Nov 16 23:11:10.641 INFO testing jssandh2/rust-systems against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 16 23:11:10.641 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt build --frozen" "-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 16 23:11:11.013 INFO [stdout] 3e2f3ceb68619ea0688dae0e953126eb17e4f6f68d16461c3313e9843fb539b5
Nov 16 23:11:11.021 INFO running `"docker" "start" "-a" "3e2f3ceb68619ea0688dae0e953126eb17e4f6f68d16461c3313e9843fb539b5"`
Nov 16 23:11:12.135 INFO [stderr] usermod: no changes
Nov 16 23:11:12.204 INFO [stderr]    Compiling rust-systems v0.0.1 (/source)
Nov 16 23:11:13.031 INFO [stderr] warning: unnecessary parentheses around assigned value
Nov 16 23:11:13.032 INFO [stderr]   --> src/test/primitive_types.rs:47:13
Nov 16 23:11:13.032 INFO [stderr]    |
Nov 16 23:11:13.033 INFO [stderr] 47 |     let b = (0);  // Normal zero
Nov 16 23:11:13.033 INFO [stderr]    |             ^^^ help: remove these parentheses
Nov 16 23:11:13.033 INFO [stderr]    |
Nov 16 23:11:13.034 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 16 23:11:13.034 INFO [stderr] 
Nov 16 23:11:13.043 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:13.044 INFO [stderr]  --> src/test/vectors.rs:9:9
Nov 16 23:11:13.044 INFO [stderr]   |
Nov 16 23:11:13.044 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 16 23:11:13.044 INFO [stderr]   |         ^ help: consider using `_x` instead
Nov 16 23:11:13.045 INFO [stderr]   |
Nov 16 23:11:13.045 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 16 23:11:13.045 INFO [stderr] 
Nov 16 23:11:13.071 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:13.072 INFO [stderr]  --> src/test/data_types.rs:3:9
Nov 16 23:11:13.072 INFO [stderr]   |
Nov 16 23:11:13.073 INFO [stderr] 3 |    let (y, z) = (1, 2); // Binding that uses _patterns_
Nov 16 23:11:13.073 INFO [stderr]   |         ^ help: consider using `_y` instead
Nov 16 23:11:13.073 INFO [stderr]   |
Nov 16 23:11:13.073 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 16 23:11:13.074 INFO [stderr] 
Nov 16 23:11:13.074 INFO [stderr] warning: unused variable: `z`
Nov 16 23:11:13.075 INFO [stderr]  --> src/test/data_types.rs:3:12
Nov 16 23:11:13.075 INFO [stderr]   |
Nov 16 23:11:13.075 INFO [stderr] 3 |    let (y, z) = (1, 2); // Binding that uses _patterns_
Nov 16 23:11:13.075 INFO [stderr]   |            ^ help: consider using `_z` instead
Nov 16 23:11:13.076 INFO [stderr] 
Nov 16 23:11:13.076 INFO [stderr] warning: unused variable: `k`
Nov 16 23:11:13.076 INFO [stderr]  --> src/test/data_types.rs:4:8
Nov 16 23:11:13.077 INFO [stderr]   |
Nov 16 23:11:13.077 INFO [stderr] 4 |    let k: i32 = 5; // Binding to _bind_ k to 5, with a static "int 32" type
Nov 16 23:11:13.077 INFO [stderr]   |        ^ help: consider using `_k` instead
Nov 16 23:11:13.078 INFO [stderr] 
Nov 16 23:11:13.078 INFO [stderr] warning: value assigned to `xp` is never read
Nov 16 23:11:13.078 INFO [stderr]   --> src/test/data_types.rs:11:12
Nov 16 23:11:13.078 INFO [stderr]    |
Nov 16 23:11:13.079 INFO [stderr] 11 |    let mut xp = 5;
Nov 16 23:11:13.079 INFO [stderr]    |            ^^
Nov 16 23:11:13.079 INFO [stderr]    |
Nov 16 23:11:13.080 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 16 23:11:13.080 INFO [stderr] 
Nov 16 23:11:13.080 INFO [stderr] warning: value assigned to `a` is never read
Nov 16 23:11:13.081 INFO [stderr]   --> src/test/data_types.rs:32:12
Nov 16 23:11:13.081 INFO [stderr]    |
Nov 16 23:11:13.081 INFO [stderr] 32 |    let mut a: i32 = 8;
Nov 16 23:11:13.082 INFO [stderr]    |            ^
Nov 16 23:11:13.082 INFO [stderr] 
Nov 16 23:11:13.082 INFO [stderr] warning: unused variable: `a`
Nov 16 23:11:13.087 INFO [stderr]   --> src/test/data_types.rs:34:8
Nov 16 23:11:13.087 INFO [stderr]    |
Nov 16 23:11:13.087 INFO [stderr] 34 |    let a = a; // a is now _immutable_ and *locked* to 10 (util shadowed). 
