[INFO] updating cached repository https://github.com/fabianvdW/ChessInRust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/fabianvdW/ChessInRust
[INFO] [stderr]    097543d..a3225fa  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a3225fafeb67803d2be6acf826f0bbd4f2efe946
[INFO] checking fabianvdW/ChessInRust against master#446e5e57b667c841ba3ebb4b41b44fb98bd3af4b for pr-65294
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FfabianvdW%2FChessInRust" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fabianvdW/ChessInRust on toolchain 446e5e57b667c841ba3ebb4b41b44fb98bd3af4b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/fabianvdW/ChessInRust
[INFO] finished tweaking git repo https://github.com/fabianvdW/ChessInRust
[INFO] tweaked toml for git repo https://github.com/fabianvdW/ChessInRust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/fabianvdW/ChessInRust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cda7102e75a0a4be61845cd7253bf1c80eaad738f98b5d6d146ea88365e31d0d
[INFO] running `"docker" "start" "-a" "cda7102e75a0a4be61845cd7253bf1c80eaad738f98b5d6d146ea88365e31d0d"`
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-process v0.2.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking FabChess v1.12.8 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/search/quiescence.rs:507:27
[INFO] [stderr]     |
[INFO] [stderr] 507 |                     from: 4usize,
[INFO] [stderr]     |                           ^^^^^^ expected u8, found usize
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/search/quiescence.rs:508:25
[INFO] [stderr]     |
[INFO] [stderr] 508 |                     to: 36usize,
[INFO] [stderr]     |                         ^^^^^^^ expected u8, found usize
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/search/quiescence.rs:521:27
[INFO] [stderr]     |
[INFO] [stderr] 521 |                     from: 4usize,
[INFO] [stderr]     |                           ^^^^^^ expected u8, found usize
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/search/quiescence.rs:522:25
[INFO] [stderr]     |
[INFO] [stderr] 522 |                     to: 36usize,
[INFO] [stderr]     |                         ^^^^^^^ expected u8, found usize
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alpha`
[INFO] [stderr]    --> src/evaluation/mod.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 |     alpha: i16,
[INFO] [stderr]     |     ^^^^^ help: consider prefixing with an underscore: `_alpha`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `beta`
[INFO] [stderr]    --> src/evaluation/mod.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     beta: i16,
[INFO] [stderr]     |     ^^^^ help: consider prefixing with an underscore: `_beta`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `FabChess`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "cda7102e75a0a4be61845cd7253bf1c80eaad738f98b5d6d146ea88365e31d0d"`
[INFO] running `"docker" "rm" "-f" "cda7102e75a0a4be61845cd7253bf1c80eaad738f98b5d6d146ea88365e31d0d"`
[INFO] [stdout] cda7102e75a0a4be61845cd7253bf1c80eaad738f98b5d6d146ea88365e31d0d