Oct 12 19:58:17.431 INFO checking java007hf/Rust_demo against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 19:58:17.431 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-1/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 19:58:17.712 INFO blam! 87378837d4f58645acef694e16936578f23d2d0bd80b7050fd816ac6f5f95f68
Oct 12 19:58:17.715 INFO running `"docker" "start" "-a" "87378837d4f58645acef694e16936578f23d2d0bd80b7050fd816ac6f5f95f68"`
Oct 12 19:58:18.128 INFO kablam! usermod: no changes
Oct 12 19:58:18.173 INFO kablam!     Checking rust_demo v0.1.0 (/source)
Oct 12 19:58:18.540 INFO kablam! warning: unnecessary parentheses around `for` head expression
Oct 12 19:58:18.540 INFO kablam!    --> src/main.rs:214:14
Oct 12 19:58:18.540 INFO kablam!     |
Oct 12 19:58:18.540 INFO kablam! 214 |     for x in (0..11) {
Oct 12 19:58:18.540 INFO kablam!     |              ^^^^^^^ help: remove these parentheses
Oct 12 19:58:18.540 INFO kablam!     |
Oct 12 19:58:18.540 INFO kablam!     = note: #[warn(unused_parens)] on by default
Oct 12 19:58:18.540 INFO kablam! 
Oct 12 19:58:18.620 INFO kablam! warning: unnecessary parentheses around `for` head expression
Oct 12 19:58:18.620 INFO kablam!    --> src/main.rs:214:14
Oct 12 19:58:18.620 INFO kablam!     |
Oct 12 19:58:18.620 INFO kablam! 214 |     for x in (0..11) {
Oct 12 19:58:18.620 INFO kablam!     |              ^^^^^^^ help: remove these parentheses
Oct 12 19:58:18.620 INFO kablam!     |
Oct 12 19:58:18.620 INFO kablam!     = note: #[warn(unused_parens)] on by default
Oct 12 19:58:18.620 INFO kablam! 
Oct 12 19:58:18.653 INFO kablam! warning: variable `inferred_type` is assigned to, but never used
Oct 12 19:58:18.653 INFO kablam!   --> src/main.rs:19:13
Oct 12 19:58:18.653 INFO kablam!    |
Oct 12 19:58:18.653 INFO kablam! 19 |     let mut inferred_type = 12; // Type i64 is inferred from another line
Oct 12 19:58:18.653 INFO kablam!    |             ^^^^^^^^^^^^^
Oct 12 19:58:18.653 INFO kablam!    |
Oct 12 19:58:18.653 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 19:58:18.653 INFO kablam!    = note: consider using `_inferred_type` instead
Oct 12 19:58:18.653 INFO kablam! 
Oct 12 19:58:18.653 INFO kablam! warning: value assigned to `inferred_type` is never read
Oct 12 19:58:18.653 INFO kablam!   --> src/main.rs:20:5
Oct 12 19:58:18.653 INFO kablam!    |
Oct 12 19:58:18.653 INFO kablam! 20 |     inferred_type = 4294967296i64;
Oct 12 19:58:18.653 INFO kablam!    |     ^^^^^^^^^^^^^
Oct 12 19:58:18.653 INFO kablam!    |
Oct 12 19:58:18.653 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 12 19:58:18.653 INFO kablam! 
Oct 12 19:58:18.653 INFO kablam! warning: variable `mutable` is assigned to, but never used
Oct 12 19:58:18.653 INFO kablam!   --> src/main.rs:23:13
Oct 12 19:58:18.653 INFO kablam!    |
Oct 12 19:58:18.653 INFO kablam! 23 |     let mut mutable = 12; // Mutable `i32`
Oct 12 19:58:18.653 INFO kablam!    |             ^^^^^^^
Oct 12 19:58:18.653 INFO kablam!    |
Oct 12 19:58:18.654 INFO kablam!    = note: consider using `_mutable` instead
Oct 12 19:58:18.654 INFO kablam! 
Oct 12 19:58:18.654 INFO kablam! warning: value assigned to `mutable` is never read
Oct 12 19:58:18.654 INFO kablam!   --> src/main.rs:24:5
Oct 12 19:58:18.654 INFO kablam!    |
Oct 12 19:58:18.654 INFO kablam! 24 |     mutable = 21;
Oct 12 19:58:18.654 INFO kablam!    |     ^^^^^^^
Oct 12 19:58:18.654 INFO kablam! 
Oct 12 19:58:18.654 INFO kablam! warning: value assigned to `mutable` is never read
Oct 12 19:58:18.654 INFO kablam!   --> src/main.rs:27:5
Oct 12 19:58:18.654 INFO kablam!    |
Oct 12 19:58:18.654 INFO kablam! 27 |     mutable = 11;
Oct 12 19:58:18.654 INFO kablam!    |     ^^^^^^^
Oct 12 19:58:18.654 INFO kablam! 
Oct 12 19:58:18.654 INFO kablam! warning: unused variable: `mutable`
Oct 12 19:58:18.654 INFO kablam!   --> src/main.rs:30:9
Oct 12 19:58:18.654 INFO kablam!    |
Oct 12 19:58:18.654 INFO kablam! 30 |     let mutable = true;
Oct 12 19:58:18.654 INFO kablam!    |         ^^^^^^^ help: consider using `_mutable` instead
Oct 12 19:58:18.654 INFO kablam! 
