Nov 28 03:00:42.737 INFO checking jssandh2/rust-systems against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 03:00:42.737 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-5/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +db42d4dad33013eba11ef37342ad9f614e5652b8-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 03:00:43.222 INFO [stdout] 1005cc6bbd7ee2aa832118b0bb55d532abbaecacb11b437fed948459a6f0e53d
Nov 28 03:00:43.229 INFO running `"docker" "start" "-a" "1005cc6bbd7ee2aa832118b0bb55d532abbaecacb11b437fed948459a6f0e53d"`
Nov 28 03:00:44.392 INFO [stderr] usermod: no changes
Nov 28 03:00:44.459 INFO [stderr]     Checking rust-systems v0.0.1 (/source)
Nov 28 03:00:45.138 INFO [stderr] warning: unnecessary parentheses around assigned value
Nov 28 03:00:45.139 INFO [stderr]   --> src/test/functions.rs:20:13
Nov 28 03:00:45.139 INFO [stderr]    |
Nov 28 03:00:45.139 INFO [stderr] 20 |     let x = (y = 6); // `x` has the value `()`, _NOT_ 6
Nov 28 03:00:45.139 INFO [stderr]    |             ^^^^^^^ help: remove these parentheses
Nov 28 03:00:45.139 INFO [stderr]    |
Nov 28 03:00:45.139 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 28 03:00:45.139 INFO [stderr] 
Nov 28 03:00:45.220 INFO [stderr] warning: unreachable statement
Nov 28 03:00:45.220 INFO [stderr]   --> src/test/functions.rs:23:5
Nov 28 03:00:45.220 INFO [stderr]    |
Nov 28 03:00:45.220 INFO [stderr] 23 |     let x: String = diverges();
Nov 28 03:00:45.220 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:00:45.220 INFO [stderr]    |
Nov 28 03:00:45.220 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Nov 28 03:00:45.220 INFO [stderr] 
Nov 28 03:00:45.248 INFO [stderr] warning: variable `y` is assigned to, but never used
Nov 28 03:00:45.248 INFO [stderr]   --> src/test/functions.rs:19:13
Nov 28 03:00:45.248 INFO [stderr]    |
Nov 28 03:00:45.248 INFO [stderr] 19 |     let mut y = 5;
Nov 28 03:00:45.248 INFO [stderr]    |             ^
Nov 28 03:00:45.248 INFO [stderr]    |
Nov 28 03:00:45.249 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 03:00:45.249 INFO [stderr]    = note: consider using `_y` instead
Nov 28 03:00:45.249 INFO [stderr] 
Nov 28 03:00:45.249 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:45.249 INFO [stderr]   --> src/test/functions.rs:20:9
Nov 28 03:00:45.249 INFO [stderr]    |
Nov 28 03:00:45.249 INFO [stderr] 20 |     let x = (y = 6); // `x` has the value `()`, _NOT_ 6
Nov 28 03:00:45.249 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 28 03:00:45.249 INFO [stderr] 
Nov 28 03:00:45.249 INFO [stderr] warning: value assigned to `y` is never read
Nov 28 03:00:45.249 INFO [stderr]   --> src/test/functions.rs:20:14
Nov 28 03:00:45.249 INFO [stderr]    |
Nov 28 03:00:45.249 INFO [stderr] 20 |     let x = (y = 6); // `x` has the value `()`, _NOT_ 6
Nov 28 03:00:45.249 INFO [stderr]    |              ^
Nov 28 03:00:45.249 INFO [stderr]    |
Nov 28 03:00:45.249 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 28 03:00:45.249 INFO [stderr] 
Nov 28 03:00:45.249 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:45.249 INFO [stderr]   --> src/test/functions.rs:22:9
Nov 28 03:00:45.249 INFO [stderr]    |
Nov 28 03:00:45.249 INFO [stderr] 22 |     let x: i32 = diverges();
Nov 28 03:00:45.249 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 28 03:00:45.249 INFO [stderr] 
Nov 28 03:00:45.249 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:45.249 INFO [stderr]   --> src/test/functions.rs:23:9
Nov 28 03:00:45.249 INFO [stderr]    |
Nov 28 03:00:45.249 INFO [stderr] 23 |     let x: String = diverges();
Nov 28 03:00:45.249 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 28 03:00:45.249 INFO [stderr] 
Nov 28 03:00:45.249 INFO [stderr] warning: unused variable: `f`
Nov 28 03:00:45.249 INFO [stderr]   --> src/test/functions.rs:28:9
Nov 28 03:00:45.249 INFO [stderr]    |
Nov 28 03:00:45.249 INFO [stderr] 28 |     let f: fn(i32) -> i32;
Nov 28 03:00:45.249 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 03:00:45.249 INFO [stderr] 
Nov 28 03:00:45.249 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:45.249 INFO [stderr]   --> src/test/functions.rs:31:9
Nov 28 03:00:45.249 INFO [stderr]    |
Nov 28 03:00:45.249 INFO [stderr] 31 |     let y = f(5, 6);
Nov 28 03:00:45.249 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 28 03:00:45.249 INFO [stderr] 
