[INFO] fetching crate iron-arrow 0.1.0...
[INFO] checking iron-arrow-0.1.0 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate iron-arrow 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate iron-arrow 0.1.0 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iron-arrow 0.1.0
[INFO] finished tweaking crates.io crate iron-arrow 0.1.0
[INFO] tweaked toml for crates.io crate iron-arrow 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c62a7d176642d8365a193b78cda21846ff4e5a449248cd7397b8ac66d6f7f02
[INFO] running `Command { std: "docker" "start" "-a" "7c62a7d176642d8365a193b78cda21846ff4e5a449248cd7397b8ac66d6f7f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c62a7d176642d8365a193b78cda21846ff4e5a449248cd7397b8ac66d6f7f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c62a7d176642d8365a193b78cda21846ff4e5a449248cd7397b8ac66d6f7f02", kill_on_drop: false }`
[INFO] [stdout] 7c62a7d176642d8365a193b78cda21846ff4e5a449248cd7397b8ac66d6f7f02
[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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7e4e7ca01cd384c10d9a71d9f558db443b2b1b03edb4dc903915ba0534d638e
[INFO] running `Command { std: "docker" "start" "-a" "a7e4e7ca01cd384c10d9a71d9f558db443b2b1b03edb4dc903915ba0534d638e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking iron-arrow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax, box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax, box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/common/ty.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/common/ty.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/common/ty.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use array;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]  --> src/common/ty.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]   --> src/common/ty.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::mem;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]   --> src/common/ty.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]    |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/common/bit_util.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array::Array`
[INFO] [stdout]  --> src/common/field.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use array::Array;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]  --> src/common/field.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]   |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/array.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/array.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/array.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]    --> src/array.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 284 |         use std::ptr;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/array.rs:437:15
[INFO] [stdout]     |
[INFO] [stdout] 437 |           use libc;
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StatusCode`
[INFO] [stdout]  --> src/memory_pool.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::{ArrowError, StatusCode};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> src/memory_pool.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/memory_pool.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate libc;
[INFO] [stdout]   | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/buffer.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use libc;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate libc;
[INFO] [stdout]   | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Num`
[INFO] [stdout]   --> src/buffer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use num::Num;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/builder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/builder.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Array`
[INFO] [stdout]  --> src/builder.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use array::{Array, Blob};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/builder.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc`
[INFO] [stdout]    --> src/builder.rs:326:19
[INFO] [stdout]     |
[INFO] [stdout] 326 |               use libc;
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/common/ty.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/memory_pool.rs:120:44
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut page: *mut libc::c_void = mem::uninitialized();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:43:27
[INFO] [stdout]    |
[INFO] [stdout] 43 |         Ok((unsafe { mem::uninitialized() }, 0, 0))
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/buffer.rs:239:27
[INFO] [stdout]     |
[INFO] [stdout] 239 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/common/ty.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/common/ty.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/common/ty.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use array;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]  --> src/common/ty.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]   --> src/common/ty.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::mem;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]   --> src/common/ty.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]    |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/common/bit_util.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/common/bit_util.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |     use rand;
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:9:1
[INFO] [stdout]     |
[INFO] [stdout] 9   | extern crate rand;
[INFO] [stdout]     | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array::Array`
[INFO] [stdout]  --> src/common/field.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use array::Array;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_size_of` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_size_of)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]  --> src/common/field.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]   |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pointer_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]    --> src/common/mod.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |     use std;
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `integer_atomics`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(integer_atomics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/array.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/array.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:80:21
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/array.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]     |                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]    --> src/array.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 284 |         use std::ptr;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/array.rs:437:15
[INFO] [stdout]     |
[INFO] [stdout] 437 |           use libc;
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StatusCode`
[INFO] [stdout]  --> src/memory_pool.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::{ArrowError, StatusCode};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> src/memory_pool.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/memory_pool.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate libc;
[INFO] [stdout]   | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/buffer.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use libc;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate libc;
[INFO] [stdout]   | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Num`
[INFO] [stdout]   --> src/buffer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use num::Num;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/builder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/builder.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Array`
[INFO] [stdout]  --> src/builder.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use array::{Array, Blob};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/builder.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc`
[INFO] [stdout]    --> src/builder.rs:326:19
[INFO] [stdout]     |
[INFO] [stdout] 326 |               use libc;
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MutableBuffer`, `ResizableBuffer`
[INFO] [stdout]    --> src/builder.rs:589:28
[INFO] [stdout]     |
[INFO] [stdout] 589 |   use buffer::{PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/builder.rs:595:7
[INFO] [stdout]     |
[INFO] [stdout] 595 |   use rand;
[INFO] [stdout]     |       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:9:1
[INFO] [stdout]     |
[INFO] [stdout] 9   | extern crate rand;
[INFO] [stdout]     | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]   --> src/lib.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 |   use common::status::ArrowError;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MemoryPool`
[INFO] [stdout]   --> src/lib.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |   use memory_pool::{DefaultMemoryPool, MemoryPool};
[INFO] [stdout]    |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MutableBuffer`
[INFO] [stdout]   --> src/lib.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MutableBuffer`, `PoolBuffer`, `ResizableBuffer`
[INFO] [stdout]   --> src/lib.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer, BufferBuilder, TypedBufferBuilder};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:649:25
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &ArrowSlice<bool> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &dyn ArrowSlice<bool> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:653:25
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &ArrowSlice<i8> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &dyn ArrowSlice<i8> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:19:31
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&Buffer>;
[INFO] [stdout]    |                               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&dyn Buffer>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64),...
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64), ArrowError> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:58:35
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/common/ty.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:116:35
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&Buffer> {
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&dyn Buffer> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:236:32
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/memory_pool.rs:120:44
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut page: *mut libc::c_void = mem::uninitialized();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:43:27
[INFO] [stdout]    |
[INFO] [stdout] 43 |         Ok((unsafe { mem::uninitialized() }, 0, 0))
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/buffer.rs:239:27
[INFO] [stdout]     |
[INFO] [stdout] 239 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_size_of` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_size_of)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pointer_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `integer_atomics`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(integer_atomics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:80:21
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]     |                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:649:25
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &ArrowSlice<bool> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &dyn ArrowSlice<bool> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:653:25
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &ArrowSlice<i8> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &dyn ArrowSlice<i8> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:19:31
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&Buffer>;
[INFO] [stdout]    |                               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&dyn Buffer>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64),...
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64), ArrowError> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:58:35
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:116:35
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&Buffer> {
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&dyn Buffer> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:236:32
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/array.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/builder.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:413:21
[INFO] [stdout]     |
[INFO] [stdout] 413 |       &Ty::Date32 { ref unit } => 32,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:414:21
[INFO] [stdout]     |
[INFO] [stdout] 414 |       &Ty::Date64 { ref unit } => 64,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:416:24
[INFO] [stdout]     |
[INFO] [stdout] 416 |       &Ty::Timestamp { ref unit, ref timezone } => 64,
[INFO] [stdout]     |                        ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:416:34
[INFO] [stdout]     |
[INFO] [stdout] 416 |       &Ty::Timestamp { ref unit, ref timezone } => 64,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:417:21
[INFO] [stdout]     |
[INFO] [stdout] 417 |       &Ty::Time32 { ref unit } => 32,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:418:21
[INFO] [stdout]     |
[INFO] [stdout] 418 |       &Ty::Time64 { ref unit } => 64,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:419:23
[INFO] [stdout]     |
[INFO] [stdout] 419 |       &Ty::Interval { ref unit } => 64,
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:421:22
[INFO] [stdout]     |
[INFO] [stdout] 421 |       &Ty::Decimal { precision, scale } => 16 * 8,
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:421:33
[INFO] [stdout]     |
[INFO] [stdout] 421 |       &Ty::Decimal { precision, scale } => 16 * 8,
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:423:41
[INFO] [stdout]     |
[INFO] [stdout] 423 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => index_type.bit_width(),
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:423:57
[INFO] [stdout]     |
[INFO] [stdout] 423 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => index_type.bit_width(),
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:452:21
[INFO] [stdout]     |
[INFO] [stdout] 452 |       &Ty::Date32 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 32)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:453:21
[INFO] [stdout]     |
[INFO] [stdout] 453 |       &Ty::Date64 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:455:24
[INFO] [stdout]     |
[INFO] [stdout] 455 |       &Ty::Timestamp { ref unit, ref timezone } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                        ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:455:34
[INFO] [stdout]     |
[INFO] [stdout] 455 |       &Ty::Timestamp { ref unit, ref timezone } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:456:21
[INFO] [stdout]     |
[INFO] [stdout] 456 |       &Ty::Time32 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 32)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:457:21
[INFO] [stdout]     |
[INFO] [stdout] 457 |       &Ty::Time64 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:458:23
[INFO] [stdout]     |
[INFO] [stdout] 458 |       &Ty::Interval { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:460:22
[INFO] [stdout]     |
[INFO] [stdout] 460 |       &Ty::Decimal { precision, scale } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 16 * 8)],
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:460:33
[INFO] [stdout]     |
[INFO] [stdout] 460 |       &Ty::Decimal { precision, scale } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 16 * 8)],
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_type`
[INFO] [stdout]    --> src/common/ty.rs:462:19
[INFO] [stdout]     |
[INFO] [stdout] 462 |       &Ty::List { ref value_type } => vec![BufferDesc::validity_buffer(), BufferDesc::offset_buffer()],
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ help: try ignoring the field: `value_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:463:21
[INFO] [stdout]     |
[INFO] [stdout] 463 |       &Ty::Struct { ref fields } => vec![BufferDesc::validity_buffer()],
[INFO] [stdout]     |                     ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:464:20
[INFO] [stdout]     |
[INFO] [stdout] 464 |       &Ty::Union { ref fields, ref type_codes, ref mode } => {
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:464:32
[INFO] [stdout]     |
[INFO] [stdout] 464 |       &Ty::Union { ref fields, ref type_codes, ref mode } => {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:470:25
[INFO] [stdout]     |
[INFO] [stdout] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data...
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:470:41
[INFO] [stdout]     |
[INFO] [stdout] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data...
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:470:57
[INFO] [stdout]     |
[INFO] [stdout] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data...
