[INFO] fetching crate dynamixel2 0.1.2...
[INFO] documenting dynamixel2-0.1.2 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate dynamixel2 0.1.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate dynamixel2 0.1.2 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dynamixel2 0.1.2
[INFO] finished tweaking crates.io crate dynamixel2 0.1.2
[INFO] tweaked toml for crates.io crate dynamixel2 0.1.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate dynamixel2 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1a7c321efd200cbc277f4f296737f74192d2b83fd7c6d1f0a3902cc3c6f573c
[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" "e1a7c321efd200cbc277f4f296737f74192d2b83fd7c6d1f0a3902cc3c6f573c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1a7c321efd200cbc277f4f296737f74192d2b83fd7c6d1f0a3902cc3c6f573c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1a7c321efd200cbc277f4f296737f74192d2b83fd7c6d1f0a3902cc3c6f573c", kill_on_drop: false }`
[INFO] [stdout] e1a7c321efd200cbc277f4f296737f74192d2b83fd7c6d1f0a3902cc3c6f573c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3aa55b9af78e1f6dc724ab1a26e4f31ffea36227fba11b4052e8dea1b627ddb
[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" "f3aa55b9af78e1f6dc724ab1a26e4f31ffea36227fba11b4052e8dea1b627ddb", kill_on_drop: false }`
[INFO] [stderr]  Documenting dynamixel2 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[x]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | //! * [x] Ping
[INFO] [stdout]    |        ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[x]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | //! * [x] Read
[INFO] [stdout]    |        ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[x]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | //! * [x] Write
[INFO] [stdout]    |        ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[x]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | //! * [x] Reboot
[INFO] [stdout]    |        ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[x]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | //! * [x] Write instruction messages.
[INFO] [stdout]    |        ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[x]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | //! * [x] Read response (status) messages.
[INFO] [stdout]    |        ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[x]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | //! * [x] Bit-stuffing and de-stuffing of messages.
[INFO] [stdout]    |        ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[x]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | //! * [x] Checksum calculation and verification.
[INFO] [stdout]    |        ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[x]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | //! * [x] Optional logging of all instructions and responses.
[INFO] [stdout]    |        ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[x]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | //! * [x] Utility function to perform unicast instructions.
[INFO] [stdout]    |        ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[x]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | //! * [x] Utility function to scan a bus for motors.
[INFO] [stdout]    |        ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "f3aa55b9af78e1f6dc724ab1a26e4f31ffea36227fba11b4052e8dea1b627ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3aa55b9af78e1f6dc724ab1a26e4f31ffea36227fba11b4052e8dea1b627ddb", kill_on_drop: false }`
[INFO] [stdout] f3aa55b9af78e1f6dc724ab1a26e4f31ffea36227fba11b4052e8dea1b627ddb