[INFO] fetching crate pollock 0.3.2...
[INFO] documenting pollock-0.3.2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate pollock 0.3.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate pollock 0.3.2 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 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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] d3a9c2f03d88851a1db17eecc3b073bb2cffb262d8846c2256ae9757e180b81e
[INFO] running `Command { std: "docker" "start" "-a" "d3a9c2f03d88851a1db17eecc3b073bb2cffb262d8846c2256ae9757e180b81e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3a9c2f03d88851a1db17eecc3b073bb2cffb262d8846c2256ae9757e180b81e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3a9c2f03d88851a1db17eecc3b073bb2cffb262d8846c2256ae9757e180b81e", kill_on_drop: false }`
[INFO] [stdout] d3a9c2f03d88851a1db17eecc3b073bb2cffb262d8846c2256ae9757e180b81e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] b8c049fce10ccc34dceb4ef3c0ce785bc33f13035a788fbd28f9aa29fd744f60
[INFO] running `Command { std: "docker" "start" "-a" "b8c049fce10ccc34dceb4ef3c0ce785bc33f13035a788fbd28f9aa29fd744f60", kill_on_drop: false }`
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[INFO] [stderr]    Compiling num-iter v0.1.43
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[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking smallvec v0.6.14
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[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling x11-dl v2.19.1
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[INFO] [stderr]     Checking gif-dispose v2.4.2
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[INFO] [stderr]    Compiling rand_jitter v0.1.4
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[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
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[INFO] [stderr]     Checking nalgebra v0.16.14
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
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[INFO] [stderr]     Checking crossbeam 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[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] [stderr] error: could not document `pollock`
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[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,artifacts,future-incompat --document-private-items -C metadata=753ef6f19b7ebb0c -L dependency=/opt/rustwide/target/debug/deps --extern alga=/opt/rustwide/target/debug/deps/libalga-a663c93dd18b1745.rmeta --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-a218e7bda56e386b.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-2f72a47cd7ad3f1e.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-5eaa67ceb9d9bb54.rmeta --extern gfx=/opt/rustwide/target/debug/deps/libgfx-8cfdc347e6f8111b.rmeta --extern gfx_window_glutin=/opt/rustwide/target/debug/deps/libgfx_window_glutin-ccdda4cc41e3fcf7.rmeta --extern gifski=/opt/rustwide/target/debug/deps/libgifski-f482c49766b78a20.rmeta --extern glutin=/opt/rustwide/target/debug/deps/libglutin-126cdb6ebdd575c9.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-6719d5fa7c6ce075.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-237e07c83799a2ab.rmeta --extern nalgebra=/opt/rustwide/target/debug/deps/libnalgebra-987fa3f1039244f3.rmeta --extern palette=/opt/rustwide/target/debug/deps/libpalette-0fe7896805afca17.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-8a08afcab3e69def.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-361aefd8ea33a964.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-83f91e0782093c72.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-e465a967752ca58a.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-14514afe1b15d91e.rmeta --cap-lints=warn --crate-version 0.3.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "b8c049fce10ccc34dceb4ef3c0ce785bc33f13035a788fbd28f9aa29fd744f60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8c049fce10ccc34dceb4ef3c0ce785bc33f13035a788fbd28f9aa29fd744f60", kill_on_drop: false }`
[INFO] [stdout] b8c049fce10ccc34dceb4ef3c0ce785bc33f13035a788fbd28f9aa29fd744f60