[INFO] fetching crate kafka-replicator 0.5.0...
[INFO] documenting kafka-replicator-0.5.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate kafka-replicator 0.5.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate kafka-replicator 0.5.0 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 kafka-replicator 0.5.0
[INFO] finished tweaking crates.io crate kafka-replicator 0.5.0
[INFO] tweaked toml for crates.io crate kafka-replicator 0.5.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate kafka-replicator 0.5.0 already has a lockfile, it will not be regenerated
[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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 3b22e2b584fa334fb11f21531afa5031ec4f4fc52641a6bd0cb15fde9fb255c1
[INFO] running `Command { std: "docker" "start" "-a" "3b22e2b584fa334fb11f21531afa5031ec4f4fc52641a6bd0cb15fde9fb255c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b22e2b584fa334fb11f21531afa5031ec4f4fc52641a6bd0cb15fde9fb255c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b22e2b584fa334fb11f21531afa5031ec4f4fc52641a6bd0cb15fde9fb255c1", kill_on_drop: false }`
[INFO] [stdout] 3b22e2b584fa334fb11f21531afa5031ec4f4fc52641a6bd0cb15fde9fb255c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 92c7314cd96d3d3842a3f49aef6364a8556bc1937e49b1b9d40b4baf95274282
[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" "92c7314cd96d3d3842a3f49aef6364a8556bc1937e49b1b9d40b4baf95274282", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling cc v1.0.57
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[INFO] [stderr]    Compiling rdkafka-sys v1.3.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
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[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling actix-web-codegen v0.2.2
[INFO] [stderr]    Compiling serde v1.0.114
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[INFO] [stderr]     Checking kafka-replicator v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting kafka-replicator v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `AtomicUsize`, `Ordering`, `VarError`, `collections::HashMap`, `self`, `time::Duration`
[INFO] [stdout]   --> src/utils.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  |     collections::HashMap,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 10 |     env::{self, VarError},
[INFO] [stdout]    |           ^^^^  ^^^^^^^^
[INFO] [stdout] 11 |     sync::{
[INFO] [stdout] 12 |         atomic::{AtomicUsize, Ordering},
[INFO] [stdout]    |                  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 13 |         Arc,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 14 |     },
[INFO] [stdout] 15 |     time::Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json`
[INFO] [stdout]   --> src/utils.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `toml`
[INFO] [stdout]   --> src/utils.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use toml;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `errors`
[INFO] [stdout]   --> src/utils.rs:22:21
[INFO] [stdout]    |
[INFO] [stdout] 22 | use super::{config, errors};
[INFO] [stdout]    |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process`
[INFO] [stdout]  --> src/config.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{convert::From, fmt, process, thread};
[INFO] [stdout]   |                               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/config.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     error::Error,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `delay_for`
[INFO] [stdout]   --> src/config.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tokio::time::{delay_for};
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BorrowedHeaders`, `DefaultConsumerContext`, `MessageStream`, `OwnedMessage`, `ToBytes`, `groups::GroupList`, `util::Timeout`
[INFO] [stdout]   --> src/config.rs:19:27
[INFO] [stdout]    |
[INFO] [stdout] 19 |         stream_consumer::{MessageStream, StreamConsumer},
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 20 |         Consumer, ConsumerContext, DefaultConsumerContext,
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |         BorrowedHeaders, BorrowedMessage, Headers, Message, OwnedHeaders, OwnedMessage, ToBytes,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^                                                   ^^^^^^^^^^^^  ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     util::Timeout,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 29 |     TopicPartitionList, topic_partition_list::TopicPartitionListElem, groups::GroupList, metadata::Metadata,
[INFO] [stdout]    |                                                                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `future`
[INFO] [stdout]   --> src/config.rs:32:15
[INFO] [stdout]    |
[INFO] [stdout] 32 | use futures::{future, stream::StreamExt};
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `VarError`, `self`
[INFO] [stdout]   --> src/config.rs:35:11
[INFO] [stdout]    |
[INFO] [stdout] 35 |     env::{self, VarError},
[INFO] [stdout]    |           ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/errors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IntCounter`, `IntGauge`
[INFO] [stdout]  --> src/metrics.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use prometheus::{self, Encoder, IntCounter, IntGauge, IntGaugeVec, TextEncoder, Registry, Opts, GaugeVec, IntCounterVec};
[INFO] [stdout]   |                                 ^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> src/metrics.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{env, io, collections::HashMap, sync::{Arc, Mutex}, marker::Send};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `get`
[INFO] [stdout]  --> src/metrics.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | use actix_web::{get, web, App, HttpServer, Responder, middleware};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/config.rs:267:12
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn add(mut self, other: DeltaStorage<u64>) -> Self::Output {
[INFO] [stdout]     |            ----^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 43s
[INFO] running `Command { std: "docker" "inspect" "92c7314cd96d3d3842a3f49aef6364a8556bc1937e49b1b9d40b4baf95274282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92c7314cd96d3d3842a3f49aef6364a8556bc1937e49b1b9d40b4baf95274282", kill_on_drop: false }`
[INFO] [stdout] 92c7314cd96d3d3842a3f49aef6364a8556bc1937e49b1b9d40b4baf95274282