[INFO] cloning repository https://github.com/robbagott/rob-chess-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robbagott/rob-chess-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobbagott%2Frob-chess-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobbagott%2Frob-chess-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 485b1d73c9d3e283e166ba8fd41e477794d33e0c [INFO] testing robbagott/rob-chess-rust against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobbagott%2Frob-chess-rust" "/workspace/builds/worker-93/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-93/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/robbagott/rob-chess-rust on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/robbagott/rob-chess-rust [INFO] finished tweaking git repo https://github.com/robbagott/rob-chess-rust [INFO] tweaked toml for git repo https://github.com/robbagott/rob-chess-rust written to /workspace/builds/worker-93/source/Cargo.toml [INFO] crate git repo https://github.com/robbagott/rob-chess-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 78dd08bfacfe9d43e9f826b6aaabe349b800b553b2f25df5131ff62ec2bb4b3c [INFO] running `Command { std: "docker" "start" "-a" "78dd08bfacfe9d43e9f826b6aaabe349b800b553b2f25df5131ff62ec2bb4b3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "78dd08bfacfe9d43e9f826b6aaabe349b800b553b2f25df5131ff62ec2bb4b3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78dd08bfacfe9d43e9f826b6aaabe349b800b553b2f25df5131ff62ec2bb4b3c", kill_on_drop: false }` [INFO] [stdout] 78dd08bfacfe9d43e9f826b6aaabe349b800b553b2f25df5131ff62ec2bb4b3c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 567fd1a39deab06b727d6d72e4408952fcd2e60768098f364017891e691dc2b4 [INFO] running `Command { std: "docker" "start" "-a" "567fd1a39deab06b727d6d72e4408952fcd2e60768098f364017891e691dc2b4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling regex-syntax v0.6.23 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling colored v2.0.0 [INFO] [stderr] Compiling regex v1.4.5 [INFO] [stderr] Compiling rob_chess v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `super::tree::Tree` [INFO] [stdout] --> src/game/engine.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use super::tree::Tree; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/game/engine.rs:46:65 [INFO] [stdout] | [INFO] [stdout] 46 | let eval = -calculate(&mut p, color.opp_color(), depth, -beta, -alpha, &mut child); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | | [INFO] [stdout] | expected `&mut f64`, found `f64` [INFO] [stdout] | help: consider mutably borrowing here: `&mut -beta` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/game/engine.rs:46:72 [INFO] [stdout] | [INFO] [stdout] 46 | let eval = -calculate(&mut p, color.opp_color(), depth, -beta, -alpha, &mut child); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | expected `&mut f64`, found `f64` [INFO] [stdout] | help: consider mutably borrowing here: `&mut -alpha` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0600]: cannot apply unary operator `-` to type `&mut f64` [INFO] [stdout] --> src/game/engine.rs:90:13 [INFO] [stdout] | [INFO] [stdout] 90 | -beta, [INFO] [stdout] | ^^^^^ cannot apply unary operator `-` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0600]: cannot apply unary operator `-` to type `&mut f64` [INFO] [stdout] --> src/game/engine.rs:91:13 [INFO] [stdout] | [INFO] [stdout] 91 | -alpha, [INFO] [stdout] | ^^^^^^ cannot apply unary operator `-` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/game/engine.rs:100:31 [INFO] [stdout] | [INFO] [stdout] 100 | alpha = &mut f64::max(alpha, best_so_far); [INFO] [stdout] | ^^^^^ expected `f64`, found `&mut f64` [INFO] [stdout] | [INFO] [stdout] help: consider dereferencing the borrow [INFO] [stdout] | [INFO] [stdout] 100 | alpha = &mut f64::max(*alpha, best_so_far); [INFO] [stdout] | + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0600]: cannot apply unary operator `-` to type `&mut f64` [INFO] [stdout] --> src/game/engine.rs:101:20 [INFO] [stdout] | [INFO] [stdout] 101 | if alpha > -beta { [INFO] [stdout] | ^^^^^ cannot apply unary operator `-` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0308, E0600. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rob_chess` due to 7 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "567fd1a39deab06b727d6d72e4408952fcd2e60768098f364017891e691dc2b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "567fd1a39deab06b727d6d72e4408952fcd2e60768098f364017891e691dc2b4", kill_on_drop: false }` [INFO] [stdout] 567fd1a39deab06b727d6d72e4408952fcd2e60768098f364017891e691dc2b4