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte_width`
[INFO] [stdout]    --> src/common/ty.rs:491:30
[INFO] [stdout]     |
[INFO] [stdout] 491 |       &Ty::FixedSizeBinary { byte_width } => "fixed_size_binary",
[INFO] [stdout]     |                              ^^^^^^^^^^ help: try ignoring the field: `byte_width: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:492:21
[INFO] [stdout]     |
[INFO] [stdout] 492 |       &Ty::Date32 { ref unit } => "date32",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:493:21
[INFO] [stdout]     |
[INFO] [stdout] 493 |       &Ty::Date64 { ref unit } => "date64",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:494:24
[INFO] [stdout]     |
[INFO] [stdout] 494 |       &Ty::Timestamp { ref unit, ref timezone } => "timestamp",
[INFO] [stdout]     |                        ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:494:34
[INFO] [stdout]     |
[INFO] [stdout] 494 |       &Ty::Timestamp { ref unit, ref timezone } => "timestamp",
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:495:21
[INFO] [stdout]     |
[INFO] [stdout] 495 |       &Ty::Time32 { ref unit } => "time32",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:496:21
[INFO] [stdout]     |
[INFO] [stdout] 496 |       &Ty::Time64 { ref unit } => "time64",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:497:23
[INFO] [stdout]     |
[INFO] [stdout] 497 |       &Ty::Interval { ref unit } => "interval",
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:498:22
[INFO] [stdout]     |
[INFO] [stdout] 498 |       &Ty::Decimal { precision, scale } => "decimal",
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:498:33
[INFO] [stdout]     |
[INFO] [stdout] 498 |       &Ty::Decimal { precision, scale } => "decimal",
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_type`
[INFO] [stdout]    --> src/common/ty.rs:499:19
[INFO] [stdout]     |
[INFO] [stdout] 499 |       &Ty::List { ref value_type } => "list",
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ help: try ignoring the field: `value_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:500:21
[INFO] [stdout]     |
[INFO] [stdout] 500 |       &Ty::Struct { ref fields } => "struct",
[INFO] [stdout]     |                     ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:501:20
[INFO] [stdout]     |
[INFO] [stdout] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:501:32
[INFO] [stdout]     |
[INFO] [stdout] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:501:48
[INFO] [stdout]     |
[INFO] [stdout] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:502:25
[INFO] [stdout]     |
[INFO] [stdout] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:502:41
[INFO] [stdout]     |
[INFO] [stdout] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:502:57
[INFO] [stdout]     |
[INFO] [stdout] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:555:32
[INFO] [stdout]     |
[INFO] [stdout] 555 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields[i],
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:555:48
[INFO] [stdout]     |
[INFO] [stdout] 555 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields[i],
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:563:32
[INFO] [stdout]     |
[INFO] [stdout] 563 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:563:48
[INFO] [stdout]     |
[INFO] [stdout] 563 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields,
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:571:32
[INFO] [stdout]     |
[INFO] [stdout] 571 |       &Ty::Union { ref fields, ref type_codes, ref mode } => fields.len() as i32,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:571:48
[INFO] [stdout]     |
[INFO] [stdout] 571 |       &Ty::Union { ref fields, ref type_codes, ref mode } => fields.len() as i32,
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:586:34
[INFO] [stdout]     |
[INFO] [stdout] 586 |       &Ty::Timestamp { ref unit, ref timezone } => unit,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:602:33
[INFO] [stdout]     |
[INFO] [stdout] 602 |       &Ty::Decimal { precision, scale } => precision,
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:609:22
[INFO] [stdout]     |
[INFO] [stdout] 609 |       &Ty::Decimal { precision, scale } => scale,
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:623:20
[INFO] [stdout]     |
[INFO] [stdout] 623 |       &Ty::Union { ref fields, ref type_codes, ref mode } => type_codes,
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:623:48
[INFO] [stdout]     |
[INFO] [stdout] 623 |       &Ty::Union { ref fields, ref type_codes, ref mode } => type_codes,
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:630:20
[INFO] [stdout]     |
[INFO] [stdout] 630 |       &Ty::Union { ref fields, ref type_codes, ref mode } => mode,
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:630:32
[INFO] [stdout]     |
[INFO] [stdout] 630 |       &Ty::Union { ref fields, ref type_codes, ref mode } => mode,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:637:41
[INFO] [stdout]     |
[INFO] [stdout] 637 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &index_type,
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:637:57
[INFO] [stdout]     |
[INFO] [stdout] 637 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &index_type,
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:644:25
[INFO] [stdout]     |
[INFO] [stdout] 644 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &dictionary,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:644:57
[INFO] [stdout]     |
[INFO] [stdout] 644 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &dictionary,
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:651:25
[INFO] [stdout]     |
[INFO] [stdout] 651 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => ordered,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:651:41
[INFO] [stdout]     |
[INFO] [stdout] 651 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => ordered,
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:151:28
[INFO] [stdout]     |
[INFO] [stdout] 151 |       &BuilderData::Bool { ref null_bitmap, ref data } => ArrayData::Bool,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/array.rs:151:45
[INFO] [stdout]     |
[INFO] [stdout] 151 |       &BuilderData::Bool { ref null_bitmap, ref data } => ArrayData::Bool,
[INFO] [stdout]     |                                             ^^^^^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:152:29
[INFO] [stdout]     |
[INFO] [stdout] 152 |       &BuilderData::UInt8 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:157:28
[INFO] [stdout]     |
[INFO] [stdout] 157 |       &BuilderData::Int8 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:162:30
[INFO] [stdout]     |
[INFO] [stdout] 162 |       &BuilderData::UInt16 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:167:29
[INFO] [stdout]     |
[INFO] [stdout] 167 |       &BuilderData::Int16 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:172:30
[INFO] [stdout]     |
[INFO] [stdout] 172 |       &BuilderData::UInt32 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:177:29
[INFO] [stdout]     |
[INFO] [stdout] 177 |       &BuilderData::Int32 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:182:30
[INFO] [stdout]     |
[INFO] [stdout] 182 |       &BuilderData::UInt64 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:187:29
[INFO] [stdout]     |
[INFO] [stdout] 187 |       &BuilderData::Int64 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:192:30
[INFO] [stdout]     |
[INFO] [stdout] 192 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/array.rs:264:17
[INFO] [stdout]     |
[INFO] [stdout] 264 |   fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:302:28
[INFO] [stdout]     |
[INFO] [stdout] 302 |       &BuilderData::Bool { ref null_bitmap, ref data } => bit_util::get_bit(data.data(), i),
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_offsets`
[INFO] [stdout]    --> src/array.rs:631:25
[INFO] [stdout]     |
[INFO] [stdout] 631 |       ArrayData::List { ref value_offsets, ref value_array } => value_array,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ help: try ignoring the field: `value_offsets: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/buffer.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     unsafe { mem::forget(self.page) }
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/buffer.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     unsafe { mem::forget(self.page) }
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte_width`
[INFO] [stdout]   --> src/builder.rs:73:29
[INFO] [stdout]    |
[INFO] [stdout] 73 |       Ty::FixedSizeBinary { byte_width } => BuilderData::FixedSizeBinary { null_bitmap, data },
[INFO] [stdout]    |                             ^^^^^^^^^^ help: try ignoring the field: `byte_width: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/builder.rs:465:53
[INFO] [stdout]     |
[INFO] [stdout] 465 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^
[INFO] [stdout] 466 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^
[INFO] [stdout] 467 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 468 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 469 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout] 470 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 471 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout] 472 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 473 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 465 ~       &mut BuilderData::Bool { ref mut null_bitmap, data: _ }   |
[INFO] [stdout] 466 ~       &mut BuilderData::Int8 { ref mut null_bitmap, data: _ }   |
[INFO] [stdout] 467 ~       &mut BuilderData::UInt8 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 468 ~       &mut BuilderData::Int16 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 469 ~       &mut BuilderData::UInt16 { ref mut null_bitmap, data: _ } |
[INFO] [stdout] 470 ~       &mut BuilderData::Int32 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 471 ~       &mut BuilderData::UInt32 { ref mut null_bitmap, data: _ } |
[INFO] [stdout] 472 ~       &mut BuilderData::Int64 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 473 ~       &mut BuilderData::UInt64 { ref mut null_bitmap, data: _ } => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lengths_and_data`
[INFO] [stdout]    --> src/builder.rs:481:55
[INFO] [stdout]     |
[INFO] [stdout] 481 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `lengths_and_data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:481:81
[INFO] [stdout]     |
[INFO] [stdout] 481 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:496:32
[INFO] [stdout]     |
[INFO] [stdout] 496 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 497 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 498 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 499 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 500 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 501 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 502 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 503 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 504 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 496 ~       &mut BuilderData::Bool { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 497 ~       &mut BuilderData::Int8 { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 498 ~       &mut BuilderData::UInt8 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 499 ~       &mut BuilderData::Int16 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 500 ~       &mut BuilderData::UInt16 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 501 ~       &mut BuilderData::Int32 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 502 ~       &mut BuilderData::UInt32 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 503 ~       &mut BuilderData::Int64 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 504 ~       &mut BuilderData::UInt64 { null_bitmap: _, ref mut data } => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:512:34
[INFO] [stdout]     |
[INFO] [stdout] 512 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:512:81
[INFO] [stdout]     |
[INFO] [stdout] 512 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:527:32
[INFO] [stdout]     |
[INFO] [stdout] 527 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 528 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 529 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 530 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 531 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 532 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 533 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 534 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 535 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 527 ~       &mut BuilderData::Bool { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 528 ~       &mut BuilderData::Int8 { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 529 ~       &mut BuilderData::UInt8 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 530 ~       &mut BuilderData::Int16 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 531 ~       &mut BuilderData::UInt16 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 532 ~       &mut BuilderData::Int32 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 533 ~       &mut BuilderData::UInt32 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 534 ~       &mut BuilderData::Int64 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 535 ~       &mut BuilderData::UInt64 { null_bitmap: _, ref mut data } => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:542:34
[INFO] [stdout]     |
[INFO] [stdout] 542 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:542:81
[INFO] [stdout]     |
[INFO] [stdout] 542 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/builder.rs:555:45
[INFO] [stdout]     |
[INFO] [stdout] 555 |       &BuilderData::Bool { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                             ^^^^^^^^
[INFO] [stdout] 556 |       &BuilderData::Int8 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                             ^^^^^^^^