Nov 16 23:11:13.088 INFO [stderr]    |        ^ help: consider using `_a` instead
Nov 16 23:11:13.088 INFO [stderr] 
Nov 16 23:11:13.088 INFO [stderr] warning: unused variable: `e`
Nov 16 23:11:13.088 INFO [stderr]   --> src/test/data_types.rs:37:8
Nov 16 23:11:13.089 INFO [stderr]    |
Nov 16 23:11:13.089 INFO [stderr] 37 |    let e = 5;
Nov 16 23:11:13.089 INFO [stderr]    |        ^ help: consider using `_e` instead
Nov 16 23:11:13.089 INFO [stderr] 
Nov 16 23:11:13.090 INFO [stderr] warning: unused variable: `e`
Nov 16 23:11:13.090 INFO [stderr]   --> src/test/data_types.rs:38:8
Nov 16 23:11:13.090 INFO [stderr]    |
Nov 16 23:11:13.091 INFO [stderr] 38 |    let e = "I am now a string!"; // e has changed types from i32 --> string
Nov 16 23:11:13.091 INFO [stderr]    |        ^ help: consider using `_e` instead
Nov 16 23:11:13.091 INFO [stderr] 
Nov 16 23:11:13.115 INFO [stderr] warning: unnecessary parentheses around assigned value
Nov 16 23:11:13.115 INFO [stderr]   --> src/test/functions.rs:20:13
Nov 16 23:11:13.116 INFO [stderr]    |
Nov 16 23:11:13.116 INFO [stderr] 20 |     let x = (y = 6); // `x` has the value `()`, _NOT_ 6
Nov 16 23:11:13.116 INFO [stderr]    |             ^^^^^^^ help: remove these parentheses
Nov 16 23:11:13.117 INFO [stderr]    |
Nov 16 23:11:13.117 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 16 23:11:13.117 INFO [stderr] 
Nov 16 23:11:13.172 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:13.172 INFO [stderr]  --> src/test/primitive_types.rs:3:9
Nov 16 23:11:13.172 INFO [stderr]   |
Nov 16 23:11:13.173 INFO [stderr] 3 |     let x = true;
Nov 16 23:11:13.173 INFO [stderr]   |         ^ help: consider using `_x` instead
Nov 16 23:11:13.173 INFO [stderr]   |
Nov 16 23:11:13.174 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 16 23:11:13.174 INFO [stderr] 
Nov 16 23:11:13.174 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:13.175 INFO [stderr]  --> src/test/primitive_types.rs:4:9
Nov 16 23:11:13.175 INFO [stderr]   |
Nov 16 23:11:13.175 INFO [stderr] 4 |     let y: bool = false;
Nov 16 23:11:13.175 INFO [stderr]   |         ^ help: consider using `_y` instead
Nov 16 23:11:13.176 INFO [stderr] 
Nov 16 23:11:13.176 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:13.176 INFO [stderr]  --> src/test/primitive_types.rs:7:9
Nov 16 23:11:13.177 INFO [stderr]   |
Nov 16 23:11:13.177 INFO [stderr] 7 |     let x = 'x';
Nov 16 23:11:13.177 INFO [stderr]   |         ^ help: consider using `_x` instead
Nov 16 23:11:13.178 INFO [stderr] 
Nov 16 23:11:13.178 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:13.178 INFO [stderr]   --> src/test/primitive_types.rs:10:9
Nov 16 23:11:13.179 INFO [stderr]    |
Nov 16 23:11:13.179 INFO [stderr] 10 |     let x = 42; // `x` has type `i32`
Nov 16 23:11:13.179 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 16 23:11:13.179 INFO [stderr] 
Nov 16 23:11:13.180 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:13.180 INFO [stderr]   --> src/test/primitive_types.rs:11:9
Nov 16 23:11:13.180 INFO [stderr]    |
Nov 16 23:11:13.181 INFO [stderr] 11 |     let y = 1.0; // `y` has type `f64`
Nov 16 23:11:13.181 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 16 23:11:13.181 INFO [stderr] 
Nov 16 23:11:13.182 INFO [stderr] warning: unused variable: `a`
Nov 16 23:11:13.182 INFO [stderr]   --> src/test/primitive_types.rs:19:9
Nov 16 23:11:13.182 INFO [stderr]    |
Nov 16 23:11:13.182 INFO [stderr] 19 |     let a = [1, 2, 3]; // a : [i32; 3]
Nov 16 23:11:13.183 INFO [stderr]    |         ^ help: consider using `_a` instead
Nov 16 23:11:13.183 INFO [stderr] 
Nov 16 23:11:13.183 INFO [stderr] warning: unused variable: `m`
Nov 16 23:11:13.184 INFO [stderr]   --> src/test/primitive_types.rs:20:13
Nov 16 23:11:13.184 INFO [stderr]    |
Nov 16 23:11:13.184 INFO [stderr] 20 |     let mut m = [1, 2, 3]; // m : [i32; 3]
Nov 16 23:11:13.185 INFO [stderr]    |             ^ help: consider using `_m` instead
Nov 16 23:11:13.185 INFO [stderr] 
Nov 16 23:11:13.185 INFO [stderr] warning: unused variable: `names`
Nov 16 23:11:13.186 INFO [stderr]   --> src/test/primitive_types.rs:25:9
Nov 16 23:11:13.186 INFO [stderr]    |
Nov 16 23:11:13.186 INFO [stderr] 25 |     let names = ["Juspreet", "Cook", "Levin"]; // names : [&str; 3]
Nov 16 23:11:13.186 INFO [stderr]    |         ^^^^^ help: consider using `_names` instead
Nov 16 23:11:13.187 INFO [stderr] 
Nov 16 23:11:13.187 INFO [stderr] warning: unused variable: `b_duplicate`
Nov 16 23:11:13.187 INFO [stderr]   --> src/test/primitive_types.rs:30:9
Nov 16 23:11:13.188 INFO [stderr]    |
Nov 16 23:11:13.188 INFO [stderr] 30 |     let b_duplicate = &b[..];  // A slice containing everything in `a`
Nov 16 23:11:13.188 INFO [stderr]    |         ^^^^^^^^^^^ help: consider using `_b_duplicate` instead
Nov 16 23:11:13.189 INFO [stderr] 
Nov 16 23:11:13.189 INFO [stderr] warning: unused variable: `middle`
Nov 16 23:11:13.189 INFO [stderr]   --> src/test/primitive_types.rs:31:9
Nov 16 23:11:13.189 INFO [stderr]    |
Nov 16 23:11:13.190 INFO [stderr] 31 |     let middle = &b[1..4];     // A slice of `a` : [1, 2, 3]
Nov 16 23:11:13.190 INFO [stderr]    |         ^^^^^^ help: consider using `_middle` instead
Nov 16 23:11:13.190 INFO [stderr] 
