Dec 19 19:23:00.511 INFO checking bwhetherington/rust-2048 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 19:23:00.511 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/bwhetherington/rust-2048:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:23:00.924 INFO [stdout] 7ecc1e4aabc9f3db1304fab89d37b517d1dc7536b3293af58669c02fd8d9a385
Dec 19 19:23:00.926 INFO running `"docker" "start" "-a" "7ecc1e4aabc9f3db1304fab89d37b517d1dc7536b3293af58669c02fd8d9a385"`
Dec 19 19:23:02.276 INFO [stderr]     Checking rust-2048-2 v0.1.0 (/opt/crater/workdir)
Dec 19 19:23:02.720 INFO [stderr] warning: unused import: `game::*`
Dec 19 19:23:02.720 INFO [stderr]  --> src/main.rs:8:5
Dec 19 19:23:02.720 INFO [stderr]   |
Dec 19 19:23:02.720 INFO [stderr] 8 | use game::*;
Dec 19 19:23:02.720 INFO [stderr]   |     ^^^^^^^
Dec 19 19:23:02.720 INFO [stderr]   |
Dec 19 19:23:02.720 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 19:23:02.720 INFO [stderr] 
Dec 19 19:23:02.732 INFO [stderr] warning: unused import: `game::*`
Dec 19 19:23:02.732 INFO [stderr]  --> src/main.rs:8:5
Dec 19 19:23:02.732 INFO [stderr]   |
Dec 19 19:23:02.732 INFO [stderr] 8 | use game::*;
Dec 19 19:23:02.734 INFO [stderr]   |     ^^^^^^^
Dec 19 19:23:02.734 INFO [stderr]   |
Dec 19 19:23:02.734 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 19:23:02.734 INFO [stderr] 
Dec 19 19:23:02.885 INFO [stderr] warning: unused variable: `j`
Dec 19 19:23:02.885 INFO [stderr]   --> src/game/mod.rs:74:13
Dec 19 19:23:02.885 INFO [stderr]    |
Dec 19 19:23:02.885 INFO [stderr] 74 |         for j in 0..source.cols() {
Dec 19 19:23:02.885 INFO [stderr]    |             ^ help: consider using `_j` instead
Dec 19 19:23:02.885 INFO [stderr]    |
Dec 19 19:23:02.885 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 19:23:02.885 INFO [stderr] 
Dec 19 19:23:02.885 INFO [stderr] warning: unused variable: `dest`
Dec 19 19:23:02.885 INFO [stderr]   --> src/game/mod.rs:70:37
Dec 19 19:23:02.885 INFO [stderr]    |
Dec 19 19:23:02.885 INFO [stderr] 70 | fn slide_left(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.885 INFO [stderr]    |                                     ^^^^ help: consider using `_dest` instead
Dec 19 19:23:02.885 INFO [stderr] 
Dec 19 19:23:02.885 INFO [stderr] warning: unused variable: `source`
Dec 19 19:23:02.885 INFO [stderr]   --> src/game/mod.rs:82:16
Dec 19 19:23:02.885 INFO [stderr]    |
Dec 19 19:23:02.885 INFO [stderr] 82 | fn slide_right(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.885 INFO [stderr]    |                ^^^^^^ help: consider using `_source` instead
Dec 19 19:23:02.885 INFO [stderr] 
Dec 19 19:23:02.885 INFO [stderr] warning: unused variable: `dest`
Dec 19 19:23:02.885 INFO [stderr]   --> src/game/mod.rs:82:38
Dec 19 19:23:02.885 INFO [stderr]    |
Dec 19 19:23:02.885 INFO [stderr] 82 | fn slide_right(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.885 INFO [stderr]    |                                      ^^^^ help: consider using `_dest` instead
Dec 19 19:23:02.885 INFO [stderr] 
Dec 19 19:23:02.885 INFO [stderr] warning: unused variable: `source`
Dec 19 19:23:02.885 INFO [stderr]   --> src/game/mod.rs:88:13
Dec 19 19:23:02.885 INFO [stderr]    |
Dec 19 19:23:02.885 INFO [stderr] 88 | fn slide_up(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.885 INFO [stderr]    |             ^^^^^^ help: consider using `_source` instead
Dec 19 19:23:02.885 INFO [stderr] 
Dec 19 19:23:02.885 INFO [stderr] warning: unused variable: `dest`
Dec 19 19:23:02.885 INFO [stderr]   --> src/game/mod.rs:88:35
Dec 19 19:23:02.885 INFO [stderr]    |
Dec 19 19:23:02.885 INFO [stderr] 88 | fn slide_up(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.885 INFO [stderr]    |                                   ^^^^ help: consider using `_dest` instead
Dec 19 19:23:02.885 INFO [stderr] 
Dec 19 19:23:02.885 INFO [stderr] warning: unused variable: `source`
Dec 19 19:23:02.885 INFO [stderr]   --> src/game/mod.rs:94:15
Dec 19 19:23:02.885 INFO [stderr]    |
Dec 19 19:23:02.885 INFO [stderr] 94 | fn slide_down(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.885 INFO [stderr]    |               ^^^^^^ help: consider using `_source` instead
Dec 19 19:23:02.885 INFO [stderr] 
Dec 19 19:23:02.885 INFO [stderr] warning: unused variable: `dest`
Dec 19 19:23:02.885 INFO [stderr]   --> src/game/mod.rs:94:37
Dec 19 19:23:02.885 INFO [stderr]    |
Dec 19 19:23:02.885 INFO [stderr] 94 | fn slide_down(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.885 INFO [stderr]    |                                     ^^^^ help: consider using `_dest` instead
