[INFO] crate iron-arrow 0.1.0 is already in cache
[INFO] checking iron-arrow-0.1.0 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate iron-arrow 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate iron-arrow 0.1.0 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-11/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1f19d2fda4d5ec818cd8f7259b247b88dea74dc3613af1b98c7ea6a944125494
[INFO] running `"docker" "start" "-a" "1f19d2fda4d5ec818cd8f7259b247b88dea74dc3613af1b98c7ea6a944125494"`
[INFO] [stderr]     Checking iron-arrow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::ops::Index`
[INFO] [stderr]  --> src/common/ty.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::Index;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `common::status::ArrowError`
[INFO] [stderr]  --> src/common/ty.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use common::status::ArrowError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `array`
[INFO] [stderr]  --> src/common/ty.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use array;
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/common/ty.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]   --> src/common/ty.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::mem;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Error`, `Formatter`
[INFO] [stderr]   --> src/common/ty.rs:11:23
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stderr]    |                       ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr`
[INFO] [stderr]  --> src/common/bit_util.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ptr;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `array::Array`
[INFO] [stderr]  --> src/common/field.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use array::Array;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Error`, `Formatter`
[INFO] [stderr]  --> src/common/field.rs:5:23
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stderr]   |                       ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `common::status::ArrowError`
[INFO] [stderr]  --> src/array.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use common::status::ArrowError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `common::ty`
[INFO] [stderr]  --> src/array.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use common::ty;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stderr]  --> src/array.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use memory_pool::MemoryPool;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr`
[INFO] [stderr]  --> src/array.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::ptr;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Index`
[INFO] [stderr]  --> src/common/ty.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::Index;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `common::status::ArrowError`
[INFO] [stderr]  --> src/common/ty.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use common::status::ArrowError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `array`
[INFO] [stderr]  --> src/common/ty.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use array;
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/common/ty.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]   --> src/common/ty.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::mem;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Error`, `Formatter`
[INFO] [stderr]   --> src/common/ty.rs:11:23
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stderr]    |                       ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `ptr` is imported redundantly
[INFO] [stderr]    --> src/array.rs:284:13
[INFO] [stderr]     |
[INFO] [stderr] 9   | use std::ptr;
[INFO] [stderr]     |     -------- the item `ptr` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 284 |         use std::ptr;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr`
[INFO] [stderr]    --> src/array.rs:284:13
[INFO] [stderr]     |
[INFO] [stderr] 284 |         use std::ptr;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `libc` is imported redundantly
[INFO] [stderr]    --> src/array.rs:437:15
[INFO] [stderr]     |
[INFO] [stderr] 437 |           use libc;
[INFO] [stderr]     |               ^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | extern crate libc;
[INFO] [stderr]     | ------------------ the item `libc` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/array.rs:649:25
[INFO] [stderr]     |
[INFO] [stderr] 649 |   fn as_bool(&self) -> &ArrowSlice<bool> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArrowSlice<bool>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/array.rs:653:25
[INFO] [stderr]     |
[INFO] [stderr] 653 |   fn as_int8(&self) -> &ArrowSlice<i8> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArrowSlice<i8>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `StatusCode`
[INFO] [stderr]  --> src/memory_pool.rs:1:34
[INFO] [stderr]   |
[INFO] [stderr] 1 | use common::status::{ArrowError, StatusCode};
[INFO] [stderr]   |                                  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Arc`
[INFO] [stderr]  --> src/memory_pool.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::sync::{Arc, Mutex};
[INFO] [stderr]   |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr`
[INFO] [stderr]  --> src/common/bit_util.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ptr;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]    --> src/common/bit_util.rs:217:9
[INFO] [stderr]     |
[INFO] [stderr] 217 |     use rand;
[INFO] [stderr]     |         ^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | extern crate rand;
[INFO] [stderr]     | ------------------ the item `rand` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `array::Array`