[INFO] [stdout] 557 |       &BuilderData::UInt8 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 558 |       &BuilderData::Int16 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 559 |       &BuilderData::UInt16 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout] 560 |       &BuilderData::Int32 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 561 |       &BuilderData::UInt32 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout] 562 |       &BuilderData::Int64 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 563 |       &BuilderData::UInt64 { ref null_bitmap, ref data } => Some(null_bitmap),
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 555 ~       &BuilderData::Bool { ref null_bitmap, data: _ } |
[INFO] [stdout] 556 ~       &BuilderData::Int8 { ref null_bitmap, data: _ } |
[INFO] [stdout] 557 ~       &BuilderData::UInt8 { ref null_bitmap, data: _ } |
[INFO] [stdout] 558 ~       &BuilderData::Int16 { ref null_bitmap, data: _ } |
[INFO] [stdout] 559 ~       &BuilderData::UInt16 { ref null_bitmap, data: _ } |
[INFO] [stdout] 560 ~       &BuilderData::Int32 { ref null_bitmap, data: _ } |
[INFO] [stdout] 561 ~       &BuilderData::UInt32 { ref null_bitmap, data: _ } |
[INFO] [stdout] 562 ~       &BuilderData::Int64 { ref null_bitmap, data: _ } |
[INFO] [stdout] 563 ~       &BuilderData::UInt64 { ref null_bitmap, data: _ } => Some(null_bitmap),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lengths_and_data`
[INFO] [stdout]    --> src/builder.rs:564:47
[INFO] [stdout]     |
[INFO] [stdout] 564 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => Some(null_bitmap),
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `lengths_and_data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:564:69
[INFO] [stdout]     |
[INFO] [stdout] 564 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => Some(null_bitmap),
[INFO] [stdout]     |                                                                     ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 139 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iron-arrow` (lib) due to 3 previous errors; 139 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/array.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]   --> src/lib.rs:46:18
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer, BufferBuilder, TypedBufferBuilder};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/builder.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]   --> src/lib.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:413:21
[INFO] [stdout]     |
[INFO] [stdout] 413 |       &Ty::Date32 { ref unit } => 32,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:414:21
[INFO] [stdout]     |
[INFO] [stdout] 414 |       &Ty::Date64 { ref unit } => 64,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:416:24
[INFO] [stdout]     |
[INFO] [stdout] 416 |       &Ty::Timestamp { ref unit, ref timezone } => 64,
[INFO] [stdout]     |                        ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:416:34
[INFO] [stdout]     |
[INFO] [stdout] 416 |       &Ty::Timestamp { ref unit, ref timezone } => 64,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:417:21
[INFO] [stdout]     |
[INFO] [stdout] 417 |       &Ty::Time32 { ref unit } => 32,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:418:21
[INFO] [stdout]     |
[INFO] [stdout] 418 |       &Ty::Time64 { ref unit } => 64,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:419:23
[INFO] [stdout]     |
[INFO] [stdout] 419 |       &Ty::Interval { ref unit } => 64,
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:421:22
[INFO] [stdout]     |
[INFO] [stdout] 421 |       &Ty::Decimal { precision, scale } => 16 * 8,
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:421:33
[INFO] [stdout]     |
[INFO] [stdout] 421 |       &Ty::Decimal { precision, scale } => 16 * 8,
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:423:41
[INFO] [stdout]     |
[INFO] [stdout] 423 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => index_type.bit_width(),
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:423:57
[INFO] [stdout]     |
[INFO] [stdout] 423 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => index_type.bit_width(),
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:452:21
[INFO] [stdout]     |
[INFO] [stdout] 452 |       &Ty::Date32 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 32)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:453:21
[INFO] [stdout]     |
[INFO] [stdout] 453 |       &Ty::Date64 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:455:24
[INFO] [stdout]     |
[INFO] [stdout] 455 |       &Ty::Timestamp { ref unit, ref timezone } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                        ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:455:34
[INFO] [stdout]     |
[INFO] [stdout] 455 |       &Ty::Timestamp { ref unit, ref timezone } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:456:21
[INFO] [stdout]     |
[INFO] [stdout] 456 |       &Ty::Time32 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 32)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:457:21
[INFO] [stdout]     |
[INFO] [stdout] 457 |       &Ty::Time64 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:458:23
[INFO] [stdout]     |
[INFO] [stdout] 458 |       &Ty::Interval { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:460:22
[INFO] [stdout]     |
[INFO] [stdout] 460 |       &Ty::Decimal { precision, scale } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 16 * 8)],
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:460:33
[INFO] [stdout]     |
[INFO] [stdout] 460 |       &Ty::Decimal { precision, scale } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 16 * 8)],
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_type`
[INFO] [stdout]    --> src/common/ty.rs:462:19
[INFO] [stdout]     |
[INFO] [stdout] 462 |       &Ty::List { ref value_type } => vec![BufferDesc::validity_buffer(), BufferDesc::offset_buffer()],
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ help: try ignoring the field: `value_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:463:21
[INFO] [stdout]     |
[INFO] [stdout] 463 |       &Ty::Struct { ref fields } => vec![BufferDesc::validity_buffer()],
[INFO] [stdout]     |                     ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:464:20
[INFO] [stdout]     |
[INFO] [stdout] 464 |       &Ty::Union { ref fields, ref type_codes, ref mode } => {
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:464:32
[INFO] [stdout]     |
[INFO] [stdout] 464 |       &Ty::Union { ref fields, ref type_codes, ref mode } => {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:470:25
[INFO] [stdout]     |
[INFO] [stdout] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data...
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:470:41
[INFO] [stdout]     |
[INFO] [stdout] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data...
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:470:57
[INFO] [stdout]     |
[INFO] [stdout] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data...
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte_width`
[INFO] [stdout]    --> src/common/ty.rs:491:30
[INFO] [stdout]     |
[INFO] [stdout] 491 |       &Ty::FixedSizeBinary { byte_width } => "fixed_size_binary",
[INFO] [stdout]     |                              ^^^^^^^^^^ help: try ignoring the field: `byte_width: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:492:21
[INFO] [stdout]     |
[INFO] [stdout] 492 |       &Ty::Date32 { ref unit } => "date32",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:493:21
[INFO] [stdout]     |
[INFO] [stdout] 493 |       &Ty::Date64 { ref unit } => "date64",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:494:24
[INFO] [stdout]     |
[INFO] [stdout] 494 |       &Ty::Timestamp { ref unit, ref timezone } => "timestamp",
[INFO] [stdout]     |                        ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:494:34
[INFO] [stdout]     |
[INFO] [stdout] 494 |       &Ty::Timestamp { ref unit, ref timezone } => "timestamp",
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:495:21
[INFO] [stdout]     |
[INFO] [stdout] 495 |       &Ty::Time32 { ref unit } => "time32",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:496:21
[INFO] [stdout]     |
[INFO] [stdout] 496 |       &Ty::Time64 { ref unit } => "time64",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:497:23
[INFO] [stdout]     |
[INFO] [stdout] 497 |       &Ty::Interval { ref unit } => "interval",
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:498:22
[INFO] [stdout]     |
[INFO] [stdout] 498 |       &Ty::Decimal { precision, scale } => "decimal",
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:498:33
[INFO] [stdout]     |
[INFO] [stdout] 498 |       &Ty::Decimal { precision, scale } => "decimal",
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_type`
[INFO] [stdout]    --> src/common/ty.rs:499:19
[INFO] [stdout]     |
[INFO] [stdout] 499 |       &Ty::List { ref value_type } => "list",
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ help: try ignoring the field: `value_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:500:21
[INFO] [stdout]     |
[INFO] [stdout] 500 |       &Ty::Struct { ref fields } => "struct",
[INFO] [stdout]     |                     ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:501:20
[INFO] [stdout]     |
[INFO] [stdout] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:501:32
[INFO] [stdout]     |
[INFO] [stdout] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:501:48
[INFO] [stdout]     |
[INFO] [stdout] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:502:25
[INFO] [stdout]     |
[INFO] [stdout] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:502:41
[INFO] [stdout]     |
[INFO] [stdout] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:502:57
[INFO] [stdout]     |
[INFO] [stdout] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:555:32
[INFO] [stdout]     |
[INFO] [stdout] 555 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields[i],
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:555:48
[INFO] [stdout]     |
[INFO] [stdout] 555 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields[i],
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:563:32
[INFO] [stdout]     |
[INFO] [stdout] 563 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:563:48
[INFO] [stdout]     |
[INFO] [stdout] 563 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields,
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:571:32
[INFO] [stdout]     |
[INFO] [stdout] 571 |       &Ty::Union { ref fields, ref type_codes, ref mode } => fields.len() as i32,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:571:48
[INFO] [stdout]     |
[INFO] [stdout] 571 |       &Ty::Union { ref fields, ref type_codes, ref mode } => fields.len() as i32,
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:586:34
[INFO] [stdout]     |
[INFO] [stdout] 586 |       &Ty::Timestamp { ref unit, ref timezone } => unit,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:602:33
[INFO] [stdout]     |
[INFO] [stdout] 602 |       &Ty::Decimal { precision, scale } => precision,
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:609:22
[INFO] [stdout]     |
[INFO] [stdout] 609 |       &Ty::Decimal { precision, scale } => scale,
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:623:20
[INFO] [stdout]     |
[INFO] [stdout] 623 |       &Ty::Union { ref fields, ref type_codes, ref mode } => type_codes,
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:623:48
[INFO] [stdout]     |
[INFO] [stdout] 623 |       &Ty::Union { ref fields, ref type_codes, ref mode } => type_codes,
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:630:20
[INFO] [stdout]     |
[INFO] [stdout] 630 |       &Ty::Union { ref fields, ref type_codes, ref mode } => mode,
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:630:32
[INFO] [stdout]     |
[INFO] [stdout] 630 |       &Ty::Union { ref fields, ref type_codes, ref mode } => mode,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:637:41
[INFO] [stdout]     |
[INFO] [stdout] 637 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &index_type,
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:637:57
[INFO] [stdout]     |
[INFO] [stdout] 637 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &index_type,
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:644:25
[INFO] [stdout]     |
[INFO] [stdout] 644 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &dictionary,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:644:57
[INFO] [stdout]     |
[INFO] [stdout] 644 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &dictionary,
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:651:25
[INFO] [stdout]     |
[INFO] [stdout] 651 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => ordered,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:651:41
[INFO] [stdout]     |
[INFO] [stdout] 651 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => ordered,
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/common/bit_util.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |     let mut data = buffer.data_as_mut();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/common/mod.rs:367:9
[INFO] [stdout]     |
[INFO] [stdout] 367 |     let null_bitmap = PoolBuffer::new(pool);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_null_bitmap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/common/mod.rs:409:9
[INFO] [stdout]     |
[INFO] [stdout] 409 |     let null_bitmap = PoolBuffer::new(pool);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_null_bitmap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:151:28
[INFO] [stdout]     |
[INFO] [stdout] 151 |       &BuilderData::Bool { ref null_bitmap, ref data } => ArrayData::Bool,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/array.rs:151:45
[INFO] [stdout]     |
[INFO] [stdout] 151 |       &BuilderData::Bool { ref null_bitmap, ref data } => ArrayData::Bool,
[INFO] [stdout]     |                                             ^^^^^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:152:29
[INFO] [stdout]     |
[INFO] [stdout] 152 |       &BuilderData::UInt8 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:157:28
[INFO] [stdout]     |
[INFO] [stdout] 157 |       &BuilderData::Int8 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:162:30
[INFO] [stdout]     |
[INFO] [stdout] 162 |       &BuilderData::UInt16 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:167:29
[INFO] [stdout]     |
[INFO] [stdout] 167 |       &BuilderData::Int16 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:172:30
[INFO] [stdout]     |
