[INFO] updating cached repository creators/cli.nonograms.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/creators/cli.nonograms.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/creators/cli.nonograms.rs" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/creators/cli.nonograms.rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/creators/cli.nonograms.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/creators/cli.nonograms.rs" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/creators/cli.nonograms.rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/creators/cli.nonograms.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3430bd2b2990dfbabba0df75d598e3c93d030077
[INFO] sha for GitHub repo creators/cli.nonograms.rs: 3430bd2b2990dfbabba0df75d598e3c93d030077
[INFO] validating manifest of creators/cli.nonograms.rs on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of creators/cli.nonograms.rs on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing creators/cli.nonograms.rs
[INFO] finished frobbing creators/cli.nonograms.rs
[INFO] frobbed toml for creators/cli.nonograms.rs written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/creators/cli.nonograms.rs/Cargo.toml
[INFO] started frobbing creators/cli.nonograms.rs
[INFO] finished frobbing creators/cli.nonograms.rs
[INFO] frobbed toml for creators/cli.nonograms.rs written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/creators/cli.nonograms.rs/Cargo.toml
[INFO] crate creators/cli.nonograms.rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking creators/cli.nonograms.rs against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-2/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/creators/cli.nonograms.rs:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 16c55e3224db335ab375427da6feb5d40535b8a8454f7ef19bba4d558fd7d4ac
[INFO] running `"docker" "start" "-a" "16c55e3224db335ab375427da6feb5d40535b8a8454f7ef19bba4d558fd7d4ac"`
[INFO] [stderr]    Compiling nonograms v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:181:13
[INFO] [stderr]     |
[INFO] [stderr] 181 |         for i in 0..y {
[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: `len`
[INFO] [stderr]    --> src/main.rs:194:43
[INFO] [stderr]     |
[INFO] [stderr] 194 |     fn draw_x_axis(&self, x:Vec<Vec<u8>>, len:usize, offset:usize) {
[INFO] [stderr]     |                                           ^^^ help: consider prefixing with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l`
[INFO] [stderr]    --> src/main.rs:224:17
[INFO] [stderr]     |
[INFO] [stderr] 224 |             for l in 0..y.len() {
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_l`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/main.rs:211:54
[INFO] [stderr]     |
[INFO] [stderr] 211 |     fn draw_y_axis(&self, y:Vec<Vec<u8>>, len:usize, offset:usize) {
[INFO] [stderr]     |                                                      ^^^^^^ help: consider prefixing with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:181:13
[INFO] [stderr]     |
[INFO] [stderr] 181 |         for i in 0..y {
[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: `len`
[INFO] [stderr]    --> src/main.rs:194:43
[INFO] [stderr]     |
[INFO] [stderr] 194 |     fn draw_x_axis(&self, x:Vec<Vec<u8>>, len:usize, offset:usize) {
[INFO] [stderr]     |                                           ^^^ help: consider prefixing with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l`
[INFO] [stderr]    --> src/main.rs:224:17
[INFO] [stderr]     |
[INFO] [stderr] 224 |             for l in 0..y.len() {
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_l`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]    --> src/main.rs:211:54
[INFO] [stderr]     |
[INFO] [stderr] 211 |     fn draw_y_axis(&self, y:Vec<Vec<u8>>, len:usize, offset:usize) {
[INFO] [stderr]     |                                                      ^^^^^^ help: consider prefixing with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:175:15
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn rotate(mut board: Vec<Vec<u8>>) -> Vec<Vec<u8>> {
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:246:21
[INFO] [stderr]     |
[INFO] [stderr] 246 |         let (mut i, mut j) = self.point.clone();
[INFO] [stderr]     |                     ----^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:175:15
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn rotate(mut board: Vec<Vec<u8>>) -> Vec<Vec<u8>> {
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:305:29
[INFO] [stderr]     |
[INFO] [stderr] 305 |                     let (x, mut y) = (point.0 - self.point.0, (point.1 - self.point.1) / 2);
[INFO] [stderr]     |                             ----^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:246:21
[INFO] [stderr]     |
[INFO] [stderr] 246 |         let (mut i, mut j) = self.point.clone();
[INFO] [stderr]     |                     ----^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:305:29
[INFO] [stderr]     |
[INFO] [stderr] 305 |                     let (x, mut y) = (point.0 - self.point.0, (point.1 - self.point.1) / 2);
[INFO] [stderr]     |                             ----^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `"docker" "inspect" "16c55e3224db335ab375427da6feb5d40535b8a8454f7ef19bba4d558fd7d4ac"`
[INFO] running `"docker" "rm" "-f" "16c55e3224db335ab375427da6feb5d40535b8a8454f7ef19bba4d558fd7d4ac"`
[INFO] [stdout] 16c55e3224db335ab375427da6feb5d40535b8a8454f7ef19bba4d558fd7d4ac