[INFO] fetching crate cdrs 4.0.0-beta.1...
[INFO] checking cdrs-4.0.0-beta.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate cdrs 4.0.0-beta.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate cdrs 4.0.0-beta.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cdrs 4.0.0-beta.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cdrs 4.0.0-beta.1
[INFO] tweaked toml for crates.io crate cdrs 4.0.0-beta.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate cdrs 4.0.0-beta.1 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8-ranges v1.0.4
[INFO] [stderr]   Downloaded byteorder v0.5.3
[INFO] [stderr]   Downloaded autocfg v0.1.5
[INFO] [stderr]   Downloaded vcpkg v0.2.7
[INFO] [stderr]   Downloaded scheduled-thread-pool v0.2.2
[INFO] [stderr]   Downloaded r2d2 v0.8.9
[INFO] [stderr]   Downloaded lz4-compress v0.1.0
[INFO] [stderr]   Downloaded maplit v1.0.1
[INFO] [stderr]   Downloaded openssl-sys v0.9.49
[INFO] [stderr]   Downloaded pkg-config v0.3.15
[INFO] [stderr]   Downloaded bumpalo v3.5.0
[INFO] [stderr]   Downloaded openssl v0.10.24
[INFO] [stderr]   Downloaded lock_api v0.3.1
[INFO] [stderr]   Downloaded libc v0.2.84
[INFO] [stderr]   Downloaded smallvec v0.6.10
[INFO] [stderr]   Downloaded standback v0.2.14
[INFO] [stderr]   Downloaded snap v0.2.5
[INFO] [stderr]   Downloaded const_fn v0.4.5
[INFO] [stderr]   Downloaded time v0.2.25
[INFO] [stderr]   Downloaded proc-macro2 v0.1.10
[INFO] [stderr]   Downloaded cdrs_helpers_derive v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e64282131c665f15bdd8576a2f787a230eb61753976bb5c2f8ae26b5b262b5d9
[INFO] running `Command { std: "docker" "start" "-a" "e64282131c665f15bdd8576a2f787a230eb61753976bb5c2f8ae26b5b262b5d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e64282131c665f15bdd8576a2f787a230eb61753976bb5c2f8ae26b5b262b5d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e64282131c665f15bdd8576a2f787a230eb61753976bb5c2f8ae26b5b262b5d9", kill_on_drop: false }`
[INFO] [stdout] e64282131c665f15bdd8576a2f787a230eb61753976bb5c2f8ae26b5b262b5d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55c61b8ebbecd7be8590528325c75285794eca16ce143d823711cc18a683a4d7
[INFO] running `Command { std: "docker" "start" "-a" "55c61b8ebbecd7be8590528325c75285794eca16ce143d823711cc18a683a4d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling standback v0.2.14
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking lz4-compress v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.1.10
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]    Compiling cdrs_helpers_derive v0.1.0
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking cdrs v4.0.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/cluster/mod.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/cluster/generic_connection_pool.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/cluster/pager.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/cluster/session.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/cluster/session.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_auth_response.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_batch.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_execute.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_options.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_prepare.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_query.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/frame/frame_ready.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_register.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_startup.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/frame/parser.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Compression` is imported redundantly
[INFO] [stdout]  --> src/frame/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::*;
[INFO] [stdout]   |     -------- the item `Compression` is already imported here
[INFO] [stdout] 7 | use crate::compression::Compression;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `error` is imported redundantly
[INFO] [stdout]  --> src/frame/parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::*;
[INFO] [stdout]   |     -------- the item `error` is already imported here
[INFO] [stdout] 7 | use crate::compression::Compression;
[INFO] [stdout] 8 | use crate::error;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ResponseBody` is imported redundantly
[INFO] [stdout]  --> src/frame/parser.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::*;
[INFO] [stdout]   |     -------- the item `ResponseBody` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 9 | use crate::frame::frame_response::ResponseBody;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]   --> src/frame/parser.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use super::*;
[INFO] [stdout]    |     -------- the item `FromCursor` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 10 | use crate::frame::FromCursor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/load_balancing/random.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/query/batch_executor.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/query/exec_executor.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/query/prepare_executor.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/query/query_executor.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/query/query_params_builder.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     /// Sets new flags.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/query/query_params_builder.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     /// Sets new with_names parameter value.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/query/query_params_builder.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     /// Sets new serial_consistency value.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/query/query_params_builder.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     /// Sets new timestamp value.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `io` is imported redundantly