[INFO] [stdout] 172 |       &BuilderData::UInt32 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:177:29
[INFO] [stdout]     |
[INFO] [stdout] 177 |       &BuilderData::Int32 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:182:30
[INFO] [stdout]     |
[INFO] [stdout] 182 |       &BuilderData::UInt64 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:187:29
[INFO] [stdout]     |
[INFO] [stdout] 187 |       &BuilderData::Int64 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:192:30
[INFO] [stdout]     |
[INFO] [stdout] 192 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/array.rs:264:17
[INFO] [stdout]     |
[INFO] [stdout] 264 |   fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:302:28
[INFO] [stdout]     |
[INFO] [stdout] 302 |       &BuilderData::Bool { ref null_bitmap, ref data } => bit_util::get_bit(data.data(), i),
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_offsets`
[INFO] [stdout]    --> src/array.rs:631:25
[INFO] [stdout]     |
[INFO] [stdout] 631 |       ArrayData::List { ref value_offsets, ref value_array } => value_array,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ help: try ignoring the field: `value_offsets: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/memory_pool.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |     for i in 0..100 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/buffer.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     unsafe { mem::forget(self.page) }
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/buffer.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     unsafe { mem::forget(self.page) }
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte_width`
[INFO] [stdout]   --> src/builder.rs:73:29
[INFO] [stdout]    |
[INFO] [stdout] 73 |       Ty::FixedSizeBinary { byte_width } => BuilderData::FixedSizeBinary { null_bitmap, data },
[INFO] [stdout]    |                             ^^^^^^^^^^ help: try ignoring the field: `byte_width: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/builder.rs:465:53
[INFO] [stdout]     |
[INFO] [stdout] 465 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^
[INFO] [stdout] 466 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^
[INFO] [stdout] 467 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 468 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 469 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout] 470 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 471 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout] 472 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 473 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 465 ~       &mut BuilderData::Bool { ref mut null_bitmap, data: _ }   |
[INFO] [stdout] 466 ~       &mut BuilderData::Int8 { ref mut null_bitmap, data: _ }   |
[INFO] [stdout] 467 ~       &mut BuilderData::UInt8 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 468 ~       &mut BuilderData::Int16 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 469 ~       &mut BuilderData::UInt16 { ref mut null_bitmap, data: _ } |
[INFO] [stdout] 470 ~       &mut BuilderData::Int32 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 471 ~       &mut BuilderData::UInt32 { ref mut null_bitmap, data: _ } |
[INFO] [stdout] 472 ~       &mut BuilderData::Int64 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 473 ~       &mut BuilderData::UInt64 { ref mut null_bitmap, data: _ } => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lengths_and_data`
[INFO] [stdout]    --> src/builder.rs:481:55
[INFO] [stdout]     |
[INFO] [stdout] 481 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `lengths_and_data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:481:81
[INFO] [stdout]     |
[INFO] [stdout] 481 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:496:32
[INFO] [stdout]     |
[INFO] [stdout] 496 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 497 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 498 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 499 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 500 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 501 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 502 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 503 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 504 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 496 ~       &mut BuilderData::Bool { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 497 ~       &mut BuilderData::Int8 { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 498 ~       &mut BuilderData::UInt8 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 499 ~       &mut BuilderData::Int16 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 500 ~       &mut BuilderData::UInt16 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 501 ~       &mut BuilderData::Int32 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 502 ~       &mut BuilderData::UInt32 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 503 ~       &mut BuilderData::Int64 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 504 ~       &mut BuilderData::UInt64 { null_bitmap: _, ref mut data } => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:512:34
[INFO] [stdout]     |
[INFO] [stdout] 512 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:512:81
[INFO] [stdout]     |
[INFO] [stdout] 512 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:527:32
[INFO] [stdout]     |
[INFO] [stdout] 527 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 528 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 529 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 530 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 531 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 532 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 533 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 534 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 535 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 527 ~       &mut BuilderData::Bool { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 528 ~       &mut BuilderData::Int8 { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 529 ~       &mut BuilderData::UInt8 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 530 ~       &mut BuilderData::Int16 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 531 ~       &mut BuilderData::UInt16 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 532 ~       &mut BuilderData::Int32 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 533 ~       &mut BuilderData::UInt32 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 534 ~       &mut BuilderData::Int64 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 535 ~       &mut BuilderData::UInt64 { null_bitmap: _, ref mut data } => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:542:34
[INFO] [stdout]     |
[INFO] [stdout] 542 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:542:81
[INFO] [stdout]     |
[INFO] [stdout] 542 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/builder.rs:555:45
[INFO] [stdout]     |
[INFO] [stdout] 555 |       &BuilderData::Bool { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                             ^^^^^^^^
[INFO] [stdout] 556 |       &BuilderData::Int8 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                             ^^^^^^^^
[INFO] [stdout] 557 |       &BuilderData::UInt8 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 558 |       &BuilderData::Int16 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 559 |       &BuilderData::UInt16 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout] 560 |       &BuilderData::Int32 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 561 |       &BuilderData::UInt32 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout] 562 |       &BuilderData::Int64 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 563 |       &BuilderData::UInt64 { ref null_bitmap, ref data } => Some(null_bitmap),
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 555 ~       &BuilderData::Bool { ref null_bitmap, data: _ } |
[INFO] [stdout] 556 ~       &BuilderData::Int8 { ref null_bitmap, data: _ } |
[INFO] [stdout] 557 ~       &BuilderData::UInt8 { ref null_bitmap, data: _ } |
[INFO] [stdout] 558 ~       &BuilderData::Int16 { ref null_bitmap, data: _ } |
[INFO] [stdout] 559 ~       &BuilderData::UInt16 { ref null_bitmap, data: _ } |
[INFO] [stdout] 560 ~       &BuilderData::Int32 { ref null_bitmap, data: _ } |
[INFO] [stdout] 561 ~       &BuilderData::UInt32 { ref null_bitmap, data: _ } |
[INFO] [stdout] 562 ~       &BuilderData::Int64 { ref null_bitmap, data: _ } |
[INFO] [stdout] 563 ~       &BuilderData::UInt64 { ref null_bitmap, data: _ } => Some(null_bitmap),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lengths_and_data`
[INFO] [stdout]    --> src/builder.rs:564:47
[INFO] [stdout]     |
[INFO] [stdout] 564 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => Some(null_bitmap),
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `lengths_and_data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:564:69
[INFO] [stdout]     |
[INFO] [stdout] 564 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => Some(null_bitmap),
[INFO] [stdout]     |                                                                     ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:600:9
[INFO] [stdout]     |
[INFO] [stdout] 600 |     for i in 0..100 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:624:9
[INFO] [stdout]     |
[INFO] [stdout] 624 |     for i in 0..100 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 684 |   test_primitive_type_builder!(test_i8_builder, Ty::Int8, i8, 128);
[INFO] [stdout]     |   ---------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 685 |   test_primitive_type_builder!(test_u8_builder, Ty::UInt8, u8, 128);
[INFO] [stdout]     |   ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 686 |   test_primitive_type_builder!(test_i16_builder, Ty::Int16, i16, 128);
[INFO] [stdout]     |   ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 687 |   test_primitive_type_builder!(test_u16_builder, Ty::UInt16, u16, 128);
[INFO] [stdout]     |   -------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 688 |   test_primitive_type_builder!(test_i32_builder, Ty::Int32, i32, 128);
[INFO] [stdout]     |   ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 689 |   test_primitive_type_builder!(test_u32_builder, Ty::UInt32, u32, 128);
[INFO] [stdout]     |   -------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 690 |   test_primitive_type_builder!(test_i64_builder, Ty::Int64, i64, 128);
[INFO] [stdout]     |   ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 691 |   test_primitive_type_builder!(test_u64_builder, Ty::UInt64, u64, 128);
[INFO] [stdout]     |   -------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:708:9
[INFO] [stdout]     |
[INFO] [stdout] 708 |     for i in 0..100 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]   --> src/lib.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut buffer = PoolBuffer::new(Arc::new(RefCell::new(DefaultMemoryPool::new())));
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut buffer = PoolBuffer::new(Arc::new(RefCell::new(DefaultMemoryPool::new())));
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 166 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iron-arrow` (lib test) due to 3 previous errors; 166 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a7e4e7ca01cd384c10d9a71d9f558db443b2b1b03edb4dc903915ba0534d638e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7e4e7ca01cd384c10d9a71d9f558db443b2b1b03edb4dc903915ba0534d638e", kill_on_drop: false }`
[INFO] [stdout] a7e4e7ca01cd384c10d9a71d9f558db443b2b1b03edb4dc903915ba0534d638e
[INFO] checking iron-arrow-0.1.0 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate iron-arrow 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate iron-arrow 0.1.0 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iron-arrow 0.1.0
[INFO] finished tweaking crates.io crate iron-arrow 0.1.0
[INFO] tweaked toml for crates.io crate iron-arrow 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 832f6b10ad73210caffb40c241679923265d9d0de291c32903e50b1e719b74b4
[INFO] running `Command { std: "docker" "start" "-a" "832f6b10ad73210caffb40c241679923265d9d0de291c32903e50b1e719b74b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "832f6b10ad73210caffb40c241679923265d9d0de291c32903e50b1e719b74b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "832f6b10ad73210caffb40c241679923265d9d0de291c32903e50b1e719b74b4", kill_on_drop: false }`
[INFO] [stdout] 832f6b10ad73210caffb40c241679923265d9d0de291c32903e50b1e719b74b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a979401f0782067d03d9cfbf8dbd1da9f9ef5cb93389c66ebdcc313dfca3c63
[INFO] running `Command { std: "docker" "start" "-a" "8a979401f0782067d03d9cfbf8dbd1da9f9ef5cb93389c66ebdcc313dfca3c63", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking iron-arrow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax, box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax, box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/common/ty.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/common/ty.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/common/ty.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use array;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]  --> src/common/ty.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]   --> src/common/ty.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::mem;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]   --> src/common/ty.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]    |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/common/bit_util.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array::Array`
[INFO] [stdout]  --> src/common/field.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use array::Array;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]  --> src/common/field.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]   |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/array.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/array.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/array.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]    --> src/array.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 284 |         use std::ptr;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/array.rs:437:15
[INFO] [stdout]     |
