[INFO] fetching crate kafka 0.10.0...
[INFO] testing kafka-0.10.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate kafka 0.10.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate kafka 0.10.0
[INFO] finished tweaking crates.io crate kafka 0.10.0
[INFO] tweaked toml for crates.io crate kafka 0.10.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kafka 0.10.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate kafka 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crc v3.0.1
[INFO] [stderr]   Downloaded getopts v0.2.21
[INFO] [stderr]   Downloaded ref_slice v1.2.1
[INFO] [stderr]   Downloaded crc-catalog v2.2.0
[INFO] [stderr]   Downloaded snap v1.1.0
[INFO] [stderr]   Downloaded smallvec v1.11.1
[INFO] [stderr]   Downloaded time v0.3.29
[INFO] [stderr]   Downloaded openssl v0.10.57
[INFO] [stderr]   Downloaded openssl-sys v0.9.93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82811b43a8675894bb385b2589e5fb244512390523247cd08aaf6e4c5b2812e5
[INFO] running `Command { std: "docker" "start" "-a" "82811b43a8675894bb385b2589e5fb244512390523247cd08aaf6e4c5b2812e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82811b43a8675894bb385b2589e5fb244512390523247cd08aaf6e4c5b2812e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82811b43a8675894bb385b2589e5fb244512390523247cd08aaf6e4c5b2812e5", kill_on_drop: false }`
[INFO] [stdout] 82811b43a8675894bb385b2589e5fb244512390523247cd08aaf6e4c5b2812e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d03e9608f5e2920b74c47335bf8d584acb1a0ef0e64c7e541b2371e9bb2e1a29
[INFO] running `Command { std: "docker" "start" "-a" "d03e9608f5e2920b74c47335bf8d584acb1a0ef0e64c7e541b2371e9bb2e1a29", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling thiserror v1.0.48
[INFO] [stderr]    Compiling openssl v0.10.57
[INFO] [stderr]    Compiling snap v1.1.0
[INFO] [stderr]    Compiling crc-catalog v2.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling kafka v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling ref_slice v1.2.1
[INFO] [stderr]    Compiling crc v3.0.1
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling flate2 v1.0.27
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling openssl-sys v0.9.93
[INFO] [stderr]    Compiling twox-hash v1.6.3
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.48
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/consumer/mod.rs:255:25
[INFO] [stdout]     |
[INFO] [stdout] 255 |                     let mut fetch_state = self
[INFO] [stdout]     |                         ----^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/protocol/mod.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 130 |         client_id: &'a str,
[INFO] [stdout]     |                     -- the lifetime is named here
[INFO] [stdout] 131 |     ) -> HeaderRequest<'_> {
[INFO] [stdout]     |                        ^^ the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 131 -     ) -> HeaderRequest<'_> {
[INFO] [stdout] 131 +     ) -> HeaderRequest<'a> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/protocol/fetch.rs:212:36
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn topics<'a>(&'a self) -> &[Topic<'a>] {
[INFO] [stdout]     |                        --          ^^^^^^^^--^^
[INFO] [stdout]     |                        |           |       |
[INFO] [stdout]     |                        |           |       the same lifetime is named here
[INFO] [stdout]     |                        |           the same lifetime is elided here
[INFO] [stdout]     |                        the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn topics<'a>(&'a self) -> &'a [Topic<'a>] {
[INFO] [stdout]     |                                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.12s
[INFO] running `Command { std: "docker" "inspect" "d03e9608f5e2920b74c47335bf8d584acb1a0ef0e64c7e541b2371e9bb2e1a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d03e9608f5e2920b74c47335bf8d584acb1a0ef0e64c7e541b2371e9bb2e1a29", kill_on_drop: false }`
[INFO] [stdout] d03e9608f5e2920b74c47335bf8d584acb1a0ef0e64c7e541b2371e9bb2e1a29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23539b4d7bb628ecc2cbb88b203d13f81c53a443c2c350ff997321d247d1d66a
[INFO] running `Command { std: "docker" "start" "-a" "23539b4d7bb628ecc2cbb88b203d13f81c53a443c2c350ff997321d247d1d66a", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling deranged v0.3.8
[INFO] [stderr]    Compiling smallvec v1.11.1
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling kafka v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling time v0.3.29
[INFO] [stderr]    Compiling tracing-subscriber v0.3.17
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/consumer/mod.rs:255:25
[INFO] [stdout]     |
[INFO] [stdout] 255 |                     let mut fetch_state = self
