[INFO] fetching crate tokio-resol-vbus 0.1.0...
[INFO] checking tokio-resol-vbus-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate tokio-resol-vbus 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate tokio-resol-vbus 0.1.0
[INFO] finished tweaking crates.io crate tokio-resol-vbus 0.1.0
[INFO] tweaked toml for crates.io crate tokio-resol-vbus 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-resol-vbus 0.1.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 105 packages to latest compatible versions
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.31)
[INFO] [stderr]       Adding mio-serial v3.3.0 (available: v3.3.1)
[INFO] [stderr]       Adding tokio v0.1.22 (available: v1.45.1)
[INFO] [stderr]       Adding tokio-serial v3.3.0 (available: v5.4.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-serial v3.3.0
[INFO] [stderr]   Downloaded mio-serial v3.3.0
[INFO] [stderr]   Downloaded resol-vbus v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74d470ca677523663c9d9d16630ba33b4a42fc5efd58a2a21fd25f603715939d
[INFO] running `Command { std: "docker" "start" "-a" "74d470ca677523663c9d9d16630ba33b4a42fc5efd58a2a21fd25f603715939d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74d470ca677523663c9d9d16630ba33b4a42fc5efd58a2a21fd25f603715939d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d470ca677523663c9d9d16630ba33b4a42fc5efd58a2a21fd25f603715939d", kill_on_drop: false }`
[INFO] [stdout] 74d470ca677523663c9d9d16630ba33b4a42fc5efd58a2a21fd25f603715939d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTFLAGS=--cap-lints=forbid" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da0426d3a16a1b0881cb033614b18294838f7f3d741b599666058ccfe7672bff
[INFO] running `Command { std: "docker" "start" "-a" "da0426d3a16a1b0881cb033614b18294838f7f3d741b599666058ccfe7672bff", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking slab v0.4.10
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking resol-vbus v0.2.1
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-resol-vbus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]     Checking mio-serial v3.3.0
[INFO] [stderr]     Checking tokio-serial v3.3.0
[INFO] [stdout] error: missing documentation for a method
[INFO] [stdout]    --> src/live_data_stream.rs:590:5
[INFO] [stdout]     |
[INFO] [stdout] 590 |     pub fn writer_ref(&self) -> &W {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(missing_docs)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-resol-vbus` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "da0426d3a16a1b0881cb033614b18294838f7f3d741b599666058ccfe7672bff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da0426d3a16a1b0881cb033614b18294838f7f3d741b599666058ccfe7672bff", kill_on_drop: false }`
[INFO] [stdout] da0426d3a16a1b0881cb033614b18294838f7f3d741b599666058ccfe7672bff