[INFO] cloning repository https://github.com/Alfheimr-Chess/alfheimr-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Alfheimr-Chess/alfheimr-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlfheimr-Chess%2Falfheimr-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlfheimr-Chess%2Falfheimr-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0824c8ca8f26bbbaacbb41f03b0d5bbb4564e282
[INFO] checking Alfheimr-Chess/alfheimr-server against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlfheimr-Chess%2Falfheimr-server" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Alfheimr-Chess/alfheimr-server on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Alfheimr-Chess/alfheimr-server
[INFO] finished tweaking git repo https://github.com/Alfheimr-Chess/alfheimr-server
[INFO] tweaked toml for git repo https://github.com/Alfheimr-Chess/alfheimr-server written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Alfheimr-Chess/alfheimr-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-sink v0.3.14
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[INFO] [stderr]   Downloaded smartstring v0.2.6
[INFO] [stderr]   Downloaded rhai_codegen v0.3.5
[INFO] [stderr]   Downloaded rhai v0.20.1
[INFO] [stderr]   Downloaded utf-8 v0.7.6
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[INFO] [stderr]   Downloaded ctrlc v3.1.9
[INFO] [stderr]   Downloaded futures v0.3.14
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[INFO] [stderr]   Downloaded tokio-tungstenite v0.14.0
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[INFO] [stderr]   Downloaded tungstenite v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7282341123517e00632b9db195d4e8917bdf8fcc1dd5dd5d460bfb5de4b8068
[INFO] running `Command { std: "docker" "start" "-a" "c7282341123517e00632b9db195d4e8917bdf8fcc1dd5dd5d460bfb5de4b8068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7282341123517e00632b9db195d4e8917bdf8fcc1dd5dd5d460bfb5de4b8068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7282341123517e00632b9db195d4e8917bdf8fcc1dd5dd5d460bfb5de4b8068", kill_on_drop: false }`
[INFO] [stdout] c7282341123517e00632b9db195d4e8917bdf8fcc1dd5dd5d460bfb5de4b8068
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42b18bfd0e62acd29612db9b94742b867ece4caf7a119ba913d37a6fd10ac55e
[INFO] running `Command { std: "docker" "start" "-a" "42b18bfd0e62acd29612db9b94742b867ece4caf7a119ba913d37a6fd10ac55e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking cpufeatures v0.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.64
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[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
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[INFO] [stderr]    Compiling pest_generator v2.1.3
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[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling rhai_codegen v0.3.5
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling displaydoc v0.1.7
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking tungstenite v0.13.0
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
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[INFO] [stderr]     Checking rhai v0.20.1
[INFO] [stderr]     Checking alfheimr_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `get_checkers`
[INFO] [stdout]    --> src/logic/move_gen.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub fn get_checkers(p_color: PieceColor, dx: &usize, dy: &usize, pieces: &PieceList, board: &GameBoard) -> Vec<(usize,usize)> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game/mod.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         nboard.do_move(&mov);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game/mod.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         nboard.do_move(&mov);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.42s
[INFO] running `Command { std: "docker" "inspect" "42b18bfd0e62acd29612db9b94742b867ece4caf7a119ba913d37a6fd10ac55e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42b18bfd0e62acd29612db9b94742b867ece4caf7a119ba913d37a6fd10ac55e", kill_on_drop: false }`
[INFO] [stdout] 42b18bfd0e62acd29612db9b94742b867ece4caf7a119ba913d37a6fd10ac55e