[INFO] [stdout] 437 |           use libc;
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StatusCode`
[INFO] [stdout]  --> src/memory_pool.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::{ArrowError, StatusCode};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> src/memory_pool.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/memory_pool.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate libc;
[INFO] [stdout]   | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/buffer.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use libc;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate libc;
[INFO] [stdout]   | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Num`
[INFO] [stdout]   --> src/buffer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use num::Num;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/builder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/builder.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Array`
[INFO] [stdout]  --> src/builder.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use array::{Array, Blob};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/builder.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc`
[INFO] [stdout]    --> src/builder.rs:326:19
[INFO] [stdout]     |
[INFO] [stdout] 326 |               use libc;
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/common/ty.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/memory_pool.rs:120:44
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut page: *mut libc::c_void = mem::uninitialized();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:43:27
[INFO] [stdout]    |
[INFO] [stdout] 43 |         Ok((unsafe { mem::uninitialized() }, 0, 0))
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/buffer.rs:239:27
[INFO] [stdout]     |
[INFO] [stdout] 239 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_size_of` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_size_of)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pointer_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `integer_atomics`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(integer_atomics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:80:21
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]     |                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/common/ty.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/common/ty.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/common/ty.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use array;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]  --> src/common/ty.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]   --> src/common/ty.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::mem;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]   --> src/common/ty.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]    |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/common/bit_util.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/common/bit_util.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |     use rand;
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:9:1
[INFO] [stdout]     |
[INFO] [stdout] 9   | extern crate rand;
[INFO] [stdout]     | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array::Array`
[INFO] [stdout]  --> src/common/field.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use array::Array;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]  --> src/common/field.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]   |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]    --> src/common/mod.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |     use std;
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/array.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/array.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/array.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]    --> src/array.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 284 |         use std::ptr;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/array.rs:437:15
[INFO] [stdout]     |
[INFO] [stdout] 437 |           use libc;
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StatusCode`
[INFO] [stdout]  --> src/memory_pool.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::{ArrowError, StatusCode};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> src/memory_pool.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/memory_pool.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate libc;
[INFO] [stdout]   | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/buffer.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use libc;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate libc;
[INFO] [stdout]   | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Num`
[INFO] [stdout]   --> src/buffer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use num::Num;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/builder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/builder.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Array`
[INFO] [stdout]  --> src/builder.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use array::{Array, Blob};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/builder.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc`
[INFO] [stdout]    --> src/builder.rs:326:19
[INFO] [stdout]     |
[INFO] [stdout] 326 |               use libc;
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MutableBuffer`, `ResizableBuffer`
[INFO] [stdout]    --> src/builder.rs:589:28
[INFO] [stdout]     |
[INFO] [stdout] 589 |   use buffer::{PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/builder.rs:595:7
[INFO] [stdout]     |
[INFO] [stdout] 595 |   use rand;
[INFO] [stdout]     |       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:9:1
[INFO] [stdout]     |
[INFO] [stdout] 9   | extern crate rand;
[INFO] [stdout]     | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]   --> src/lib.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 |   use common::status::ArrowError;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MemoryPool`
[INFO] [stdout]   --> src/lib.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |   use memory_pool::{DefaultMemoryPool, MemoryPool};
[INFO] [stdout]    |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MutableBuffer`
[INFO] [stdout]   --> src/lib.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MutableBuffer`, `PoolBuffer`, `ResizableBuffer`
[INFO] [stdout]   --> src/lib.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer, BufferBuilder, TypedBufferBuilder};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:649:25
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &ArrowSlice<bool> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &dyn ArrowSlice<bool> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:653:25
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &ArrowSlice<i8> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &dyn ArrowSlice<i8> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:19:31
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&Buffer>;
[INFO] [stdout]    |                               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&dyn Buffer>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64),...
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64), ArrowError> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:58:35
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:116:35
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&Buffer> {
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&dyn Buffer> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:236:32
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/common/ty.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/memory_pool.rs:120:44
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut page: *mut libc::c_void = mem::uninitialized();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:43:27
[INFO] [stdout]    |
[INFO] [stdout] 43 |         Ok((unsafe { mem::uninitialized() }, 0, 0))
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/buffer.rs:239:27
[INFO] [stdout]     |
[INFO] [stdout] 239 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_size_of` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_size_of)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pointer_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `integer_atomics`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(integer_atomics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:80:21
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]     |                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:649:25
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &ArrowSlice<bool> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &dyn ArrowSlice<bool> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:653:25
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &ArrowSlice<i8> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &dyn ArrowSlice<i8> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:19:31
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&Buffer>;
[INFO] [stdout]    |                               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&dyn Buffer>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64),...
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64), ArrowError> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:58:35
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:116:35
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&Buffer> {
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&dyn Buffer> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:236:32
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/array.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/builder.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:413:21
[INFO] [stdout]     |
[INFO] [stdout] 413 |       &Ty::Date32 { ref unit } => 32,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:414:21
[INFO] [stdout]     |
[INFO] [stdout] 414 |       &Ty::Date64 { ref unit } => 64,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:416:24
[INFO] [stdout]     |
[INFO] [stdout] 416 |       &Ty::Timestamp { ref unit, ref timezone } => 64,
[INFO] [stdout]     |                        ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:416:34
[INFO] [stdout]     |
[INFO] [stdout] 416 |       &Ty::Timestamp { ref unit, ref timezone } => 64,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:417:21
[INFO] [stdout]     |
[INFO] [stdout] 417 |       &Ty::Time32 { ref unit } => 32,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:418:21
[INFO] [stdout]     |
[INFO] [stdout] 418 |       &Ty::Time64 { ref unit } => 64,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:419:23
[INFO] [stdout]     |
[INFO] [stdout] 419 |       &Ty::Interval { ref unit } => 64,
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:421:22
[INFO] [stdout]     |
[INFO] [stdout] 421 |       &Ty::Decimal { precision, scale } => 16 * 8,
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:421:33
[INFO] [stdout]     |
[INFO] [stdout] 421 |       &Ty::Decimal { precision, scale } => 16 * 8,
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:423:41
[INFO] [stdout]     |
[INFO] [stdout] 423 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => index_type.bit_width(),
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:423:57
[INFO] [stdout]     |
[INFO] [stdout] 423 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => index_type.bit_width(),
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:452:21
[INFO] [stdout]     |
[INFO] [stdout] 452 |       &Ty::Date32 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 32)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:453:21
[INFO] [stdout]     |
[INFO] [stdout] 453 |       &Ty::Date64 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:455:24
[INFO] [stdout]     |
[INFO] [stdout] 455 |       &Ty::Timestamp { ref unit, ref timezone } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                        ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:455:34
[INFO] [stdout]     |
[INFO] [stdout] 455 |       &Ty::Timestamp { ref unit, ref timezone } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:456:21
[INFO] [stdout]     |
[INFO] [stdout] 456 |       &Ty::Time32 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 32)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:457:21
[INFO] [stdout]     |
[INFO] [stdout] 457 |       &Ty::Time64 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:458:23
[INFO] [stdout]     |
[INFO] [stdout] 458 |       &Ty::Interval { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:460:22
[INFO] [stdout]     |
[INFO] [stdout] 460 |       &Ty::Decimal { precision, scale } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 16 * 8)],
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:460:33
[INFO] [stdout]     |
[INFO] [stdout] 460 |       &Ty::Decimal { precision, scale } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 16 * 8)],
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_type`
[INFO] [stdout]    --> src/common/ty.rs:462:19
[INFO] [stdout]     |
[INFO] [stdout] 462 |       &Ty::List { ref value_type } => vec![BufferDesc::validity_buffer(), BufferDesc::offset_buffer()],
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ help: try ignoring the field: `value_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:463:21
[INFO] [stdout]     |
[INFO] [stdout] 463 |       &Ty::Struct { ref fields } => vec![BufferDesc::validity_buffer()],
[INFO] [stdout]     |                     ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:464:20
[INFO] [stdout]     |
[INFO] [stdout] 464 |       &Ty::Union { ref fields, ref type_codes, ref mode } => {
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:464:32
[INFO] [stdout]     |
[INFO] [stdout] 464 |       &Ty::Union { ref fields, ref type_codes, ref mode } => {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:470:25
[INFO] [stdout]     |
[INFO] [stdout] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data...
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:470:41
[INFO] [stdout]     |
[INFO] [stdout] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data...
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:470:57
[INFO] [stdout]     |
[INFO] [stdout] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data...
