Dec 11 21:15:23.905 INFO checking bwhetherington/rust-2048 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 21:15:23.905 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 21:15:24.424 INFO [stdout] c358a0c9c1de6a2910c2dba817adff04f017b13fe530357f7b63a0423f52972a
Dec 11 21:15:24.432 INFO running `"docker" "start" "-a" "c358a0c9c1de6a2910c2dba817adff04f017b13fe530357f7b63a0423f52972a"`
Dec 11 21:15:25.646 INFO [stderr] usermod: no changes
Dec 11 21:15:25.708 INFO [stderr]     Checking rust-2048-2 v0.1.0 (/source)
Dec 11 21:15:26.200 INFO [stderr] warning: unused import: `game::*`
Dec 11 21:15:26.200 INFO [stderr]  --> src/main.rs:8:5
Dec 11 21:15:26.200 INFO [stderr]   |
Dec 11 21:15:26.200 INFO [stderr] 8 | use game::*;
Dec 11 21:15:26.200 INFO [stderr]   |     ^^^^^^^
Dec 11 21:15:26.200 INFO [stderr]   |
Dec 11 21:15:26.200 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 21:15:26.200 INFO [stderr] 
Dec 11 21:15:26.312 INFO [stderr] warning: unused variable: `j`
Dec 11 21:15:26.312 INFO [stderr]   --> src/game/mod.rs:74:13
Dec 11 21:15:26.313 INFO [stderr]    |
Dec 11 21:15:26.313 INFO [stderr] 74 |         for j in 0..source.cols() {
Dec 11 21:15:26.313 INFO [stderr]    |             ^ help: consider using `_j` instead
Dec 11 21:15:26.313 INFO [stderr]    |
Dec 11 21:15:26.313 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 21:15:26.313 INFO [stderr] 
Dec 11 21:15:26.313 INFO [stderr] warning: unused variable: `dest`
Dec 11 21:15:26.313 INFO [stderr]   --> src/game/mod.rs:70:37
Dec 11 21:15:26.313 INFO [stderr]    |
Dec 11 21:15:26.313 INFO [stderr] 70 | fn slide_left(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.313 INFO [stderr]    |                                     ^^^^ help: consider using `_dest` instead
Dec 11 21:15:26.313 INFO [stderr] 
Dec 11 21:15:26.313 INFO [stderr] warning: unused variable: `source`
Dec 11 21:15:26.313 INFO [stderr]   --> src/game/mod.rs:82:16
Dec 11 21:15:26.313 INFO [stderr]    |
Dec 11 21:15:26.313 INFO [stderr] 82 | fn slide_right(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.313 INFO [stderr]    |                ^^^^^^ help: consider using `_source` instead
Dec 11 21:15:26.313 INFO [stderr] 
Dec 11 21:15:26.313 INFO [stderr] warning: unused variable: `dest`
Dec 11 21:15:26.313 INFO [stderr]   --> src/game/mod.rs:82:38
Dec 11 21:15:26.313 INFO [stderr]    |
Dec 11 21:15:26.313 INFO [stderr] 82 | fn slide_right(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.313 INFO [stderr]    |                                      ^^^^ help: consider using `_dest` instead
Dec 11 21:15:26.313 INFO [stderr] 
Dec 11 21:15:26.313 INFO [stderr] warning: unused variable: `source`
Dec 11 21:15:26.313 INFO [stderr]   --> src/game/mod.rs:88:13
Dec 11 21:15:26.313 INFO [stderr]    |
Dec 11 21:15:26.313 INFO [stderr] 88 | fn slide_up(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.313 INFO [stderr]    |             ^^^^^^ help: consider using `_source` instead
Dec 11 21:15:26.313 INFO [stderr] 
Dec 11 21:15:26.313 INFO [stderr] warning: unused variable: `dest`
Dec 11 21:15:26.313 INFO [stderr]   --> src/game/mod.rs:88:35
Dec 11 21:15:26.313 INFO [stderr]    |
Dec 11 21:15:26.313 INFO [stderr] 88 | fn slide_up(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.313 INFO [stderr]    |                                   ^^^^ help: consider using `_dest` instead
Dec 11 21:15:26.313 INFO [stderr] 
Dec 11 21:15:26.313 INFO [stderr] warning: unused variable: `source`
Dec 11 21:15:26.313 INFO [stderr]   --> src/game/mod.rs:94:15
Dec 11 21:15:26.313 INFO [stderr]    |
Dec 11 21:15:26.313 INFO [stderr] 94 | fn slide_down(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.313 INFO [stderr]    |               ^^^^^^ help: consider using `_source` instead
Dec 11 21:15:26.313 INFO [stderr] 
Dec 11 21:15:26.313 INFO [stderr] warning: unused variable: `dest`
Dec 11 21:15:26.313 INFO [stderr]   --> src/game/mod.rs:94:37
Dec 11 21:15:26.313 INFO [stderr]    |
Dec 11 21:15:26.313 INFO [stderr] 94 | fn slide_down(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.313 INFO [stderr]    |                                     ^^^^ help: consider using `_dest` instead
Dec 11 21:15:26.313 INFO [stderr] 
Dec 11 21:15:26.313 INFO [stderr] warning: unused variable: `d`
Dec 11 21:15:26.313 INFO [stderr]   --> src/main.rs:15:9
Dec 11 21:15:26.313 INFO [stderr]    |
Dec 11 21:15:26.313 INFO [stderr] 15 |     let d: Matrix<_> = m.diag().into();
Dec 11 21:15:26.313 INFO [stderr]    |         ^ help: consider using `_d` instead
Dec 11 21:15:26.313 INFO [stderr] 
