Dec 17 13:26:49.785 INFO checking tnactim/variables against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 13:26:49.785 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/tnactim/variables:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 13:26:50.182 INFO [stdout] d70e5b76a0edf9a38d58e2040c7bec80b19da9a59b26df76693ed6ad0331bfaf
Dec 17 13:26:50.184 INFO running `"docker" "start" "-a" "d70e5b76a0edf9a38d58e2040c7bec80b19da9a59b26df76693ed6ad0331bfaf"`
Dec 17 13:26:52.425 INFO [stderr]     Checking variables v0.1.0 (/opt/crater/workdir)
Dec 17 13:26:52.684 INFO [stderr] warning: unused variable: `x`
Dec 17 13:26:52.684 INFO [stderr]  --> src/main.rs:9:9
Dec 17 13:26:52.684 INFO [stderr]   |
Dec 17 13:26:52.684 INFO [stderr] 9 |     let x = 2.0; // f64
Dec 17 13:26:52.684 INFO [stderr]   |         ^ help: consider using `_x` instead
Dec 17 13:26:52.684 INFO [stderr]   |
Dec 17 13:26:52.684 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 17 13:26:52.684 INFO [stderr] 
Dec 17 13:26:52.684 INFO [stderr] warning: unused variable: `y`
Dec 17 13:26:52.684 INFO [stderr]   --> src/main.rs:10:9
Dec 17 13:26:52.684 INFO [stderr]    |
Dec 17 13:26:52.684 INFO [stderr] 10 |     let y: f32 = 3.0; // f32
Dec 17 13:26:52.684 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 17 13:26:52.684 INFO [stderr] 
Dec 17 13:26:52.684 INFO [stderr] warning: unused variable: `sum`
Dec 17 13:26:52.684 INFO [stderr]   --> src/main.rs:13:9
Dec 17 13:26:52.684 INFO [stderr]    |
Dec 17 13:26:52.684 INFO [stderr] 13 |     let sum = 5 + 10;
Dec 17 13:26:52.684 INFO [stderr]    |         ^^^ help: consider using `_sum` instead
Dec 17 13:26:52.684 INFO [stderr] 
Dec 17 13:26:52.684 INFO [stderr] warning: unused variable: `difference`
Dec 17 13:26:52.684 INFO [stderr]   --> src/main.rs:15:9
Dec 17 13:26:52.684 INFO [stderr]    |
Dec 17 13:26:52.684 INFO [stderr] 15 |     let difference = 95.5 - 4.3;
Dec 17 13:26:52.684 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_difference` instead
Dec 17 13:26:52.684 INFO [stderr] 
Dec 17 13:26:52.684 INFO [stderr] warning: unused variable: `product`
Dec 17 13:26:52.684 INFO [stderr]   --> src/main.rs:17:9
Dec 17 13:26:52.684 INFO [stderr]    |
Dec 17 13:26:52.684 INFO [stderr] 17 |     let product = 4 * 30;
Dec 17 13:26:52.684 INFO [stderr]    |         ^^^^^^^ help: consider using `_product` instead
Dec 17 13:26:52.684 INFO [stderr] 
Dec 17 13:26:52.684 INFO [stderr] warning: unused variable: `quotient`
Dec 17 13:26:52.684 INFO [stderr]   --> src/main.rs:19:9
Dec 17 13:26:52.684 INFO [stderr]    |
Dec 17 13:26:52.684 INFO [stderr] 19 |     let quotient = 56.7 / 32.2;
Dec 17 13:26:52.684 INFO [stderr]    |         ^^^^^^^^ help: consider using `_quotient` instead
Dec 17 13:26:52.684 INFO [stderr] 
Dec 17 13:26:52.684 INFO [stderr] warning: unused variable: `remainder`
Dec 17 13:26:52.684 INFO [stderr]   --> src/main.rs:21:9
Dec 17 13:26:52.684 INFO [stderr]    |
Dec 17 13:26:52.684 INFO [stderr] 21 |     let remainder = 43 % 5;
Dec 17 13:26:52.684 INFO [stderr]    |         ^^^^^^^^^ help: consider using `_remainder` instead
Dec 17 13:26:52.684 INFO [stderr] 
Dec 17 13:26:52.684 INFO [stderr] warning: unused variable: `t`
Dec 17 13:26:52.684 INFO [stderr]   --> src/main.rs:23:9
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 23 |     let t = true;
Dec 17 13:26:52.685 INFO [stderr]    |         ^ help: consider using `_t` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.685 INFO [stderr] warning: unused variable: `f`
Dec 17 13:26:52.685 INFO [stderr]   --> src/main.rs:24:9
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 24 |     let f: bool = false; // explicit type annotation
Dec 17 13:26:52.685 INFO [stderr]    |         ^ help: consider using `_f` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.685 INFO [stderr] warning: unused variable: `c`
Dec 17 13:26:52.685 INFO [stderr]   --> src/main.rs:27:9
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 27 |     let c = 'z';
Dec 17 13:26:52.685 INFO [stderr]    |         ^ help: consider using `_c` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.685 INFO [stderr] warning: unused variable: `z`
Dec 17 13:26:52.685 INFO [stderr]   --> src/main.rs:28:9
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 28 |     let z = 'Z';
Dec 17 13:26:52.685 INFO [stderr]    |         ^ help: consider using `_z` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.685 INFO [stderr] warning: unused variable: `ok_hand`
Dec 17 13:26:52.685 INFO [stderr]   --> src/main.rs:29:9
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 29 |     let ok_hand = '👌';