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte_width`
[INFO] [stdout]    --> src/common/ty.rs:491:30
[INFO] [stdout]     |
[INFO] [stdout] 491 |       &Ty::FixedSizeBinary { byte_width } => "fixed_size_binary",
[INFO] [stdout]     |                              ^^^^^^^^^^ help: try ignoring the field: `byte_width: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:492:21
[INFO] [stdout]     |
[INFO] [stdout] 492 |       &Ty::Date32 { ref unit } => "date32",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:493:21
[INFO] [stdout]     |
[INFO] [stdout] 493 |       &Ty::Date64 { ref unit } => "date64",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:494:24
[INFO] [stdout]     |
[INFO] [stdout] 494 |       &Ty::Timestamp { ref unit, ref timezone } => "timestamp",
[INFO] [stdout]     |                        ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:494:34
[INFO] [stdout]     |
[INFO] [stdout] 494 |       &Ty::Timestamp { ref unit, ref timezone } => "timestamp",
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:495:21
[INFO] [stdout]     |
[INFO] [stdout] 495 |       &Ty::Time32 { ref unit } => "time32",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:496:21
[INFO] [stdout]     |
[INFO] [stdout] 496 |       &Ty::Time64 { ref unit } => "time64",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:497:23
[INFO] [stdout]     |
[INFO] [stdout] 497 |       &Ty::Interval { ref unit } => "interval",
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:498:22
[INFO] [stdout]     |
[INFO] [stdout] 498 |       &Ty::Decimal { precision, scale } => "decimal",
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:498:33
[INFO] [stdout]     |
[INFO] [stdout] 498 |       &Ty::Decimal { precision, scale } => "decimal",
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_type`
[INFO] [stdout]    --> src/common/ty.rs:499:19
[INFO] [stdout]     |
[INFO] [stdout] 499 |       &Ty::List { ref value_type } => "list",
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ help: try ignoring the field: `value_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:500:21
[INFO] [stdout]     |
[INFO] [stdout] 500 |       &Ty::Struct { ref fields } => "struct",
[INFO] [stdout]     |                     ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:501:20
[INFO] [stdout]     |
[INFO] [stdout] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:501:32
[INFO] [stdout]     |
[INFO] [stdout] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:501:48
[INFO] [stdout]     |
[INFO] [stdout] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:502:25
[INFO] [stdout]     |
[INFO] [stdout] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:502:41
[INFO] [stdout]     |
[INFO] [stdout] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:502:57
[INFO] [stdout]     |
[INFO] [stdout] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:555:32
[INFO] [stdout]     |
[INFO] [stdout] 555 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields[i],
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:555:48
[INFO] [stdout]     |
[INFO] [stdout] 555 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields[i],
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:563:32
[INFO] [stdout]     |
[INFO] [stdout] 563 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:563:48
[INFO] [stdout]     |
[INFO] [stdout] 563 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields,
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:571:32
[INFO] [stdout]     |
[INFO] [stdout] 571 |       &Ty::Union { ref fields, ref type_codes, ref mode } => fields.len() as i32,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:571:48
[INFO] [stdout]     |
[INFO] [stdout] 571 |       &Ty::Union { ref fields, ref type_codes, ref mode } => fields.len() as i32,
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:586:34
[INFO] [stdout]     |
[INFO] [stdout] 586 |       &Ty::Timestamp { ref unit, ref timezone } => unit,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:602:33
[INFO] [stdout]     |
[INFO] [stdout] 602 |       &Ty::Decimal { precision, scale } => precision,
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:609:22
[INFO] [stdout]     |
[INFO] [stdout] 609 |       &Ty::Decimal { precision, scale } => scale,
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:623:20
[INFO] [stdout]     |
[INFO] [stdout] 623 |       &Ty::Union { ref fields, ref type_codes, ref mode } => type_codes,
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:623:48
[INFO] [stdout]     |
[INFO] [stdout] 623 |       &Ty::Union { ref fields, ref type_codes, ref mode } => type_codes,
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:630:20
[INFO] [stdout]     |
[INFO] [stdout] 630 |       &Ty::Union { ref fields, ref type_codes, ref mode } => mode,
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:630:32
[INFO] [stdout]     |
[INFO] [stdout] 630 |       &Ty::Union { ref fields, ref type_codes, ref mode } => mode,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:637:41
[INFO] [stdout]     |
[INFO] [stdout] 637 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &index_type,
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:637:57
[INFO] [stdout]     |
[INFO] [stdout] 637 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &index_type,
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:644:25
[INFO] [stdout]     |
[INFO] [stdout] 644 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &dictionary,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:644:57
[INFO] [stdout]     |
[INFO] [stdout] 644 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &dictionary,
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:651:25
[INFO] [stdout]     |
[INFO] [stdout] 651 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => ordered,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:651:41
[INFO] [stdout]     |
[INFO] [stdout] 651 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => ordered,
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:151:28
[INFO] [stdout]     |
[INFO] [stdout] 151 |       &BuilderData::Bool { ref null_bitmap, ref data } => ArrayData::Bool,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/array.rs:151:45
[INFO] [stdout]     |
[INFO] [stdout] 151 |       &BuilderData::Bool { ref null_bitmap, ref data } => ArrayData::Bool,
[INFO] [stdout]     |                                             ^^^^^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:152:29
[INFO] [stdout]     |
[INFO] [stdout] 152 |       &BuilderData::UInt8 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:157:28
[INFO] [stdout]     |
[INFO] [stdout] 157 |       &BuilderData::Int8 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:162:30
[INFO] [stdout]     |
[INFO] [stdout] 162 |       &BuilderData::UInt16 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:167:29
[INFO] [stdout]     |
[INFO] [stdout] 167 |       &BuilderData::Int16 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:172:30
[INFO] [stdout]     |
[INFO] [stdout] 172 |       &BuilderData::UInt32 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:177:29
[INFO] [stdout]     |
[INFO] [stdout] 177 |       &BuilderData::Int32 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:182:30
[INFO] [stdout]     |
[INFO] [stdout] 182 |       &BuilderData::UInt64 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:187:29
[INFO] [stdout]     |
[INFO] [stdout] 187 |       &BuilderData::Int64 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:192:30
[INFO] [stdout]     |
[INFO] [stdout] 192 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/array.rs:264:17
[INFO] [stdout]     |
[INFO] [stdout] 264 |   fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:302:28
[INFO] [stdout]     |
[INFO] [stdout] 302 |       &BuilderData::Bool { ref null_bitmap, ref data } => bit_util::get_bit(data.data(), i),
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_offsets`
[INFO] [stdout]    --> src/array.rs:631:25
[INFO] [stdout]     |
[INFO] [stdout] 631 |       ArrayData::List { ref value_offsets, ref value_array } => value_array,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ help: try ignoring the field: `value_offsets: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/buffer.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     unsafe { mem::forget(self.page) }
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/buffer.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     unsafe { mem::forget(self.page) }
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte_width`
[INFO] [stdout]   --> src/builder.rs:73:29
[INFO] [stdout]    |
[INFO] [stdout] 73 |       Ty::FixedSizeBinary { byte_width } => BuilderData::FixedSizeBinary { null_bitmap, data },
[INFO] [stdout]    |                             ^^^^^^^^^^ help: try ignoring the field: `byte_width: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/builder.rs:465:53
[INFO] [stdout]     |
[INFO] [stdout] 465 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^
[INFO] [stdout] 466 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^
[INFO] [stdout] 467 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 468 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 469 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout] 470 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 471 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout] 472 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 473 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 465 ~       &mut BuilderData::Bool { ref mut null_bitmap, data: _ }   |
[INFO] [stdout] 466 ~       &mut BuilderData::Int8 { ref mut null_bitmap, data: _ }   |
[INFO] [stdout] 467 ~       &mut BuilderData::UInt8 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 468 ~       &mut BuilderData::Int16 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 469 ~       &mut BuilderData::UInt16 { ref mut null_bitmap, data: _ } |
[INFO] [stdout] 470 ~       &mut BuilderData::Int32 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 471 ~       &mut BuilderData::UInt32 { ref mut null_bitmap, data: _ } |
[INFO] [stdout] 472 ~       &mut BuilderData::Int64 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 473 ~       &mut BuilderData::UInt64 { ref mut null_bitmap, data: _ } => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lengths_and_data`
[INFO] [stdout]    --> src/builder.rs:481:55
[INFO] [stdout]     |
[INFO] [stdout] 481 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `lengths_and_data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:481:81
[INFO] [stdout]     |
[INFO] [stdout] 481 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:496:32
[INFO] [stdout]     |
[INFO] [stdout] 496 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 497 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 498 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 499 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 500 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 501 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 502 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 503 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 504 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 496 ~       &mut BuilderData::Bool { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 497 ~       &mut BuilderData::Int8 { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 498 ~       &mut BuilderData::UInt8 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 499 ~       &mut BuilderData::Int16 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 500 ~       &mut BuilderData::UInt16 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 501 ~       &mut BuilderData::Int32 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 502 ~       &mut BuilderData::UInt32 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 503 ~       &mut BuilderData::Int64 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 504 ~       &mut BuilderData::UInt64 { null_bitmap: _, ref mut data } => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:512:34
[INFO] [stdout]     |
[INFO] [stdout] 512 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:512:81
[INFO] [stdout]     |
[INFO] [stdout] 512 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:527:32
[INFO] [stdout]     |
[INFO] [stdout] 527 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 528 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 529 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 530 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 531 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 532 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 533 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 534 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 535 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 527 ~       &mut BuilderData::Bool { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 528 ~       &mut BuilderData::Int8 { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 529 ~       &mut BuilderData::UInt8 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 530 ~       &mut BuilderData::Int16 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 531 ~       &mut BuilderData::UInt16 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 532 ~       &mut BuilderData::Int32 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 533 ~       &mut BuilderData::UInt32 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 534 ~       &mut BuilderData::Int64 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 535 ~       &mut BuilderData::UInt64 { null_bitmap: _, ref mut data } => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:542:34
[INFO] [stdout]     |
[INFO] [stdout] 542 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:542:81
[INFO] [stdout]     |
[INFO] [stdout] 542 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/builder.rs:555:45
[INFO] [stdout]     |
[INFO] [stdout] 555 |       &BuilderData::Bool { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                             ^^^^^^^^