Nov 28 03:00:45.249 INFO [stderr] warning: unused variable: `z`
Nov 28 03:00:45.249 INFO [stderr]   --> src/test/functions.rs:34:9
Nov 28 03:00:45.249 INFO [stderr]    |
Nov 28 03:00:45.249 INFO [stderr] 34 |     let z = sum_number(5, 6);
Nov 28 03:00:45.249 INFO [stderr]    |         ^ help: consider using `_z` instead
Nov 28 03:00:45.249 INFO [stderr] 
Nov 28 03:00:45.249 INFO [stderr] warning: function is never used: `sum_number_three`
Nov 28 03:00:45.249 INFO [stderr]  --> src/test/functions.rs:9:1
Nov 28 03:00:45.249 INFO [stderr]   |
Nov 28 03:00:45.249 INFO [stderr] 9 | fn sum_number_three(x: i32, y: i32, z:i32) -> i32 {
Nov 28 03:00:45.249 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:00:45.249 INFO [stderr]   |
Nov 28 03:00:45.249 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 03:00:45.249 INFO [stderr] 
Nov 28 03:00:45.748 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:45.748 INFO [stderr]  --> src/test/vectors.rs:9:9
Nov 28 03:00:45.748 INFO [stderr]   |
Nov 28 03:00:45.748 INFO [stderr] 9 |     let x = Box::new(5);   // This is closer to the Type-Theoretic defn of `List<T>` := Nil | Cons(T, Box(List<T>))
Nov 28 03:00:45.748 INFO [stderr]   |         ^ help: consider using `_x` instead
Nov 28 03:00:45.760 INFO [stderr]   |
Nov 28 03:00:45.760 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 03:00:45.760 INFO [stderr] 
Nov 28 03:00:46.204 INFO [stderr] warning: unnecessary parentheses around assigned value
Nov 28 03:00:46.204 INFO [stderr]   --> src/test/primitive_types.rs:47:13
Nov 28 03:00:46.204 INFO [stderr]    |
Nov 28 03:00:46.204 INFO [stderr] 47 |     let b = (0);  // Normal zero
Nov 28 03:00:46.204 INFO [stderr]    |             ^^^ help: remove these parentheses
Nov 28 03:00:46.204 INFO [stderr]    |
Nov 28 03:00:46.204 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 28 03:00:46.204 INFO [stderr] 
Nov 28 03:00:46.268 INFO [stderr] warning: unnecessary parentheses around assigned value
Nov 28 03:00:46.268 INFO [stderr]   --> src/test/functions.rs:20:13
Nov 28 03:00:46.268 INFO [stderr]    |
Nov 28 03:00:46.269 INFO [stderr] 20 |     let x = (y = 6); // `x` has the value `()`, _NOT_ 6
Nov 28 03:00:46.269 INFO [stderr]    |             ^^^^^^^ help: remove these parentheses
Nov 28 03:00:46.270 INFO [stderr]    |
Nov 28 03:00:46.270 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 28 03:00:46.271 INFO [stderr] 
Nov 28 03:00:46.413 INFO [stderr] warning: unreachable statement
Nov 28 03:00:46.414 INFO [stderr]   --> src/test/functions.rs:23:5
Nov 28 03:00:46.414 INFO [stderr]    |
Nov 28 03:00:46.415 INFO [stderr] 23 |     let x: String = diverges();
Nov 28 03:00:46.415 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:00:46.449 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.450 INFO [stderr]  --> src/test/primitive_types.rs:3:9
Nov 28 03:00:46.450 INFO [stderr]   |
Nov 28 03:00:46.451 INFO [stderr] 3 |     let x = true;
Nov 28 03:00:46.451 INFO [stderr]   |         ^ help: consider using `_x` instead
Nov 28 03:00:46.451 INFO [stderr]    |
Nov 28 03:00:46.452 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Nov 28 03:00:46.452 INFO [stderr] 
Nov 28 03:00:46.473 INFO [stderr]   |
Nov 28 03:00:46.474 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 03:00:46.474 INFO [stderr] 
Nov 28 03:00:46.475 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:46.476 INFO [stderr]  --> src/test/primitive_types.rs:4:9
Nov 28 03:00:46.476 INFO [stderr]   |
Nov 28 03:00:46.476 INFO [stderr] 4 |     let y: bool = false;
Nov 28 03:00:46.477 INFO [stderr]   |         ^ help: consider using `_y` instead
Nov 28 03:00:46.477 INFO [stderr] 
Nov 28 03:00:46.477 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.478 INFO [stderr]  --> src/test/primitive_types.rs:7:9
Nov 28 03:00:46.478 INFO [stderr]   |
Nov 28 03:00:46.478 INFO [stderr] 7 |     let x = 'x';
Nov 28 03:00:46.478 INFO [stderr]   |         ^ help: consider using `_x` instead
Nov 28 03:00:46.479 INFO [stderr] 
Nov 28 03:00:46.479 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.479 INFO [stderr]   --> src/test/primitive_types.rs:10:9
Nov 28 03:00:46.480 INFO [stderr]    |
Nov 28 03:00:46.480 INFO [stderr] 10 |     let x = 42; // `x` has type `i32`
Nov 28 03:00:46.480 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 28 03:00:46.481 INFO [stderr] 