[INFO] [stdout]     |                         ----^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/protocol/mod.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 130 |         client_id: &'a str,
[INFO] [stdout]     |                     -- the lifetime is named here
[INFO] [stdout] 131 |     ) -> HeaderRequest<'_> {
[INFO] [stdout]     |                        ^^ the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 131 -     ) -> HeaderRequest<'_> {
[INFO] [stdout] 131 +     ) -> HeaderRequest<'a> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/protocol/fetch.rs:212:36
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn topics<'a>(&'a self) -> &[Topic<'a>] {
[INFO] [stdout]     |                        --          ^^^^^^^^--^^
[INFO] [stdout]     |                        |           |       |
[INFO] [stdout]     |                        |           |       the same lifetime is named here
[INFO] [stdout]     |                        |           the same lifetime is elided here
[INFO] [stdout]     |                        the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn topics<'a>(&'a self) -> &'a [Topic<'a>] {
[INFO] [stdout]     |                                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `timefmt` is never read
[INFO] [stdout]    --> examples/offset-monitor.rs:161:5
[INFO] [stdout]     |
[INFO] [stdout] 158 | struct Printer<W> {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 161 |     timefmt: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/consumer/mod.rs:255:25
[INFO] [stdout]     |
[INFO] [stdout] 255 |                     let mut fetch_state = self
[INFO] [stdout]     |                         ----^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/protocol/mod.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 130 |         client_id: &'a str,
[INFO] [stdout]     |                     -- the lifetime is named here
[INFO] [stdout] 131 |     ) -> HeaderRequest<'_> {
[INFO] [stdout]     |                        ^^ the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 131 -     ) -> HeaderRequest<'_> {
[INFO] [stdout] 131 +     ) -> HeaderRequest<'a> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/protocol/fetch.rs:212:36
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn topics<'a>(&'a self) -> &[Topic<'a>] {
[INFO] [stdout]     |                        --          ^^^^^^^^--^^
[INFO] [stdout]     |                        |           |       |
[INFO] [stdout]     |                        |           |       the same lifetime is named here
[INFO] [stdout]     |                        |           the same lifetime is elided here
[INFO] [stdout]     |                        the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn topics<'a>(&'a self) -> &'a [Topic<'a>] {
[INFO] [stdout]     |                                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.44s
[INFO] running `Command { std: "docker" "inspect" "23539b4d7bb628ecc2cbb88b203d13f81c53a443c2c350ff997321d247d1d66a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23539b4d7bb628ecc2cbb88b203d13f81c53a443c2c350ff997321d247d1d66a", kill_on_drop: false }`
[INFO] [stdout] 23539b4d7bb628ecc2cbb88b203d13f81c53a443c2c350ff997321d247d1d66a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f02fd7b1ebf72a30c10f7e0785c7e5176772c1c3250405a1db8a19bbee6abb14
[INFO] running `Command { std: "docker" "start" "-a" "f02fd7b1ebf72a30c10f7e0785c7e5176772c1c3250405a1db8a19bbee6abb14", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/consumer/mod.rs:255:25
[INFO] [stderr]     |
[INFO] [stderr] 255 |                     let mut fetch_state = self
[INFO] [stderr]     |                         ----^^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/protocol/mod.rs:131:24
[INFO] [stderr]     |
[INFO] [stderr] 130 |         client_id: &'a str,
[INFO] [stderr]     |                     -- the lifetime is named here
[INFO] [stderr] 131 |     ) -> HeaderRequest<'_> {
[INFO] [stderr]     |                        ^^ the same lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 131 -     ) -> HeaderRequest<'_> {
[INFO] [stderr] 131 +     ) -> HeaderRequest<'a> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/protocol/fetch.rs:212:36
[INFO] [stderr]     |
[INFO] [stderr] 212 |     pub fn topics<'a>(&'a self) -> &[Topic<'a>] {
[INFO] [stderr]     |                        --          ^^^^^^^^--^^
[INFO] [stderr]     |                        |           |       |
[INFO] [stderr]     |                        |           |       the same lifetime is named here
[INFO] [stderr]     |                        |           the same lifetime is elided here
[INFO] [stderr]     |                        the lifetime is named here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 212 |     pub fn topics<'a>(&'a self) -> &'a [Topic<'a>] {
