[INFO] cloning repository https://github.com/fabianvdW/ChessInRust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fabianvdW/ChessInRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FfabianvdW%2FChessInRust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FfabianvdW%2FChessInRust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2dd9ca10c37d8647ccf45f11e0e802fde6986ccb [INFO] documenting fabianvdW/ChessInRust 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%2FfabianvdW%2FChessInRust" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fabianvdW/ChessInRust 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/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-4/source/Cargo.toml [INFO] crate git repo https://github.com/fabianvdW/ChessInRust 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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tinytemplate v1.0.4 [INFO] [stderr] Downloaded criterion-plot v0.4.2 [INFO] [stderr] Downloaded oorandom v11.1.1 [INFO] [stderr] Downloaded tokio v0.2.19 [INFO] [stderr] Downloaded criterion v0.3.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] c3869a85d270f54af6339c2e4ebc65049047d54f834f232e561c1ac08242ed5f [INFO] running `Command { std: "docker" "start" "-a" "c3869a85d270f54af6339c2e4ebc65049047d54f834f232e561c1ac08242ed5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c3869a85d270f54af6339c2e4ebc65049047d54f834f232e561c1ac08242ed5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c3869a85d270f54af6339c2e4ebc65049047d54f834f232e561c1ac08242ed5f", kill_on_drop: false }` [INFO] [stdout] c3869a85d270f54af6339c2e4ebc65049047d54f834f232e561c1ac08242ed5f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 6178ff6009a3f8b777c578199e74ad6cc3dd194e02dda16d3845bed83ed08911 [INFO] running `Command { std: "docker" "start" "-a" "6178ff6009a3f8b777c578199e74ad6cc3dd194e02dda16d3845bed83ed08911", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling ryu v1.0.4 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking match_cfg v0.1.0 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Compiling rayon-core v1.7.0 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking arc-swap v0.4.6 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Checking pin-project-lite v0.1.4 [INFO] [stderr] Checking futures-core v0.3.4 [INFO] [stderr] Checking oorandom v11.1.1 [INFO] [stderr] Checking bytes v0.5.4 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking hostname v0.3.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking signal-hook-registry v1.2.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking criterion-plot v0.4.2 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Checking regex v1.3.7 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Checking plotters v0.2.12 [INFO] [stderr] Checking crossbeam-queue v0.2.1 [INFO] [stderr] Checking chrono v0.4.11 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking tokio v0.2.19 [INFO] [stderr] Checking rayon v1.3.0 [INFO] [stderr] Compiling core-sdk v0.1.0 (/opt/rustwide/workdir/core-sdk) [INFO] [stderr] Documenting core-sdk v0.1.0 (/opt/rustwide/workdir/core-sdk) [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Checking extended-sdk v0.1.0 (/opt/rustwide/workdir/extended-sdk) [INFO] [stderr] Documenting tuning v0.1.0 (/opt/rustwide/workdir/tuning) [INFO] [stderr] Checking tuning v0.1.0 (/opt/rustwide/workdir/tuning) [INFO] [stderr] Documenting uci-engine v1.16.0 (/opt/rustwide/workdir/uci-engine) [INFO] [stderr] Documenting extended-sdk v0.1.0 (/opt/rustwide/workdir/extended-sdk) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> tuning/src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(str_split_once)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `str_split_once` has been stable since 1.52.0 and no longer requires an attribute to enable [INFO] [stdout] --> tuning/src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(str_split_once)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> tuning/src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(str_split_once)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tuning` due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not document `tuning` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name tuning tuning/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=6598e94f64a10f22 -L dependency=/opt/rustwide/target/debug/deps --extern core_sdk=/opt/rustwide/target/debug/deps/libcore_sdk-6db645316c484385.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-7ac2ab76fa467918.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1) [INFO] running `Command { std: "docker" "inspect" "6178ff6009a3f8b777c578199e74ad6cc3dd194e02dda16d3845bed83ed08911", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6178ff6009a3f8b777c578199e74ad6cc3dd194e02dda16d3845bed83ed08911", kill_on_drop: false }` [INFO] [stdout] 6178ff6009a3f8b777c578199e74ad6cc3dd194e02dda16d3845bed83ed08911