[INFO] [stderr]  --> src/common/field.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use array::Array;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Error`, `Formatter`
[INFO] [stderr]  --> src/common/field.rs:5:23
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stderr]   |                       ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]    --> src/common/mod.rs:263:9
[INFO] [stderr]     |
[INFO] [stderr] 263 |     use std;
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `common::status::ArrowError`
[INFO] [stderr]  --> src/array.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use common::status::ArrowError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `common::ty`
[INFO] [stderr]  --> src/array.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use common::ty;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stderr]  --> src/array.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use memory_pool::MemoryPool;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr`
[INFO] [stderr]  --> src/array.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::ptr;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `ptr` is imported redundantly
[INFO] [stderr]    --> src/array.rs:284:13
[INFO] [stderr]     |
[INFO] [stderr] 9   | use std::ptr;
[INFO] [stderr]     |     -------- the item `ptr` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 284 |         use std::ptr;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr`
[INFO] [stderr]    --> src/array.rs:284:13
[INFO] [stderr]     |
[INFO] [stderr] 284 |         use std::ptr;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `libc` is imported redundantly
[INFO] [stderr]    --> src/array.rs:437:15
[INFO] [stderr]     |
[INFO] [stderr] 437 |           use libc;
[INFO] [stderr]     |               ^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | extern crate libc;
[INFO] [stderr]     | ------------------ the item `libc` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/array.rs:649:25
[INFO] [stderr]     |
[INFO] [stderr] 649 |   fn as_bool(&self) -> &ArrowSlice<bool> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArrowSlice<bool>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/array.rs:653:25
[INFO] [stderr]     |
[INFO] [stderr] 653 |   fn as_int8(&self) -> &ArrowSlice<i8> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ArrowSlice<i8>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `StatusCode`
[INFO] [stderr]  --> src/memory_pool.rs:1:34
[INFO] [stderr]   |
[INFO] [stderr] 1 | use common::status::{ArrowError, StatusCode};
[INFO] [stderr]   |                                  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Arc`
[INFO] [stderr]  --> src/memory_pool.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::sync::{Arc, Mutex};
[INFO] [stderr]   |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::Num`
[INFO] [stderr]   --> src/buffer.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use num::Num;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:19:31
[INFO] [stderr]    |
[INFO] [stderr] 19 |   fn parent(&self) -> Option<&Buffer>;
[INFO] [stderr]    |                               ^^^^^^ help: use `dyn`: `dyn Buffer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:32:34
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn resize(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64), ArrowError> {
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:58:35
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn reserve(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stderr]    |                                   ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:80:21
[INFO] [stderr]    |
[INFO] [stderr] 80 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stderr]    |                     ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:88:32
[INFO] [stderr]    |
[INFO] [stderr] 88 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> PoolBuffer {
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:98:33
[INFO] [stderr]    |
[INFO] [stderr] 98 |   pub fn from(pool: Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stderr]    |                                 ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/buffer.rs:116:35
[INFO] [stderr]     |
[INFO] [stderr] 116 |   pub fn parent(&self) -> Option<&Buffer> {
[INFO] [stderr]     |                                   ^^^^^^ help: use `dyn`: `dyn Buffer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/buffer.rs:229:21
[INFO] [stderr]     |
[INFO] [stderr] 229 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stderr]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/buffer.rs:236:32
[INFO] [stderr]     |
[INFO] [stderr] 236 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> BufferBuilder {
[INFO] [stderr]     |                                ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `common::ty`
[INFO] [stderr]  --> src/builder.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use common::ty;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stderr]  --> src/builder.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use memory_pool::MemoryPool;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Array`
[INFO] [stderr]  --> src/builder.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 | use array::{Array, Blob};
[INFO] [stderr]   |             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr`
[INFO] [stderr]  --> src/builder.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::ptr;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `libc` is imported redundantly
[INFO] [stderr]    --> src/builder.rs:326:19
[INFO] [stderr]     |
[INFO] [stderr] 326 |               use libc;
[INFO] [stderr]     |                   ^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | extern crate libc;