Dec 19 19:23:02.885 INFO [stderr] 
Dec 19 19:23:02.885 INFO [stderr] warning: unused variable: `d`
Dec 19 19:23:02.885 INFO [stderr]   --> src/main.rs:15:9
Dec 19 19:23:02.885 INFO [stderr]    |
Dec 19 19:23:02.885 INFO [stderr] 15 |     let d: Matrix<_> = m.diag().into();
Dec 19 19:23:02.885 INFO [stderr]    |         ^ help: consider using `_d` instead
Dec 19 19:23:02.885 INFO [stderr] 
Dec 19 19:23:02.944 INFO [stderr] warning: unused variable: `j`
Dec 19 19:23:02.944 INFO [stderr]   --> src/game/mod.rs:74:13
Dec 19 19:23:02.945 INFO [stderr]    |
Dec 19 19:23:02.945 INFO [stderr] 74 |         for j in 0..source.cols() {
Dec 19 19:23:02.945 INFO [stderr]    |             ^ help: consider using `_j` instead
Dec 19 19:23:02.945 INFO [stderr]    |
Dec 19 19:23:02.945 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 19:23:02.945 INFO [stderr] 
Dec 19 19:23:02.945 INFO [stderr] warning: unused variable: `dest`
Dec 19 19:23:02.945 INFO [stderr]   --> src/game/mod.rs:70:37
Dec 19 19:23:02.945 INFO [stderr]    |
Dec 19 19:23:02.945 INFO [stderr] 70 | fn slide_left(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.945 INFO [stderr]    |                                     ^^^^ help: consider using `_dest` instead
Dec 19 19:23:02.945 INFO [stderr] 
Dec 19 19:23:02.945 INFO [stderr] warning: unused variable: `source`
Dec 19 19:23:02.948 INFO [stderr]   --> src/game/mod.rs:82:16
Dec 19 19:23:02.948 INFO [stderr]    |
Dec 19 19:23:02.948 INFO [stderr] 82 | fn slide_right(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.948 INFO [stderr]    |                ^^^^^^ help: consider using `_source` instead
Dec 19 19:23:02.948 INFO [stderr] 
Dec 19 19:23:02.948 INFO [stderr] warning: unused variable: `dest`
Dec 19 19:23:02.948 INFO [stderr]   --> src/game/mod.rs:82:38
Dec 19 19:23:02.948 INFO [stderr]    |
Dec 19 19:23:02.948 INFO [stderr] 82 | fn slide_right(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.948 INFO [stderr]    |                                      ^^^^ help: consider using `_dest` instead
Dec 19 19:23:02.948 INFO [stderr] 
Dec 19 19:23:02.948 INFO [stderr] warning: unused variable: `source`
Dec 19 19:23:02.948 INFO [stderr]   --> src/game/mod.rs:88:13
Dec 19 19:23:02.948 INFO [stderr]    |
Dec 19 19:23:02.948 INFO [stderr] 88 | fn slide_up(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.948 INFO [stderr]    |             ^^^^^^ help: consider using `_source` instead
Dec 19 19:23:02.948 INFO [stderr] 
Dec 19 19:23:02.948 INFO [stderr] warning: unused variable: `dest`
Dec 19 19:23:02.948 INFO [stderr]   --> src/game/mod.rs:88:35
Dec 19 19:23:02.948 INFO [stderr]    |
Dec 19 19:23:02.948 INFO [stderr] 88 | fn slide_up(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.948 INFO [stderr]    |                                   ^^^^ help: consider using `_dest` instead
Dec 19 19:23:02.948 INFO [stderr] 
Dec 19 19:23:02.948 INFO [stderr] warning: unused variable: `source`
Dec 19 19:23:02.948 INFO [stderr]   --> src/game/mod.rs:94:15
Dec 19 19:23:02.948 INFO [stderr]    |
Dec 19 19:23:02.948 INFO [stderr] 94 | fn slide_down(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.948 INFO [stderr]    |               ^^^^^^ help: consider using `_source` instead
Dec 19 19:23:02.948 INFO [stderr] 
Dec 19 19:23:02.948 INFO [stderr] warning: unused variable: `dest`
Dec 19 19:23:02.948 INFO [stderr]   --> src/game/mod.rs:94:37
Dec 19 19:23:02.948 INFO [stderr]    |
Dec 19 19:23:02.948 INFO [stderr] 94 | fn slide_down(source: &Matrix<u32>, dest: &mut Matrix<u32>) {
Dec 19 19:23:02.948 INFO [stderr]    |                                     ^^^^ help: consider using `_dest` instead
Dec 19 19:23:02.948 INFO [stderr] 
Dec 19 19:23:02.948 INFO [stderr] warning: unused variable: `d`
Dec 19 19:23:02.948 INFO [stderr]   --> src/main.rs:15:9
Dec 19 19:23:02.948 INFO [stderr]    |
Dec 19 19:23:02.948 INFO [stderr] 15 |     let d: Matrix<_> = m.diag().into();
Dec 19 19:23:02.948 INFO [stderr]    |         ^ help: consider using `_d` instead
Dec 19 19:23:02.948 INFO [stderr] 
Dec 19 19:23:03.047 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 19 19:23:03.744 INFO running `"docker" "inspect" "7ecc1e4aabc9f3db1304fab89d37b517d1dc7536b3293af58669c02fd8d9a385"`
Dec 19 19:23:04.030 INFO running `"docker" "rm" "-f" "7ecc1e4aabc9f3db1304fab89d37b517d1dc7536b3293af58669c02fd8d9a385"`
Dec 19 19:23:04.272 INFO [stdout] 7ecc1e4aabc9f3db1304fab89d37b517d1dc7536b3293af58669c02fd8d9a385