[INFO] fetching crate rdkafka 0.36.2...
[INFO] checking rdkafka-0.36.2 against master#899eb03926be23f2e5d2ffcaa1d6f9ac40af7f13 for pr-127827-3
[INFO] extracting crate rdkafka 0.36.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate rdkafka 0.36.2 on toolchain 899eb03926be23f2e5d2ffcaa1d6f9ac40af7f13
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+899eb03926be23f2e5d2ffcaa1d6f9ac40af7f13" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rdkafka 0.36.2
[INFO] finished tweaking crates.io crate rdkafka 0.36.2
[INFO] tweaked toml for crates.io crate rdkafka 0.36.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate rdkafka 0.36.2 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" "+899eb03926be23f2e5d2ffcaa1d6f9ac40af7f13" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+899eb03926be23f2e5d2ffcaa1d6f9ac40af7f13" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "d13badea5fd5a65861350302e5cd91e8b61d1b0923d9bdd331d55e8a0d4c8bfa", kill_on_drop: false }`
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[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/mocking.rs:42:11
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Owned(Client<C>),
[INFO] [stdout]    |     ----- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Owned(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/mocking.rs:43:14
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Borrowed(&'c Client<C>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Borrowed(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `ptr` and `is_null` are never used
[INFO] [stdout]    --> src/util.rs:257:8
[INFO] [stdout]     |
[INFO] [stdout] 254 | pub(crate) trait WrappedCPointer {
[INFO] [stdout]     |                  --------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 257 |     fn ptr(&self) -> *mut Self::Target;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 258 |
[INFO] [stdout] 259 |     fn is_null(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OnDrop` is never constructed
[INFO] [stdout]    --> src/util.rs:343:19
[INFO] [stdout]     |
[INFO] [stdout] 343 | pub(crate) struct OnDrop<F>(pub F)
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/mocking.rs:42:11
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Owned(Client<C>),
[INFO] [stdout]    |     ----- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Owned(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/mocking.rs:43:14
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Borrowed(&'c Client<C>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Borrowed(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `ptr` and `is_null` are never used
[INFO] [stdout]    --> src/util.rs:257:8
[INFO] [stdout]     |
[INFO] [stdout] 254 | pub(crate) trait WrappedCPointer {
[INFO] [stdout]     |                  --------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 257 |     fn ptr(&self) -> *mut Self::Target;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 258 |
[INFO] [stdout] 259 |     fn is_null(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OnDrop` is never constructed
[INFO] [stdout]    --> src/util.rs:343:19
[INFO] [stdout]     |
[INFO] [stdout] 343 | pub(crate) struct OnDrop<F>(pub F)
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> tests/test_admin.rs:37:45
[INFO] [stdout]    |
[INFO] [stdout] 37 |         .set("group.id", consumer_group_name.clone())
[INFO] [stdout]    |                                             ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.26s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "b2b91fdca4d94ea3b17a8f726dcf31568ea11c3d0727a6d03a6829dd41edcea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2b91fdca4d94ea3b17a8f726dcf31568ea11c3d0727a6d03a6829dd41edcea9", kill_on_drop: false }`
[INFO] [stdout] b2b91fdca4d94ea3b17a8f726dcf31568ea11c3d0727a6d03a6829dd41edcea9
[INFO] checking rdkafka-0.36.2 against try#71e0d7ccb3d54cfc766c826c50c8d523223fcc5c for pr-127827-3
[INFO] extracting crate rdkafka 0.36.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate rdkafka 0.36.2 on toolchain 71e0d7ccb3d54cfc766c826c50c8d523223fcc5c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+71e0d7ccb3d54cfc766c826c50c8d523223fcc5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rdkafka 0.36.2
[INFO] finished tweaking crates.io crate rdkafka 0.36.2
[INFO] tweaked toml for crates.io crate rdkafka 0.36.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate rdkafka 0.36.2 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" "+71e0d7ccb3d54cfc766c826c50c8d523223fcc5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+71e0d7ccb3d54cfc766c826c50c8d523223fcc5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b597ed9565357dfb66a49fd22c0747d2bf102f72c25af0ec873040646707f1e9