Nov 28 03:00:46.481 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:46.481 INFO [stderr]   --> src/test/primitive_types.rs:11:9
Nov 28 03:00:46.481 INFO [stderr]    |
Nov 28 03:00:46.482 INFO [stderr] 11 |     let y = 1.0; // `y` has type `f64`
Nov 28 03:00:46.482 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 28 03:00:46.482 INFO [stderr] 
Nov 28 03:00:46.482 INFO [stderr] warning: unused variable: `a`
Nov 28 03:00:46.483 INFO [stderr]   --> src/test/primitive_types.rs:19:9
Nov 28 03:00:46.483 INFO [stderr]    |
Nov 28 03:00:46.483 INFO [stderr] 19 |     let a = [1, 2, 3]; // a : [i32; 3]
Nov 28 03:00:46.484 INFO [stderr]    |         ^ help: consider using `_a` instead
Nov 28 03:00:46.484 INFO [stderr] 
Nov 28 03:00:46.484 INFO [stderr] warning: unused variable: `m`
Nov 28 03:00:46.484 INFO [stderr]   --> src/test/primitive_types.rs:20:13
Nov 28 03:00:46.485 INFO [stderr]    |
Nov 28 03:00:46.485 INFO [stderr] 20 |     let mut m = [1, 2, 3]; // m : [i32; 3]
Nov 28 03:00:46.485 INFO [stderr]    |             ^ help: consider using `_m` instead
Nov 28 03:00:46.485 INFO [stderr] 
Nov 28 03:00:46.486 INFO [stderr] warning: unused variable: `names`
Nov 28 03:00:46.486 INFO [stderr]   --> src/test/primitive_types.rs:25:9
Nov 28 03:00:46.486 INFO [stderr]    |
Nov 28 03:00:46.486 INFO [stderr] 25 |     let names = ["Juspreet", "Cook", "Levin"]; // names : [&str; 3]
Nov 28 03:00:46.487 INFO [stderr]    |         ^^^^^ help: consider using `_names` instead
Nov 28 03:00:46.487 INFO [stderr] 
Nov 28 03:00:46.487 INFO [stderr] warning: unused variable: `b_duplicate`
Nov 28 03:00:46.487 INFO [stderr]   --> src/test/primitive_types.rs:30:9
Nov 28 03:00:46.487 INFO [stderr]    |
Nov 28 03:00:46.487 INFO [stderr] 30 |     let b_duplicate = &b[..];  // A slice containing everything in `a`
Nov 28 03:00:46.487 INFO [stderr]    |         ^^^^^^^^^^^ help: consider using `_b_duplicate` instead
Nov 28 03:00:46.487 INFO [stderr] 
Nov 28 03:00:46.487 INFO [stderr] warning: unused variable: `middle`
Nov 28 03:00:46.487 INFO [stderr]   --> src/test/primitive_types.rs:31:9
Nov 28 03:00:46.487 INFO [stderr]    |
Nov 28 03:00:46.487 INFO [stderr] 31 |     let middle = &b[1..4];     // A slice of `a` : [1, 2, 3]
Nov 28 03:00:46.487 INFO [stderr]    |         ^^^^^^ help: consider using `_middle` instead
Nov 28 03:00:46.487 INFO [stderr] 
Nov 28 03:00:46.487 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.487 INFO [stderr]   --> src/test/primitive_types.rs:35:9
Nov 28 03:00:46.487 INFO [stderr]    |
Nov 28 03:00:46.487 INFO [stderr] 35 |     let x = (1, "hello");
Nov 28 03:00:46.487 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 28 03:00:46.487 INFO [stderr] 
Nov 28 03:00:46.487 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:46.487 INFO [stderr]   --> src/test/primitive_types.rs:36:9
Nov 28 03:00:46.487 INFO [stderr]    |
Nov 28 03:00:46.487 INFO [stderr] 36 |     let y: (i32, &str) = (1, "hello");
Nov 28 03:00:46.487 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 28 03:00:46.487 INFO [stderr] 
Nov 28 03:00:46.487 INFO [stderr] warning: variable `x` is assigned to, but never used
Nov 28 03:00:46.487 INFO [stderr]   --> src/test/primitive_types.rs:38:13
Nov 28 03:00:46.487 INFO [stderr]    |
Nov 28 03:00:46.487 INFO [stderr] 38 |     let mut x = (1, 2);
Nov 28 03:00:46.487 INFO [stderr]    |             ^
Nov 28 03:00:46.487 INFO [stderr]    |
Nov 28 03:00:46.487 INFO [stderr]    = note: consider using `_x` instead
Nov 28 03:00:46.487 INFO [stderr] 
Nov 28 03:00:46.487 INFO [stderr] warning: value assigned to `x` is never read
Nov 28 03:00:46.487 INFO [stderr]   --> src/test/primitive_types.rs:40:5
Nov 28 03:00:46.487 INFO [stderr]    |
Nov 28 03:00:46.487 INFO [stderr] 40 |     x = y;   // A tuple is assigned to another (mutable) tuple, and type-check => The same Product-Type
Nov 28 03:00:46.487 INFO [stderr]    |     ^
Nov 28 03:00:46.487 INFO [stderr]    |
Nov 28 03:00:46.487 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 28 03:00:46.487 INFO [stderr] 
Nov 28 03:00:46.487 INFO [stderr] warning: unused variable: `a`
Nov 28 03:00:46.487 INFO [stderr]   --> src/test/primitive_types.rs:46:9
Nov 28 03:00:46.487 INFO [stderr]    |
Nov 28 03:00:46.487 INFO [stderr] 46 |     let a = (0,); // Tuple of arity 1
Nov 28 03:00:46.487 INFO [stderr]    |         ^ help: consider using `_a` instead
Nov 28 03:00:46.487 INFO [stderr] 
