[INFO] fetching crate binjs_io 0.2.1...
[INFO] documenting binjs_io-0.2.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate binjs_io 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate binjs_io 0.2.1 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 crates.io crate binjs_io 0.2.1
[INFO] finished tweaking crates.io crate binjs_io 0.2.1
[INFO] tweaked toml for crates.io crate binjs_io 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_more v0.13.0
[INFO] [stderr]   Downloaded binjs_shared v0.1.1
[INFO] [stderr]   Downloaded range-encoding v0.1.9
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b4eaf69c7afbcd1417d26f25bb0712e8c26434fd29b24fb71fa7f97cdd18abd0
[INFO] running `Command { std: "docker" "start" "-a" "b4eaf69c7afbcd1417d26f25bb0712e8c26434fd29b24fb71fa7f97cdd18abd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4eaf69c7afbcd1417d26f25bb0712e8c26434fd29b24fb71fa7f97cdd18abd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4eaf69c7afbcd1417d26f25bb0712e8c26434fd29b24fb71fa7f97cdd18abd0", kill_on_drop: false }`
[INFO] [stdout] b4eaf69c7afbcd1417d26f25bb0712e8c26434fd29b24fb71fa7f97cdd18abd0
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1b0ef2dd47e0b5dfc5793d8fa3c30ed9a2fcf7d7462b634a62beed810777f52a
[INFO] running `Command { std: "docker" "start" "-a" "1b0ef2dd47e0b5dfc5793d8fa3c30ed9a2fcf7d7462b634a62beed810777f52a", kill_on_drop: false }`
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.1
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking json v0.11.15
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]     Checking range-encoding v0.1.9
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking brotli-decompressor v2.3.1
[INFO] [stderr]     Checking binjs_shared v0.1.1
[INFO] [stderr]     Checking brotli v3.3.0
[INFO] [stderr]  Documenting binjs_io v0.2.1 (/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(box_patterns)]
[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(vec_resize_default)]
[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 `binjs_io`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name binjs_io 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 bincode=/opt/rustwide/target/debug/deps/libbincode-e6e3d5e940c1e286.rmeta --extern binjs_shared=/opt/rustwide/target/debug/deps/libbinjs_shared-90b0b4b239d6b8c8.rmeta --extern brotli=/opt/rustwide/target/debug/deps/libbrotli-1057852c1aead10d.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-d8de5d56e70a343c.rmeta --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-fefc3d1dec366eae.so --extern flate2=/opt/rustwide/target/debug/deps/libflate2-8702d03d4727069a.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-433d1b037a7098c7.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-95a9d57e67df36ac.rmeta --extern lzw=/opt/rustwide/target/debug/deps/liblzw-0d356dbada132f6f.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-98ed040c61a36189.rmeta --extern range_encoding=/opt/rustwide/target/debug/deps/librange_encoding-9b8daec1221aa473.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ec5e695d7e4b5284.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-e14ca5de376ec3cc.so --extern vec_map=/opt/rustwide/target/debug/deps/libvec_map-78fb5057a2e3f904.rmeta --extern xml=/opt/rustwide/target/debug/deps/libxml-f61627292033da59.rmeta --cap-lints=warn --crate-version 0.2.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "1b0ef2dd47e0b5dfc5793d8fa3c30ed9a2fcf7d7462b634a62beed810777f52a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b0ef2dd47e0b5dfc5793d8fa3c30ed9a2fcf7d7462b634a62beed810777f52a", kill_on_drop: false }`
[INFO] [stdout] 1b0ef2dd47e0b5dfc5793d8fa3c30ed9a2fcf7d7462b634a62beed810777f52a