[INFO] fetching crate pollock 0.3.2...
[INFO] documenting pollock-0.3.2 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate pollock 0.3.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate pollock 0.3.2 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pollock 0.3.2
[INFO] finished tweaking crates.io crate pollock 0.3.2
[INFO] tweaked toml for crates.io crate pollock 0.3.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44da59f59e3b2760695ded9837485e3f95691afc3e7b5f3a1cccdb474250dafb
[INFO] running `Command { std: "docker" "start" "-a" "44da59f59e3b2760695ded9837485e3f95691afc3e7b5f3a1cccdb474250dafb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44da59f59e3b2760695ded9837485e3f95691afc3e7b5f3a1cccdb474250dafb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44da59f59e3b2760695ded9837485e3f95691afc3e7b5f3a1cccdb474250dafb", kill_on_drop: false }`
[INFO] [stdout] 44da59f59e3b2760695ded9837485e3f95691afc3e7b5f3a1cccdb474250dafb
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 631e6117d121d90be210a6c889aff343f557b2bd2b83fd3e817a89015271f857
[INFO] running `Command { std: "docker" "start" "-a" "631e6117d121d90be210a6c889aff343f557b2bd2b83fd3e817a89015271f857", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking imgref v1.9.1
[INFO] [stderr]     Checking natord v1.0.9
[INFO] [stderr]     Checking wild v2.0.4
[INFO] [stderr]     Checking resize v0.3.1
[INFO] [stderr]     Checking rgb v0.8.27
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling imagequant-sys v2.13.1
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking pbr v1.0.4
[INFO] [stderr]     Checking error-chain v0.12.4
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking wayland-sys v0.20.12
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking gfx_core v0.8.3
[INFO] [stderr]     Checking wayland-commons v0.20.12
[INFO] [stderr]     Checking lodepng v2.7.3
[INFO] [stderr]     Checking gif-dispose v2.4.2
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking imagequant v2.13.0
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]    Compiling wayland-client v0.20.12
[INFO] [stderr]    Compiling wayland-protocols v0.20.12
[INFO] [stderr]     Checking gifski v0.8.7
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling glutin v0.18.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking alga v0.7.2
[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 rand v0.5.6
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking nalgebra v0.16.14
[INFO] [stderr]     Checking smithay-client-toolkit v0.3.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]     Checking winit v0.17.2
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.5
[INFO] [stderr]     Checking gfx_window_glutin v0.26.0
[INFO] [stderr]  Documenting pollock v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(external_doc)]
[INFO] [stdout]   |            ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable 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 stable 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 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an 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-52215ed15866ec60.rmeta --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-3c4691b38c8d3023.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-a64a3ee8c3c3e816.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-335ca1a37265ba44.rmeta --extern gfx=/opt/rustwide/target/debug/deps/libgfx-c106c4cbf5633982.rmeta --extern gfx_window_glutin=/opt/rustwide/target/debug/deps/libgfx_window_glutin-ddfd13a1ebfaba6d.rmeta --extern gifski=/opt/rustwide/target/debug/deps/libgifski-21aa4e8e4f1e8085.rmeta --extern glutin=/opt/rustwide/target/debug/deps/libglutin-e65834079f4a8c29.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-d202fa014ab523a1.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-a52087cf878c0c78.rmeta --extern nalgebra=/opt/rustwide/target/debug/deps/libnalgebra-473f6acfb5c4e203.rmeta --extern palette=/opt/rustwide/target/debug/deps/libpalette-401ea4e638c1ecfd.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-9b0ed1336218c121.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-714e34f8c10a4abf.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-05e319b971c8ec6f.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-0302bf8a54ea3425.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-d3ed83bd07bad38a.rmeta --cap-lints=warn --crate-version 0.3.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "631e6117d121d90be210a6c889aff343f557b2bd2b83fd3e817a89015271f857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "631e6117d121d90be210a6c889aff343f557b2bd2b83fd3e817a89015271f857", kill_on_drop: false }`
[INFO] [stdout] 631e6117d121d90be210a6c889aff343f557b2bd2b83fd3e817a89015271f857
