[INFO] cloning repository https://github.com/ferryale/snowhead
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ferryale/snowhead" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferryale%2Fsnowhead", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferryale%2Fsnowhead'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68c6535dc59426f6adeeafdef477330a8760351d
[INFO] testing ferryale/snowhead against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferryale%2Fsnowhead" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ferryale/snowhead on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ferryale/snowhead
[INFO] finished tweaking git repo https://github.com/ferryale/snowhead
[INFO] tweaked toml for git repo https://github.com/ferryale/snowhead written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/ferryale/snowhead already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c98f62a783559eb09a3db8760bc1ff98f3cf42a6a51a6fc41c00ecc5293f6ae
[INFO] running `Command { std: "docker" "start" "-a" "6c98f62a783559eb09a3db8760bc1ff98f3cf42a6a51a6fc41c00ecc5293f6ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c98f62a783559eb09a3db8760bc1ff98f3cf42a6a51a6fc41c00ecc5293f6ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c98f62a783559eb09a3db8760bc1ff98f3cf42a6a51a6fc41c00ecc5293f6ae", kill_on_drop: false }`
[INFO] [stdout] 6c98f62a783559eb09a3db8760bc1ff98f3cf42a6a51a6fc41c00ecc5293f6ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7317c00c8ffe8bc1e8c8779d8325479eee7f79a7721ed70ab7b019cb48ad73ed
[INFO] running `Command { std: "docker" "start" "-a" "7317c00c8ffe8bc1e8c8779d8325479eee7f79a7721ed70ab7b019cb48ad73ed", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling snowhead v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BLACK`, `WHITE`
[INFO] [stdout]  --> src/search.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::types::piece::{WHITE, BLACK, PIECE_NB, Color};
[INFO] [stdout]   |                           ^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TTFlag`, `TranspositionTable`
[INFO] [stdout]  --> src/uci.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::tt::{TranspositionTable, TTFlag};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::types::r#move::Move`
[INFO] [stdout]  --> src/tune.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::types::r#move::Move;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::position::Position`
[INFO] [stdout]  --> src/tune.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::position::Position;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `red` is never read
[INFO] [stdout]    --> src/search.rs:434:13
[INFO] [stdout]     |
[INFO] [stdout] 434 |     let mut red = 0;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ret` is never read
[INFO] [stdout]    --> src/search.rs:209:17
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let mut ret = String::new();
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `nps` is assigned to, but never used
[INFO] [stdout]    --> src/search.rs:326:17
[INFO] [stdout]     |
[INFO] [stdout] 326 |         let mut nps;
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_nps` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `nps` is never read
[INFO] [stdout]    --> src/search.rs:355:13
[INFO] [stdout]     |
[INFO] [stdout] 355 |             nps = std::cmp::max(self.nps(), 1_000_000);
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `fen` is assigned to, but never used
[INFO] [stdout]   --> src/tune.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let fen: &str;
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_fen` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fen` is never read
[INFO] [stdout]   --> src/tune.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         fen = START_FEN;
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fen` is never read
[INFO] [stdout]   --> src/tune.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         fen = (&args[3..params]).trim();
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_root_moves`
[INFO] [stdout]    --> src/search.rs:300:8
[INFO] [stdout]     |
[INFO] [stdout] 300 |     fn print_root_moves(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `key16`
[INFO] [stdout]   --> src/tt.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     key16: u16,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TTEntry` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tt.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `snowhead::types::score::*`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use snowhead::types::score::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `snowhead::tune`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use snowhead::tune;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `snowhead::psqt`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use snowhead::psqt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.75s
[INFO] running `Command { std: "docker" "inspect" "7317c00c8ffe8bc1e8c8779d8325479eee7f79a7721ed70ab7b019cb48ad73ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7317c00c8ffe8bc1e8c8779d8325479eee7f79a7721ed70ab7b019cb48ad73ed", kill_on_drop: false }`
[INFO] [stdout] 7317c00c8ffe8bc1e8c8779d8325479eee7f79a7721ed70ab7b019cb48ad73ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6218b3e315989dfae3605ff0e3d9b13c34c0670165a2e17f2e14b138245a380d
[INFO] running `Command { std: "docker" "start" "-a" "6218b3e315989dfae3605ff0e3d9b13c34c0670165a2e17f2e14b138245a380d", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `BLACK`, `WHITE`