[INFO] [stderr]     |                                     ++
[INFO] [stderr] 
[INFO] [stderr] warning: `kafka` (lib) generated 3 warnings (run `cargo fix --lib -p kafka` to apply 3 suggestions)
[INFO] [stderr] warning: field `timefmt` is never read
[INFO] [stderr]    --> examples/offset-monitor.rs:161:5
[INFO] [stderr]     |
[INFO] [stderr] 158 | struct Printer<W> {
[INFO] [stderr]     |        ------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 161 |     timefmt: String,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kafka` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: `kafka` (example "offset-monitor") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kafka-6f639ff9ea00f114)
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test codecs::codec_32 ... ok
[INFO] [stdout] test client::state::tests::test_loading_metadata ... ok
[INFO] [stdout] test codecs::codec_as_strings ... ok
[INFO] [stdout] test codecs::codec_i8 ... ok
[INFO] [stdout] test codecs::codec_i16 ... ok
[INFO] [stdout] test codecs::codec_i64 ... ok
[INFO] [stdout] test codecs::codec_string ... ok
[INFO] [stdout] test codecs::codec_vec_u8 ... ok
[INFO] [stdout] test compression::snappy::test_validate_stream ... ok
[INFO] [stdout] test compression::snappy::tests::test_compress ... ok
[INFO] [stdout] test compression::gzip::test_uncompress ... ok
[INFO] [stdout] test compression::snappy::tests::test_uncompress ... ok
[INFO] [stdout] test compression::snappy::tests::test_uncompress_invalid_input ... ok
[INFO] [stdout] test compression::snappy::tests::test_snappy_reader_read ... ok
[INFO] [stdout] test compression::snappy::tests::test_snappy_reader_read_to_end ... ok
[INFO] [stdout] test protocol::fetch::tests::test_from_slice_snappy_k0821 ... ok
[INFO] [stdout] test protocol::test_kafka_code_from_protocol ... ok
[INFO] [stdout] test protocol::test_to_millis_i32 ... ok
[INFO] [stdout] test protocol::fetch::tests::test_from_slice_nocompression_k0821 ... ok
[INFO] [stdout] test protocol::fetch::tests::test_from_slice_snappy_k0822 ... ok
[INFO] [stdout] test protocol::zreader::test_read_i16 ... ok
[INFO] [stdout] test producer::default_partitioner_tests::default_partitioner_with_custom_hasher_default ... ok
[INFO] [stdout] test codecs::test_string_too_long ... ok
[INFO] [stdout] test producer::default_partitioner_tests::test_key_partitioning ... ok
[INFO] [stdout] test protocol::zreader::test_read_str ... ok
[INFO] [stdout] test protocol::zreader::test_read_i32 ... ok
[INFO] [stdout] test protocol::zreader::test_mutability_lifetimes ... ok
[INFO] [stdout] test protocol::zreader::test_read ... ok
[INFO] [stdout] test protocol::fetch::tests::test_crc_validation ... ok
[INFO] [stdout] test protocol::fetch::tests::test_from_slice_gzip_k0821 ... ok
[INFO] [stdout] test protocol::zreader::test_read_i64 ... ok
[INFO] [stderr]      Running tests/test_kafka.rs (/opt/rustwide/target/debug/deps/test_kafka-73ceacddfe61b039)
[INFO] [stdout] test protocol::zreader::test_read_i8 ... ok
[INFO] [stdout] test compression::gzip::test_uncompress_panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests kafka
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/consumer/mod.rs - consumer (line 11) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::load_metadata_all (line 733) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::commit_offsets (line 1125) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::commit_offset (line 1179) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::fetch_topic_offsets (line 926) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::topics (line 708) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::new_secure (line 417) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::produce_messages (line 1090) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::fetch_messages (line 989) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::fetch_group_offsets (line 1202) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::new (line 383) - compile ... ok
[INFO] [stdout] test src/producer.rs - producer (line 15) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::fetch_group_topic_offset (line 1251) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::fetch_offsets (line 820) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::set_compression (line 508) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::set_fetch_min_bytes (line 557) - compile ... ok
[INFO] [stdout] test src/client/mod.rs - client::KafkaClient::load_metadata (line 764) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f02fd7b1ebf72a30c10f7e0785c7e5176772c1c3250405a1db8a19bbee6abb14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f02fd7b1ebf72a30c10f7e0785c7e5176772c1c3250405a1db8a19bbee6abb14", kill_on_drop: false }`
[INFO] [stdout] f02fd7b1ebf72a30c10f7e0785c7e5176772c1c3250405a1db8a19bbee6abb14
