[INFO] fetching crate dope 0.1.0...
[INFO] documenting dope-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate dope 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate dope 0.1.0 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 dope 0.1.0
[INFO] finished tweaking crates.io crate dope 0.1.0
[INFO] tweaked toml for crates.io crate dope 0.1.0 written to /workspace/builds/worker-0/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] e8434676e558f921c21c41cf2eb4cc9b56d83e9d5c3ff372c677eef897a2a890
[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" "e8434676e558f921c21c41cf2eb4cc9b56d83e9d5c3ff372c677eef897a2a890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8434676e558f921c21c41cf2eb4cc9b56d83e9d5c3ff372c677eef897a2a890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8434676e558f921c21c41cf2eb4cc9b56d83e9d5c3ff372c677eef897a2a890", kill_on_drop: false }`
[INFO] [stdout] e8434676e558f921c21c41cf2eb4cc9b56d83e9d5c3ff372c677eef897a2a890
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] fc8978c17885becda59ff13a545ec409ca49aef7265d3ca206c9c97cd6f16392
[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" "fc8978c17885becda59ff13a545ec409ca49aef7265d3ca206c9c97cd6f16392", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]  Documenting dope v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `kevent` in crate `libc`
[INFO] [stdout]    --> src/executor/reactor/sys/kqueue.rs:15:23
[INFO] [stdout]     |
[INFO] [stdout] 15  |       events: Vec<libc::kevent>,
[INFO] [stdout]     |                         ^^^^^^ help: a struct with a similar name exists: `servent`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.76/src/unix/mod.rs:43:1
[INFO] [stdout]     |
[INFO] [stdout] 43  | / s! {
[INFO] [stdout] 44  | |     pub struct group {
[INFO] [stdout] 45  | |         pub gr_name: *mut ::c_char,
[INFO] [stdout] 46  | |         pub gr_passwd: *mut ::c_char,
[INFO] [stdout] ...   |
[INFO] [stdout] 195 | |     }
[INFO] [stdout] 196 | | }
[INFO] [stdout]     | |_- similarly named struct `servent` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[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(try_trait, weak_counts)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `dope`.
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0554.
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name dope 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 chrono=/opt/rustwide/target/debug/deps/libchrono-cb1ea1286d2c9141.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-56dd397d7044e9d2.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-6c038468601621d5.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-b01e5f49cd1b74e8.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-8b25aaf2e71705fc.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-e0e0e35ef9a5003f.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "fc8978c17885becda59ff13a545ec409ca49aef7265d3ca206c9c97cd6f16392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc8978c17885becda59ff13a545ec409ca49aef7265d3ca206c9c97cd6f16392", kill_on_drop: false }`
[INFO] [stdout] fc8978c17885becda59ff13a545ec409ca49aef7265d3ca206c9c97cd6f16392