[INFO] [stdout]  --> src/search.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::types::piece::{WHITE, BLACK, PIECE_NB, Color};
[INFO] [stdout]   |                           ^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TTFlag`, `TranspositionTable`
[INFO] [stdout]  --> src/uci.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::tt::{TranspositionTable, TTFlag};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::types::r#move::Move`
[INFO] [stdout]  --> src/tune.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::types::r#move::Move;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::position::Position`
[INFO] [stdout]  --> src/tune.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::position::Position;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `red` is never read
[INFO] [stdout]    --> src/search.rs:434:13
[INFO] [stdout]     |
[INFO] [stdout] 434 |     let mut red = 0;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ret` is never read
[INFO] [stdout]    --> src/search.rs:209:17
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let mut ret = String::new();
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `nps` is assigned to, but never used
[INFO] [stdout]    --> src/search.rs:326:17
[INFO] [stdout]     |
[INFO] [stdout] 326 |         let mut nps;
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_nps` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `nps` is never read
[INFO] [stdout]    --> src/search.rs:355:13
[INFO] [stdout]     |
[INFO] [stdout] 355 |             nps = std::cmp::max(self.nps(), 1_000_000);
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `fen` is assigned to, but never used
[INFO] [stdout]   --> src/tune.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let fen: &str;
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_fen` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fen` is never read
[INFO] [stdout]   --> src/tune.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         fen = START_FEN;
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fen` is never read
[INFO] [stdout]   --> src/tune.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         fen = (&args[3..params]).trim();
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_root_moves`
[INFO] [stdout]    --> src/search.rs:300:8
[INFO] [stdout]     |
[INFO] [stdout] 300 |     fn print_root_moves(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `key16`
[INFO] [stdout]   --> src/tt.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     key16: u16,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TTEntry` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tt.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling snowhead v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `snowhead::types::score::*`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use snowhead::types::score::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `snowhead::tune`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use snowhead::tune;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `snowhead::psqt`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use snowhead::psqt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BLACK`, `WHITE`
[INFO] [stdout]  --> src/search.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::types::piece::{WHITE, BLACK, PIECE_NB, Color};
[INFO] [stdout]   |                           ^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TTFlag`, `TranspositionTable`
[INFO] [stdout]  --> src/uci.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::tt::{TranspositionTable, TTFlag};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::types::r#move::Move`
[INFO] [stdout]  --> src/tune.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::types::r#move::Move;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::position::Position`
[INFO] [stdout]  --> src/tune.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::position::Position;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `red` is never read
[INFO] [stdout]    --> src/search.rs:434:13
[INFO] [stdout]     |
[INFO] [stdout] 434 |     let mut red = 0;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ret` is never read
[INFO] [stdout]    --> src/search.rs:209:17
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let mut ret = String::new();
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `nps` is assigned to, but never used
[INFO] [stdout]    --> src/search.rs:326:17
[INFO] [stdout]     |
[INFO] [stdout] 326 |         let mut nps;
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_nps` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `nps` is never read
[INFO] [stdout]    --> src/search.rs:355:13
[INFO] [stdout]     |
[INFO] [stdout] 355 |             nps = std::cmp::max(self.nps(), 1_000_000);
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `fen` is assigned to, but never used
[INFO] [stdout]   --> src/tune.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let fen: &str;
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_fen` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fen` is never read
[INFO] [stdout]   --> src/tune.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         fen = START_FEN;
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fen` is never read
[INFO] [stdout]   --> src/tune.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         fen = (&args[3..params]).trim();
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_root_moves`