Nov 16 23:11:13.191 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:13.191 INFO [stderr]   --> src/test/primitive_types.rs:35:9
Nov 16 23:11:13.191 INFO [stderr]    |
Nov 16 23:11:13.192 INFO [stderr] 35 |     let x = (1, "hello");
Nov 16 23:11:13.192 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 16 23:11:13.192 INFO [stderr] 
Nov 16 23:11:13.192 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:13.193 INFO [stderr]   --> src/test/primitive_types.rs:36:9
Nov 16 23:11:13.193 INFO [stderr]    |
Nov 16 23:11:13.193 INFO [stderr] 36 |     let y: (i32, &str) = (1, "hello");
Nov 16 23:11:13.194 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 16 23:11:13.194 INFO [stderr] 
Nov 16 23:11:13.194 INFO [stderr] warning: variable `x` is assigned to, but never used
Nov 16 23:11:13.199 INFO [stderr]   --> src/test/primitive_types.rs:38:13
Nov 16 23:11:13.199 INFO [stderr]    |
Nov 16 23:11:13.199 INFO [stderr] 38 |     let mut x = (1, 2);
Nov 16 23:11:13.199 INFO [stderr]    |             ^
Nov 16 23:11:13.200 INFO [stderr]    |
Nov 16 23:11:13.200 INFO [stderr]    = note: consider using `_x` instead
Nov 16 23:11:13.200 INFO [stderr] 
Nov 16 23:11:13.201 INFO [stderr] warning: value assigned to `x` is never read
Nov 16 23:11:13.201 INFO [stderr]   --> src/test/primitive_types.rs:40:5
Nov 16 23:11:13.201 INFO [stderr]    |
Nov 16 23:11:13.202 INFO [stderr] 40 |     x = y;   // A tuple is assigned to another (mutable) tuple, and type-check => The same Product-Type
Nov 16 23:11:13.202 INFO [stderr]    |     ^
Nov 16 23:11:13.202 INFO [stderr]    |
Nov 16 23:11:13.203 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 16 23:11:13.203 INFO [stderr] 
Nov 16 23:11:13.203 INFO [stderr] warning: unused variable: `a`
Nov 16 23:11:13.204 INFO [stderr]   --> src/test/primitive_types.rs:46:9
Nov 16 23:11:13.204 INFO [stderr]    |
Nov 16 23:11:13.204 INFO [stderr] 46 |     let a = (0,); // Tuple of arity 1
Nov 16 23:11:13.204 INFO [stderr]    |         ^ help: consider using `_a` instead
Nov 16 23:11:13.205 INFO [stderr] 
Nov 16 23:11:13.205 INFO [stderr] warning: unused variable: `b`
Nov 16 23:11:13.205 INFO [stderr]   --> src/test/primitive_types.rs:47:9
Nov 16 23:11:13.205 INFO [stderr]    |
Nov 16 23:11:13.206 INFO [stderr] 47 |     let b = (0);  // Normal zero
Nov 16 23:11:13.206 INFO [stderr]    |         ^ help: consider using `_b` instead
Nov 16 23:11:13.206 INFO [stderr] 
Nov 16 23:11:13.207 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:13.207 INFO [stderr]   --> src/test/primitive_types.rs:52:9
Nov 16 23:11:13.207 INFO [stderr]    |
Nov 16 23:11:13.207 INFO [stderr] 52 |     let x = tuple.0;
Nov 16 23:11:13.208 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 16 23:11:13.208 INFO [stderr] 
Nov 16 23:11:13.208 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:13.209 INFO [stderr]   --> src/test/primitive_types.rs:53:9
Nov 16 23:11:13.209 INFO [stderr]    |
Nov 16 23:11:13.209 INFO [stderr] 53 |     let y = tuple.1;
Nov 16 23:11:13.209 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 16 23:11:13.210 INFO [stderr] 
Nov 16 23:11:13.210 INFO [stderr] warning: unused variable: `z`
Nov 16 23:11:13.210 INFO [stderr]   --> src/test/primitive_types.rs:54:9
Nov 16 23:11:13.211 INFO [stderr]    |
Nov 16 23:11:13.211 INFO [stderr] 54 |     let z = tuple.2;
Nov 16 23:11:13.211 INFO [stderr]    |         ^ help: consider using `_z` instead
Nov 16 23:11:13.212 INFO [stderr] 
Nov 16 23:11:13.212 INFO [stderr] warning: variable does not need to be mutable
Nov 16 23:11:13.212 INFO [stderr]   --> src/test/primitive_types.rs:20:9
Nov 16 23:11:13.212 INFO [stderr]    |
Nov 16 23:11:13.213 INFO [stderr] 20 |     let mut m = [1, 2, 3]; // m : [i32; 3]
Nov 16 23:11:13.213 INFO [stderr]    |         ----^
Nov 16 23:11:13.213 INFO [stderr]    |         |
Nov 16 23:11:13.214 INFO [stderr]    |         help: remove this `mut`
Nov 16 23:11:13.214 INFO [stderr]    |
Nov 16 23:11:13.214 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 16 23:11:13.215 INFO [stderr] 
Nov 16 23:11:13.215 INFO [stderr] warning: function is never used: `foo`
Nov 16 23:11:13.215 INFO [stderr]   --> src/test/primitive_types.rs:57:5
Nov 16 23:11:13.215 INFO [stderr]    |
Nov 16 23:11:13.216 INFO [stderr] 57 |     fn foo(x: i32) -> i32 { x } // foo : i32 -> i32
Nov 16 23:11:13.216 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 16 23:11:13.216 INFO [stderr]    |
Nov 16 23:11:13.216 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 16 23:11:13.217 INFO [stderr] 
Nov 16 23:11:13.217 INFO [stderr] warning: function is never used: `two_foo`
Nov 16 23:11:13.217 INFO [stderr]   --> src/test/primitive_types.rs:59:5
Nov 16 23:11:13.218 INFO [stderr]    |
Nov 16 23:11:13.218 INFO [stderr] 59 |     fn two_foo(x: i32, y: i32) -> i32 { x + y } // two_foo : (i32 * i32) -> i32
Nov 16 23:11:13.218 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 23:11:13.223 INFO [stderr] 
Nov 16 23:11:13.243 INFO [stderr] warning: unreachable statement
Nov 16 23:11:13.243 INFO [stderr]   --> src/test/functions.rs:23:5
Nov 16 23:11:13.243 INFO [stderr]    |
Nov 16 23:11:13.243 INFO [stderr] 23 |     let x: String = diverges();
