[INFO] cloning repository https://github.com/Vurich/pollock
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Vurich/pollock" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVurich%2Fpollock", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVurich%2Fpollock'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 639dbdc97b035ec9b1d1471436685735041e64f5
[INFO] documenting Vurich/pollock 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%2FVurich%2Fpollock" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Vurich/pollock 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/Vurich/pollock
[INFO] finished tweaking git repo https://github.com/Vurich/pollock
[INFO] tweaked toml for git repo https://github.com/Vurich/pollock written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Vurich/pollock 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] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gif-dispose v2.4.1
[INFO] [stderr]   Downloaded imgref v1.7.0
[INFO] [stderr]   Downloaded imagequant-sys v2.12.7
[INFO] [stderr]   Downloaded imagequant v2.12.5
[INFO] [stderr]   Downloaded lodepng v2.7.3
[INFO] [stderr]   Downloaded gifski v0.8.7
[INFO] [stderr]   Downloaded rgb v0.8.25
[INFO] [stderr]   Downloaded wild v2.0.4
[INFO] [stderr]   Downloaded resize v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 425c73bf8f8ab3e8c91991916e05c38b817ac93d259fe32dbd5d7235547bde0f
[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" "425c73bf8f8ab3e8c91991916e05c38b817ac93d259fe32dbd5d7235547bde0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "425c73bf8f8ab3e8c91991916e05c38b817ac93d259fe32dbd5d7235547bde0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "425c73bf8f8ab3e8c91991916e05c38b817ac93d259fe32dbd5d7235547bde0f", kill_on_drop: false }`
[INFO] [stdout] 425c73bf8f8ab3e8c91991916e05c38b817ac93d259fe32dbd5d7235547bde0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 75120e9cadbbcf28b7ef9cf477913084d9b10910c30a17d891e48fab79cc28fd
[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" "75120e9cadbbcf28b7ef9cf477913084d9b10910c30a17d891e48fab79cc28fd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]     Checking bytemuck v1.4.0
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]     Checking imgref v1.7.0
[INFO] [stderr]     Checking resize v0.3.1
[INFO] [stderr]     Checking natord v1.0.9
[INFO] [stderr]     Checking wild v2.0.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling imagequant-sys v2.12.7
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking rgb v0.8.25
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]     Checking pbr v1.0.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking crossbeam-deque v0.5.2
[INFO] [stderr]     Checking gfx_core v0.8.3
[INFO] [stderr]     Checking gif-dispose v2.4.1
[INFO] [stderr]     Checking lodepng v2.7.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking wayland-sys v0.20.12
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]    Compiling wayland-client v0.20.12
[INFO] [stderr]    Compiling wayland-protocols v0.20.12
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking imagequant v2.12.5
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking wayland-commons v0.20.12
[INFO] [stderr]     Checking gifski v0.8.7
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling glutin v0.18.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking alga v0.7.2
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking smithay-client-toolkit v0.3.0
[INFO] [stderr]     Checking nalgebra v0.16.14
[INFO] [stderr]     Checking gfx_device_gl v0.15.5
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking winit v0.17.2
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]     Checking gfx_window_glutin v0.26.0
[INFO] [stderr]  Documenting pollock v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(external_doc)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `pollock`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name pollock src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern alga=/opt/rustwide/target/debug/deps/libalga-f6f1e44d1ae78206.rmeta --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-d842d8db2f640b7e.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-a4cb361fa38043bc.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-0ff73feb7e2c43f7.rmeta --extern gfx=/opt/rustwide/target/debug/deps/libgfx-ea1f49af00f7d2de.rmeta --extern gfx_window_glutin=/opt/rustwide/target/debug/deps/libgfx_window_glutin-5b7dde447517f1fc.rmeta --extern gifski=/opt/rustwide/target/debug/deps/libgifski-4a5fe0feda672e02.rmeta --extern glutin=/opt/rustwide/target/debug/deps/libglutin-dc2b097a680c457e.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-016e7cceb33e2dfa.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-433d1b037a7098c7.rmeta --extern nalgebra=/opt/rustwide/target/debug/deps/libnalgebra-c2ec5e7ba56eabcf.rmeta --extern palette=/opt/rustwide/target/debug/deps/libpalette-9bcd3956cb0a488f.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-9f351ba7a70ce9e5.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d6f4c1be166c5a7c.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-e14ca5de376ec3cc.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-4c209d7bbcc88746.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-850e2636105c6b48.rmeta --cap-lints=warn --crate-version 0.3.2` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "75120e9cadbbcf28b7ef9cf477913084d9b10910c30a17d891e48fab79cc28fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75120e9cadbbcf28b7ef9cf477913084d9b10910c30a17d891e48fab79cc28fd", kill_on_drop: false }`
[INFO] [stdout] 75120e9cadbbcf28b7ef9cf477913084d9b10910c30a17d891e48fab79cc28fd