[INFO] cloning repository https://github.com/felipecsl/rusty-chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/felipecsl/rusty-chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelipecsl%2Frusty-chess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelipecsl%2Frusty-chess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d848b92158d08299f7c0a948c7bdc19fc64588f8
[INFO] documenting felipecsl/rusty-chess against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelipecsl%2Frusty-chess" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/felipecsl/rusty-chess on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/felipecsl/rusty-chess
[INFO] finished tweaking git repo https://github.com/felipecsl/rusty-chess
[INFO] tweaked toml for git repo https://github.com/felipecsl/rusty-chess written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/felipecsl/rusty-chess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.6.0
[INFO] [stderr]   Downloaded console_error_panic_hook v0.1.5
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.33
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.33
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.33
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.2.29
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.2.29
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.33
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.3.6
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.33
[INFO] [stderr]   Downloaded js-sys v0.3.10
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.27
[INFO] [stderr]   Downloaded web-sys v0.3.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 703ccfcfde53658e8a6969712a63693cc3762346cdfb6b861ccf657b3cab07ab
[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" "703ccfcfde53658e8a6969712a63693cc3762346cdfb6b861ccf657b3cab07ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "703ccfcfde53658e8a6969712a63693cc3762346cdfb6b861ccf657b3cab07ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "703ccfcfde53658e8a6969712a63693cc3762346cdfb6b861ccf657b3cab07ab", kill_on_drop: false }`
[INFO] [stdout] 703ccfcfde53658e8a6969712a63693cc3762346cdfb6b861ccf657b3cab07ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b764c4d01ea00b88074781fad5cfb8326dcb0469989c6bdbab757f6a1b12af9a
[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" "b764c4d01ea00b88074781fad5cfb8326dcb0469989c6bdbab757f6a1b12af9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.33
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.33
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling termcolor v1.0.4
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling weedle v0.8.0
[INFO] [stderr]    Compiling env_logger v0.6.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.33
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.33
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.27
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.33
[INFO] [stderr]     Checking js-sys v0.3.10
[INFO] [stderr]     Checking console_error_panic_hook v0.1.5
[INFO] [stderr]    Compiling web-sys v0.3.10
[INFO] [stderr]  Documenting chess-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "b764c4d01ea00b88074781fad5cfb8326dcb0469989c6bdbab757f6a1b12af9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b764c4d01ea00b88074781fad5cfb8326dcb0469989c6bdbab757f6a1b12af9a", kill_on_drop: false }`
[INFO] [stdout] b764c4d01ea00b88074781fad5cfb8326dcb0469989c6bdbab757f6a1b12af9a