Nov 16 23:11:13.243 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 23:11:13.243 INFO [stderr]    |
Nov 16 23:11:13.243 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Nov 16 23:11:13.243 INFO [stderr] 
Nov 16 23:11:13.303 INFO [stderr] warning: variable `y` is assigned to, but never used
Nov 16 23:11:13.303 INFO [stderr]   --> src/test/functions.rs:19:13
Nov 16 23:11:13.303 INFO [stderr]    |
Nov 16 23:11:13.303 INFO [stderr] 19 |     let mut y = 5;
Nov 16 23:11:13.303 INFO [stderr]    |             ^
Nov 16 23:11:13.303 INFO [stderr]    |
Nov 16 23:11:13.303 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 16 23:11:13.303 INFO [stderr]    = note: consider using `_y` instead
Nov 16 23:11:13.303 INFO [stderr] 
Nov 16 23:11:13.303 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:13.303 INFO [stderr]   --> src/test/functions.rs:20:9
Nov 16 23:11:13.303 INFO [stderr]    |
Nov 16 23:11:13.303 INFO [stderr] 20 |     let x = (y = 6); // `x` has the value `()`, _NOT_ 6
Nov 16 23:11:13.303 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 16 23:11:13.303 INFO [stderr] 
Nov 16 23:11:13.303 INFO [stderr] warning: value assigned to `y` is never read
Nov 16 23:11:13.303 INFO [stderr]   --> src/test/functions.rs:20:14
Nov 16 23:11:13.303 INFO [stderr]    |
Nov 16 23:11:13.303 INFO [stderr] 20 |     let x = (y = 6); // `x` has the value `()`, _NOT_ 6
Nov 16 23:11:13.303 INFO [stderr]    |              ^
Nov 16 23:11:13.303 INFO [stderr]    |
Nov 16 23:11:13.303 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 16 23:11:13.303 INFO [stderr] 
Nov 16 23:11:13.303 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:13.303 INFO [stderr]   --> src/test/functions.rs:22:9
Nov 16 23:11:13.303 INFO [stderr]    |
Nov 16 23:11:13.303 INFO [stderr] 22 |     let x: i32 = diverges();
Nov 16 23:11:13.303 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 16 23:11:13.303 INFO [stderr] 
Nov 16 23:11:13.303 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:13.303 INFO [stderr]   --> src/test/functions.rs:23:9
Nov 16 23:11:13.303 INFO [stderr]    |
Nov 16 23:11:13.303 INFO [stderr] 23 |     let x: String = diverges();
Nov 16 23:11:13.303 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 16 23:11:13.303 INFO [stderr] 
Nov 16 23:11:13.303 INFO [stderr] warning: unused variable: `f`
Nov 16 23:11:13.303 INFO [stderr]   --> src/test/functions.rs:28:9
Nov 16 23:11:13.303 INFO [stderr]    |
Nov 16 23:11:13.303 INFO [stderr] 28 |     let f: fn(i32) -> i32;
Nov 16 23:11:13.303 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 16 23:11:13.303 INFO [stderr] 
Nov 16 23:11:13.303 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:13.303 INFO [stderr]   --> src/test/functions.rs:31:9
Nov 16 23:11:13.303 INFO [stderr]    |
Nov 16 23:11:13.303 INFO [stderr] 31 |     let y = f(5, 6);
Nov 16 23:11:13.303 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 16 23:11:13.303 INFO [stderr] 
Nov 16 23:11:13.311 INFO [stderr] warning: unused variable: `z`
Nov 16 23:11:13.311 INFO [stderr]   --> src/test/functions.rs:34:9
Nov 16 23:11:13.311 INFO [stderr]    |
Nov 16 23:11:13.312 INFO [stderr] 34 |     let z = sum_number(5, 6);
Nov 16 23:11:13.312 INFO [stderr]    |         ^ help: consider using `_z` instead
Nov 16 23:11:13.312 INFO [stderr] 
Nov 16 23:11:13.323 INFO [stderr] warning: function is never used: `sum_number_three`
Nov 16 23:11:13.323 INFO [stderr]  --> src/test/functions.rs:9:1
Nov 16 23:11:13.323 INFO [stderr]   |
Nov 16 23:11:13.323 INFO [stderr] 9 | fn sum_number_three(x: i32, y: i32, z:i32) -> i32 {
Nov 16 23:11:13.323 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 23:11:13.323 INFO [stderr]   |
Nov 16 23:11:13.323 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 16 23:11:13.323 INFO [stderr] 
Nov 16 23:11:13.779 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:13.779 INFO [stderr]   --> src/test/conditionals_and_loops.rs:14:9
Nov 16 23:11:13.780 INFO [stderr]    |
Nov 16 23:11:13.780 INFO [stderr] 14 |     let y = if x == 5 { 10 } else { 15 }; // y : i32
Nov 16 23:11:13.780 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 16 23:11:13.780 INFO [stderr]    |
Nov 16 23:11:13.780 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 16 23:11:13.780 INFO [stderr] 
Nov 16 23:11:14.379 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.20s
Nov 16 23:11:14.383 INFO [stderr] su: No module specific data is present
Nov 16 23:11:14.947 INFO running `"docker" "inspect" "3e2f3ceb68619ea0688dae0e953126eb17e4f6f68d16461c3313e9843fb539b5"`
Nov 16 23:11:15.239 INFO running `"docker" "rm" "-f" "3e2f3ceb68619ea0688dae0e953126eb17e4f6f68d16461c3313e9843fb539b5"`
Nov 16 23:11:15.536 INFO [stdout] 3e2f3ceb68619ea0688dae0e953126eb17e4f6f68d16461c3313e9843fb539b5
Nov 16 23:11:15.541 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen --no-run" "-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 16 23:11:15.999 INFO [stdout] 785c38e874b48f6205f7ddfa83af88e4065f3450d3866da77cbff647b286d422
Nov 16 23:11:16.007 INFO running `"docker" "start" "-a" "785c38e874b48f6205f7ddfa83af88e4065f3450d3866da77cbff647b286d422"`
Nov 16 23:11:17.346 INFO [stderr] usermod: no changes
Nov 16 23:11:17.403 INFO [stderr]    Compiling rust-systems v0.0.1 (/source)