Nov 28 03:00:46.487 INFO [stderr] warning: unused variable: `b`
Nov 28 03:00:46.487 INFO [stderr]   --> src/test/primitive_types.rs:47:9
Nov 28 03:00:46.487 INFO [stderr]    |
Nov 28 03:00:46.487 INFO [stderr] 47 |     let b = (0);  // Normal zero
Nov 28 03:00:46.487 INFO [stderr]    |         ^ help: consider using `_b` instead
Nov 28 03:00:46.487 INFO [stderr] 
Nov 28 03:00:46.488 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.488 INFO [stderr]   --> src/test/primitive_types.rs:52:9
Nov 28 03:00:46.488 INFO [stderr]    |
Nov 28 03:00:46.488 INFO [stderr] 52 |     let x = tuple.0;
Nov 28 03:00:46.488 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 28 03:00:46.488 INFO [stderr] 
Nov 28 03:00:46.488 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:46.488 INFO [stderr]   --> src/test/primitive_types.rs:53:9
Nov 28 03:00:46.488 INFO [stderr]    |
Nov 28 03:00:46.488 INFO [stderr] 53 |     let y = tuple.1;
Nov 28 03:00:46.488 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 28 03:00:46.488 INFO [stderr] 
Nov 28 03:00:46.488 INFO [stderr] warning: unused variable: `z`
Nov 28 03:00:46.488 INFO [stderr]   --> src/test/primitive_types.rs:54:9
Nov 28 03:00:46.488 INFO [stderr]    |
Nov 28 03:00:46.488 INFO [stderr] 54 |     let z = tuple.2;
Nov 28 03:00:46.488 INFO [stderr]    |         ^ help: consider using `_z` instead
Nov 28 03:00:46.488 INFO [stderr] 
Nov 28 03:00:46.516 INFO [stderr] warning: variable does not need to be mutable
Nov 28 03:00:46.517 INFO [stderr]   --> src/test/primitive_types.rs:20:9
Nov 28 03:00:46.517 INFO [stderr]    |
Nov 28 03:00:46.517 INFO [stderr] 20 |     let mut m = [1, 2, 3]; // m : [i32; 3]
Nov 28 03:00:46.518 INFO [stderr]    |         ----^
Nov 28 03:00:46.518 INFO [stderr]    |         |
Nov 28 03:00:46.518 INFO [stderr]    |         help: remove this `mut`
Nov 28 03:00:46.518 INFO [stderr] warning: variable `y` is assigned to, but never used
Nov 28 03:00:46.518 INFO [stderr]   --> src/test/functions.rs:19:13
Nov 28 03:00:46.518 INFO [stderr]    |
Nov 28 03:00:46.518 INFO [stderr] 19 |     let mut y = 5;
Nov 28 03:00:46.519 INFO [stderr]    |             ^
Nov 28 03:00:46.528 INFO [stderr]    |
Nov 28 03:00:46.528 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 03:00:46.529 INFO [stderr]    = note: consider using `_y` instead
Nov 28 03:00:46.529 INFO [stderr] 
Nov 28 03:00:46.529 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.529 INFO [stderr]   --> src/test/functions.rs:20:9
Nov 28 03:00:46.529 INFO [stderr]    |
Nov 28 03:00:46.530 INFO [stderr] 20 |     let x = (y = 6); // `x` has the value `()`, _NOT_ 6
Nov 28 03:00:46.530 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 28 03:00:46.530 INFO [stderr] 
Nov 28 03:00:46.530 INFO [stderr] warning: value assigned to `y` is never read
Nov 28 03:00:46.530 INFO [stderr]   --> src/test/functions.rs:20:14
Nov 28 03:00:46.530 INFO [stderr]    |
Nov 28 03:00:46.531 INFO [stderr] 20 |     let x = (y = 6); // `x` has the value `()`, _NOT_ 6
Nov 28 03:00:46.531 INFO [stderr]    |              ^
Nov 28 03:00:46.531 INFO [stderr]    |
Nov 28 03:00:46.531 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 28 03:00:46.531 INFO [stderr] 
Nov 28 03:00:46.532 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.532 INFO [stderr]   --> src/test/functions.rs:22:9
Nov 28 03:00:46.532 INFO [stderr]    |
Nov 28 03:00:46.532 INFO [stderr] 22 |     let x: i32 = diverges();
Nov 28 03:00:46.532 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 28 03:00:46.533 INFO [stderr] 
Nov 28 03:00:46.533 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.533 INFO [stderr]   --> src/test/functions.rs:23:9
Nov 28 03:00:46.533 INFO [stderr]    |
Nov 28 03:00:46.533 INFO [stderr] 23 |     let x: String = diverges();
Nov 28 03:00:46.533 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 28 03:00:46.534 INFO [stderr] 
Nov 28 03:00:46.534 INFO [stderr] warning: unused variable: `f`
Nov 28 03:00:46.534 INFO [stderr]   --> src/test/functions.rs:28:9
Nov 28 03:00:46.534 INFO [stderr]    |
Nov 28 03:00:46.534 INFO [stderr] 28 |     let f: fn(i32) -> i32;
Nov 28 03:00:46.535 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 28 03:00:46.535 INFO [stderr] 
Nov 28 03:00:46.535 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:46.535 INFO [stderr]   --> src/test/functions.rs:31:9
Nov 28 03:00:46.535 INFO [stderr]    |