[INFO] [stdout]  --> src/types/data_serialization_types.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 7 | use super::*;
[INFO] [stdout]   |     -------- the item `io` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]  --> src/types/data_serialization_types.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::*;
[INFO] [stdout]   |     -------- the item `FromCursor` is already imported here
[INFO] [stdout] 8 | use crate::error;
[INFO] [stdout] 9 | use crate::frame::FromCursor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `uuid` is imported redundantly
[INFO] [stdout]   --> src/types/data_serialization_types.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use uuid;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate uuid;
[INFO] [stdout]    | ------------------ the item `uuid` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Eq` is imported redundantly
[INFO] [stdout]  --> src/types/value.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Eq` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> src/types/value.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::Into;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoBytes` is imported redundantly
[INFO] [stdout]   --> src/types/value.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use crate::frame::IntoBytes;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 | use super::*;
[INFO] [stdout]    |     -------- the item `IntoBytes` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]   --> src/compression.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::convert::From;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `snap` is imported redundantly
[INFO] [stdout]   --> src/compression.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use snap;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | extern crate snap;
[INFO] [stdout]    | ------------------ the item `snap` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/consistency.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/consistency.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/events.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]   --> src/transport.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use std::sync::Arc;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/cluster/mod.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/cluster/generic_connection_pool.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/cluster/pager.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/cluster/session.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/cluster/session.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]    --> src/frame/events.rs:330:9
[INFO] [stdout]     |
[INFO] [stdout] 329 |     use super::*;
[INFO] [stdout]     |         -------- the item `FromCursor` is already imported here
[INFO] [stdout] 330 |     use crate::frame::traits::FromCursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]    --> src/frame/events.rs:331:9
[INFO] [stdout]     |
[INFO] [stdout] 329 |     use super::*;
[INFO] [stdout]     |         -------- the item `Cursor` is already imported here
[INFO] [stdout] 330 |     use crate::frame::traits::FromCursor;
[INFO] [stdout] 331 |     use std::io::Cursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]    --> src/frame/events.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 361 |     use super::*;
[INFO] [stdout]     |         -------- the item `FromCursor` is already imported here
[INFO] [stdout] 362 |     use crate::frame::traits::FromCursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]    --> src/frame/events.rs:363:9
[INFO] [stdout]     |
[INFO] [stdout] 361 |     use super::*;
[INFO] [stdout]     |         -------- the item `Cursor` is already imported here
[INFO] [stdout] 362 |     use crate::frame::traits::FromCursor;
[INFO] [stdout] 363 |     use std::io::Cursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]    --> src/frame/events.rs:394:9
[INFO] [stdout]     |
[INFO] [stdout] 393 |     use super::*;
[INFO] [stdout]     |         -------- the item `FromCursor` is already imported here
[INFO] [stdout] 394 |     use crate::frame::traits::FromCursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]    --> src/frame/events.rs:395:9
[INFO] [stdout]     |
[INFO] [stdout] 393 |     use super::*;
[INFO] [stdout]     |         -------- the item `Cursor` is already imported here
[INFO] [stdout] 394 |     use crate::frame::traits::FromCursor;
[INFO] [stdout] 395 |     use std::io::Cursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]    --> src/frame/events.rs:433:9
[INFO] [stdout]     |
[INFO] [stdout] 432 |     use super::*;
[INFO] [stdout]     |         -------- the item `FromCursor` is already imported here
[INFO] [stdout] 433 |     use crate::frame::traits::FromCursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]    --> src/frame/events.rs:434:9
[INFO] [stdout]     |
