[INFO] cloning repository https://github.com/GregBowyer/opentelemetry-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GregBowyer/opentelemetry-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregBowyer%2Fopentelemetry-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregBowyer%2Fopentelemetry-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 42f5abb96a4a3fc716d354f241870a87b9f1e5aa
[INFO] documenting GregBowyer/opentelemetry-rs against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregBowyer%2Fopentelemetry-rs" "/workspace/builds/worker-60/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-60/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GregBowyer/opentelemetry-rs on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GregBowyer/opentelemetry-rs
[INFO] finished tweaking git repo https://github.com/GregBowyer/opentelemetry-rs
[INFO] tweaked toml for git repo https://github.com/GregBowyer/opentelemetry-rs written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] crate git repo https://github.com/GregBowyer/opentelemetry-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded bit-set v0.5.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.7
[INFO] [stderr]   Downloaded rusty-fork v0.2.2
[INFO] [stderr]   Downloaded proptest v0.9.4
[INFO] [stderr]   Downloaded protobuf v2.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a07569f832ac95f99309498bc31636840a79319b471fc54d9976f904e652822
[INFO] running `Command { std: "docker" "start" "-a" "2a07569f832ac95f99309498bc31636840a79319b471fc54d9976f904e652822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a07569f832ac95f99309498bc31636840a79319b471fc54d9976f904e652822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a07569f832ac95f99309498bc31636840a79319b471fc54d9976f904e652822", kill_on_drop: false }`
[INFO] [stdout] 2a07569f832ac95f99309498bc31636840a79319b471fc54d9976f904e652822
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 376a48108aeb718f4954522e8fbc530ef8d79e3dfb5a735e9b58e4a54efe3d07
[INFO] running `Command { std: "docker" "start" "-a" "376a48108aeb718f4954522e8fbc530ef8d79e3dfb5a735e9b58e4a54efe3d07", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling protobuf v2.6.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking opentelemetry_api v0.1.0 (/opt/rustwide/workdir/opentelemetry-api)
[INFO] [stderr]  Documenting opentelemetry_api v0.1.0 (/opt/rustwide/workdir/opentelemetry-api)
[INFO] [stdout] warning: unused import: `std::borrow::Cow`
[INFO] [stdout]  --> opentelemetry-api/src/trace/tracer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Cow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: patterns aren't allowed in functions without bodies
[INFO] [stdout]  --> opentelemetry-api/src/context/mod.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn close(mut self);
[INFO] [stdout]   |              ^^^^^^^^ help: remove `mut` from the parameter: `self`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[deny(patterns_in_fns_without_body)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `opentelemetry_api` due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]   --> opentelemetry-api/src/metric/meter.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |   /// ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 24 | | ///
[INFO] [stdout] 25 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 23 | /// ```text
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]   --> opentelemetry-api/src/metric/meter.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |   /// ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 46 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 45 | /// ```text
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]   --> opentelemetry-api/src/metric/meter.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |   /// ```
[INFO] [stdout]    |  _____^
[INFO] [stdout] 79 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 78 | /// ```text
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "376a48108aeb718f4954522e8fbc530ef8d79e3dfb5a735e9b58e4a54efe3d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "376a48108aeb718f4954522e8fbc530ef8d79e3dfb5a735e9b58e4a54efe3d07", kill_on_drop: false }`
[INFO] [stdout] 376a48108aeb718f4954522e8fbc530ef8d79e3dfb5a735e9b58e4a54efe3d07
