[INFO] cloning repository https://github.com/moreheadm/xanadu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/moreheadm/xanadu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoreheadm%2Fxanadu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoreheadm%2Fxanadu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 887ca3e7ba4990a821cd3451499ce8f2d9f463c0
[INFO] checking moreheadm/xanadu against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoreheadm%2Fxanadu" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/moreheadm/xanadu on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/moreheadm/xanadu
[INFO] finished tweaking git repo https://github.com/moreheadm/xanadu
[INFO] tweaked toml for git repo https://github.com/moreheadm/xanadu written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/moreheadm/xanadu 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded btoi v0.4.0
[INFO] [stderr]   Downloaded shakmaty v0.16.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae868ebef6bc78b732d3b6bc4e31a7019e64356d6426b88417b0a3f1b78780e1
[INFO] running `Command { std: "docker" "start" "-a" "ae868ebef6bc78b732d3b6bc4e31a7019e64356d6426b88417b0a3f1b78780e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae868ebef6bc78b732d3b6bc4e31a7019e64356d6426b88417b0a3f1b78780e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae868ebef6bc78b732d3b6bc4e31a7019e64356d6426b88417b0a3f1b78780e1", kill_on_drop: false }`
[INFO] [stdout] ae868ebef6bc78b732d3b6bc4e31a7019e64356d6426b88417b0a3f1b78780e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 010308e3a411278db3129844a3d5f6df1530b2e96e5d7f3b8e4966cf36a16d75
[INFO] running `Command { std: "docker" "start" "-a" "010308e3a411278db3129844a3d5f6df1530b2e96e5d7f3b8e4966cf36a16d75", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling shakmaty v0.16.3
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking btoi v0.4.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking xanadu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Material`, `Piece`
[INFO] [stdout]  --> src/engine.rs:1:53
[INFO] [stdout]   |
[INFO] [stdout] 1 | use shakmaty::{Chess, Move, Position, Setup, Color, Material, MaterialSide,
[INFO] [stdout]   |                                                     ^^^^^^^^
[INFO] [stdout] 2 |         Outcome, Piece, Role, Board};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Material`, `Piece`
[INFO] [stdout]  --> src/engine.rs:1:53
[INFO] [stdout]   |
[INFO] [stdout] 1 | use shakmaty::{Chess, Move, Position, Setup, Color, Material, MaterialSide,
[INFO] [stdout]   |                                                     ^^^^^^^^
[INFO] [stdout] 2 |         Outcome, Piece, Role, Board};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/runner.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `eval`
[INFO] [stdout]    --> src/engine.rs:166:23
[INFO] [stdout]     |
[INFO] [stdout] 166 |             let (mov, eval) = match self.position.turn() {
[INFO] [stdout]     |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_eval`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `eval`
[INFO] [stdout]    --> src/engine.rs:166:23
[INFO] [stdout]     |
[INFO] [stdout] 166 |             let (mov, eval) = match self.position.turn() {
[INFO] [stdout]     |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_eval`
[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/engine.rs:182:46
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn searchmax(&mut self, position: Chess, mut upper: i32, mut lower: i32,
[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/engine.rs:224:62
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fn searchmin(&mut self, position: Chess, mut upper: i32, mut lower: i32,
[INFO] [stdout]     |                                                              ----^^^^^
[INFO] [stdout]     |                                                              |
[INFO] [stdout]     |                                                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/engine.rs:182:46
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn searchmax(&mut self, position: Chess, mut upper: i32, mut lower: i32,
[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/engine.rs:224:62
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fn searchmin(&mut self, position: Chess, mut upper: i32, mut lower: i32,
[INFO] [stdout]     |                                                              ----^^^^^
[INFO] [stdout]     |                                                              |
[INFO] [stdout]     |                                                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:117:29
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn debug_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:125:33
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn setoption_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:129:32
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn register_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:133:34
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn ucinewgame_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fen_start`
[INFO] [stdout]    --> src/runner.rs:143:18
[INFO] [stdout]     |
[INFO] [stdout] 143 |             Some(fen_start) => {
[INFO] [stdout]     |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fen_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:117:29
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn debug_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:125:33
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn setoption_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:129:32
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn register_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:133:34
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn ucinewgame_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fen_start`
[INFO] [stdout]    --> src/runner.rs:143:18
[INFO] [stdout]     |
[INFO] [stdout] 143 |             Some(fen_start) => {
[INFO] [stdout]     |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fen_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:206:28
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn stop_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:215:33
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn ponderhit_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `legals`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let legals = pos.legals();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_legals`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `random_search` is never used
[INFO] [stdout]    --> src/engine.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | impl Engine {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 151 |     fn random_search(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:206:28
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn stop_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:215:33
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn ponderhit_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `legals`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let legals = pos.legals();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_legals`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `random_search` is never used