Oct 12 19:58:18.654 INFO kablam! warning: unused variable: `a`
Oct 12 19:58:18.654 INFO kablam!   --> src/main.rs:36:9
Oct 12 19:58:18.654 INFO kablam!    |
Oct 12 19:58:18.654 INFO kablam! 36 |     let a = [1, 2, 3]; // a: [i32; 3]
Oct 12 19:58:18.654 INFO kablam!    |         ^ help: consider using `_a` instead
Oct 12 19:58:18.654 INFO kablam! 
Oct 12 19:58:18.654 INFO kablam! warning: unused variable: `middle`
Oct 12 19:58:18.654 INFO kablam!   --> src/main.rs:61:9
Oct 12 19:58:18.654 INFO kablam!    |
Oct 12 19:58:18.654 INFO kablam! 61 |     let middle = &a[1..3];
Oct 12 19:58:18.654 INFO kablam!    |         ^^^^^^ help: consider using `_middle` instead
Oct 12 19:58:18.654 INFO kablam! 
Oct 12 19:58:18.654 INFO kablam! warning: unused variable: `a`
Oct 12 19:58:18.654 INFO kablam!   --> src/main.rs:67:10
Oct 12 19:58:18.654 INFO kablam!    |
Oct 12 19:58:18.654 INFO kablam! 67 |     let (a, b, c) = y;
Oct 12 19:58:18.654 INFO kablam!    |          ^ help: consider using `_a` instead
Oct 12 19:58:18.654 INFO kablam! 
Oct 12 19:58:18.654 INFO kablam! warning: unused variable: `b`
Oct 12 19:58:18.654 INFO kablam!   --> src/main.rs:67:13
Oct 12 19:58:18.654 INFO kablam!    |
Oct 12 19:58:18.654 INFO kablam! 67 |     let (a, b, c) = y;
Oct 12 19:58:18.654 INFO kablam!    |             ^ help: consider using `_b` instead
Oct 12 19:58:18.654 INFO kablam! 
Oct 12 19:58:18.654 INFO kablam! warning: unused variable: `y`
Oct 12 19:58:18.654 INFO kablam!   --> src/main.rs:73:9
Oct 12 19:58:18.654 INFO kablam!    |
Oct 12 19:58:18.654 INFO kablam! 73 |     let y = tuple.1;
Oct 12 19:58:18.654 INFO kablam!    |         ^ help: consider using `_y` instead
Oct 12 19:58:18.654 INFO kablam! 
Oct 12 19:58:18.655 INFO kablam! warning: unused variable: `z`
Oct 12 19:58:18.655 INFO kablam!   --> src/main.rs:74:9
Oct 12 19:58:18.655 INFO kablam!    |
Oct 12 19:58:18.655 INFO kablam! 74 |     let z = tuple.2;
Oct 12 19:58:18.655 INFO kablam!    |         ^ help: consider using `_z` instead
Oct 12 19:58:18.655 INFO kablam! 
Oct 12 19:58:18.655 INFO kablam! warning: unused variable: `j`
Oct 12 19:58:18.655 INFO kablam!   --> src/main.rs:91:9
Oct 12 19:58:18.655 INFO kablam!    |
Oct 12 19:58:18.655 INFO kablam! 91 |     let j: i32 = 0;
Oct 12 19:58:18.655 INFO kablam!    |         ^ help: consider using `_j` instead
Oct 12 19:58:18.655 INFO kablam! 
Oct 12 19:58:18.655 INFO kablam! warning: unused variable: `v2`
Oct 12 19:58:18.655 INFO kablam!    --> src/main.rs:119:9
Oct 12 19:58:18.655 INFO kablam!     |
Oct 12 19:58:18.655 INFO kablam! 119 |     let v2 = v;
Oct 12 19:58:18.655 INFO kablam!     |         ^^ help: consider using `_v2` instead
Oct 12 19:58:18.655 INFO kablam! 
Oct 12 19:58:18.677 INFO kablam! warning: function is never used: `diverges`
Oct 12 19:58:18.677 INFO kablam!    --> src/main.rs:188:1
Oct 12 19:58:18.677 INFO kablam!     |
Oct 12 19:58:18.677 INFO kablam! 188 | fn diverges() -> ! {
Oct 12 19:58:18.677 INFO kablam!     | ^^^^^^^^^^^^^^^^^^
Oct 12 19:58:18.677 INFO kablam!     |
Oct 12 19:58:18.677 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 12 19:58:18.677 INFO kablam! 