[INFO] [stdout] 432 |     use super::*;
[INFO] [stdout]     |         -------- the item `Cursor` is already imported here
[INFO] [stdout] 433 |     use crate::frame::traits::FromCursor;
[INFO] [stdout] 434 |     use std::io::Cursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]    --> src/frame/events.rs:480:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |     use super::*;
[INFO] [stdout]     |         -------- the item `FromCursor` is already imported here
[INFO] [stdout] 480 |     use crate::frame::traits::FromCursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]    --> src/frame/events.rs:481:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |     use super::*;
[INFO] [stdout]     |         -------- the item `Cursor` is already imported here
[INFO] [stdout] 480 |     use crate::frame::traits::FromCursor;
[INFO] [stdout] 481 |     use std::io::Cursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_auth_challenge.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     use super::*;
[INFO] [stdout]    |         -------- the item `FromCursor` is already imported here
[INFO] [stdout] 22 |     use crate::frame::traits::FromCursor;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_auth_challenge.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     use super::*;
[INFO] [stdout]    |         -------- the item `Cursor` is already imported here
[INFO] [stdout] 22 |     use crate::frame::traits::FromCursor;
[INFO] [stdout] 23 |     use std::io::Cursor;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_auth_response.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoBytes` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_auth_response.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     use super::*;
[INFO] [stdout]    |         -------- the item `IntoBytes` is already imported here
[INFO] [stdout] 50 |     use crate::frame::traits::IntoBytes;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `CBytes` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_auth_response.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     use super::*;
[INFO] [stdout]    |         -------- the item `CBytes` is already imported here
[INFO] [stdout] 50 |     use crate::frame::traits::IntoBytes;
[INFO] [stdout] 51 |     use crate::types::CBytes;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_auth_success.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use super::*;
[INFO] [stdout]    |         -------- the item `FromCursor` is already imported here
[INFO] [stdout] 19 |     use crate::frame::traits::FromCursor;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_auth_success.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use super::*;
[INFO] [stdout]    |         -------- the item `Cursor` is already imported here
[INFO] [stdout] 19 |     use crate::frame::traits::FromCursor;
[INFO] [stdout] 20 |     use std::io::Cursor;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_authenticate.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     use super::*;
[INFO] [stdout]    |         -------- the item `FromCursor` is already imported here
[INFO] [stdout] 24 |     use crate::frame::traits::FromCursor;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_authenticate.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     use super::*;
[INFO] [stdout]    |         -------- the item `Cursor` is already imported here
[INFO] [stdout] 24 |     use crate::frame::traits::FromCursor;
[INFO] [stdout] 25 |     use std::io::Cursor;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_batch.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_event.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     use super::*;
[INFO] [stdout]    |         -------- the item `FromCursor` is already imported here
[INFO] [stdout] 23 |     use crate::frame::events::*;
[INFO] [stdout] 24 |     use crate::frame::traits::FromCursor;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_event.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     use super::*;
[INFO] [stdout]    |         -------- the item `Cursor` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 25 |     use std::io::Cursor;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_execute.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_options.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_prepare.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_query.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/frame/frame_ready.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoBytes` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_ready.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     use super::*;
[INFO] [stdout]    |         -------- the item `IntoBytes` is already imported here
[INFO] [stdout] 23 |     use crate::frame::traits::IntoBytes;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_register.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_startup.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Flag` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_startup.rs:80:24
[INFO] [stdout]    |
[INFO] [stdout] 79 |     use super::*;
[INFO] [stdout]    |         -------- the item `Flag` is already imported here
[INFO] [stdout] 80 |     use crate::frame::{Flag, Frame, Opcode, Version};
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Frame` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_startup.rs:80:30
[INFO] [stdout]    |
[INFO] [stdout] 79 |     use super::*;