Dec 17 13:26:52.685 INFO [stderr]    |         ^^^^^^^ help: consider using `_ok_hand` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.685 INFO [stderr] warning: unused variable: `x`
Dec 17 13:26:52.685 INFO [stderr]   --> src/main.rs:36:10
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 36 |     let (x, y, z) = tup;
Dec 17 13:26:52.685 INFO [stderr]    |          ^ help: consider using `_x` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.685 INFO [stderr] warning: unused variable: `z`
Dec 17 13:26:52.685 INFO [stderr]   --> src/main.rs:36:16
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 36 |     let (x, y, z) = tup;
Dec 17 13:26:52.685 INFO [stderr]    |                ^ help: consider using `_z` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.685 INFO [stderr] warning: unused variable: `five_hundred`
Dec 17 13:26:52.685 INFO [stderr]   --> src/main.rs:40:9
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 40 |     let five_hundred = tup.0;
Dec 17 13:26:52.685 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_five_hundred` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.685 INFO [stderr] warning: unused variable: `six_point_four`
Dec 17 13:26:52.685 INFO [stderr]   --> src/main.rs:41:9
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 41 |     let six_point_four = tup.1;
Dec 17 13:26:52.685 INFO [stderr]    |         ^^^^^^^^^^^^^^ help: consider using `_six_point_four` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.685 INFO [stderr] warning: unused variable: `one`
Dec 17 13:26:52.685 INFO [stderr]   --> src/main.rs:42:9
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 42 |     let one = tup.2;
Dec 17 13:26:52.685 INFO [stderr]    |         ^^^ help: consider using `_one` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.685 INFO [stderr] warning: unused variable: `months`
Dec 17 13:26:52.685 INFO [stderr]   --> src/main.rs:48:9
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 48 |     let months = ["January", "February", "March", "April", "May", "June", "July",
Dec 17 13:26:52.685 INFO [stderr]    |         ^^^^^^ help: consider using `_months` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.685 INFO [stderr] warning: unused variable: `first`
Dec 17 13:26:52.685 INFO [stderr]   --> src/main.rs:52:9
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 52 |     let first = a[0];
Dec 17 13:26:52.685 INFO [stderr]    |         ^^^^^ help: consider using `_first` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.685 INFO [stderr] warning: unused variable: `second`
Dec 17 13:26:52.685 INFO [stderr]   --> src/main.rs:53:9
Dec 17 13:26:52.685 INFO [stderr]    |
Dec 17 13:26:52.685 INFO [stderr] 53 |     let second = a[1];
Dec 17 13:26:52.685 INFO [stderr]    |         ^^^^^^ help: consider using `_second` instead
Dec 17 13:26:52.685 INFO [stderr] 
Dec 17 13:26:52.763 INFO [stderr] warning: unused variable: `x`
Dec 17 13:26:52.763 INFO [stderr]  --> src/main.rs:9:9
Dec 17 13:26:52.763 INFO [stderr]   |
Dec 17 13:26:52.763 INFO [stderr] 9 |     let x = 2.0; // f64
Dec 17 13:26:52.763 INFO [stderr]   |         ^ help: consider using `_x` instead
Dec 17 13:26:52.763 INFO [stderr]   |
Dec 17 13:26:52.763 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 17 13:26:52.763 INFO [stderr] 
Dec 17 13:26:52.763 INFO [stderr] warning: unused variable: `y`
Dec 17 13:26:52.763 INFO [stderr]   --> src/main.rs:10:9
Dec 17 13:26:52.763 INFO [stderr]    |
Dec 17 13:26:52.763 INFO [stderr] 10 |     let y: f32 = 3.0; // f32
Dec 17 13:26:52.763 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 17 13:26:52.763 INFO [stderr] 
Dec 17 13:26:52.763 INFO [stderr] warning: unused variable: `sum`
Dec 17 13:26:52.763 INFO [stderr]   --> src/main.rs:13:9
Dec 17 13:26:52.763 INFO [stderr]    |
Dec 17 13:26:52.763 INFO [stderr] 13 |     let sum = 5 + 10;
Dec 17 13:26:52.763 INFO [stderr]    |         ^^^ help: consider using `_sum` instead
Dec 17 13:26:52.763 INFO [stderr] 
Dec 17 13:26:52.763 INFO [stderr] warning: unused variable: `difference`
Dec 17 13:26:52.763 INFO [stderr]   --> src/main.rs:15:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 15 |     let difference = 95.5 - 4.3;
Dec 17 13:26:52.764 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_difference` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `product`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:17:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 17 |     let product = 4 * 30;
Dec 17 13:26:52.764 INFO [stderr]    |         ^^^^^^^ help: consider using `_product` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `quotient`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:19:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 19 |     let quotient = 56.7 / 32.2;
