[INFO] cloning repository https://github.com/neiskip/negamax-tic-tac-toe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neiskip/negamax-tic-tac-toe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneiskip%2Fnegamax-tic-tac-toe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneiskip%2Fnegamax-tic-tac-toe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 539ed0b7b20b73277e9e34c5ae4608198e0e8515
[INFO] testing neiskip/negamax-tic-tac-toe against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneiskip%2Fnegamax-tic-tac-toe" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/neiskip/negamax-tic-tac-toe
[INFO] finished tweaking git repo https://github.com/neiskip/negamax-tic-tac-toe
[INFO] tweaked toml for git repo https://github.com/neiskip/negamax-tic-tac-toe written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/neiskip/negamax-tic-tac-toe on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/neiskip/negamax-tic-tac-toe 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62cb48a9d1ad536b2f43a7e6e942488c384b1b2baf4917df40c01014b04badf8
[INFO] running `Command { std: "docker" "start" "-a" "62cb48a9d1ad536b2f43a7e6e942488c384b1b2baf4917df40c01014b04badf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62cb48a9d1ad536b2f43a7e6e942488c384b1b2baf4917df40c01014b04badf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62cb48a9d1ad536b2f43a7e6e942488c384b1b2baf4917df40c01014b04badf8", kill_on_drop: false }`
[INFO] [stdout] 62cb48a9d1ad536b2f43a7e6e942488c384b1b2baf4917df40c01014b04badf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] b3c889b81d2e2a67aa1b1bfff021cc5c7683efdbb5ee50419b898a0f640102cf
[INFO] running `Command { std: "docker" "start" "-a" "b3c889b81d2e2a67aa1b1bfff021cc5c7683efdbb5ee50419b898a0f640102cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling my_ttt_negamax v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::time::SystemTime`
[INFO] [stdout]  --> src/board.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::time::SystemTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::raw::c_char`
[INFO] [stdout]  --> src/player.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::os::raw::c_char;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/board.rs:98:18
[INFO] [stdout]    |
[INFO] [stdout] 98 |             Some(i) => true,
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/strategy.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut score = match eval(&board) {
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/strategy.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut score = estimate_value(board, player, depth);
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c_choice` is never read
[INFO] [stdout]   --> src/main.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut c_choice = String::from("");
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eval` is never used
[INFO] [stdout]  --> src/strategy.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn eval(board: &Board) -> Player {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `minimax` is never used
[INFO] [stdout]   --> src/strategy.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn minimax(board: &mut Board, depth: i32, player: &Player) -> Vec<i32>{
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `Command { std: "docker" "inspect" "b3c889b81d2e2a67aa1b1bfff021cc5c7683efdbb5ee50419b898a0f640102cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3c889b81d2e2a67aa1b1bfff021cc5c7683efdbb5ee50419b898a0f640102cf", kill_on_drop: false }`
[INFO] [stdout] b3c889b81d2e2a67aa1b1bfff021cc5c7683efdbb5ee50419b898a0f640102cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 88ffbf9e2544bca9b6e668a9ecba9f3d3c003d9b7e82025819246f69d7a65348
[INFO] running `Command { std: "docker" "start" "-a" "88ffbf9e2544bca9b6e668a9ecba9f3d3c003d9b7e82025819246f69d7a65348", kill_on_drop: false }`
[INFO] [stderr]    Compiling my_ttt_negamax v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::time::SystemTime`
[INFO] [stdout]  --> src/board.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::time::SystemTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::raw::c_char`
[INFO] [stdout]  --> src/player.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::os::raw::c_char;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/board.rs:98:18
[INFO] [stdout]    |
[INFO] [stdout] 98 |             Some(i) => true,
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/strategy.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut score = match eval(&board) {
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/strategy.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut score = estimate_value(board, player, depth);
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c_choice` is never read
[INFO] [stdout]   --> src/main.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut c_choice = String::from("");
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eval` is never used
[INFO] [stdout]  --> src/strategy.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn eval(board: &Board) -> Player {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `minimax` is never used
[INFO] [stdout]   --> src/strategy.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn minimax(board: &mut Board, depth: i32, player: &Player) -> Vec<i32>{
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "88ffbf9e2544bca9b6e668a9ecba9f3d3c003d9b7e82025819246f69d7a65348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88ffbf9e2544bca9b6e668a9ecba9f3d3c003d9b7e82025819246f69d7a65348", kill_on_drop: false }`
[INFO] [stdout] 88ffbf9e2544bca9b6e668a9ecba9f3d3c003d9b7e82025819246f69d7a65348
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] c3c0ad22b60226c2bc87d8b2d6f202e65cd392b49e09216440768cc415ac8405
[INFO] running `Command { std: "docker" "start" "-a" "c3c0ad22b60226c2bc87d8b2d6f202e65cd392b49e09216440768cc415ac8405", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::time::SystemTime`
[INFO] [stderr]  --> src/board.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::time::SystemTime;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::os::raw::c_char`
[INFO] [stderr]  --> src/player.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::os::raw::c_char;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/board.rs:98:18
[INFO] [stderr]    |
[INFO] [stderr] 98 |             Some(i) => true,
[INFO] [stderr]    |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/strategy.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let mut score = match eval(&board) {
[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/strategy.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut score = estimate_value(board, player, depth);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c_choice` is never read
[INFO] [stderr]   --> src/main.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut c_choice = String::from("");
[INFO] [stdout] 
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: function `eval` is never used
[INFO] [stderr]  --> src/strategy.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn eval(board: &Board) -> Player {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `minimax` is never used
[INFO] [stderr]   --> src/strategy.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn minimax(board: &mut Board, depth: i32, player: &Player) -> Vec<i32>{
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `my_ttt_negamax` (bin "my_ttt_negamax" test) generated 8 warnings (run `cargo fix --bin "my_ttt_negamax" --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/my_ttt_negamax-552307aef07e7ff7)
[INFO] running `Command { std: "docker" "inspect" "c3c0ad22b60226c2bc87d8b2d6f202e65cd392b49e09216440768cc415ac8405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3c0ad22b60226c2bc87d8b2d6f202e65cd392b49e09216440768cc415ac8405", kill_on_drop: false }`
[INFO] [stdout] c3c0ad22b60226c2bc87d8b2d6f202e65cd392b49e09216440768cc415ac8405