[INFO] [stdout]    --> src/engine.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | impl Engine {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 151 |     fn random_search(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "010308e3a411278db3129844a3d5f6df1530b2e96e5d7f3b8e4966cf36a16d75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "010308e3a411278db3129844a3d5f6df1530b2e96e5d7f3b8e4966cf36a16d75", kill_on_drop: false }`
[INFO] [stdout] 010308e3a411278db3129844a3d5f6df1530b2e96e5d7f3b8e4966cf36a16d75
[INFO] checking moreheadm/xanadu against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoreheadm%2Fxanadu" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/moreheadm/xanadu on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/moreheadm/xanadu
[INFO] finished tweaking git repo https://github.com/moreheadm/xanadu
[INFO] tweaked toml for git repo https://github.com/moreheadm/xanadu written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/moreheadm/xanadu 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ba1eb87fa292eb8482bca0df362fd703e6e24c7aaf3279852264d8e16c04c2f
[INFO] running `Command { std: "docker" "start" "-a" "0ba1eb87fa292eb8482bca0df362fd703e6e24c7aaf3279852264d8e16c04c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ba1eb87fa292eb8482bca0df362fd703e6e24c7aaf3279852264d8e16c04c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ba1eb87fa292eb8482bca0df362fd703e6e24c7aaf3279852264d8e16c04c2f", kill_on_drop: false }`
[INFO] [stdout] 0ba1eb87fa292eb8482bca0df362fd703e6e24c7aaf3279852264d8e16c04c2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e69f8a07c371e2c220b1d1ace150a2e7288d5295484c9d2be088712bc1c97d76
[INFO] running `Command { std: "docker" "start" "-a" "e69f8a07c371e2c220b1d1ace150a2e7288d5295484c9d2be088712bc1c97d76", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling shakmaty v0.16.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking btoi v0.4.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking xanadu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Material`, `Piece`
[INFO] [stdout]  --> src/engine.rs:1:53
[INFO] [stdout]   |
[INFO] [stdout] 1 | use shakmaty::{Chess, Move, Position, Setup, Color, Material, MaterialSide,
[INFO] [stdout]   |                                                     ^^^^^^^^
[INFO] [stdout] 2 |         Outcome, Piece, Role, Board};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Material`, `Piece`
[INFO] [stdout]  --> src/engine.rs:1:53
[INFO] [stdout]   |
[INFO] [stdout] 1 | use shakmaty::{Chess, Move, Position, Setup, Color, Material, MaterialSide,
[INFO] [stdout]   |                                                     ^^^^^^^^
[INFO] [stdout] 2 |         Outcome, Piece, Role, Board};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/runner.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/engine.rs:176:21
[INFO] [stdout]     |
[INFO] [stdout] 176 |                     panic!();
[INFO] [stdout]     |                     ^^^^^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/engine.rs:176:21
[INFO] [stdout]     |
[INFO] [stdout] 176 |                     panic!();
[INFO] [stdout]     |                     ^^^^^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/engine.rs:182:46
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn searchmax(&mut self, position: Chess, mut upper: i32, mut lower: i32,
[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/engine.rs:224:62
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fn searchmin(&mut self, position: Chess, mut upper: i32, mut lower: i32,
[INFO] [stdout]     |                                                              ----^^^^^
[INFO] [stdout]     |                                                              |
[INFO] [stdout]     |                                                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/engine.rs:182:46
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn searchmax(&mut self, position: Chess, mut upper: i32, mut lower: i32,
[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/engine.rs:224:62
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fn searchmin(&mut self, position: Chess, mut upper: i32, mut lower: i32,
[INFO] [stdout]     |                                                              ----^^^^^
[INFO] [stdout]     |                                                              |
[INFO] [stdout]     |                                                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:117:29
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn debug_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:125:33
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn setoption_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:129:32
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn register_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:133:34
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn ucinewgame_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fen_start`
[INFO] [stdout]    --> src/runner.rs:143:18
[INFO] [stdout]     |
[INFO] [stdout] 143 |             Some(fen_start) => {
[INFO] [stdout]     |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fen_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:206:28
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn stop_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:215:33
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn ponderhit_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:117:29
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn debug_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `legals`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let legals = pos.legals();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_legals`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:125:33
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn setoption_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:129:32
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn register_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:133:34
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn ucinewgame_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fen_start`
[INFO] [stdout]    --> src/runner.rs:143:18
[INFO] [stdout]     |
[INFO] [stdout] 143 |             Some(fen_start) => {
[INFO] [stdout]     |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fen_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:206:28
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn stop_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]    --> src/runner.rs:215:33
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn ponderhit_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stdout]     |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `legals`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let legals = pos.legals();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_legals`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xanadu` (bin "xanadu") due to 2 previous errors; 11 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `xanadu` (bin "xanadu" test) due to 2 previous errors; 12 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e69f8a07c371e2c220b1d1ace150a2e7288d5295484c9d2be088712bc1c97d76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e69f8a07c371e2c220b1d1ace150a2e7288d5295484c9d2be088712bc1c97d76", kill_on_drop: false }`
[INFO] [stdout] e69f8a07c371e2c220b1d1ace150a2e7288d5295484c9d2be088712bc1c97d76