[INFO] cloning repository https://github.com/viliusi/Recursive-Tic-Tac-Toe-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/viliusi/Recursive-Tic-Tac-Toe-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviliusi%2FRecursive-Tic-Tac-Toe-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviliusi%2FRecursive-Tic-Tac-Toe-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9cf379d70a9fafc9424b73ada2112d5351b28f2
[INFO] checking viliusi/Recursive-Tic-Tac-Toe-Rust against try#3fada14ee01d755dc8076e611f11bf65b28ffd21 for pr-154971
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviliusi%2FRecursive-Tic-Tac-Toe-Rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/viliusi/Recursive-Tic-Tac-Toe-Rust
[INFO] finished tweaking git repo https://github.com/viliusi/Recursive-Tic-Tac-Toe-Rust
[INFO] tweaked toml for git repo https://github.com/viliusi/Recursive-Tic-Tac-Toe-Rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/viliusi/Recursive-Tic-Tac-Toe-Rust on toolchain 3fada14ee01d755dc8076e611f11bf65b28ffd21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/viliusi/Recursive-Tic-Tac-Toe-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking viliusi/Recursive-Tic-Tac-Toe-Rust against try#3fada14ee01d755dc8076e611f11bf65b28ffd21 for pr-154971
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviliusi%2FRecursive-Tic-Tac-Toe-Rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/viliusi/Recursive-Tic-Tac-Toe-Rust
[INFO] finished tweaking git repo https://github.com/viliusi/Recursive-Tic-Tac-Toe-Rust
[INFO] tweaked toml for git repo https://github.com/viliusi/Recursive-Tic-Tac-Toe-Rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/viliusi/Recursive-Tic-Tac-Toe-Rust on toolchain 3fada14ee01d755dc8076e611f11bf65b28ffd21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/viliusi/Recursive-Tic-Tac-Toe-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd9fbea0e7a1247df9af6cb77ad01ea64b3747aa6c72570a0de4db380a1149dc
[INFO] running `Command { std: "docker" "start" "-a" "cd9fbea0e7a1247df9af6cb77ad01ea64b3747aa6c72570a0de4db380a1149dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd9fbea0e7a1247df9af6cb77ad01ea64b3747aa6c72570a0de4db380a1149dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd9fbea0e7a1247df9af6cb77ad01ea64b3747aa6c72570a0de4db380a1149dc", kill_on_drop: false }`
[INFO] [stdout] cd9fbea0e7a1247df9af6cb77ad01ea64b3747aa6c72570a0de4db380a1149dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3971b7051c71b7ec05fc5294a71ba1d490b2898c0849ebf8cd7ed95cc6562c0f
[INFO] running `Command { std: "docker" "start" "-a" "3971b7051c71b7ec05fc5294a71ba1d490b2898c0849ebf8cd7ed95cc6562c0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking console v0.15.11
[INFO] [stderr]     Checking recursive-tic-tac-toe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:64:24
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     if (preview == 9) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 64 -                     if (preview == 9) {
[INFO] [stdout] 64 +                     if preview == 9  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:64:24
[INFO] [stdout]    |
[INFO] [stdout] 64 |                     if (preview == 9) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 64 -                     if (preview == 9) {
[INFO] [stdout] 64 +                     if preview == 9  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `return_pos` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut return_pos = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_return_pos` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `return_pos` is never read
[INFO] [stdout]   --> src/main.rs:66:25
[INFO] [stdout]    |
[INFO] [stdout] 66 |                         return_pos = 9;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/main.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |     let mut i: u8 = 0;
[INFO] [stdout]     |                     ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 159 |         i = i_target;
[INFO] [stdout]     |         ------------ `i` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]    --> src/main.rs:208:5
[INFO] [stdout]     |
[INFO] [stdout] 208 |     board: &mut [[u8; 9]; 9],
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `focus`
[INFO] [stdout]    --> src/main.rs:209:5
[INFO] [stdout]     |
[INFO] [stdout] 209 |     focus: &mut u8,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_focus`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `preview`
[INFO] [stdout]    --> src/main.rs:210:5
[INFO] [stdout]     |
[INFO] [stdout] 210 |     preview: &mut u8,
[INFO] [stdout]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_preview`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_turn`
[INFO] [stdout]    --> src/main.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     current_turn: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_turn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/main.rs:267:5
[INFO] [stdout]     |
[INFO] [stdout] 267 |     input: char,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]    --> src/main.rs:268:5
[INFO] [stdout]     |
[INFO] [stdout] 268 |     board: &mut [[u8; 9]; 9],
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `return_pos` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut return_pos = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_return_pos` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `return_pos` is never read
[INFO] [stdout]   --> src/main.rs:66:25
[INFO] [stdout]    |
[INFO] [stdout] 66 |                         return_pos = 9;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_turn`
[INFO] [stdout]    --> src/main.rs:270:5
[INFO] [stdout]     |
[INFO] [stdout] 270 |     current_turn: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_turn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `j` is never read
[INFO] [stdout]    --> src/main.rs:300:17
[INFO] [stdout]     |
[INFO] [stdout] 300 |     let mut j = 0;
[INFO] [stdout]     |                 ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 310 |             j = j_target;
[INFO] [stdout]     |             ------------ `j` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/main.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |     let mut i: u8 = 0;
[INFO] [stdout]     |                     ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 159 |         i = i_target;
[INFO] [stdout]     |         ------------ `i` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]    --> src/main.rs:208:5
[INFO] [stdout]     |
[INFO] [stdout] 208 |     board: &mut [[u8; 9]; 9],
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `focus`
[INFO] [stdout]    --> src/main.rs:209:5
[INFO] [stdout]     |
[INFO] [stdout] 209 |     focus: &mut u8,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_focus`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `preview`
[INFO] [stdout]    --> src/main.rs:210:5
[INFO] [stdout]     |
[INFO] [stdout] 210 |     preview: &mut u8,
[INFO] [stdout]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_preview`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_turn`
[INFO] [stdout]    --> src/main.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     current_turn: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_turn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/main.rs:267:5
[INFO] [stdout]     |
[INFO] [stdout] 267 |     input: char,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]    --> src/main.rs:268:5
[INFO] [stdout]     |
[INFO] [stdout] 268 |     board: &mut [[u8; 9]; 9],
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_turn`
[INFO] [stdout]    --> src/main.rs:270:5
[INFO] [stdout]     |
[INFO] [stdout] 270 |     current_turn: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_turn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `j` is never read
[INFO] [stdout]    --> src/main.rs:300:17
[INFO] [stdout]     |
[INFO] [stdout] 300 |     let mut j = 0;
[INFO] [stdout]     |                 ^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 310 |             j = j_target;
[INFO] [stdout]     |             ------------ `j` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "3971b7051c71b7ec05fc5294a71ba1d490b2898c0849ebf8cd7ed95cc6562c0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3971b7051c71b7ec05fc5294a71ba1d490b2898c0849ebf8cd7ed95cc6562c0f", kill_on_drop: false }`
[INFO] [stdout] 3971b7051c71b7ec05fc5294a71ba1d490b2898c0849ebf8cd7ed95cc6562c0f