Nov 28 03:00:46.535 INFO [stderr] 31 |     let y = f(5, 6);
Nov 28 03:00:46.536 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 28 03:00:46.536 INFO [stderr] 
Nov 28 03:00:46.536 INFO [stderr] warning: unused variable: `z`
Nov 28 03:00:46.536 INFO [stderr]   --> src/test/functions.rs:34:9
Nov 28 03:00:46.536 INFO [stderr]    |
Nov 28 03:00:46.537 INFO [stderr] 34 |     let z = sum_number(5, 6);
Nov 28 03:00:46.537 INFO [stderr]    |         ^ help: consider using `_z` instead
Nov 28 03:00:46.537 INFO [stderr] 
Nov 28 03:00:46.537 INFO [stderr]    |
Nov 28 03:00:46.537 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 03:00:46.537 INFO [stderr] 
Nov 28 03:00:46.537 INFO [stderr] warning: function is never used: `foo`
Nov 28 03:00:46.538 INFO [stderr]   --> src/test/primitive_types.rs:57:5
Nov 28 03:00:46.538 INFO [stderr]    |
Nov 28 03:00:46.538 INFO [stderr] 57 |     fn foo(x: i32) -> i32 { x } // foo : i32 -> i32
Nov 28 03:00:46.538 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:00:46.538 INFO [stderr]    |
Nov 28 03:00:46.538 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 03:00:46.539 INFO [stderr] 
Nov 28 03:00:46.539 INFO [stderr] warning: function is never used: `two_foo`
Nov 28 03:00:46.539 INFO [stderr]   --> src/test/primitive_types.rs:59:5
Nov 28 03:00:46.539 INFO [stderr]    |
Nov 28 03:00:46.539 INFO [stderr] 59 |     fn two_foo(x: i32, y: i32) -> i32 { x + y } // two_foo : (i32 * i32) -> i32
Nov 28 03:00:46.539 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:00:46.540 INFO [stderr] 
Nov 28 03:00:46.560 INFO [stderr] warning: function is never used: `sum_number_three`
Nov 28 03:00:46.560 INFO [stderr]  --> src/test/functions.rs:9:1
Nov 28 03:00:46.561 INFO [stderr]   |
Nov 28 03:00:46.561 INFO [stderr] 9 | fn sum_number_three(x: i32, y: i32, z:i32) -> i32 {
Nov 28 03:00:46.561 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:00:46.561 INFO [stderr]   |
Nov 28 03:00:46.561 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 03:00:46.562 INFO [stderr] 
Nov 28 03:00:46.568 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:46.568 INFO [stderr]  --> src/test/data_types.rs:3:9
Nov 28 03:00:46.568 INFO [stderr]   |
Nov 28 03:00:46.568 INFO [stderr] 3 |    let (y, z) = (1, 2); // Binding that uses _patterns_
Nov 28 03:00:46.568 INFO [stderr]   |         ^ help: consider using `_y` instead
Nov 28 03:00:46.580 INFO [stderr]   |
Nov 28 03:00:46.580 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 03:00:46.580 INFO [stderr] 
Nov 28 03:00:46.580 INFO [stderr] warning: unused variable: `z`
Nov 28 03:00:46.580 INFO [stderr]  --> src/test/data_types.rs:3:12
Nov 28 03:00:46.580 INFO [stderr]   |
Nov 28 03:00:46.580 INFO [stderr] 3 |    let (y, z) = (1, 2); // Binding that uses _patterns_
Nov 28 03:00:46.580 INFO [stderr]   |            ^ help: consider using `_z` instead
Nov 28 03:00:46.580 INFO [stderr] 
Nov 28 03:00:46.581 INFO [stderr] warning: unused variable: `k`
Nov 28 03:00:46.581 INFO [stderr]  --> src/test/data_types.rs:4:8
Nov 28 03:00:46.581 INFO [stderr]   |
Nov 28 03:00:46.581 INFO [stderr] 4 |    let k: i32 = 5; // Binding to _bind_ k to 5, with a static "int 32" type
Nov 28 03:00:46.581 INFO [stderr]   |        ^ help: consider using `_k` instead
Nov 28 03:00:46.581 INFO [stderr] 
Nov 28 03:00:46.581 INFO [stderr] warning: value assigned to `xp` is never read
Nov 28 03:00:46.581 INFO [stderr]   --> src/test/data_types.rs:11:12
Nov 28 03:00:46.581 INFO [stderr]    |
Nov 28 03:00:46.581 INFO [stderr] 11 |    let mut xp = 5;
Nov 28 03:00:46.581 INFO [stderr]    |            ^^
Nov 28 03:00:46.581 INFO [stderr]    |
Nov 28 03:00:46.581 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 28 03:00:46.581 INFO [stderr] 
Nov 28 03:00:46.581 INFO [stderr] warning: value assigned to `a` is never read
Nov 28 03:00:46.581 INFO [stderr]   --> src/test/data_types.rs:32:12
Nov 28 03:00:46.581 INFO [stderr]    |
Nov 28 03:00:46.581 INFO [stderr] 32 |    let mut a: i32 = 8;
Nov 28 03:00:46.581 INFO [stderr]    |            ^
Nov 28 03:00:46.581 INFO [stderr] 
Nov 28 03:00:46.581 INFO [stderr] warning: unused variable: `a`
Nov 28 03:00:46.582 INFO [stderr]   --> src/test/data_types.rs:34:8
Nov 28 03:00:46.582 INFO [stderr]    |
Nov 28 03:00:46.582 INFO [stderr] 34 |    let a = a; // a is now _immutable_ and *locked* to 10 (util shadowed). 