[INFO] [stdout]    |         -------- the item `Frame` is already imported here
[INFO] [stdout] 80 |     use crate::frame::{Flag, Frame, Opcode, Version};
[INFO] [stdout]    |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Opcode` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_startup.rs:80:37
[INFO] [stdout]    |
[INFO] [stdout] 79 |     use super::*;
[INFO] [stdout]    |         -------- the item `Opcode` is already imported here
[INFO] [stdout] 80 |     use crate::frame::{Flag, Frame, Opcode, Version};
[INFO] [stdout]    |                                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Version` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_startup.rs:80:45
[INFO] [stdout]    |
[INFO] [stdout] 79 |     use super::*;
[INFO] [stdout]    |         -------- the item `Version` is already imported here
[INFO] [stdout] 80 |     use crate::frame::{Flag, Frame, Opcode, Version};
[INFO] [stdout]    |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_supported.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     use super::*;
[INFO] [stdout]    |         -------- the item `FromCursor` is already imported here
[INFO] [stdout] 31 |     use crate::frame::traits::FromCursor;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]   --> src/frame/frame_supported.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     use super::*;
[INFO] [stdout]    |         -------- the item `Cursor` is already imported here
[INFO] [stdout] 31 |     use crate::frame::traits::FromCursor;
[INFO] [stdout] 32 |     use std::io::Cursor;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/frame/parser.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Compression` is imported redundantly
[INFO] [stdout]  --> src/frame/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::*;
[INFO] [stdout]   |     -------- the item `Compression` is already imported here
[INFO] [stdout] 7 | use crate::compression::Compression;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `error` is imported redundantly
[INFO] [stdout]  --> src/frame/parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::*;
[INFO] [stdout]   |     -------- the item `error` is already imported here
[INFO] [stdout] 7 | use crate::compression::Compression;
[INFO] [stdout] 8 | use crate::error;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ResponseBody` is imported redundantly
[INFO] [stdout]  --> src/frame/parser.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::*;
[INFO] [stdout]   |     -------- the item `ResponseBody` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 9 | use crate::frame::frame_response::ResponseBody;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]   --> src/frame/parser.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use super::*;
[INFO] [stdout]    |     -------- the item `FromCursor` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 10 | use crate::frame::FromCursor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AsByte` is imported redundantly
[INFO] [stdout]    --> src/frame/mod.rs:354:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |     use super::*;
[INFO] [stdout]     |         -------- the item `AsByte` is already imported here
[INFO] [stdout] 354 |     use crate::frame::traits::AsByte;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/load_balancing/random.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/query/batch_executor.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/query/exec_executor.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/query/prepare_executor.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]   --> src/query/query_executor.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use r2d2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate r2d2;
[INFO] [stdout]    | ------------------ the item `r2d2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/query/query_params_builder.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     /// Sets new flags.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/query/query_params_builder.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     /// Sets new with_names parameter value.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/query/query_params_builder.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     /// Sets new serial_consistency value.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/query/query_params_builder.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     /// Sets new timestamp value.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `io` is imported redundantly
[INFO] [stdout]  --> src/types/data_serialization_types.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 7 | use super::*;
[INFO] [stdout]   |     -------- the item `io` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]  --> src/types/data_serialization_types.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::*;
[INFO] [stdout]   |     -------- the item `FromCursor` is already imported here
[INFO] [stdout] 8 | use crate::error;
[INFO] [stdout] 9 | use crate::frame::FromCursor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `uuid` is imported redundantly
[INFO] [stdout]   --> src/types/data_serialization_types.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use uuid;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate uuid;
[INFO] [stdout]    | ------------------ the item `uuid` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Eq` is imported redundantly
