[INFO] cloning repository https://github.com/mtlll/transparov
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mtlll/transparov" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtlll%2Ftransparov", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtlll%2Ftransparov'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 612b5cb6df6c6d1345ced285628627cbc7521ac5
[INFO] checking mtlll/transparov against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtlll%2Ftransparov" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mtlll/transparov
[INFO] finished tweaking git repo https://github.com/mtlll/transparov
[INFO] tweaked toml for git repo https://github.com/mtlll/transparov written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mtlll/transparov on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mtlll/transparov 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4158bc0368d3326f4f04a82b9260d40e9f71ff765f2339aee8511c4a77dfd342
[INFO] running `Command { std: "docker" "start" "-a" "4158bc0368d3326f4f04a82b9260d40e9f71ff765f2339aee8511c4a77dfd342", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4158bc0368d3326f4f04a82b9260d40e9f71ff765f2339aee8511c4a77dfd342", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4158bc0368d3326f4f04a82b9260d40e9f71ff765f2339aee8511c4a77dfd342", kill_on_drop: false }`
[INFO] [stdout] 4158bc0368d3326f4f04a82b9260d40e9f71ff765f2339aee8511c4a77dfd342
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 463c51bf3d1e5f363078be26de5f7c5ce07fcc8007fdd9c7d748f75ba2d7e035
[INFO] running `Command { std: "docker" "start" "-a" "463c51bf3d1e5f363078be26de5f7c5ce07fcc8007fdd9c7d748f75ba2d7e035", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking object v0.26.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking nbchan v0.1.3
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking nix v0.22.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking simplelog v0.10.0
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]     Checking fibers v0.1.13
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling chess v3.2.0
[INFO] [stderr]     Checking ctrlc v3.2.0
[INFO] [stderr]     Checking vampirc-uci v0.11.0
[INFO] [stderr]     Checking chessengine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/engine/threads.rs:385:13
[INFO] [stdout]     |
[INFO] [stdout] 385 |         let mut workers = RefCell::new(Vec::new());
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `eval`
[INFO] [stdout]   --> src/engine/search.rs:98:29
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let &EvalMove { mv, eval } = em;
[INFO] [stdout]    |                             ^^^^ help: try ignoring the field: `eval: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/engine/threads.rs:385:13
[INFO] [stdout]     |
[INFO] [stdout] 385 |         let mut workers = RefCell::new(Vec::new());
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mv`
[INFO] [stdout]    --> src/engine/threads.rs:265:38
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     .map(|EvalMove { mv, eval }| eval)
[INFO] [stdout]     |                                      ^^ help: try ignoring the field: `mv: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `best_value` is never read
[INFO] [stdout]    --> src/engine/threads.rs:255:30
[INFO] [stdout]     |
[INFO] [stdout] 255 |         let mut best_value = alpha;
[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: `lock`
[INFO] [stdout]    --> src/engine/threads.rs:341:13
[INFO] [stdout]     |
[INFO] [stdout] 341 |         let lock = data.lock.lock().unwrap();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_lock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `moves`
[INFO] [stdout]   --> src/engine/mod.rs:42:41
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn search(&mut self, board: &Board, moves: Option<Vec<ChessMove>>, depth: Option<u8>) {
[INFO] [stdout]    |                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_moves`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `later`
[INFO] [stdout]    --> src/engine/mod.rs:127:36
[INFO] [stdout]     |
[INFO] [stdout] 127 |             UciMessage::Register { later, name, code } => {}
[INFO] [stdout]     |                                    ^^^^^ help: try ignoring the field: `later: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/engine/mod.rs:127:43
[INFO] [stdout]     |
[INFO] [stdout] 127 |             UciMessage::Register { later, name, code } => {}
[INFO] [stdout]     |                                           ^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/engine/mod.rs:127:49
[INFO] [stdout]     |
[INFO] [stdout] 127 |             UciMessage::Register { later, name, code } => {}
[INFO] [stdout]     |                                                 ^^^^ help: try ignoring the field: `code: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `startpos`
