[INFO] cloning repository https://github.com/rugyoga/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/rugyoga/chess-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frugyoga%2Fchess-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frugyoga%2Fchess-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66bb5a88392c83ba96306c75124a3b39abb5835b
[INFO] documenting rugyoga/chess-rust against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frugyoga%2Fchess-rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rugyoga/chess-rust on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rugyoga/chess-rust
[INFO] finished tweaking git repo https://github.com/rugyoga/chess-rust
[INFO] tweaked toml for git repo https://github.com/rugyoga/chess-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/rugyoga/chess-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e699beae6b82d69eff894858992fe9a800dab25d30ecb5d2aa9bd16d65d99766
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e699beae6b82d69eff894858992fe9a800dab25d30ecb5d2aa9bd16d65d99766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e699beae6b82d69eff894858992fe9a800dab25d30ecb5d2aa9bd16d65d99766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e699beae6b82d69eff894858992fe9a800dab25d30ecb5d2aa9bd16d65d99766", kill_on_drop: false }`
[INFO] [stdout] e699beae6b82d69eff894858992fe9a800dab25d30ecb5d2aa9bd16d65d99766
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 73b3007307541eef7faa4b88ff1e11c779eecc19fc219130ed6d4dd7a543aab6
[INFO] running `Command { std: "docker" "start" "-a" "73b3007307541eef7faa4b88ff1e11c779eecc19fc219130ed6d4dd7a543aab6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]  Documenting chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: generic arguments must come before the first constraint
[INFO] [stdout]  --> src/pieces.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 | impl<T> Clone for Board<T: Clone, Copy> { fn clone(&self) -> Self { *self } }
[INFO] [stdout]   |                         --------  ^^^^ generic argument
[INFO] [stdout]   |                         |
[INFO] [stdout]   |                         constraint
[INFO] [stdout]   |
[INFO] [stdout] help: move the constraint after the generic argument
[INFO] [stdout]   |
[INFO] [stdout] 9 | impl<T> Clone for Board<Copy, T : Clone> { fn clone(&self) -> Self { *self } }
[INFO] [stdout]   |                        ~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: associated type bounds are unstable
[INFO] [stdout]  --> src/pieces.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | impl<T> Clone for Board<T: Clone, Copy> { fn clone(&self) -> Self { *self } }
[INFO] [stdout]   |                         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #52662 <https://github.com/rust-lang/rust/issues/52662> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `chess`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name chess src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=cfdc80dd72026054 -L dependency=/opt/rustwide/target/debug/deps --extern num=/opt/rustwide/target/debug/deps/libnum-db6c725e5dc95e83.rmeta --extern num_derive=/opt/rustwide/target/debug/deps/libnum_derive-dfbc507593de9f8d.so --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-0332a0a98538df27.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "73b3007307541eef7faa4b88ff1e11c779eecc19fc219130ed6d4dd7a543aab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73b3007307541eef7faa4b88ff1e11c779eecc19fc219130ed6d4dd7a543aab6", kill_on_drop: false }`
[INFO] [stdout] 73b3007307541eef7faa4b88ff1e11c779eecc19fc219130ed6d4dd7a543aab6