Nov 16 23:11:18.431 INFO [stderr] warning: unnecessary parentheses around assigned value
Nov 16 23:11:18.431 INFO [stderr]   --> src/test/primitive_types.rs:47:13
Nov 16 23:11:18.431 INFO [stderr]    |
Nov 16 23:11:18.431 INFO [stderr] 47 |     let b = (0);  // Normal zero
Nov 16 23:11:18.431 INFO [stderr]    |             ^^^ help: remove these parentheses
Nov 16 23:11:18.451 INFO [stderr]    |
Nov 16 23:11:18.451 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 16 23:11:18.451 INFO [stderr] 
Nov 16 23:11:18.467 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:18.467 INFO [stderr]  --> src/test/vectors.rs:9:9
Nov 16 23:11:18.467 INFO [stderr]   |
Nov 16 23:11:18.467 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 16 23:11:18.467 INFO [stderr]   |         ^ help: consider using `_x` instead
Nov 16 23:11:18.467 INFO [stderr]   |
Nov 16 23:11:18.467 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 16 23:11:18.467 INFO [stderr] 
Nov 16 23:11:18.695 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:18.695 INFO [stderr]  --> src/test/primitive_types.rs:3:9
Nov 16 23:11:18.695 INFO [stderr]   |
Nov 16 23:11:18.695 INFO [stderr] 3 |     let x = true;
Nov 16 23:11:18.695 INFO [stderr]   |         ^ help: consider using `_x` instead
Nov 16 23:11:18.695 INFO [stderr]   |
Nov 16 23:11:18.695 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 16 23:11:18.695 INFO [stderr] 
Nov 16 23:11:18.695 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:18.695 INFO [stderr]  --> src/test/primitive_types.rs:4:9
Nov 16 23:11:18.695 INFO [stderr]   |
Nov 16 23:11:18.695 INFO [stderr] 4 |     let y: bool = false;
Nov 16 23:11:18.695 INFO [stderr]   |         ^ help: consider using `_y` instead
Nov 16 23:11:18.695 INFO [stderr] 
Nov 16 23:11:18.695 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:18.695 INFO [stderr]  --> src/test/primitive_types.rs:7:9
Nov 16 23:11:18.695 INFO [stderr]   |
Nov 16 23:11:18.695 INFO [stderr] 7 |     let x = 'x';
Nov 16 23:11:18.695 INFO [stderr]   |         ^ help: consider using `_x` instead
Nov 16 23:11:18.695 INFO [stderr] 
Nov 16 23:11:18.695 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:18.695 INFO [stderr]   --> src/test/primitive_types.rs:10:9
Nov 16 23:11:18.695 INFO [stderr]    |
Nov 16 23:11:18.695 INFO [stderr] 10 |     let x = 42; // `x` has type `i32`
Nov 16 23:11:18.695 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 16 23:11:18.695 INFO [stderr] 
Nov 16 23:11:18.695 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:18.695 INFO [stderr]   --> src/test/primitive_types.rs:11:9
Nov 16 23:11:18.695 INFO [stderr]    |
Nov 16 23:11:18.695 INFO [stderr] 11 |     let y = 1.0; // `y` has type `f64`
Nov 16 23:11:18.695 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 16 23:11:18.695 INFO [stderr] 
Nov 16 23:11:18.695 INFO [stderr] warning: unused variable: `a`
Nov 16 23:11:18.695 INFO [stderr]   --> src/test/primitive_types.rs:19:9
Nov 16 23:11:18.695 INFO [stderr]    |
Nov 16 23:11:18.695 INFO [stderr] 19 |     let a = [1, 2, 3]; // a : [i32; 3]
Nov 16 23:11:18.695 INFO [stderr]    |         ^ help: consider using `_a` instead
Nov 16 23:11:18.695 INFO [stderr] 
Nov 16 23:11:18.695 INFO [stderr] warning: unused variable: `m`
Nov 16 23:11:18.697 INFO [stderr]   --> src/test/primitive_types.rs:20:13
Nov 16 23:11:18.697 INFO [stderr]    |
Nov 16 23:11:18.697 INFO [stderr] 20 |     let mut m = [1, 2, 3]; // m : [i32; 3]
Nov 16 23:11:18.697 INFO [stderr]    |             ^ help: consider using `_m` instead
Nov 16 23:11:18.697 INFO [stderr] 
Nov 16 23:11:18.697 INFO [stderr] warning: unused variable: `names`
Nov 16 23:11:18.697 INFO [stderr]   --> src/test/primitive_types.rs:25:9
Nov 16 23:11:18.697 INFO [stderr]    |
Nov 16 23:11:18.697 INFO [stderr] 25 |     let names = ["Juspreet", "Cook", "Levin"]; // names : [&str; 3]
Nov 16 23:11:18.697 INFO [stderr]    |         ^^^^^ help: consider using `_names` instead
Nov 16 23:11:18.697 INFO [stderr] 
Nov 16 23:11:18.697 INFO [stderr] warning: unused variable: `b_duplicate`
Nov 16 23:11:18.697 INFO [stderr]   --> src/test/primitive_types.rs:30:9
Nov 16 23:11:18.697 INFO [stderr]    |
Nov 16 23:11:18.697 INFO [stderr] 30 |     let b_duplicate = &b[..];  // A slice containing everything in `a`
Nov 16 23:11:18.697 INFO [stderr]    |         ^^^^^^^^^^^ help: consider using `_b_duplicate` instead
Nov 16 23:11:18.697 INFO [stderr] 
Nov 16 23:11:18.697 INFO [stderr] warning: unused variable: `middle`
Nov 16 23:11:18.697 INFO [stderr]   --> src/test/primitive_types.rs:31:9
Nov 16 23:11:18.697 INFO [stderr]    |
Nov 16 23:11:18.697 INFO [stderr] 31 |     let middle = &b[1..4];     // A slice of `a` : [1, 2, 3]
Nov 16 23:11:18.697 INFO [stderr]    |         ^^^^^^ help: consider using `_middle` instead
Nov 16 23:11:18.697 INFO [stderr] 
Nov 16 23:11:18.697 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:18.697 INFO [stderr]   --> src/test/primitive_types.rs:35:9
Nov 16 23:11:18.697 INFO [stderr]    |
Nov 16 23:11:18.697 INFO [stderr] 35 |     let x = (1, "hello");
Nov 16 23:11:18.697 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 16 23:11:18.697 INFO [stderr] 
Nov 16 23:11:18.697 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:18.697 INFO [stderr]   --> src/test/primitive_types.rs:36:9