[INFO] [stdout]    --> src/engine/mod.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 startpos,
[INFO] [stdout]     |                 ^^^^^^^^ help: try ignoring the field: `startpos: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `best_move`
[INFO] [stdout]    --> src/engine/mod.rs:194:36
[INFO] [stdout]     |
[INFO] [stdout] 194 |             UciMessage::BestMove { best_move, .. } => {
[INFO] [stdout]     |                                    ^^^^^^^^^ help: try ignoring the field: `best_move: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `eval`
[INFO] [stdout]   --> src/engine/search.rs:98:29
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let &EvalMove { mv, eval } = em;
[INFO] [stdout]    |                             ^^^^ help: try ignoring the field: `eval: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |     IOError(io::Error),
[INFO] [stdout]    |     ------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 20 -     IOError(io::Error),
[INFO] [stdout] 20 +     IOError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DELTA_MARGIN` is never used
[INFO] [stdout]    --> src/engine/search.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 | static DELTA_MARGIN: Eval = 200;
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pv` is never read
[INFO] [stdout]   --> src/engine/threads.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct RootData {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pv: Vec<ChessMove>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear` is never used
[INFO] [stdout]    --> src/engine/threads.rs:353:12
[INFO] [stdout]     |
[INFO] [stdout] 338 | impl Worker {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 353 |     pub fn clear(&mut self) {}
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CacheTable` is never used
[INFO] [stdout]   --> src/engine/ttable.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub type CacheTable = Arc<TTable>;
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `new_search` is never used
[INFO] [stdout]    --> src/engine/ttable.rs:217:12
[INFO] [stdout]     |
[INFO] [stdout] 149 | impl TTable {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 217 |     pub fn new_search(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_on_board` is never used
[INFO] [stdout]    --> src/engine/ttable.rs:275:12
[INFO] [stdout]     |
[INFO] [stdout] 270 | impl EvalMove {
[INFO] [stdout]     | ------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 275 |     pub fn new_on_board(mv: ChessMove, board: &Board) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mv`
[INFO] [stdout]    --> src/engine/threads.rs:265:38
[INFO] [stdout]     |
[INFO] [stdout] 265 |                     .map(|EvalMove { mv, eval }| eval)
[INFO] [stdout]     |                                      ^^ help: try ignoring the field: `mv: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `best_value` is never read
[INFO] [stdout]    --> src/engine/threads.rs:255:30
[INFO] [stdout]     |
[INFO] [stdout] 255 |         let mut best_value = alpha;
[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: `lock`
[INFO] [stdout]    --> src/engine/threads.rs:341:13
[INFO] [stdout]     |
[INFO] [stdout] 341 |         let lock = data.lock.lock().unwrap();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_lock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     init_logger();
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let _ = init_logger();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     uci_loop();
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let _ = uci_loop();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 | /         ctrlc::set_handler(move || {
[INFO] [stdout] 83 | |             info!("received SIGINT/SIGTERM. Quitting...");
[INFO] [stdout] 84 | |             tx.send(UciMessage::Quit);
[INFO] [stdout] 85 | |             running.store(false, Ordering::Relaxed);
[INFO] [stdout] 86 | |             info!("Told main thread to quit.");
[INFO] [stdout] 87 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let _ = ctrlc::set_handler(move || {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |             tx.send(UciMessage::Quit);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 84 |             let _ = tx.send(UciMessage::Quit);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     handle.join();
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let _ = handle.join();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/engine/threads.rs:217:17
[INFO] [stdout]     |
[INFO] [stdout] 217 | /                 self.cv.wait_while(lock, |_| {
[INFO] [stdout] 218 | |                     !(self.searching.load(Ordering::Acquire) || self.exit.load(Ordering::Acquire))
[INFO] [stdout] 219 | |                 });