Nov 28 03:00:46.582 INFO [stderr]    |        ^ help: consider using `_a` instead
Nov 28 03:00:46.582 INFO [stderr] 
Nov 28 03:00:46.582 INFO [stderr] warning: unused variable: `e`
Nov 28 03:00:46.582 INFO [stderr]   --> src/test/data_types.rs:37:8
Nov 28 03:00:46.582 INFO [stderr]    |
Nov 28 03:00:46.582 INFO [stderr] 37 |    let e = 5;
Nov 28 03:00:46.582 INFO [stderr]    |        ^ help: consider using `_e` instead
Nov 28 03:00:46.582 INFO [stderr] 
Nov 28 03:00:46.582 INFO [stderr] warning: unused variable: `e`
Nov 28 03:00:46.582 INFO [stderr]   --> src/test/data_types.rs:38:8
Nov 28 03:00:46.582 INFO [stderr]    |
Nov 28 03:00:46.582 INFO [stderr] 38 |    let e = "I am now a string!"; // e has changed types from i32 --> string
Nov 28 03:00:46.582 INFO [stderr]    |        ^ help: consider using `_e` instead
Nov 28 03:00:46.582 INFO [stderr] 
Nov 28 03:00:46.716 INFO [stderr] warning: unnecessary parentheses around assigned value
Nov 28 03:00:46.716 INFO [stderr]   --> src/test/primitive_types.rs:47:13
Nov 28 03:00:46.716 INFO [stderr]    |
Nov 28 03:00:46.716 INFO [stderr] 47 |     let b = (0);  // Normal zero
Nov 28 03:00:46.716 INFO [stderr]    |             ^^^ help: remove these parentheses
Nov 28 03:00:46.736 INFO [stderr]    |
Nov 28 03:00:46.736 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 28 03:00:46.737 INFO [stderr] 
Nov 28 03:00:46.760 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:46.760 INFO [stderr]   --> src/test/conditionals_and_loops.rs:14:9
Nov 28 03:00:46.760 INFO [stderr]    |
Nov 28 03:00:46.760 INFO [stderr] 14 |     let y = if x == 5 { 10 } else { 15 }; // y : i32
Nov 28 03:00:46.760 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 28 03:00:46.760 INFO [stderr]    |
Nov 28 03:00:46.760 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 03:00:46.760 INFO [stderr] 
Nov 28 03:00:46.866 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.866 INFO [stderr]  --> src/test/primitive_types.rs:3:9
Nov 28 03:00:46.866 INFO [stderr]   |
Nov 28 03:00:46.866 INFO [stderr] 3 |     let x = true;
Nov 28 03:00:46.866 INFO [stderr]   |         ^ help: consider using `_x` instead
Nov 28 03:00:46.866 INFO [stderr]   |
Nov 28 03:00:46.866 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 03:00:46.866 INFO [stderr] 
Nov 28 03:00:46.867 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:46.867 INFO [stderr]  --> src/test/primitive_types.rs:4:9
Nov 28 03:00:46.867 INFO [stderr]   |
Nov 28 03:00:46.868 INFO [stderr] 4 |     let y: bool = false;
Nov 28 03:00:46.868 INFO [stderr]   |         ^ help: consider using `_y` instead
Nov 28 03:00:46.868 INFO [stderr] 
Nov 28 03:00:46.869 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.869 INFO [stderr]  --> src/test/primitive_types.rs:7:9
Nov 28 03:00:46.869 INFO [stderr]   |
Nov 28 03:00:46.870 INFO [stderr] 7 |     let x = 'x';
Nov 28 03:00:46.870 INFO [stderr]   |         ^ help: consider using `_x` instead
Nov 28 03:00:46.871 INFO [stderr] 
Nov 28 03:00:46.871 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.884 INFO [stderr]   --> src/test/primitive_types.rs:10:9
Nov 28 03:00:46.884 INFO [stderr]    |
Nov 28 03:00:46.884 INFO [stderr] 10 |     let x = 42; // `x` has type `i32`
Nov 28 03:00:46.884 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 28 03:00:46.884 INFO [stderr] 
Nov 28 03:00:46.884 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:46.884 INFO [stderr]   --> src/test/primitive_types.rs:11:9
Nov 28 03:00:46.884 INFO [stderr]    |
Nov 28 03:00:46.884 INFO [stderr] 11 |     let y = 1.0; // `y` has type `f64`
Nov 28 03:00:46.884 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 28 03:00:46.884 INFO [stderr] 
Nov 28 03:00:46.884 INFO [stderr] warning: unused variable: `a`
Nov 28 03:00:46.884 INFO [stderr]   --> src/test/primitive_types.rs:19:9
Nov 28 03:00:46.884 INFO [stderr]    |
Nov 28 03:00:46.884 INFO [stderr] 19 |     let a = [1, 2, 3]; // a : [i32; 3]
Nov 28 03:00:46.884 INFO [stderr]    |         ^ help: consider using `_a` instead
Nov 28 03:00:46.884 INFO [stderr] 
Nov 28 03:00:46.885 INFO [stderr] warning: unused variable: `m`
Nov 28 03:00:46.885 INFO [stderr]   --> src/test/primitive_types.rs:20:13
Nov 28 03:00:46.885 INFO [stderr]    |
Nov 28 03:00:46.885 INFO [stderr] 20 |     let mut m = [1, 2, 3]; // m : [i32; 3]
Nov 28 03:00:46.885 INFO [stderr]    |             ^ help: consider using `_m` instead
Nov 28 03:00:46.885 INFO [stderr] 
Nov 28 03:00:46.885 INFO [stderr] warning: unused variable: `names`
Nov 28 03:00:46.885 INFO [stderr]   --> src/test/primitive_types.rs:25:9
Nov 28 03:00:46.885 INFO [stderr]    |
Nov 28 03:00:46.885 INFO [stderr] 25 |     let names = ["Juspreet", "Cook", "Levin"]; // names : [&str; 3]
Nov 28 03:00:46.885 INFO [stderr]    |         ^^^^^ help: consider using `_names` instead