Nov 16 23:11:18.697 INFO [stderr]    |
Nov 16 23:11:18.697 INFO [stderr] 36 |     let y: (i32, &str) = (1, "hello");
Nov 16 23:11:18.697 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 16 23:11:18.697 INFO [stderr] 
Nov 16 23:11:18.697 INFO [stderr] warning: variable `x` is assigned to, but never used
Nov 16 23:11:18.697 INFO [stderr]   --> src/test/primitive_types.rs:38:13
Nov 16 23:11:18.697 INFO [stderr]    |
Nov 16 23:11:18.697 INFO [stderr] 38 |     let mut x = (1, 2);
Nov 16 23:11:18.697 INFO [stderr]    |             ^
Nov 16 23:11:18.697 INFO [stderr]    |
Nov 16 23:11:18.697 INFO [stderr]    = note: consider using `_x` instead
Nov 16 23:11:18.697 INFO [stderr] 
Nov 16 23:11:18.697 INFO [stderr] warning: value assigned to `x` is never read
Nov 16 23:11:18.697 INFO [stderr]   --> src/test/primitive_types.rs:40:5
Nov 16 23:11:18.697 INFO [stderr]    |
Nov 16 23:11:18.697 INFO [stderr] 40 |     x = y;   // A tuple is assigned to another (mutable) tuple, and type-check => The same Product-Type
Nov 16 23:11:18.697 INFO [stderr]    |     ^
Nov 16 23:11:18.697 INFO [stderr]    |
Nov 16 23:11:18.697 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 16 23:11:18.697 INFO [stderr] 
Nov 16 23:11:18.697 INFO [stderr] warning: unused variable: `a`
Nov 16 23:11:18.697 INFO [stderr]   --> src/test/primitive_types.rs:46:9
Nov 16 23:11:18.697 INFO [stderr]    |
Nov 16 23:11:18.697 INFO [stderr] 46 |     let a = (0,); // Tuple of arity 1
Nov 16 23:11:18.697 INFO [stderr]    |         ^ help: consider using `_a` instead
Nov 16 23:11:18.697 INFO [stderr] 
Nov 16 23:11:18.697 INFO [stderr] warning: unused variable: `b`
Nov 16 23:11:18.697 INFO [stderr]   --> src/test/primitive_types.rs:47:9
Nov 16 23:11:18.698 INFO [stderr]    |
Nov 16 23:11:18.698 INFO [stderr] 47 |     let b = (0);  // Normal zero
Nov 16 23:11:18.698 INFO [stderr]    |         ^ help: consider using `_b` instead
Nov 16 23:11:18.698 INFO [stderr] 
Nov 16 23:11:18.698 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:18.698 INFO [stderr]   --> src/test/primitive_types.rs:52:9
Nov 16 23:11:18.698 INFO [stderr]    |
Nov 16 23:11:18.698 INFO [stderr] 52 |     let x = tuple.0;
Nov 16 23:11:18.698 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 16 23:11:18.698 INFO [stderr] 
Nov 16 23:11:18.698 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:18.698 INFO [stderr]   --> src/test/primitive_types.rs:53:9
Nov 16 23:11:18.698 INFO [stderr]    |
Nov 16 23:11:18.698 INFO [stderr] 53 |     let y = tuple.1;
Nov 16 23:11:18.698 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 16 23:11:18.698 INFO [stderr] 
Nov 16 23:11:18.698 INFO [stderr] warning: unused variable: `z`
Nov 16 23:11:18.698 INFO [stderr]   --> src/test/primitive_types.rs:54:9
Nov 16 23:11:18.698 INFO [stderr]    |
Nov 16 23:11:18.698 INFO [stderr] 54 |     let z = tuple.2;
Nov 16 23:11:18.698 INFO [stderr]    |         ^ help: consider using `_z` instead
Nov 16 23:11:18.698 INFO [stderr] 
Nov 16 23:11:18.763 INFO [stderr] warning: variable does not need to be mutable
Nov 16 23:11:18.763 INFO [stderr]   --> src/test/primitive_types.rs:20:9
Nov 16 23:11:18.763 INFO [stderr]    |
Nov 16 23:11:18.763 INFO [stderr] 20 |     let mut m = [1, 2, 3]; // m : [i32; 3]
Nov 16 23:11:18.763 INFO [stderr]    |         ----^
Nov 16 23:11:18.763 INFO [stderr]    |         |
Nov 16 23:11:18.763 INFO [stderr]    |         help: remove this `mut`
Nov 16 23:11:18.763 INFO [stderr]    |
Nov 16 23:11:18.763 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 16 23:11:18.763 INFO [stderr] 
Nov 16 23:11:19.119 INFO [stderr] warning: unnecessary parentheses around assigned value
Nov 16 23:11:19.119 INFO [stderr]   --> src/test/functions.rs:20:13
Nov 16 23:11:19.119 INFO [stderr]    |
Nov 16 23:11:19.119 INFO [stderr] 20 |     let x = (y = 6); // `x` has the value `()`, _NOT_ 6
Nov 16 23:11:19.119 INFO [stderr]    |             ^^^^^^^ help: remove these parentheses
Nov 16 23:11:19.119 INFO [stderr]    |
Nov 16 23:11:19.119 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 16 23:11:19.119 INFO [stderr] 
Nov 16 23:11:19.167 INFO [stderr] warning: unreachable statement
Nov 16 23:11:19.167 INFO [stderr]   --> src/test/functions.rs:23:5
Nov 16 23:11:19.167 INFO [stderr]    |
Nov 16 23:11:19.167 INFO [stderr] 23 |     let x: String = diverges();
Nov 16 23:11:19.167 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 23:11:19.187 INFO [stderr]    |
Nov 16 23:11:19.187 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Nov 16 23:11:19.187 INFO [stderr] 
Nov 16 23:11:19.197 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:19.197 INFO [stderr]   --> src/test/conditionals_and_loops.rs:14:9
Nov 16 23:11:19.197 INFO [stderr]    |
Nov 16 23:11:19.197 INFO [stderr] 14 |     let y = if x == 5 { 10 } else { 15 }; // y : i32
Nov 16 23:11:19.197 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 16 23:11:19.197 INFO [stderr]    |
Nov 16 23:11:19.197 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 16 23:11:19.197 INFO [stderr] 
Nov 16 23:11:19.203 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:19.203 INFO [stderr]  --> src/test/data_types.rs:3:9
Nov 16 23:11:19.203 INFO [stderr]   |