[INFO] [stdout]  --> src/types/value.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Eq` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Into` is imported redundantly
[INFO] [stdout]  --> src/types/value.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::Into;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Into` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoBytes` is imported redundantly
[INFO] [stdout]   --> src/types/value.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use crate::frame::IntoBytes;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 | use super::*;
[INFO] [stdout]    |     -------- the item `IntoBytes` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoBytes` is imported redundantly
[INFO] [stdout]    --> src/types/value.rs:257:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |     use super::*;
[INFO] [stdout]     |         -------- the item `IntoBytes` is already imported here
[INFO] [stdout] 257 |     use crate::frame::traits::IntoBytes;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]    --> src/types/mod.rs:695:32
[INFO] [stdout]     |
[INFO] [stdout] 694 |     use super::*;
[INFO] [stdout]     |         -------- the item `FromCursor` is already imported here
[INFO] [stdout] 695 |     use crate::frame::traits::{FromCursor, IntoBytes};
[INFO] [stdout]     |                                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoBytes` is imported redundantly
[INFO] [stdout]    --> src/types/mod.rs:695:44
[INFO] [stdout]     |
[INFO] [stdout] 694 |     use super::*;
[INFO] [stdout]     |         -------- the item `IntoBytes` is already imported here
[INFO] [stdout] 695 |     use crate::frame::traits::{FromCursor, IntoBytes};
[INFO] [stdout]     |                                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]    --> src/types/mod.rs:696:9
[INFO] [stdout]     |
[INFO] [stdout] 694 |     use super::*;
[INFO] [stdout]     |         -------- the item `Cursor` is already imported here
[INFO] [stdout] 695 |     use crate::frame::traits::{FromCursor, IntoBytes};
[INFO] [stdout] 696 |     use std::io::Cursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]   --> src/compression.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::convert::From;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `snap` is imported redundantly
[INFO] [stdout]   --> src/compression.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use snap;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | extern crate snap;
[INFO] [stdout]    | ------------------ the item `snap` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]  --> src/consistency.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::From;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/consistency.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromBytes` is imported redundantly
[INFO] [stdout]    --> src/consistency.rs:148:32
[INFO] [stdout]     |
[INFO] [stdout] 147 |     use super::*;
[INFO] [stdout]     |         -------- the item `FromBytes` is already imported here
[INFO] [stdout] 148 |     use crate::frame::traits::{FromBytes, FromCursor, IntoBytes};
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromCursor` is imported redundantly
[INFO] [stdout]    --> src/consistency.rs:148:43
[INFO] [stdout]     |
[INFO] [stdout] 147 |     use super::*;
[INFO] [stdout]     |         -------- the item `FromCursor` is already imported here
[INFO] [stdout] 148 |     use crate::frame::traits::{FromBytes, FromCursor, IntoBytes};
[INFO] [stdout]     |                                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoBytes` is imported redundantly
[INFO] [stdout]    --> src/consistency.rs:148:55
[INFO] [stdout]     |
[INFO] [stdout] 147 |     use super::*;
[INFO] [stdout]     |         -------- the item `IntoBytes` is already imported here
[INFO] [stdout] 148 |     use crate::frame::traits::{FromBytes, FromCursor, IntoBytes};
[INFO] [stdout]     |                                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/events.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]   --> src/transport.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use std::sync::Arc;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `time::OffsetDateTime::timestamp`: Use `OffsetDateTime::unix_timestamp` instead
[INFO] [stdout]    --> src/types/value.rs:204:41
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let ts: i64 = self.assume_utc().timestamp() * 1_000 + self.nanosecond() as i64 / 1_000_000;
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `time::OffsetDateTime::timestamp`: Use `OffsetDateTime::unix_timestamp` instead
[INFO] [stdout]    --> src/types/value.rs:204:41
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let ts: i64 = self.assume_utc().timestamp() * 1_000 + self.nanosecond() as i64 / 1_000_000;
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 41 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> examples/server_events.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 76 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.19s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: snap v0.2.5
[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" "55c61b8ebbecd7be8590528325c75285794eca16ce143d823711cc18a683a4d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55c61b8ebbecd7be8590528325c75285794eca16ce143d823711cc18a683a4d7", kill_on_drop: false }`
[INFO] [stdout] 55c61b8ebbecd7be8590528325c75285794eca16ce143d823711cc18a683a4d7