Dec 11 21:15:26.372 INFO [stderr] warning: unused import: `game::*`
Dec 11 21:15:26.372 INFO [stderr]  --> src/main.rs:8:5
Dec 11 21:15:26.372 INFO [stderr]   |
Dec 11 21:15:26.372 INFO [stderr] 8 | use game::*;
Dec 11 21:15:26.372 INFO [stderr]   |     ^^^^^^^
Dec 11 21:15:26.372 INFO [stderr]   |
Dec 11 21:15:26.372 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 21:15:26.372 INFO [stderr] 
Dec 11 21:15:26.544 INFO [stderr] warning: unused variable: `j`
Dec 11 21:15:26.544 INFO [stderr]   --> src/game/mod.rs:74:13
Dec 11 21:15:26.544 INFO [stderr]    |
Dec 11 21:15:26.544 INFO [stderr] 74 |         for j in 0..source.cols() {
Dec 11 21:15:26.544 INFO [stderr]    |             ^ help: consider using `_j` instead
Dec 11 21:15:26.544 INFO [stderr]    |
Dec 11 21:15:26.544 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 21:15:26.544 INFO [stderr] 
Dec 11 21:15:26.544 INFO [stderr] warning: unused variable: `dest`
Dec 11 21:15:26.544 INFO [stderr]   --> src/game/mod.rs:70:37
Dec 11 21:15:26.544 INFO [stderr]    |
Dec 11 21:15:26.544 INFO [stderr] 70 | fn slide_left(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.544 INFO [stderr]    |                                     ^^^^ help: consider using `_dest` instead
Dec 11 21:15:26.544 INFO [stderr] 
Dec 11 21:15:26.544 INFO [stderr] warning: unused variable: `source`
Dec 11 21:15:26.544 INFO [stderr]   --> src/game/mod.rs:82:16
Dec 11 21:15:26.544 INFO [stderr]    |
Dec 11 21:15:26.544 INFO [stderr] 82 | fn slide_right(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.544 INFO [stderr]    |                ^^^^^^ help: consider using `_source` instead
Dec 11 21:15:26.544 INFO [stderr] 
Dec 11 21:15:26.544 INFO [stderr] warning: unused variable: `dest`
Dec 11 21:15:26.544 INFO [stderr]   --> src/game/mod.rs:82:38
Dec 11 21:15:26.544 INFO [stderr]    |
Dec 11 21:15:26.544 INFO [stderr] 82 | fn slide_right(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.544 INFO [stderr]    |                                      ^^^^ help: consider using `_dest` instead
Dec 11 21:15:26.544 INFO [stderr] 
Dec 11 21:15:26.544 INFO [stderr] warning: unused variable: `source`
Dec 11 21:15:26.544 INFO [stderr]   --> src/game/mod.rs:88:13
Dec 11 21:15:26.544 INFO [stderr]    |
Dec 11 21:15:26.544 INFO [stderr] 88 | fn slide_up(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.544 INFO [stderr]    |             ^^^^^^ help: consider using `_source` instead
Dec 11 21:15:26.544 INFO [stderr] 
Dec 11 21:15:26.544 INFO [stderr] warning: unused variable: `dest`
Dec 11 21:15:26.544 INFO [stderr]   --> src/game/mod.rs:88:35
Dec 11 21:15:26.544 INFO [stderr]    |
Dec 11 21:15:26.544 INFO [stderr] 88 | fn slide_up(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.544 INFO [stderr]    |                                   ^^^^ help: consider using `_dest` instead
Dec 11 21:15:26.544 INFO [stderr] 
Dec 11 21:15:26.544 INFO [stderr] warning: unused variable: `source`
Dec 11 21:15:26.544 INFO [stderr]   --> src/game/mod.rs:94:15
Dec 11 21:15:26.544 INFO [stderr]    |
Dec 11 21:15:26.544 INFO [stderr] 94 | fn slide_down(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.545 INFO [stderr]    |               ^^^^^^ help: consider using `_source` instead
Dec 11 21:15:26.545 INFO [stderr] 
Dec 11 21:15:26.545 INFO [stderr] warning: unused variable: `dest`
Dec 11 21:15:26.545 INFO [stderr]   --> src/game/mod.rs:94:37
Dec 11 21:15:26.545 INFO [stderr]    |
Dec 11 21:15:26.545 INFO [stderr] 94 | fn slide_down(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 11 21:15:26.545 INFO [stderr]    |                                     ^^^^ help: consider using `_dest` instead
Dec 11 21:15:26.545 INFO [stderr] 
Dec 11 21:15:26.545 INFO [stderr] warning: unused variable: `d`
Dec 11 21:15:26.545 INFO [stderr]   --> src/main.rs:15:9
Dec 11 21:15:26.545 INFO [stderr]    |
Dec 11 21:15:26.545 INFO [stderr] 15 |     let d: Matrix<_> = m.diag().into();
Dec 11 21:15:26.545 INFO [stderr]    |         ^ help: consider using `_d` instead
Dec 11 21:15:26.545 INFO [stderr] 
Dec 11 21:15:26.584 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
Dec 11 21:15:26.590 INFO [stderr] su: No module specific data is present
Dec 11 21:15:27.102 INFO running `"docker" "inspect" "c358a0c9c1de6a2910c2dba817adff04f017b13fe530357f7b63a0423f52972a"`
Dec 11 21:15:27.312 INFO running `"docker" "rm" "-f" "c358a0c9c1de6a2910c2dba817adff04f017b13fe530357f7b63a0423f52972a"`
Dec 11 21:15:27.652 INFO [stdout] c358a0c9c1de6a2910c2dba817adff04f017b13fe530357f7b63a0423f52972a