Nov 16 23:11:19.203 INFO [stderr] 3 |    let (y, z) = (1, 2); // Binding that uses _patterns_
Nov 16 23:11:19.203 INFO [stderr]   |         ^ help: consider using `_y` instead
Nov 16 23:11:19.207 INFO [stderr] warning: variable `y` is assigned to, but never used
Nov 16 23:11:19.207 INFO [stderr]   --> src/test/functions.rs:19:13
Nov 16 23:11:19.207 INFO [stderr]    |
Nov 16 23:11:19.207 INFO [stderr] 19 |     let mut y = 5;
Nov 16 23:11:19.207 INFO [stderr]    |             ^
Nov 16 23:11:19.207 INFO [stderr]    |
Nov 16 23:11:19.207 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 16 23:11:19.207 INFO [stderr]    = note: consider using `_y` instead
Nov 16 23:11:19.207 INFO [stderr] 
Nov 16 23:11:19.207 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:19.207 INFO [stderr]   --> src/test/functions.rs:20:9
Nov 16 23:11:19.207 INFO [stderr]    |
Nov 16 23:11:19.207 INFO [stderr] 20 |     let x = (y = 6); // `x` has the value `()`, _NOT_ 6
Nov 16 23:11:19.207 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 16 23:11:19.207 INFO [stderr] 
Nov 16 23:11:19.207 INFO [stderr] warning: value assigned to `y` is never read
Nov 16 23:11:19.207 INFO [stderr]   --> src/test/functions.rs:20:14
Nov 16 23:11:19.207 INFO [stderr]    |
Nov 16 23:11:19.208 INFO [stderr] 20 |     let x = (y = 6); // `x` has the value `()`, _NOT_ 6
Nov 16 23:11:19.208 INFO [stderr]    |              ^
Nov 16 23:11:19.208 INFO [stderr]    |
Nov 16 23:11:19.208 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 16 23:11:19.208 INFO [stderr] 
Nov 16 23:11:19.208 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:19.208 INFO [stderr]   --> src/test/functions.rs:22:9
Nov 16 23:11:19.208 INFO [stderr]    |
Nov 16 23:11:19.208 INFO [stderr] 22 |     let x: i32 = diverges();
Nov 16 23:11:19.208 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 16 23:11:19.208 INFO [stderr] 
Nov 16 23:11:19.208 INFO [stderr] warning: unused variable: `x`
Nov 16 23:11:19.208 INFO [stderr]   --> src/test/functions.rs:23:9
Nov 16 23:11:19.208 INFO [stderr]    |
Nov 16 23:11:19.208 INFO [stderr] 23 |     let x: String = diverges();
Nov 16 23:11:19.208 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 16 23:11:19.208 INFO [stderr] 
Nov 16 23:11:19.208 INFO [stderr] warning: unused variable: `f`
Nov 16 23:11:19.208 INFO [stderr]   --> src/test/functions.rs:28:9
Nov 16 23:11:19.208 INFO [stderr]    |
Nov 16 23:11:19.208 INFO [stderr] 28 |     let f: fn(i32) -> i32;
Nov 16 23:11:19.208 INFO [stderr]    |         ^ help: consider using `_f` instead
Nov 16 23:11:19.208 INFO [stderr] 
Nov 16 23:11:19.208 INFO [stderr] warning: unused variable: `y`
Nov 16 23:11:19.208 INFO [stderr]   --> src/test/functions.rs:31:9
Nov 16 23:11:19.208 INFO [stderr]    |
Nov 16 23:11:19.208 INFO [stderr] 31 |     let y = f(5, 6);
Nov 16 23:11:19.208 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 16 23:11:19.208 INFO [stderr] 
Nov 16 23:11:19.208 INFO [stderr] warning: unused variable: `z`
Nov 16 23:11:19.208 INFO [stderr]   --> src/test/functions.rs:34:9
Nov 16 23:11:19.208 INFO [stderr]    |
Nov 16 23:11:19.208 INFO [stderr] 34 |     let z = sum_number(5, 6);
Nov 16 23:11:19.208 INFO [stderr]    |         ^ help: consider using `_z` instead
Nov 16 23:11:19.208 INFO [stderr] 
Nov 16 23:11:19.208 INFO [stderr]   |
Nov 16 23:11:19.208 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 16 23:11:19.208 INFO [stderr] 
Nov 16 23:11:19.208 INFO [stderr] warning: unused variable: `z`
Nov 16 23:11:19.208 INFO [stderr]  --> src/test/data_types.rs:3:12
Nov 16 23:11:19.208 INFO [stderr]   |
Nov 16 23:11:19.208 INFO [stderr] 3 |    let (y, z) = (1, 2); // Binding that uses _patterns_
Nov 16 23:11:19.208 INFO [stderr]   |            ^ help: consider using `_z` instead
Nov 16 23:11:19.208 INFO [stderr] 
Nov 16 23:11:19.208 INFO [stderr] warning: unused variable: `k`
Nov 16 23:11:19.208 INFO [stderr]  --> src/test/data_types.rs:4:8
Nov 16 23:11:19.208 INFO [stderr]   |
Nov 16 23:11:19.208 INFO [stderr] 4 |    let k: i32 = 5; // Binding to _bind_ k to 5, with a static "int 32" type
Nov 16 23:11:19.208 INFO [stderr]   |        ^ help: consider using `_k` instead
Nov 16 23:11:19.208 INFO [stderr] 
Nov 16 23:11:19.208 INFO [stderr] warning: value assigned to `xp` is never read
Nov 16 23:11:19.208 INFO [stderr]   --> src/test/data_types.rs:11:12
Nov 16 23:11:19.208 INFO [stderr]    |
Nov 16 23:11:19.208 INFO [stderr] 11 |    let mut xp = 5;
Nov 16 23:11:19.208 INFO [stderr]    |            ^^
Nov 16 23:11:19.208 INFO [stderr]    |
Nov 16 23:11:19.208 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 16 23:11:19.208 INFO [stderr] 
Nov 16 23:11:19.208 INFO [stderr] warning: value assigned to `a` is never read
Nov 16 23:11:19.208 INFO [stderr]   --> src/test/data_types.rs:32:12
Nov 16 23:11:19.208 INFO [stderr]    |
Nov 16 23:11:19.208 INFO [stderr] 32 |    let mut a: i32 = 8;
Nov 16 23:11:19.208 INFO [stderr]    |            ^
Nov 16 23:11:19.208 INFO [stderr] 
Nov 16 23:11:19.208 INFO [stderr] warning: unused variable: `a`
Nov 16 23:11:19.208 INFO [stderr]   --> src/test/data_types.rs:34:8
Nov 16 23:11:19.208 INFO [stderr]    |
Nov 16 23:11:19.208 INFO [stderr] 34 |    let a = a; // a is now _immutable_ and *locked* to 10 (util shadowed). 
