[INFO] updating cached repository EinarSundgren/rust_gol
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/EinarSundgren/rust_gol
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/EinarSundgren/rust_gol" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/EinarSundgren/rust_gol"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/EinarSundgren/rust_gol'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/EinarSundgren/rust_gol" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/EinarSundgren/rust_gol"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/EinarSundgren/rust_gol'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5af38e7b3cf41c8d66f399af3ebf071503b9c965
[INFO] sha for GitHub repo EinarSundgren/rust_gol: 5af38e7b3cf41c8d66f399af3ebf071503b9c965
[INFO] validating manifest of EinarSundgren/rust_gol on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of EinarSundgren/rust_gol on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing EinarSundgren/rust_gol
[INFO] finished frobbing EinarSundgren/rust_gol
[INFO] frobbed toml for EinarSundgren/rust_gol written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/EinarSundgren/rust_gol/Cargo.toml
[INFO] started frobbing EinarSundgren/rust_gol
[INFO] finished frobbing EinarSundgren/rust_gol
[INFO] frobbed toml for EinarSundgren/rust_gol written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/EinarSundgren/rust_gol/Cargo.toml
[INFO] crate EinarSundgren/rust_gol already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking EinarSundgren/rust_gol against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-6/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/EinarSundgren/rust_gol:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2f60bb4e589d4660ac291905177ea14aadfbb53209d15cb1dd4691aea5105e26
[INFO] running `"docker" "start" "-a" "2f60bb4e589d4660ac291905177ea14aadfbb53209d15cb1dd4691aea5105e26"`
[INFO] [stderr]     Checking gol v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | for i in 1..10 {
[INFO] [stderr]    |     ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/main.rs:188:18
[INFO] [stderr]     |
[INFO] [stderr] 188 |     for (colnum, y) in x.iter().enumerate() {
[INFO] [stderr]     |                  ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `item`
[INFO] [stderr]    --> src/main.rs:199:9
[INFO] [stderr]     |
[INFO] [stderr] 199 | for (i, item) in board.iter().enumerate() {
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_item`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `i` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:208:13
[INFO] [stderr]     |
[INFO] [stderr] 208 |     let mut i = 0;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_i` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]    --> src/main.rs:228:17
[INFO] [stderr]     |
[INFO] [stderr] 228 |         for (y, val) in row.iter().enumerate() {
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_val`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |     let mut board = vec![vec![0u8; w]; h];
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `initiate_board`
[INFO] [stderr]    --> src/main.rs:207:1
[INFO] [stderr]     |
[INFO] [stderr] 207 | fn initiate_board(mut board: Vec<Vec<u8>>, chance_of_life:f64) -> Vec<Vec<u8>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | for i in 1..10 {
[INFO] [stderr]    |     ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/main.rs:188:18
[INFO] [stderr]     |
[INFO] [stderr] 188 |     for (colnum, y) in x.iter().enumerate() {
[INFO] [stderr]     |                  ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `item`
[INFO] [stderr]    --> src/main.rs:199:9
[INFO] [stderr]     |
[INFO] [stderr] 199 | for (i, item) in board.iter().enumerate() {
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_item`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `i` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:208:13
[INFO] [stderr]     |
[INFO] [stderr] 208 |     let mut i = 0;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_i` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]    --> src/main.rs:228:17
[INFO] [stderr]     |
[INFO] [stderr] 228 |         for (y, val) in row.iter().enumerate() {
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:34:6
[INFO] [stderr]    |
[INFO] [stderr] 34 | for (i, x) in board.iter_mut().enumerate() {
[INFO] [stderr]    |      ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/main.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr] 35 |     for (j, y) in x.iter_mut().enumerate() {
[INFO] [stderr]    |          ^ help: consider prefixing with an underscore: `_j`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:42:6
[INFO] [stderr]    |
[INFO] [stderr] 42 | for (i, x) in board.iter().enumerate() {
[INFO] [stderr]    |      ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/main.rs:43:10
[INFO] [stderr]    |
[INFO] [stderr] 43 |     for (j, mut y) in x.iter().enumerate() {
[INFO] [stderr]    |          ^ help: consider prefixing with an underscore: `_j`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |     let mut board = vec![vec![0u8; w]; h];
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `initiate_board`
[INFO] [stderr]    --> src/main.rs:207:1
[INFO] [stderr]     |
[INFO] [stderr] 207 | fn initiate_board(mut board: Vec<Vec<u8>>, chance_of_life:f64) -> Vec<Vec<u8>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "2f60bb4e589d4660ac291905177ea14aadfbb53209d15cb1dd4691aea5105e26"`
[INFO] running `"docker" "rm" "-f" "2f60bb4e589d4660ac291905177ea14aadfbb53209d15cb1dd4691aea5105e26"`
[INFO] [stdout] 2f60bb4e589d4660ac291905177ea14aadfbb53209d15cb1dd4691aea5105e26