Dec 17 13:26:52.764 INFO [stderr]    |         ^^^^^^^^ help: consider using `_quotient` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `remainder`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:21:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 21 |     let remainder = 43 % 5;
Dec 17 13:26:52.764 INFO [stderr]    |         ^^^^^^^^^ help: consider using `_remainder` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `t`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:23:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 23 |     let t = true;
Dec 17 13:26:52.764 INFO [stderr]    |         ^ help: consider using `_t` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `f`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:24:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 24 |     let f: bool = false; // explicit type annotation
Dec 17 13:26:52.764 INFO [stderr]    |         ^ help: consider using `_f` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `c`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:27:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 27 |     let c = 'z';
Dec 17 13:26:52.764 INFO [stderr]    |         ^ help: consider using `_c` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `z`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:28:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 28 |     let z = 'Z';
Dec 17 13:26:52.764 INFO [stderr]    |         ^ help: consider using `_z` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `ok_hand`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:29:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 29 |     let ok_hand = '👌';
Dec 17 13:26:52.764 INFO [stderr]    |         ^^^^^^^ help: consider using `_ok_hand` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `x`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:36:10
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 36 |     let (x, y, z) = tup;
Dec 17 13:26:52.764 INFO [stderr]    |          ^ help: consider using `_x` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `z`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:36:16
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 36 |     let (x, y, z) = tup;
Dec 17 13:26:52.764 INFO [stderr]    |                ^ help: consider using `_z` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `five_hundred`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:40:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 40 |     let five_hundred = tup.0;
Dec 17 13:26:52.764 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_five_hundred` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `six_point_four`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:41:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 41 |     let six_point_four = tup.1;
Dec 17 13:26:52.764 INFO [stderr]    |         ^^^^^^^^^^^^^^ help: consider using `_six_point_four` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `one`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:42:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 42 |     let one = tup.2;
Dec 17 13:26:52.764 INFO [stderr]    |         ^^^ help: consider using `_one` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `months`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:48:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 48 |     let months = ["January", "February", "March", "April", "May", "June", "July",
Dec 17 13:26:52.764 INFO [stderr]    |         ^^^^^^ help: consider using `_months` instead
Dec 17 13:26:52.764 INFO [stderr] 
Dec 17 13:26:52.764 INFO [stderr] warning: unused variable: `first`
Dec 17 13:26:52.764 INFO [stderr]   --> src/main.rs:52:9
Dec 17 13:26:52.764 INFO [stderr]    |
Dec 17 13:26:52.764 INFO [stderr] 52 |     let first = a[0];
Dec 17 13:26:52.764 INFO [stderr]    |         ^^^^^ help: consider using `_first` instead
Dec 17 13:26:52.765 INFO [stderr] 
Dec 17 13:26:52.765 INFO [stderr] warning: unused variable: `second`
Dec 17 13:26:52.765 INFO [stderr]   --> src/main.rs:53:9
Dec 17 13:26:52.765 INFO [stderr]    |
Dec 17 13:26:52.765 INFO [stderr] 53 |     let second = a[1];
Dec 17 13:26:52.765 INFO [stderr]    |         ^^^^^^ help: consider using `_second` instead
Dec 17 13:26:52.765 INFO [stderr] 
Dec 17 13:26:52.816 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
Dec 17 13:26:53.578 INFO running `"docker" "inspect" "d70e5b76a0edf9a38d58e2040c7bec80b19da9a59b26df76693ed6ad0331bfaf"`
Dec 17 13:26:53.968 INFO running `"docker" "rm" "-f" "d70e5b76a0edf9a38d58e2040c7bec80b19da9a59b26df76693ed6ad0331bfaf"`
Dec 17 13:26:54.292 INFO [stdout] d70e5b76a0edf9a38d58e2040c7bec80b19da9a59b26df76693ed6ad0331bfaf