[INFO] [stdout] 556 |       &BuilderData::Int8 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                             ^^^^^^^^
[INFO] [stdout] 557 |       &BuilderData::UInt8 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 558 |       &BuilderData::Int16 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 559 |       &BuilderData::UInt16 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout] 560 |       &BuilderData::Int32 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 561 |       &BuilderData::UInt32 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout] 562 |       &BuilderData::Int64 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 563 |       &BuilderData::UInt64 { ref null_bitmap, ref data } => Some(null_bitmap),
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 555 ~       &BuilderData::Bool { ref null_bitmap, data: _ } |
[INFO] [stdout] 556 ~       &BuilderData::Int8 { ref null_bitmap, data: _ } |
[INFO] [stdout] 557 ~       &BuilderData::UInt8 { ref null_bitmap, data: _ } |
[INFO] [stdout] 558 ~       &BuilderData::Int16 { ref null_bitmap, data: _ } |
[INFO] [stdout] 559 ~       &BuilderData::UInt16 { ref null_bitmap, data: _ } |
[INFO] [stdout] 560 ~       &BuilderData::Int32 { ref null_bitmap, data: _ } |
[INFO] [stdout] 561 ~       &BuilderData::UInt32 { ref null_bitmap, data: _ } |
[INFO] [stdout] 562 ~       &BuilderData::Int64 { ref null_bitmap, data: _ } |
[INFO] [stdout] 563 ~       &BuilderData::UInt64 { ref null_bitmap, data: _ } => Some(null_bitmap),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lengths_and_data`
[INFO] [stdout]    --> src/builder.rs:564:47
[INFO] [stdout]     |
[INFO] [stdout] 564 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => Some(null_bitmap),
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `lengths_and_data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:564:69
[INFO] [stdout]     |
[INFO] [stdout] 564 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => Some(null_bitmap),
[INFO] [stdout]     |                                                                     ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 139 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iron-arrow` (lib) due to 3 previous errors; 139 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/array.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]   --> src/lib.rs:46:18
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer, BufferBuilder, TypedBufferBuilder};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/builder.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]   --> src/lib.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:413:21
[INFO] [stdout]     |
[INFO] [stdout] 413 |       &Ty::Date32 { ref unit } => 32,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:414:21
[INFO] [stdout]     |
[INFO] [stdout] 414 |       &Ty::Date64 { ref unit } => 64,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:416:24
[INFO] [stdout]     |
[INFO] [stdout] 416 |       &Ty::Timestamp { ref unit, ref timezone } => 64,
[INFO] [stdout]     |                        ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:416:34
[INFO] [stdout]     |
[INFO] [stdout] 416 |       &Ty::Timestamp { ref unit, ref timezone } => 64,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:417:21
[INFO] [stdout]     |
[INFO] [stdout] 417 |       &Ty::Time32 { ref unit } => 32,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:418:21
[INFO] [stdout]     |
[INFO] [stdout] 418 |       &Ty::Time64 { ref unit } => 64,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:419:23
[INFO] [stdout]     |
[INFO] [stdout] 419 |       &Ty::Interval { ref unit } => 64,
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:421:22
[INFO] [stdout]     |
[INFO] [stdout] 421 |       &Ty::Decimal { precision, scale } => 16 * 8,
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:421:33
[INFO] [stdout]     |
[INFO] [stdout] 421 |       &Ty::Decimal { precision, scale } => 16 * 8,
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:423:41
[INFO] [stdout]     |
[INFO] [stdout] 423 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => index_type.bit_width(),
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:423:57
[INFO] [stdout]     |
[INFO] [stdout] 423 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => index_type.bit_width(),
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:452:21
[INFO] [stdout]     |
[INFO] [stdout] 452 |       &Ty::Date32 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 32)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:453:21
[INFO] [stdout]     |
[INFO] [stdout] 453 |       &Ty::Date64 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:455:24
[INFO] [stdout]     |
[INFO] [stdout] 455 |       &Ty::Timestamp { ref unit, ref timezone } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                        ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:455:34
[INFO] [stdout]     |
[INFO] [stdout] 455 |       &Ty::Timestamp { ref unit, ref timezone } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:456:21
[INFO] [stdout]     |
[INFO] [stdout] 456 |       &Ty::Time32 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 32)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:457:21
[INFO] [stdout]     |
[INFO] [stdout] 457 |       &Ty::Time64 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:458:23
[INFO] [stdout]     |
[INFO] [stdout] 458 |       &Ty::Interval { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:460:22
[INFO] [stdout]     |
[INFO] [stdout] 460 |       &Ty::Decimal { precision, scale } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 16 * 8)],
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:460:33
[INFO] [stdout]     |
[INFO] [stdout] 460 |       &Ty::Decimal { precision, scale } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 16 * 8)],
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_type`
[INFO] [stdout]    --> src/common/ty.rs:462:19
[INFO] [stdout]     |
[INFO] [stdout] 462 |       &Ty::List { ref value_type } => vec![BufferDesc::validity_buffer(), BufferDesc::offset_buffer()],
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ help: try ignoring the field: `value_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:463:21
[INFO] [stdout]     |
[INFO] [stdout] 463 |       &Ty::Struct { ref fields } => vec![BufferDesc::validity_buffer()],
[INFO] [stdout]     |                     ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:464:20
[INFO] [stdout]     |
[INFO] [stdout] 464 |       &Ty::Union { ref fields, ref type_codes, ref mode } => {
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:464:32
[INFO] [stdout]     |
[INFO] [stdout] 464 |       &Ty::Union { ref fields, ref type_codes, ref mode } => {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:470:25
[INFO] [stdout]     |
[INFO] [stdout] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data...
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:470:41
[INFO] [stdout]     |
[INFO] [stdout] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data...
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:470:57
[INFO] [stdout]     |
[INFO] [stdout] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data...
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte_width`
[INFO] [stdout]    --> src/common/ty.rs:491:30
[INFO] [stdout]     |
[INFO] [stdout] 491 |       &Ty::FixedSizeBinary { byte_width } => "fixed_size_binary",
[INFO] [stdout]     |                              ^^^^^^^^^^ help: try ignoring the field: `byte_width: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:492:21
[INFO] [stdout]     |
[INFO] [stdout] 492 |       &Ty::Date32 { ref unit } => "date32",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:493:21
[INFO] [stdout]     |
[INFO] [stdout] 493 |       &Ty::Date64 { ref unit } => "date64",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:494:24
[INFO] [stdout]     |
[INFO] [stdout] 494 |       &Ty::Timestamp { ref unit, ref timezone } => "timestamp",
[INFO] [stdout]     |                        ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:494:34
[INFO] [stdout]     |
[INFO] [stdout] 494 |       &Ty::Timestamp { ref unit, ref timezone } => "timestamp",
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:495:21
[INFO] [stdout]     |
[INFO] [stdout] 495 |       &Ty::Time32 { ref unit } => "time32",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:496:21
[INFO] [stdout]     |
[INFO] [stdout] 496 |       &Ty::Time64 { ref unit } => "time64",
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]    --> src/common/ty.rs:497:23
[INFO] [stdout]     |
[INFO] [stdout] 497 |       &Ty::Interval { ref unit } => "interval",
[INFO] [stdout]     |                       ^^^^^^^^ help: try ignoring the field: `unit: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:498:22
[INFO] [stdout]     |
[INFO] [stdout] 498 |       &Ty::Decimal { precision, scale } => "decimal",
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:498:33
[INFO] [stdout]     |
[INFO] [stdout] 498 |       &Ty::Decimal { precision, scale } => "decimal",
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_type`
[INFO] [stdout]    --> src/common/ty.rs:499:19
[INFO] [stdout]     |
[INFO] [stdout] 499 |       &Ty::List { ref value_type } => "list",
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ help: try ignoring the field: `value_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:500:21
[INFO] [stdout]     |
[INFO] [stdout] 500 |       &Ty::Struct { ref fields } => "struct",
[INFO] [stdout]     |                     ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:501:20
[INFO] [stdout]     |
[INFO] [stdout] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:501:32
[INFO] [stdout]     |
[INFO] [stdout] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:501:48
[INFO] [stdout]     |
[INFO] [stdout] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:502:25
[INFO] [stdout]     |
[INFO] [stdout] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:502:41
[INFO] [stdout]     |
[INFO] [stdout] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:502:57
[INFO] [stdout]     |
[INFO] [stdout] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:555:32
[INFO] [stdout]     |
[INFO] [stdout] 555 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields[i],
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:555:48
[INFO] [stdout]     |
[INFO] [stdout] 555 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields[i],
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:563:32
[INFO] [stdout]     |
[INFO] [stdout] 563 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:563:48
[INFO] [stdout]     |
[INFO] [stdout] 563 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields,
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:571:32
[INFO] [stdout]     |
[INFO] [stdout] 571 |       &Ty::Union { ref fields, ref type_codes, ref mode } => fields.len() as i32,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:571:48
[INFO] [stdout]     |
[INFO] [stdout] 571 |       &Ty::Union { ref fields, ref type_codes, ref mode } => fields.len() as i32,
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timezone`
[INFO] [stdout]    --> src/common/ty.rs:586:34
[INFO] [stdout]     |
[INFO] [stdout] 586 |       &Ty::Timestamp { ref unit, ref timezone } => unit,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: try ignoring the field: `timezone: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scale`
[INFO] [stdout]    --> src/common/ty.rs:602:33
[INFO] [stdout]     |
[INFO] [stdout] 602 |       &Ty::Decimal { precision, scale } => precision,
[INFO] [stdout]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision`
[INFO] [stdout]    --> src/common/ty.rs:609:22
[INFO] [stdout]     |
[INFO] [stdout] 609 |       &Ty::Decimal { precision, scale } => scale,
[INFO] [stdout]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:623:20
[INFO] [stdout]     |
[INFO] [stdout] 623 |       &Ty::Union { ref fields, ref type_codes, ref mode } => type_codes,
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/common/ty.rs:623:48
[INFO] [stdout]     |
[INFO] [stdout] 623 |       &Ty::Union { ref fields, ref type_codes, ref mode } => type_codes,
[INFO] [stdout]     |                                                ^^^^^^^^ help: try ignoring the field: `mode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/common/ty.rs:630:20
[INFO] [stdout]     |
[INFO] [stdout] 630 |       &Ty::Union { ref fields, ref type_codes, ref mode } => mode,
[INFO] [stdout]     |                    ^^^^^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_codes`
[INFO] [stdout]    --> src/common/ty.rs:630:32
[INFO] [stdout]     |
[INFO] [stdout] 630 |       &Ty::Union { ref fields, ref type_codes, ref mode } => mode,
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ help: try ignoring the field: `type_codes: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:637:41
[INFO] [stdout]     |
[INFO] [stdout] 637 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &index_type,
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:637:57
[INFO] [stdout]     |
[INFO] [stdout] 637 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &index_type,
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:644:25
[INFO] [stdout]     |
[INFO] [stdout] 644 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &dictionary,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ordered`
[INFO] [stdout]    --> src/common/ty.rs:644:57
[INFO] [stdout]     |
[INFO] [stdout] 644 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &dictionary,
[INFO] [stdout]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_type`
[INFO] [stdout]    --> src/common/ty.rs:651:25
[INFO] [stdout]     |
[INFO] [stdout] 651 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => ordered,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^ help: try ignoring the field: `index_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dictionary`
[INFO] [stdout]    --> src/common/ty.rs:651:41
[INFO] [stdout]     |
[INFO] [stdout] 651 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => ordered,