Nov 28 03:00:46.885 INFO [stderr] 
Nov 28 03:00:46.885 INFO [stderr] warning: unused variable: `b_duplicate`
Nov 28 03:00:46.885 INFO [stderr]   --> src/test/primitive_types.rs:30:9
Nov 28 03:00:46.885 INFO [stderr]    |
Nov 28 03:00:46.885 INFO [stderr] 30 |     let b_duplicate = &b[..];  // A slice containing everything in `a`
Nov 28 03:00:46.885 INFO [stderr]    |         ^^^^^^^^^^^ help: consider using `_b_duplicate` instead
Nov 28 03:00:46.885 INFO [stderr] 
Nov 28 03:00:46.886 INFO [stderr] warning: unused variable: `middle`
Nov 28 03:00:46.886 INFO [stderr]   --> src/test/primitive_types.rs:31:9
Nov 28 03:00:46.886 INFO [stderr]    |
Nov 28 03:00:46.886 INFO [stderr] 31 |     let middle = &b[1..4];     // A slice of `a` : [1, 2, 3]
Nov 28 03:00:46.886 INFO [stderr]    |         ^^^^^^ help: consider using `_middle` instead
Nov 28 03:00:46.886 INFO [stderr] 
Nov 28 03:00:46.886 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.886 INFO [stderr]   --> src/test/primitive_types.rs:35:9
Nov 28 03:00:46.886 INFO [stderr]    |
Nov 28 03:00:46.886 INFO [stderr] 35 |     let x = (1, "hello");
Nov 28 03:00:46.886 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 28 03:00:46.887 INFO [stderr] 
Nov 28 03:00:46.887 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:46.887 INFO [stderr]   --> src/test/primitive_types.rs:36:9
Nov 28 03:00:46.887 INFO [stderr]    |
Nov 28 03:00:46.887 INFO [stderr] 36 |     let y: (i32, &str) = (1, "hello");
Nov 28 03:00:46.887 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 28 03:00:46.887 INFO [stderr] 
Nov 28 03:00:46.887 INFO [stderr] warning: variable `x` is assigned to, but never used
Nov 28 03:00:46.887 INFO [stderr]   --> src/test/primitive_types.rs:38:13
Nov 28 03:00:46.887 INFO [stderr]    |
Nov 28 03:00:46.887 INFO [stderr] 38 |     let mut x = (1, 2);
Nov 28 03:00:46.887 INFO [stderr]    |             ^
Nov 28 03:00:46.888 INFO [stderr]    |
Nov 28 03:00:46.888 INFO [stderr]    = note: consider using `_x` instead
Nov 28 03:00:46.888 INFO [stderr] 
Nov 28 03:00:46.888 INFO [stderr] warning: value assigned to `x` is never read
Nov 28 03:00:46.888 INFO [stderr]   --> src/test/primitive_types.rs:40:5
Nov 28 03:00:46.888 INFO [stderr]    |
Nov 28 03:00:46.888 INFO [stderr] 40 |     x = y;   // A tuple is assigned to another (mutable) tuple, and type-check => The same Product-Type
Nov 28 03:00:46.889 INFO [stderr]    |     ^
Nov 28 03:00:46.889 INFO [stderr]    |
Nov 28 03:00:46.889 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 28 03:00:46.889 INFO [stderr] 
Nov 28 03:00:46.890 INFO [stderr] warning: unused variable: `a`
Nov 28 03:00:46.890 INFO [stderr]   --> src/test/primitive_types.rs:46:9
Nov 28 03:00:46.890 INFO [stderr]    |
Nov 28 03:00:46.890 INFO [stderr] 46 |     let a = (0,); // Tuple of arity 1
Nov 28 03:00:46.890 INFO [stderr]    |         ^ help: consider using `_a` instead
Nov 28 03:00:46.890 INFO [stderr] 
Nov 28 03:00:46.891 INFO [stderr] warning: unused variable: `b`
Nov 28 03:00:46.891 INFO [stderr]   --> src/test/primitive_types.rs:47:9
Nov 28 03:00:46.891 INFO [stderr]    |
Nov 28 03:00:46.891 INFO [stderr] 47 |     let b = (0);  // Normal zero
Nov 28 03:00:46.891 INFO [stderr]    |         ^ help: consider using `_b` instead
Nov 28 03:00:46.892 INFO [stderr] 
Nov 28 03:00:46.892 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:46.893 INFO [stderr]   --> src/test/primitive_types.rs:52:9
Nov 28 03:00:46.893 INFO [stderr]    |
Nov 28 03:00:46.893 INFO [stderr] 52 |     let x = tuple.0;
Nov 28 03:00:46.893 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 28 03:00:46.893 INFO [stderr] 
Nov 28 03:00:46.893 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:46.894 INFO [stderr]   --> src/test/primitive_types.rs:53:9
Nov 28 03:00:46.894 INFO [stderr]    |
Nov 28 03:00:46.894 INFO [stderr] 53 |     let y = tuple.1;
Nov 28 03:00:46.894 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 28 03:00:46.894 INFO [stderr] 
Nov 28 03:00:46.894 INFO [stderr] warning: unused variable: `z`
Nov 28 03:00:46.895 INFO [stderr]   --> src/test/primitive_types.rs:54:9
Nov 28 03:00:46.895 INFO [stderr]    |
Nov 28 03:00:46.895 INFO [stderr] 54 |     let z = tuple.2;
Nov 28 03:00:46.895 INFO [stderr]    |         ^ help: consider using `_z` instead
Nov 28 03:00:46.896 INFO [stderr] 
Nov 28 03:00:46.916 INFO [stderr] warning: variable does not need to be mutable
Nov 28 03:00:46.916 INFO [stderr]   --> src/test/primitive_types.rs:20:9
Nov 28 03:00:46.916 INFO [stderr]    |
Nov 28 03:00:46.916 INFO [stderr] 20 |     let mut m = [1, 2, 3]; // m : [i32; 3]
Nov 28 03:00:46.916 INFO [stderr]    |         ----^
Nov 28 03:00:46.917 INFO [stderr]    |         |
Nov 28 03:00:46.917 INFO [stderr]    |         help: remove this `mut`
Nov 28 03:00:46.917 INFO [stderr]    |
