully initialized --> $DIR/issue-21232-partial-init-and-use.rs:202:5 | LL | let q: Q; | - binding declared here but left uninitialized LL | q.r.f.0 = 10; | ^^^^^^^^^^^^ `q.r.f` partially assigned here but it isn't fully initialized | = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit` error[E0382]: assign to part of moved value: `q.r` --> $DIR/issue-21232-partial-init-and-use.rs:208:5 | LL | let mut q: Q> = Q::new(S::new()); drop(q.r); | --- value moved here LL | q.r.f.x = 10; | ^^^^^^^^^^^^ value partially assigned here after move | = note: move occurs because `q.r` has type `R>>`, which does not implement the `Copy` trait error[E0382]: assign to part of moved value: `q.r` --> $DIR/issue-21232-partial-init-and-use.rs:215:5 | LL | let mut q: Q = Q::new((0, Box::new(0))); drop(q.r); | --- value moved here LL | q.r.f.0 = 10; | ^^^^^^^^^^^^ value partially assigned here after move | = note: move occurs because `q.r` has type `R<(u32, Box)>`, which does not implement the `Copy` trait error[E0381]: partially assigned binding `q` isn't fully initialized --> $DIR/issue-21232-partial-init-and-use.rs:222:5 | LL | let mut q: Q>; | ----- binding declared here but left uninitialized LL | q.r.f.x = 10; | ^^^^^^^^^^^^ `q.r.f` partially assigned here but it isn't fully initialized | = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit` error[E0381]: partially assigned binding `q` isn't fully initialized --> $DIR/issue-21232-partial-init-and-use.rs:228:5 | LL | let mut q: Q; | ----- binding declared here but left uninitialized LL | q.r.f.0 = 10; | ^^^^^^^^^^^^ `q.r.f` partially assigned here but it isn't fully initialized | = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit` error[E0382]: assign to part of moved value: `c` --> $DIR/issue-21232-partial-init-and-use.rs:245:13 | LL | let mut c = (1, "".to_owned()); | ----- move occurs because `c` has type `(i32, String)`, which does not implement the `Copy` trait LL | match c { LL | c2 => { | -- value moved here LL | c.0 = 2; | ^^^^^^^ value partially assigned here after move | help: borrow this binding in the pattern to avoid moving the value | LL | ref c2 => { | +++ error[E0382]: assign to part of moved value: `c` --> $DIR/issue-21232-partial-init-and-use.rs:255:13 | LL | let mut c = (1, (1, "".to_owned())); | ----- move occurs because `c` has type `(i32, (i32, String))`, which does not implement the `Copy` trait LL | match c { LL | c2 => { | -- value moved here LL | (c.1).0 = 2; | ^^^^^^^^^^^ value partially assigned here after move | help: borrow this binding in the pattern to avoid moving the value | LL | ref c2 => { | +++ error[E0382]: assign to part of moved value: `c.1` --> $DIR/issue-21232-partial-init-and-use.rs:263:13 | LL | c2 => { | -- value moved here LL | ((c.1).1).0 = 3; | ^^^^^^^^^^^^^^^ value partially assigned here after move | = note: move occurs because `c.1` has type `(i32, (i32, String))`, which does not implement the `Copy` trait help: borrow this binding in the pattern to avoid moving the value | LL | ref c2 => { | +++ error: aborting due to 23 previous errors Some errors have detailed explanations: E0381, E0382. For more information about an error, try `rustc --explain E0381`.