Nov 16 23:11:19.208 INFO [stderr]    |        ^ help: consider using `_a` instead
Nov 16 23:11:19.208 INFO [stderr] 
Nov 16 23:11:19.208 INFO [stderr] warning: unused variable: `e`
Nov 16 23:11:19.208 INFO [stderr]   --> src/test/data_types.rs:37:8
Nov 16 23:11:19.208 INFO [stderr]    |
Nov 16 23:11:19.208 INFO [stderr] 37 |    let e = 5;
Nov 16 23:11:19.208 INFO [stderr]    |        ^ help: consider using `_e` instead
Nov 16 23:11:19.223 INFO [stderr] 
Nov 16 23:11:19.223 INFO [stderr] warning: unused variable: `e`
Nov 16 23:11:19.223 INFO [stderr]   --> src/test/data_types.rs:38:8
Nov 16 23:11:19.223 INFO [stderr]    |
Nov 16 23:11:19.223 INFO [stderr] 38 |    let e = "I am now a string!"; // e has changed types from i32 --> string
Nov 16 23:11:19.223 INFO [stderr]    |        ^ help: consider using `_e` instead
Nov 16 23:11:19.223 INFO [stderr] 
Nov 16 23:11:19.231 INFO [stderr] warning: function is never used: `sum_number_three`
Nov 16 23:11:19.231 INFO [stderr]  --> src/test/functions.rs:9:1
Nov 16 23:11:19.231 INFO [stderr]   |
Nov 16 23:11:19.231 INFO [stderr] 9 | fn sum_number_three(x: i32, y: i32, z:i32) -> i32 {
Nov 16 23:11:19.231 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 23:11:19.231 INFO [stderr]   |
Nov 16 23:11:19.231 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 16 23:11:19.231 INFO [stderr] 
Nov 16 23:11:20.055 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.68s
Nov 16 23:11:20.063 INFO [stderr] su: No module specific data is present
Nov 16 23:11:20.731 INFO running `"docker" "inspect" "785c38e874b48f6205f7ddfa83af88e4065f3450d3866da77cbff647b286d422"`
Nov 16 23:11:21.101 INFO running `"docker" "rm" "-f" "785c38e874b48f6205f7ddfa83af88e4065f3450d3866da77cbff647b286d422"`
Nov 16 23:11:21.423 INFO [stdout] 785c38e874b48f6205f7ddfa83af88e4065f3450d3866da77cbff647b286d422
Nov 16 23:11:21.431 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen" "-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 16 23:11:21.807 INFO [stdout] bf22e86d2b809042ad79498d893580173b0a1e46cce2dfda4ebdf5e208cb57c1
Nov 16 23:11:21.807 INFO running `"docker" "start" "-a" "bf22e86d2b809042ad79498d893580173b0a1e46cce2dfda4ebdf5e208cb57c1"`
Nov 16 23:11:22.983 INFO [stderr] usermod: no changes
Nov 16 23:11:23.052 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Nov 16 23:11:23.057 INFO [stderr]      Running /target/debug/deps/conditionals_and_loops-f6f863a45f10f2bf
Nov 16 23:11:23.071 INFO [stdout] 
Nov 16 23:11:23.071 INFO [stdout] running 0 tests
Nov 16 23:11:23.071 INFO [stdout] 
Nov 16 23:11:23.071 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 23:11:23.071 INFO [stdout] 
Nov 16 23:11:23.071 INFO [stdout] 
Nov 16 23:11:23.071 INFO [stdout] running 0 tests
Nov 16 23:11:23.071 INFO [stdout] 
Nov 16 23:11:23.071 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 23:11:23.071 INFO [stdout] 
Nov 16 23:11:23.071 INFO [stdout] 
Nov 16 23:11:23.071 INFO [stdout] running 0 tests
Nov 16 23:11:23.071 INFO [stdout] 
Nov 16 23:11:23.071 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 23:11:23.071 INFO [stdout] 
Nov 16 23:11:23.071 INFO [stderr]      Running /target/debug/deps/data_types-f5bc9ee88d89352d
Nov 16 23:11:23.071 INFO [stderr]      Running /target/debug/deps/functions-856d18e684e67410
Nov 16 23:11:23.071 INFO [stderr]      Running /target/debug/deps/hello_world-55718a4b8d45e06a
Nov 16 23:11:23.079 INFO [stdout] 
Nov 16 23:11:23.079 INFO [stdout] running 0 tests
Nov 16 23:11:23.079 INFO [stdout] 
Nov 16 23:11:23.079 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 23:11:23.079 INFO [stdout] 
Nov 16 23:11:23.079 INFO [stdout] 
Nov 16 23:11:23.079 INFO [stdout] running 0 tests
Nov 16 23:11:23.079 INFO [stdout] 
Nov 16 23:11:23.079 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 23:11:23.079 INFO [stdout] 
Nov 16 23:11:23.079 INFO [stdout] 
Nov 16 23:11:23.079 INFO [stdout] running 0 tests
Nov 16 23:11:23.079 INFO [stdout] 
Nov 16 23:11:23.079 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 23:11:23.079 INFO [stdout] 
Nov 16 23:11:23.079 INFO [stderr]      Running /target/debug/deps/primitive_types-083d9fcdec0e97a1
Nov 16 23:11:23.079 INFO [stderr]      Running /target/debug/deps/vectors-2a18f7f78a52f7f6
Nov 16 23:11:23.087 INFO [stderr] su: No module specific data is present
Nov 16 23:11:23.765 INFO running `"docker" "inspect" "bf22e86d2b809042ad79498d893580173b0a1e46cce2dfda4ebdf5e208cb57c1"`
Nov 16 23:11:24.067 INFO running `"docker" "rm" "-f" "bf22e86d2b809042ad79498d893580173b0a1e46cce2dfda4ebdf5e208cb57c1"`
Nov 16 23:11:24.463 INFO [stdout] bf22e86d2b809042ad79498d893580173b0a1e46cce2dfda4ebdf5e208cb57c1