[INFO] running `Command { std: "docker" "start" "-a" "b597ed9565357dfb66a49fd22c0747d2bf102f72c25af0ec873040646707f1e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b597ed9565357dfb66a49fd22c0747d2bf102f72c25af0ec873040646707f1e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b597ed9565357dfb66a49fd22c0747d2bf102f72c25af0ec873040646707f1e9", kill_on_drop: false }`
[INFO] [stdout] b597ed9565357dfb66a49fd22c0747d2bf102f72c25af0ec873040646707f1e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+71e0d7ccb3d54cfc766c826c50c8d523223fcc5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fb60bd31570ee6e9b1dda4314059cdc01882311c0df9a9b9961fc5f05f2bb9a
[INFO] running `Command { std: "docker" "start" "-a" "4fb60bd31570ee6e9b1dda4314059cdc01882311c0df9a9b9961fc5f05f2bb9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling cc v1.0.53
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]    Compiling rdkafka-sys v4.7.0+2.3.0
[INFO] [stderr]    Compiling lexical-core v0.6.8
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking rand_os v0.1.3
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[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking instant v0.1.3
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking smol v1.2.5
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking backoff v0.1.6
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking hdrhistogram v7.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking tokio v1.18.5
[INFO] [stderr]     Checking futures-executor v0.3.19
[INFO] [stderr]     Checking futures v0.3.19
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling num_enum_derive v0.5.0
[INFO] [stderr]     Checking num_enum v0.5.0
[INFO] [stderr]     Checking rdkafka v0.36.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/mocking.rs:42:11
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Owned(Client<C>),
[INFO] [stdout]    |     ----- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Owned(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/mocking.rs:43:14
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Borrowed(&'c Client<C>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Borrowed(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `ptr` and `is_null` are never used
[INFO] [stdout]    --> src/util.rs:257:8
[INFO] [stdout]     |
[INFO] [stdout] 254 | pub(crate) trait WrappedCPointer {
[INFO] [stdout]     |                  --------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 257 |     fn ptr(&self) -> *mut Self::Target;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 258 |
[INFO] [stdout] 259 |     fn is_null(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OnDrop` is never constructed
[INFO] [stdout]    --> src/util.rs:343:19
[INFO] [stdout]     |
[INFO] [stdout] 343 | pub(crate) struct OnDrop<F>(pub F)
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/mocking.rs:42:11
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Owned(Client<C>),
[INFO] [stdout]    |     ----- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Owned(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/mocking.rs:43:14
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Borrowed(&'c Client<C>),
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Borrowed(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `ptr` and `is_null` are never used
[INFO] [stdout]    --> src/util.rs:257:8
[INFO] [stdout]     |
[INFO] [stdout] 254 | pub(crate) trait WrappedCPointer {
[INFO] [stdout]     |                  --------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 257 |     fn ptr(&self) -> *mut Self::Target;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 258 |
[INFO] [stdout] 259 |     fn is_null(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OnDrop` is never constructed
[INFO] [stdout]    --> src/util.rs:343:19
[INFO] [stdout]     |
[INFO] [stdout] 343 | pub(crate) struct OnDrop<F>(pub F)
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> tests/test_admin.rs:37:45
[INFO] [stdout]    |
[INFO] [stdout] 37 |         .set("group.id", consumer_group_name.clone())
[INFO] [stdout]    |                                             ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.53s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "4fb60bd31570ee6e9b1dda4314059cdc01882311c0df9a9b9961fc5f05f2bb9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fb60bd31570ee6e9b1dda4314059cdc01882311c0df9a9b9961fc5f05f2bb9a", kill_on_drop: false }`
[INFO] [stdout] 4fb60bd31570ee6e9b1dda4314059cdc01882311c0df9a9b9961fc5f05f2bb9a