[INFO] [stdout]     | |__________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 217 |                 let _ = self.cv.wait_while(lock, |_| {
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/engine/threads.rs:240:17
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 self.tx.send(UciMessage::best_move(best_move));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 let _ = self.tx.send(UciMessage::best_move(best_move));
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/engine/threads.rs:301:21
[INFO] [stdout]     |
[INFO] [stdout] 301 | /                     self.tx
[INFO] [stdout] 302 | |                         .send(make_info_message(data.moves[0], data.completed_depth));
[INFO] [stdout]     | |_____________________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 301 |                     let _ = self.tx
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/engine/threads.rs:349:9
[INFO] [stdout]     |
[INFO] [stdout] 349 | /         data.cv
[INFO] [stdout] 350 | |             .wait_while(lock, |_| data.searching.load(Ordering::Acquire));
[INFO] [stdout]     | |_________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 349 |         let _ = data.cv
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/engine/threads.rs:363:9
[INFO] [stdout]     |
[INFO] [stdout] 363 |         self.handle.join();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 363 |         let _ = self.handle.join();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/engine/threads.rs:469:16
[INFO] [stdout]     |
[INFO] [stdout] 469 |     fn workers(&self) -> Ref<Vec<Worker>> {
[INFO] [stdout]     |                ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                |
[INFO] [stdout]     |                the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 469 |     fn workers(&self) -> Ref<'_, Vec<Worker>> {
[INFO] [stdout]     |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/engine/threads.rs:477:13
[INFO] [stdout]     |
[INFO] [stdout] 477 |     fn main(&self) -> Ref<Worker> {
[INFO] [stdout]     |             ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 477 |     fn main(&self) -> Ref<'_, Worker> {
[INFO] [stdout]     |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `moves`
[INFO] [stdout]   --> src/engine/mod.rs:42:41
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn search(&mut self, board: &Board, moves: Option<Vec<ChessMove>>, depth: Option<u8>) {
[INFO] [stdout]    |                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_moves`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `later`
[INFO] [stdout]    --> src/engine/mod.rs:127:36
[INFO] [stdout]     |
[INFO] [stdout] 127 |             UciMessage::Register { later, name, code } => {}
[INFO] [stdout]     |                                    ^^^^^ help: try ignoring the field: `later: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/engine/mod.rs:127:43
[INFO] [stdout]     |
[INFO] [stdout] 127 |             UciMessage::Register { later, name, code } => {}
[INFO] [stdout]     |                                           ^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/engine/mod.rs:127:49
[INFO] [stdout]     |
[INFO] [stdout] 127 |             UciMessage::Register { later, name, code } => {}
[INFO] [stdout]     |                                                 ^^^^ help: try ignoring the field: `code: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `startpos`
[INFO] [stdout]    --> src/engine/mod.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 startpos,
[INFO] [stdout]     |                 ^^^^^^^^ help: try ignoring the field: `startpos: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `best_move`
[INFO] [stdout]    --> src/engine/mod.rs:194:36
[INFO] [stdout]     |
[INFO] [stdout] 194 |             UciMessage::BestMove { best_move, .. } => {
[INFO] [stdout]     |                                    ^^^^^^^^^ help: try ignoring the field: `best_move: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |     IOError(io::Error),
[INFO] [stdout]    |     ------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 20 -     IOError(io::Error),
[INFO] [stdout] 20 +     IOError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `DELTA_MARGIN` is never used
[INFO] [stdout]    --> src/engine/search.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 | static DELTA_MARGIN: Eval = 200;
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pv` is never read
[INFO] [stdout]   --> src/engine/threads.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct RootData {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pv: Vec<ChessMove>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear` is never used
[INFO] [stdout]    --> src/engine/threads.rs:353:12
[INFO] [stdout]     |
[INFO] [stdout] 338 | impl Worker {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 353 |     pub fn clear(&mut self) {}