Nov 28 03:00:46.917 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 03:00:46.917 INFO [stderr] 
Nov 28 03:00:47.001 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:47.001 INFO [stderr]  --> src/test/data_types.rs:3:9
Nov 28 03:00:47.001 INFO [stderr]   |
Nov 28 03:00:47.001 INFO [stderr] 3 |    let (y, z) = (1, 2); // Binding that uses _patterns_
Nov 28 03:00:47.001 INFO [stderr]   |         ^ help: consider using `_y` instead
Nov 28 03:00:47.001 INFO [stderr]   |
Nov 28 03:00:47.001 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 03:00:47.001 INFO [stderr] 
Nov 28 03:00:47.001 INFO [stderr] warning: unused variable: `z`
Nov 28 03:00:47.001 INFO [stderr]  --> src/test/data_types.rs:3:12
Nov 28 03:00:47.001 INFO [stderr]   |
Nov 28 03:00:47.001 INFO [stderr] 3 |    let (y, z) = (1, 2); // Binding that uses _patterns_
Nov 28 03:00:47.001 INFO [stderr]   |            ^ help: consider using `_z` instead
Nov 28 03:00:47.001 INFO [stderr] 
Nov 28 03:00:47.001 INFO [stderr] warning: unused variable: `k`
Nov 28 03:00:47.001 INFO [stderr]  --> src/test/data_types.rs:4:8
Nov 28 03:00:47.001 INFO [stderr]   |
Nov 28 03:00:47.001 INFO [stderr] 4 |    let k: i32 = 5; // Binding to _bind_ k to 5, with a static "int 32" type
Nov 28 03:00:47.002 INFO [stderr]   |        ^ help: consider using `_k` instead
Nov 28 03:00:47.002 INFO [stderr] 
Nov 28 03:00:47.002 INFO [stderr] warning: value assigned to `xp` is never read
Nov 28 03:00:47.002 INFO [stderr]   --> src/test/data_types.rs:11:12
Nov 28 03:00:47.002 INFO [stderr]    |
Nov 28 03:00:47.002 INFO [stderr] 11 |    let mut xp = 5;
Nov 28 03:00:47.002 INFO [stderr]    |            ^^
Nov 28 03:00:47.002 INFO [stderr]    |
Nov 28 03:00:47.002 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 28 03:00:47.002 INFO [stderr] 
Nov 28 03:00:47.002 INFO [stderr] warning: value assigned to `a` is never read
Nov 28 03:00:47.002 INFO [stderr]   --> src/test/data_types.rs:32:12
Nov 28 03:00:47.002 INFO [stderr]    |
Nov 28 03:00:47.002 INFO [stderr] 32 |    let mut a: i32 = 8;
Nov 28 03:00:47.002 INFO [stderr]    |            ^
Nov 28 03:00:47.002 INFO [stderr] 
Nov 28 03:00:47.002 INFO [stderr] warning: unused variable: `a`
Nov 28 03:00:47.002 INFO [stderr]   --> src/test/data_types.rs:34:8
Nov 28 03:00:47.002 INFO [stderr]    |
Nov 28 03:00:47.002 INFO [stderr] 34 |    let a = a; // a is now _immutable_ and *locked* to 10 (util shadowed). 
Nov 28 03:00:47.002 INFO [stderr]    |        ^ help: consider using `_a` instead
Nov 28 03:00:47.002 INFO [stderr] 
Nov 28 03:00:47.003 INFO [stderr] warning: unused variable: `e`
Nov 28 03:00:47.003 INFO [stderr]   --> src/test/data_types.rs:37:8
Nov 28 03:00:47.003 INFO [stderr]    |
Nov 28 03:00:47.003 INFO [stderr] 37 |    let e = 5;
Nov 28 03:00:47.003 INFO [stderr]    |        ^ help: consider using `_e` instead
Nov 28 03:00:47.003 INFO [stderr] 
Nov 28 03:00:47.003 INFO [stderr] warning: unused variable: `e`
Nov 28 03:00:47.003 INFO [stderr]   --> src/test/data_types.rs:38:8
Nov 28 03:00:47.003 INFO [stderr]    |
Nov 28 03:00:47.003 INFO [stderr] 38 |    let e = "I am now a string!"; // e has changed types from i32 --> string
Nov 28 03:00:47.003 INFO [stderr]    |        ^ help: consider using `_e` instead
Nov 28 03:00:47.003 INFO [stderr] 
Nov 28 03:00:47.480 INFO [stderr] warning: unused variable: `y`
Nov 28 03:00:47.480 INFO [stderr]   --> src/test/conditionals_and_loops.rs:14:9
Nov 28 03:00:47.480 INFO [stderr]    |
Nov 28 03:00:47.480 INFO [stderr] 14 |     let y = if x == 5 { 10 } else { 15 }; // y : i32
Nov 28 03:00:47.480 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 28 03:00:47.480 INFO [stderr]    |
Nov 28 03:00:47.480 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 03:00:47.480 INFO [stderr] 
Nov 28 03:00:47.616 INFO [stderr] warning: unused variable: `x`
Nov 28 03:00:47.616 INFO [stderr]  --> src/test/vectors.rs:9:9
Nov 28 03:00:47.617 INFO [stderr]   |
Nov 28 03:00:47.617 INFO [stderr] 9 |     let x = Box::new(5);   // This is closer to the Type-Theoretic defn of `List<T>` := Nil | Cons(T, Box(List<T>))
Nov 28 03:00:47.617 INFO [stderr]   |         ^ help: consider using `_x` instead
Nov 28 03:00:47.617 INFO [stderr]   |
Nov 28 03:00:47.617 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 03:00:47.617 INFO [stderr] 
Nov 28 03:00:47.668 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.24s
Nov 28 03:00:47.668 INFO [stderr] su: No module specific data is present
Nov 28 03:00:48.742 INFO running `"docker" "inspect" "1005cc6bbd7ee2aa832118b0bb55d532abbaecacb11b437fed948459a6f0e53d"`
Nov 28 03:00:49.076 INFO running `"docker" "rm" "-f" "1005cc6bbd7ee2aa832118b0bb55d532abbaecacb11b437fed948459a6f0e53d"`
Nov 28 03:00:49.402 INFO [stdout] 1005cc6bbd7ee2aa832118b0bb55d532abbaecacb11b437fed948459a6f0e53d