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: try ignoring the field: `dictionary: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/common/bit_util.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |     let mut data = buffer.data_as_mut();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/common/mod.rs:367:9
[INFO] [stdout]     |
[INFO] [stdout] 367 |     let null_bitmap = PoolBuffer::new(pool);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_null_bitmap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/common/mod.rs:409:9
[INFO] [stdout]     |
[INFO] [stdout] 409 |     let null_bitmap = PoolBuffer::new(pool);
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_null_bitmap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:151:28
[INFO] [stdout]     |
[INFO] [stdout] 151 |       &BuilderData::Bool { ref null_bitmap, ref data } => ArrayData::Bool,
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/array.rs:151:45
[INFO] [stdout]     |
[INFO] [stdout] 151 |       &BuilderData::Bool { ref null_bitmap, ref data } => ArrayData::Bool,
[INFO] [stdout]     |                                             ^^^^^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:152:29
[INFO] [stdout]     |
[INFO] [stdout] 152 |       &BuilderData::UInt8 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:157:28
[INFO] [stdout]     |
[INFO] [stdout] 157 |       &BuilderData::Int8 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:162:30
[INFO] [stdout]     |
[INFO] [stdout] 162 |       &BuilderData::UInt16 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:167:29
[INFO] [stdout]     |
[INFO] [stdout] 167 |       &BuilderData::Int16 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:172:30
[INFO] [stdout]     |
[INFO] [stdout] 172 |       &BuilderData::UInt32 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:177:29
[INFO] [stdout]     |
[INFO] [stdout] 177 |       &BuilderData::Int32 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:182:30
[INFO] [stdout]     |
[INFO] [stdout] 182 |       &BuilderData::UInt64 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:187:29
[INFO] [stdout]     |
[INFO] [stdout] 187 |       &BuilderData::Int64 { ref null_bitmap, ref data } => {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:192:30
[INFO] [stdout]     |
[INFO] [stdout] 192 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/array.rs:264:17
[INFO] [stdout]     |
[INFO] [stdout] 264 |   fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/array.rs:302:28
[INFO] [stdout]     |
[INFO] [stdout] 302 |       &BuilderData::Bool { ref null_bitmap, ref data } => bit_util::get_bit(data.data(), i),
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_offsets`
[INFO] [stdout]    --> src/array.rs:631:25
[INFO] [stdout]     |
[INFO] [stdout] 631 |       ArrayData::List { ref value_offsets, ref value_array } => value_array,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ help: try ignoring the field: `value_offsets: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/memory_pool.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |     for i in 0..100 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/buffer.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     unsafe { mem::forget(self.page) }
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/buffer.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     unsafe { mem::forget(self.page) }
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `byte_width`
[INFO] [stdout]   --> src/builder.rs:73:29
[INFO] [stdout]    |
[INFO] [stdout] 73 |       Ty::FixedSizeBinary { byte_width } => BuilderData::FixedSizeBinary { null_bitmap, data },
[INFO] [stdout]    |                             ^^^^^^^^^^ help: try ignoring the field: `byte_width: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/builder.rs:465:53
[INFO] [stdout]     |
[INFO] [stdout] 465 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^
[INFO] [stdout] 466 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^
[INFO] [stdout] 467 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 468 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 469 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout] 470 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 471 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout] 472 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 473 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 465 ~       &mut BuilderData::Bool { ref mut null_bitmap, data: _ }   |
[INFO] [stdout] 466 ~       &mut BuilderData::Int8 { ref mut null_bitmap, data: _ }   |
[INFO] [stdout] 467 ~       &mut BuilderData::UInt8 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 468 ~       &mut BuilderData::Int16 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 469 ~       &mut BuilderData::UInt16 { ref mut null_bitmap, data: _ } |
[INFO] [stdout] 470 ~       &mut BuilderData::Int32 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 471 ~       &mut BuilderData::UInt32 { ref mut null_bitmap, data: _ } |
[INFO] [stdout] 472 ~       &mut BuilderData::Int64 { ref mut null_bitmap, data: _ }  |
[INFO] [stdout] 473 ~       &mut BuilderData::UInt64 { ref mut null_bitmap, data: _ } => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lengths_and_data`
[INFO] [stdout]    --> src/builder.rs:481:55
[INFO] [stdout]     |
[INFO] [stdout] 481 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `lengths_and_data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:481:81
[INFO] [stdout]     |
[INFO] [stdout] 481 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:496:32
[INFO] [stdout]     |
[INFO] [stdout] 496 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 497 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 498 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 499 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 500 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 501 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 502 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 503 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 504 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 496 ~       &mut BuilderData::Bool { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 497 ~       &mut BuilderData::Int8 { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 498 ~       &mut BuilderData::UInt8 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 499 ~       &mut BuilderData::Int16 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 500 ~       &mut BuilderData::UInt16 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 501 ~       &mut BuilderData::Int32 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 502 ~       &mut BuilderData::UInt32 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 503 ~       &mut BuilderData::Int64 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 504 ~       &mut BuilderData::UInt64 { null_bitmap: _, ref mut data } => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:512:34
[INFO] [stdout]     |
[INFO] [stdout] 512 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:512:81
[INFO] [stdout]     |
[INFO] [stdout] 512 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:527:32
[INFO] [stdout]     |
[INFO] [stdout] 527 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 528 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 529 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 530 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 531 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 532 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 533 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 534 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 535 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 527 ~       &mut BuilderData::Bool { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 528 ~       &mut BuilderData::Int8 { null_bitmap: _, ref mut data }   |
[INFO] [stdout] 529 ~       &mut BuilderData::UInt8 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 530 ~       &mut BuilderData::Int16 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 531 ~       &mut BuilderData::UInt16 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 532 ~       &mut BuilderData::Int32 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 533 ~       &mut BuilderData::UInt32 { null_bitmap: _, ref mut data } |
[INFO] [stdout] 534 ~       &mut BuilderData::Int64 { null_bitmap: _, ref mut data }  |
[INFO] [stdout] 535 ~       &mut BuilderData::UInt64 { null_bitmap: _, ref mut data } => {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `null_bitmap`
[INFO] [stdout]    --> src/builder.rs:542:34
[INFO] [stdout]     |
[INFO] [stdout] 542 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `null_bitmap: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:542:81
[INFO] [stdout]     |
[INFO] [stdout] 542 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/builder.rs:555:45
[INFO] [stdout]     |
[INFO] [stdout] 555 |       &BuilderData::Bool { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                             ^^^^^^^^
[INFO] [stdout] 556 |       &BuilderData::Int8 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                             ^^^^^^^^
[INFO] [stdout] 557 |       &BuilderData::UInt8 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 558 |       &BuilderData::Int16 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 559 |       &BuilderData::UInt16 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout] 560 |       &BuilderData::Int32 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 561 |       &BuilderData::UInt32 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout] 562 |       &BuilderData::Int64 { ref null_bitmap, ref data } |
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout] 563 |       &BuilderData::UInt64 { ref null_bitmap, ref data } => Some(null_bitmap),
[INFO] [stdout]     |                                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: try ignoring the field
[INFO] [stdout]     |
[INFO] [stdout] 555 ~       &BuilderData::Bool { ref null_bitmap, data: _ } |
[INFO] [stdout] 556 ~       &BuilderData::Int8 { ref null_bitmap, data: _ } |
[INFO] [stdout] 557 ~       &BuilderData::UInt8 { ref null_bitmap, data: _ } |
[INFO] [stdout] 558 ~       &BuilderData::Int16 { ref null_bitmap, data: _ } |
[INFO] [stdout] 559 ~       &BuilderData::UInt16 { ref null_bitmap, data: _ } |
[INFO] [stdout] 560 ~       &BuilderData::Int32 { ref null_bitmap, data: _ } |
[INFO] [stdout] 561 ~       &BuilderData::UInt32 { ref null_bitmap, data: _ } |
[INFO] [stdout] 562 ~       &BuilderData::Int64 { ref null_bitmap, data: _ } |
[INFO] [stdout] 563 ~       &BuilderData::UInt64 { ref null_bitmap, data: _ } => Some(null_bitmap),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lengths_and_data`
[INFO] [stdout]    --> src/builder.rs:564:47
[INFO] [stdout]     |
[INFO] [stdout] 564 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => Some(null_bitmap),
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `lengths_and_data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur_offset`
[INFO] [stdout]    --> src/builder.rs:564:69
[INFO] [stdout]     |
[INFO] [stdout] 564 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => Some(null_bitmap),
[INFO] [stdout]     |                                                                     ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:600:9
[INFO] [stdout]     |
[INFO] [stdout] 600 |     for i in 0..100 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:624:9
[INFO] [stdout]     |
[INFO] [stdout] 624 |     for i in 0..100 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 684 |   test_primitive_type_builder!(test_i8_builder, Ty::Int8, i8, 128);
[INFO] [stdout]     |   ---------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 685 |   test_primitive_type_builder!(test_u8_builder, Ty::UInt8, u8, 128);
[INFO] [stdout]     |   ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 686 |   test_primitive_type_builder!(test_i16_builder, Ty::Int16, i16, 128);
[INFO] [stdout]     |   ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 687 |   test_primitive_type_builder!(test_u16_builder, Ty::UInt16, u16, 128);
[INFO] [stdout]     |   -------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 688 |   test_primitive_type_builder!(test_i32_builder, Ty::Int32, i32, 128);
[INFO] [stdout]     |   ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 689 |   test_primitive_type_builder!(test_u32_builder, Ty::UInt32, u32, 128);
[INFO] [stdout]     |   -------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 690 |   test_primitive_type_builder!(test_i64_builder, Ty::Int64, i64, 128);
[INFO] [stdout]     |   ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:658:15
[INFO] [stdout]     |
[INFO] [stdout] 658 |           for i in 0..100 {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] ...
[INFO] [stdout] 691 |   test_primitive_type_builder!(test_u64_builder, Ty::UInt64, u64, 128);
[INFO] [stdout]     |   -------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `test_primitive_type_builder` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/builder.rs:708:9
[INFO] [stdout]     |
[INFO] [stdout] 708 |     for i in 0..100 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]   --> src/lib.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut buffer = PoolBuffer::new(Arc::new(RefCell::new(DefaultMemoryPool::new())));
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut buffer = PoolBuffer::new(Arc::new(RefCell::new(DefaultMemoryPool::new())));
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 166 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iron-arrow` (lib test) due to 3 previous errors; 166 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8a979401f0782067d03d9cfbf8dbd1da9f9ef5cb93389c66ebdcc313dfca3c63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a979401f0782067d03d9cfbf8dbd1da9f9ef5cb93389c66ebdcc313dfca3c63", kill_on_drop: false }`
[INFO] [stdout] 8a979401f0782067d03d9cfbf8dbd1da9f9ef5cb93389c66ebdcc313dfca3c63
