[INFO] cloning repository https://github.com/PatrykStronski/sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PatrykStronski/sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPatrykStronski%2Fsudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPatrykStronski%2Fsudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 952b894501e0b359a1d47cef7375735cc23a6c8f
[INFO] testing PatrykStronski/sudoku against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPatrykStronski%2Fsudoku" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PatrykStronski/sudoku on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PatrykStronski/sudoku
[INFO] finished tweaking git repo https://github.com/PatrykStronski/sudoku
[INFO] tweaked toml for git repo https://github.com/PatrykStronski/sudoku written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/PatrykStronski/sudoku already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68ef744dd2dbe24fee038b1ec8bc1644810ac373dc7fb7fc639f8381d184e9e8
[INFO] running `Command { std: "docker" "start" "-a" "68ef744dd2dbe24fee038b1ec8bc1644810ac373dc7fb7fc639f8381d184e9e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68ef744dd2dbe24fee038b1ec8bc1644810ac373dc7fb7fc639f8381d184e9e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ef744dd2dbe24fee038b1ec8bc1644810ac373dc7fb7fc639f8381d184e9e8", kill_on_drop: false }`
[INFO] [stdout] 68ef744dd2dbe24fee038b1ec8bc1644810ac373dc7fb7fc639f8381d184e9e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 670f590e53afa2e5d2cf7f31fc9d70ca95008e6a2d9a90376f21dbb049863f63
[INFO] running `Command { std: "docker" "start" "-a" "670f590e53afa2e5d2cf7f31fc9d70ca95008e6a2d9a90376f21dbb049863f63", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.12
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `print_board`
[INFO] [stdout]   --> src/sudoku.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn print_board(&self, board: Vec<i16>) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_current_board`
[INFO] [stdout]   --> src/sudoku.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn print_current_board(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_errors_with_solution`
[INFO] [stdout]   --> src/sudoku.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn get_errors_with_solution(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_quantity_empty_fields`
[INFO] [stdout]    --> src/sudoku.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn get_quantity_empty_fields(&self) -> u8 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 01s
[INFO] running `Command { std: "docker" "inspect" "670f590e53afa2e5d2cf7f31fc9d70ca95008e6a2d9a90376f21dbb049863f63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "670f590e53afa2e5d2cf7f31fc9d70ca95008e6a2d9a90376f21dbb049863f63", kill_on_drop: false }`
[INFO] [stdout] 670f590e53afa2e5d2cf7f31fc9d70ca95008e6a2d9a90376f21dbb049863f63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e36669753ee8ad27236df4fa750e6ecadfff7074a721a6479b614cd19958239
[INFO] running `Command { std: "docker" "start" "-a" "7e36669753ee8ad27236df4fa750e6ecadfff7074a721a6479b614cd19958239", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `print_board`
[INFO] [stdout]   --> src/sudoku.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn print_board(&self, board: Vec<i16>) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_current_board`
[INFO] [stdout]   --> src/sudoku.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn print_current_board(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_errors_with_solution`
[INFO] [stdout]   --> src/sudoku.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn get_errors_with_solution(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_quantity_empty_fields`
[INFO] [stdout]    --> src/sudoku.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn get_quantity_empty_fields(&self) -> u8 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "7e36669753ee8ad27236df4fa750e6ecadfff7074a721a6479b614cd19958239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e36669753ee8ad27236df4fa750e6ecadfff7074a721a6479b614cd19958239", kill_on_drop: false }`
[INFO] [stdout] 7e36669753ee8ad27236df4fa750e6ecadfff7074a721a6479b614cd19958239
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a11bda595e7cff6a052b4648300d4352d8d02383d6f7aa6daad6b6869c05ceb0
[INFO] running `Command { std: "docker" "start" "-a" "a11bda595e7cff6a052b4648300d4352d8d02383d6f7aa6daad6b6869c05ceb0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `print_board`
[INFO] [stderr]   --> src/sudoku.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn print_board(&self, board: Vec<i16>) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print_current_board`
[INFO] [stderr]   --> src/sudoku.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn print_current_board(&self) -> String {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_errors_with_solution`
[INFO] [stderr]   --> src/sudoku.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn get_errors_with_solution(&self) -> u8 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_quantity_empty_fields`
[INFO] [stderr]    --> src/sudoku.rs:153:12
[INFO] [stderr]     |
[INFO] [stderr] 153 |     pub fn get_quantity_empty_fields(&self) -> u8 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `sudoku` (bin "sudoku" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.93s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku-c452e5a5b56fcad7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a11bda595e7cff6a052b4648300d4352d8d02383d6f7aa6daad6b6869c05ceb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a11bda595e7cff6a052b4648300d4352d8d02383d6f7aa6daad6b6869c05ceb0", kill_on_drop: false }`
[INFO] [stdout] a11bda595e7cff6a052b4648300d4352d8d02383d6f7aa6daad6b6869c05ceb0