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CacheTable` is never used
[INFO] [stdout]   --> src/engine/ttable.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub type CacheTable = Arc<TTable>;
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `new_search` is never used
[INFO] [stdout]    --> src/engine/ttable.rs:217:12
[INFO] [stdout]     |
[INFO] [stdout] 149 | impl TTable {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 217 |     pub fn new_search(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_on_board` is never used
[INFO] [stdout]    --> src/engine/ttable.rs:275:12
[INFO] [stdout]     |
[INFO] [stdout] 270 | impl EvalMove {
[INFO] [stdout]     | ------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 275 |     pub fn new_on_board(mv: ChessMove, board: &Board) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     init_logger();
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let _ = init_logger();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     uci_loop();
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let _ = uci_loop();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 | /         ctrlc::set_handler(move || {
[INFO] [stdout] 83 | |             info!("received SIGINT/SIGTERM. Quitting...");
[INFO] [stdout] 84 | |             tx.send(UciMessage::Quit);
[INFO] [stdout] 85 | |             running.store(false, Ordering::Relaxed);
[INFO] [stdout] 86 | |             info!("Told main thread to quit.");
[INFO] [stdout] 87 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let _ = ctrlc::set_handler(move || {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |             tx.send(UciMessage::Quit);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 84 |             let _ = tx.send(UciMessage::Quit);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     handle.join();
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let _ = handle.join();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/engine/threads.rs:217:17
[INFO] [stdout]     |
[INFO] [stdout] 217 | /                 self.cv.wait_while(lock, |_| {
[INFO] [stdout] 218 | |                     !(self.searching.load(Ordering::Acquire) || self.exit.load(Ordering::Acquire))
[INFO] [stdout] 219 | |                 });
[INFO] [stdout]     | |__________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 217 |                 let _ = self.cv.wait_while(lock, |_| {
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/engine/threads.rs:240:17
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 self.tx.send(UciMessage::best_move(best_move));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 let _ = self.tx.send(UciMessage::best_move(best_move));
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/engine/threads.rs:301:21
[INFO] [stdout]     |
[INFO] [stdout] 301 | /                     self.tx
[INFO] [stdout] 302 | |                         .send(make_info_message(data.moves[0], data.completed_depth));
[INFO] [stdout]     | |_____________________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 301 |                     let _ = self.tx
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/engine/threads.rs:349:9
[INFO] [stdout]     |
[INFO] [stdout] 349 | /         data.cv
[INFO] [stdout] 350 | |             .wait_while(lock, |_| data.searching.load(Ordering::Acquire));
[INFO] [stdout]     | |_________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 349 |         let _ = data.cv
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/engine/threads.rs:363:9
[INFO] [stdout]     |
[INFO] [stdout] 363 |         self.handle.join();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 363 |         let _ = self.handle.join();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/engine/threads.rs:469:16
[INFO] [stdout]     |
[INFO] [stdout] 469 |     fn workers(&self) -> Ref<Vec<Worker>> {
[INFO] [stdout]     |                ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                |
[INFO] [stdout]     |                the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 469 |     fn workers(&self) -> Ref<'_, Vec<Worker>> {
[INFO] [stdout]     |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/engine/threads.rs:477:13
[INFO] [stdout]     |
[INFO] [stdout] 477 |     fn main(&self) -> Ref<Worker> {
[INFO] [stdout]     |             ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 477 |     fn main(&self) -> Ref<'_, Worker> {
[INFO] [stdout]     |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "463c51bf3d1e5f363078be26de5f7c5ce07fcc8007fdd9c7d748f75ba2d7e035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "463c51bf3d1e5f363078be26de5f7c5ce07fcc8007fdd9c7d748f75ba2d7e035", kill_on_drop: false }`
[INFO] [stdout] 463c51bf3d1e5f363078be26de5f7c5ce07fcc8007fdd9c7d748f75ba2d7e035