[INFO] [stdout]    --> src/search.rs:300:8
[INFO] [stdout]     |
[INFO] [stdout] 300 |     fn print_root_moves(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `key16`
[INFO] [stdout]   --> src/tt.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     key16: u16,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TTEntry` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tt.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "6218b3e315989dfae3605ff0e3d9b13c34c0670165a2e17f2e14b138245a380d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6218b3e315989dfae3605ff0e3d9b13c34c0670165a2e17f2e14b138245a380d", kill_on_drop: false }`
[INFO] [stdout] 6218b3e315989dfae3605ff0e3d9b13c34c0670165a2e17f2e14b138245a380d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3314cabf2571921c67b9cb6b6d6422899bf04683a869bd1ef24ea0dcd5bcf555
[INFO] running `Command { std: "docker" "start" "-a" "3314cabf2571921c67b9cb6b6d6422899bf04683a869bd1ef24ea0dcd5bcf555", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `BLACK`, `WHITE`
[INFO] [stderr]  --> src/search.rs:2:27
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::types::piece::{WHITE, BLACK, PIECE_NB, Color};
[INFO] [stderr]   |                           ^^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `TTFlag`, `TranspositionTable`
[INFO] [stderr]  --> src/uci.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::tt::{TranspositionTable, TTFlag};
[INFO] [stderr]   |                 ^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::types::r#move::Move`
[INFO] [stderr]  --> src/tune.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::types::r#move::Move;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::position::Position`
[INFO] [stderr]  --> src/tune.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::position::Position;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `red` is never read
[INFO] [stderr]    --> src/search.rs:434:13
[INFO] [stderr]     |
[INFO] [stderr] 434 |     let mut red = 0;
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ret` is never read
[INFO] [stderr]    --> src/search.rs:209:17
[INFO] [stderr]     |
[INFO] [stderr] 209 |         let mut ret = String::new();
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `nps` is assigned to, but never used
[INFO] [stderr]    --> src/search.rs:326:17
[INFO] [stderr]     |
[INFO] [stderr] 326 |         let mut nps;
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_nps` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `nps` is never read
[INFO] [stderr]    --> src/search.rs:355:13
[INFO] [stderr]     |
[INFO] [stderr] 355 |             nps = std::cmp::max(self.nps(), 1_000_000);
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `fen` is assigned to, but never used
[INFO] [stderr]   --> src/tune.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let fen: &str;
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_fen` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fen` is never read
[INFO] [stderr]   --> src/tune.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         fen = START_FEN;
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fen` is never read
[INFO] [stderr]   --> src/tune.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         fen = (&args[3..params]).trim();
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print_root_moves`
[INFO] [stderr]    --> src/search.rs:300:8
[INFO] [stderr]     |
[INFO] [stderr] 300 |     fn print_root_moves(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `key16`
[INFO] [stderr]   --> src/tt.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     key16: u16,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `TTEntry` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/tt.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 | #[derive(Debug, Clone, Copy)]
[INFO] [stderr]    |          ^^^^^  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `snowhead` (lib) generated 13 warnings
[INFO] [stderr] warning: unused import: `snowhead::types::score::*`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use snowhead::types::score::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `snowhead::tune`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use snowhead::tune;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `snowhead::psqt`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use snowhead::psqt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `snowhead` (lib test) generated 13 warnings (13 duplicates)
[INFO] [stderr] warning: `snowhead` (bin "snowhead" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/snowhead-cd8354fb4e9d363b)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test attacks::attack_bb::attack_bb_test::magic_attacks_match_sliding_attacks ... ok
[INFO] [stdout] test position::game::game_test::do_undo_move_gives_same_position ... ok
[INFO] [stdout] test types::square::square_test::it_works ... ok
[INFO] [stdout] test position::game::game_test::illegal_castling ... ok
[INFO] [stdout] test tt::tt_test::save_and_probe_returns_same_value ... ok
[INFO] [stdout] test movegen::movegen_test::perft4_stats ... ok
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/snowhead-cd8354fb4e9d363b` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "3314cabf2571921c67b9cb6b6d6422899bf04683a869bd1ef24ea0dcd5bcf555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3314cabf2571921c67b9cb6b6d6422899bf04683a869bd1ef24ea0dcd5bcf555", kill_on_drop: false }`
[INFO] [stdout] 3314cabf2571921c67b9cb6b6d6422899bf04683a869bd1ef24ea0dcd5bcf555