[INFO] cloning repository https://github.com/skeskinen/sigmar-bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skeskinen/sigmar-bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskeskinen%2Fsigmar-bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskeskinen%2Fsigmar-bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07a56a980fc52ca6f4462798918eb816c8fab5c6
[INFO] documenting skeskinen/sigmar-bot 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%2Fskeskinen%2Fsigmar-bot" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/skeskinen/sigmar-bot 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/skeskinen/sigmar-bot
[INFO] finished tweaking git repo https://github.com/skeskinen/sigmar-bot
[INFO] tweaked toml for git repo https://github.com/skeskinen/sigmar-bot written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/skeskinen/sigmar-bot 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 either v1.3.0
[INFO] [stderr]   Downloaded itertools v0.7.2
[INFO] [stderr]   Downloaded dxgi-win v0.2.1
[INFO] [stderr]   Downloaded scrap v0.3.2
[INFO] [stderr]   Downloaded dxgcap v0.0.8
[INFO] [stderr]   Downloaded bitflags v1.0.0
[INFO] [stderr]   Downloaded d3d11-win v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] ad185114ee78fa26d77fe578ab71883fe42938bc8e94cde50e63671f6281633a
[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" "ad185114ee78fa26d77fe578ab71883fe42938bc8e94cde50e63671f6281633a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad185114ee78fa26d77fe578ab71883fe42938bc8e94cde50e63671f6281633a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad185114ee78fa26d77fe578ab71883fe42938bc8e94cde50e63671f6281633a", kill_on_drop: false }`
[INFO] [stdout] ad185114ee78fa26d77fe578ab71883fe42938bc8e94cde50e63671f6281633a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 56e113d5824f0967bbefcfd43be0ee96c7ca02057cb49fb2fd34738935b62cd2
[INFO] running `Command { std: "docker" "start" "-a" "56e113d5824f0967bbefcfd43be0ee96c7ca02057cb49fb2fd34738935b62cd2", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.32
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking either v1.3.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]     Checking futures v0.1.16
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]    Compiling scrap v0.3.2
[INFO] [stderr]     Checking bitflags v1.0.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.8
[INFO] [stderr]     Checking block v0.1.6
[INFO] [stderr]    Compiling user32-sys v0.1.2
[INFO] [stderr]     Checking dxgi-win v0.2.1
[INFO] [stderr]     Checking inflate v0.3.3
[INFO] [stderr]     Checking deflate v0.7.17
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking d3d11-win v0.2.1
[INFO] [stderr]     Checking coco v0.1.1
[INFO] [stderr]     Checking itertools v0.7.2
[INFO] [stderr]     Checking dxgcap v0.0.8
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking num-bigint v0.1.40
[INFO] [stderr]     Checking num-complex v0.1.40
[INFO] [stderr]     Checking num-rational v0.1.39
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking image v0.17.0
[INFO] [stderr]  Documenting sigmar_bot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `sigmar_bot`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name sigmar_bot src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern dxgcap=/opt/rustwide/target/debug/deps/libdxgcap-b80b79974fca5dde.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-fff11b0b6b0ed68f.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-16f256c1020d67d5.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-a0d0ae52cabbb700.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-1d2cb56c265edec9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2beafcfbdf1ff594.rmeta --extern scrap=/opt/rustwide/target/debug/deps/libscrap-35068d802b0e6084.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "56e113d5824f0967bbefcfd43be0ee96c7ca02057cb49fb2fd34738935b62cd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56e113d5824f0967bbefcfd43be0ee96c7ca02057cb49fb2fd34738935b62cd2", kill_on_drop: false }`
[INFO] [stdout] 56e113d5824f0967bbefcfd43be0ee96c7ca02057cb49fb2fd34738935b62cd2