Oct 12 19:58:18.758 INFO kablam! warning: variable `inferred_type` is assigned to, but never used
Oct 12 19:58:18.758 INFO kablam!   --> src/main.rs:19:13
Oct 12 19:58:18.758 INFO kablam!    |
Oct 12 19:58:18.758 INFO kablam! 19 |     let mut inferred_type = 12; // Type i64 is inferred from another line
Oct 12 19:58:18.758 INFO kablam!    |             ^^^^^^^^^^^^^
Oct 12 19:58:18.758 INFO kablam!    |
Oct 12 19:58:18.758 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 19:58:18.759 INFO kablam!    = note: consider using `_inferred_type` instead
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: value assigned to `inferred_type` is never read
Oct 12 19:58:18.759 INFO kablam!   --> src/main.rs:20:5
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam! 20 |     inferred_type = 4294967296i64;
Oct 12 19:58:18.759 INFO kablam!    |     ^^^^^^^^^^^^^
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: variable `mutable` is assigned to, but never used
Oct 12 19:58:18.759 INFO kablam!   --> src/main.rs:23:13
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam! 23 |     let mut mutable = 12; // Mutable `i32`
Oct 12 19:58:18.759 INFO kablam!    |             ^^^^^^^
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam!    = note: consider using `_mutable` instead
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: value assigned to `mutable` is never read
Oct 12 19:58:18.759 INFO kablam!   --> src/main.rs:24:5
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam! 24 |     mutable = 21;
Oct 12 19:58:18.759 INFO kablam!    |     ^^^^^^^
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: value assigned to `mutable` is never read
Oct 12 19:58:18.759 INFO kablam!   --> src/main.rs:27:5
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam! 27 |     mutable = 11;
Oct 12 19:58:18.759 INFO kablam!    |     ^^^^^^^
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: unused variable: `mutable`
Oct 12 19:58:18.759 INFO kablam!   --> src/main.rs:30:9
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam! 30 |     let mutable = true;
Oct 12 19:58:18.759 INFO kablam!    |         ^^^^^^^ help: consider using `_mutable` instead
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: unused variable: `a`
Oct 12 19:58:18.759 INFO kablam!   --> src/main.rs:36:9
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam! 36 |     let a = [1, 2, 3]; // a: [i32; 3]
Oct 12 19:58:18.759 INFO kablam!    |         ^ help: consider using `_a` instead
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: unused variable: `middle`
Oct 12 19:58:18.759 INFO kablam!   --> src/main.rs:61:9
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam! 61 |     let middle = &a[1..3];
Oct 12 19:58:18.759 INFO kablam!    |         ^^^^^^ help: consider using `_middle` instead
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: unused variable: `a`
Oct 12 19:58:18.759 INFO kablam!   --> src/main.rs:67:10
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam! 67 |     let (a, b, c) = y;
Oct 12 19:58:18.759 INFO kablam!    |          ^ help: consider using `_a` instead
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: unused variable: `b`
Oct 12 19:58:18.759 INFO kablam!   --> src/main.rs:67:13
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam! 67 |     let (a, b, c) = y;
Oct 12 19:58:18.759 INFO kablam!    |             ^ help: consider using `_b` instead
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: unused variable: `y`
Oct 12 19:58:18.759 INFO kablam!   --> src/main.rs:73:9
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam! 73 |     let y = tuple.1;
Oct 12 19:58:18.759 INFO kablam!    |         ^ help: consider using `_y` instead
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: unused variable: `z`
Oct 12 19:58:18.759 INFO kablam!   --> src/main.rs:74:9
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam! 74 |     let z = tuple.2;
Oct 12 19:58:18.759 INFO kablam!    |         ^ help: consider using `_z` instead
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: unused variable: `j`
Oct 12 19:58:18.759 INFO kablam!   --> src/main.rs:91:9
Oct 12 19:58:18.759 INFO kablam!    |
Oct 12 19:58:18.759 INFO kablam! 91 |     let j: i32 = 0;
Oct 12 19:58:18.759 INFO kablam!    |         ^ help: consider using `_j` instead
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.759 INFO kablam! warning: unused variable: `v2`
Oct 12 19:58:18.759 INFO kablam!    --> src/main.rs:119:9
Oct 12 19:58:18.759 INFO kablam!     |
Oct 12 19:58:18.759 INFO kablam! 119 |     let v2 = v;
Oct 12 19:58:18.759 INFO kablam!     |         ^^ help: consider using `_v2` instead
Oct 12 19:58:18.759 INFO kablam! 
Oct 12 19:58:18.780 INFO kablam! warning: function is never used: `diverges`
Oct 12 19:58:18.780 INFO kablam!    --> src/main.rs:188:1
Oct 12 19:58:18.780 INFO kablam!     |
Oct 12 19:58:18.780 INFO kablam! 188 | fn diverges() -> ! {
Oct 12 19:58:18.780 INFO kablam!     | ^^^^^^^^^^^^^^^^^^
Oct 12 19:58:18.780 INFO kablam!     |
Oct 12 19:58:18.780 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 12 19:58:18.780 INFO kablam! 
Oct 12 19:58:18.795 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
Oct 12 19:58:18.799 INFO kablam! su: No module specific data is present
Oct 12 19:58:19.067 INFO running `"docker" "rm" "-f" "87378837d4f58645acef694e16936578f23d2d0bd80b7050fd816ac6f5f95f68"`
Oct 12 19:58:19.199 INFO blam! 87378837d4f58645acef694e16936578f23d2d0bd80b7050fd816ac6f5f95f68