[INFO] fetching crate binjs_io 0.2.1...
[INFO] documenting binjs_io-0.2.1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate binjs_io 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate binjs_io 0.2.1 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.46.0" "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] 10f9269650c3db287c997da0924f345bcbf9dde89062b5517587a22deb7e55bd
[INFO] running `Command { std: "docker" "start" "-a" "10f9269650c3db287c997da0924f345bcbf9dde89062b5517587a22deb7e55bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10f9269650c3db287c997da0924f345bcbf9dde89062b5517587a22deb7e55bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10f9269650c3db287c997da0924f345bcbf9dde89062b5517587a22deb7e55bd", kill_on_drop: false }`
[INFO] [stdout] 10f9269650c3db287c997da0924f345bcbf9dde89062b5517587a22deb7e55bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.46.0" "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] 5d13cffeb4171a195f781d118831189d5e0a9956a5ec4fa8657d89691c0e51b4
[INFO] running `Command { std: "docker" "start" "-a" "5d13cffeb4171a195f781d118831189d5e0a9956a5ec4fa8657d89691c0e51b4", 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 syn v0.15.44
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.1
[INFO] [stderr]     Checking json v0.11.15
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking range-encoding v0.1.9
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[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]    Compiling derive_more v0.13.0
[INFO] [stderr]  Documenting binjs_io v0.2.1 (/opt/rustwide/workdir)
[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(box_patterns)]
[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(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-e3f65e822bed0bb8.rmeta --extern binjs_shared=/opt/rustwide/target/debug/deps/libbinjs_shared-bacb654cf0859fea.rmeta --extern brotli=/opt/rustwide/target/debug/deps/libbrotli-2030e2265a57964f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-5e80f06216331e5d.rmeta --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-b634b460f709bcd5.so --extern flate2=/opt/rustwide/target/debug/deps/libflate2-1a9b6a5895a46993.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-224050d4cfaf9b24.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-958bf2a074a4960f.rmeta --extern lzw=/opt/rustwide/target/debug/deps/liblzw-e2fb7020da27860d.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-9b356e0eb33fe2d1.rmeta --extern range_encoding=/opt/rustwide/target/debug/deps/librange_encoding-b81a3c6ae000b97d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-5429dd6d097468fb.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-9657277a275bd2e8.so --extern vec_map=/opt/rustwide/target/debug/deps/libvec_map-0ff7216f5c3da147.rmeta --extern xml=/opt/rustwide/target/debug/deps/libxml-e27939de9eae0286.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "5d13cffeb4171a195f781d118831189d5e0a9956a5ec4fa8657d89691c0e51b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d13cffeb4171a195f781d118831189d5e0a9956a5ec4fa8657d89691c0e51b4", kill_on_drop: false }`
[INFO] [stdout] 5d13cffeb4171a195f781d118831189d5e0a9956a5ec4fa8657d89691c0e51b4