[INFO] [stderr]     | ------------------ the item `libc` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libc`
[INFO] [stderr]    --> src/builder.rs:326:19
[INFO] [stderr]     |
[INFO] [stderr] 326 |               use libc;
[INFO] [stderr]     |                   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `MutableBuffer`, `ResizableBuffer`
[INFO] [stderr]    --> src/builder.rs:589:28
[INFO] [stderr]     |
[INFO] [stderr] 589 |   use buffer::{PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `common::status::ArrowError`
[INFO] [stderr]   --> src/lib.rs:21:7
[INFO] [stderr]    |
[INFO] [stderr] 21 |   use common::status::ArrowError;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `MemoryPool`
[INFO] [stderr]   --> src/lib.rs:22:40
[INFO] [stderr]    |
[INFO] [stderr] 22 |   use memory_pool::{DefaultMemoryPool, MemoryPool};
[INFO] [stderr]    |                                        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `MutableBuffer`
[INFO] [stderr]   --> src/lib.rs:32:26
[INFO] [stderr]    |
[INFO] [stderr] 32 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer};
[INFO] [stderr]    |                          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `MutableBuffer`, `PoolBuffer`, `ResizableBuffer`
[INFO] [stderr]   --> src/lib.rs:46:26
[INFO] [stderr]    |
[INFO] [stderr] 46 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer, BufferBuilder, TypedBufferBuilder};
[INFO] [stderr]    |                          ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::Num`
[INFO] [stderr]   --> src/buffer.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use num::Num;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:19:31
[INFO] [stderr]    |
[INFO] [stderr] 19 |   fn parent(&self) -> Option<&Buffer>;
[INFO] [stderr]    |                               ^^^^^^ help: use `dyn`: `dyn Buffer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:32:34
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn resize(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64), ArrowError> {
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:58:35
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn reserve(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stderr]    |                                   ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:80:21
[INFO] [stderr]    |
[INFO] [stderr] 80 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stderr]    |                     ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:88:32
[INFO] [stderr]    |
[INFO] [stderr] 88 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> PoolBuffer {
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:98:33
[INFO] [stderr]    |
[INFO] [stderr] 98 |   pub fn from(pool: Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stderr]    |                                 ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/buffer.rs:116:35
[INFO] [stderr]     |
[INFO] [stderr] 116 |   pub fn parent(&self) -> Option<&Buffer> {
[INFO] [stderr]     |                                   ^^^^^^ help: use `dyn`: `dyn Buffer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/buffer.rs:229:21
[INFO] [stderr]     |
[INFO] [stderr] 229 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stderr]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/buffer.rs:236:32
[INFO] [stderr]     |
[INFO] [stderr] 236 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> BufferBuilder {
[INFO] [stderr]     |                                ^^^^^^^^^^ help: use `dyn`: `dyn MemoryPool`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `common::ty`
[INFO] [stderr]  --> src/builder.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use common::ty;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stderr]  --> src/builder.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use memory_pool::MemoryPool;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Array`
[INFO] [stderr]  --> src/builder.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 | use array::{Array, Blob};
[INFO] [stderr]   |             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr`
[INFO] [stderr]  --> src/builder.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::ptr;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `libc` is imported redundantly
[INFO] [stderr]    --> src/builder.rs:326:19
[INFO] [stderr]     |
[INFO] [stderr] 326 |               use libc;
[INFO] [stderr]     |                   ^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | extern crate libc;
[INFO] [stderr]     | ------------------ the item `libc` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libc`
[INFO] [stderr]    --> src/builder.rs:326:19
[INFO] [stderr]     |
[INFO] [stderr] 326 |               use libc;
[INFO] [stderr]     |                   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/memory_pool.rs:120:39
[INFO] [stderr]     |
[INFO] [stderr] 120 |     let mut page: *mut libc::c_void = mem::uninitialized();
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/buffer.rs:43:22
[INFO] [stderr]    |
[INFO] [stderr] 43 |         Ok((unsafe { mem::uninitialized() }, 0, 0))
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/buffer.rs:91:22
[INFO] [stderr]    |
[INFO] [stderr] 91 |       page: unsafe { mem::uninitialized() },
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/buffer.rs:239:22
[INFO] [stderr]     |
[INFO] [stderr] 239 |       page: unsafe { mem::uninitialized() },
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/memory_pool.rs:120:39
[INFO] [stderr]     |
[INFO] [stderr] 120 |     let mut page: *mut libc::c_void = mem::uninitialized();
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/buffer.rs:43:22
[INFO] [stderr]    |
[INFO] [stderr] 43 |         Ok((unsafe { mem::uninitialized() }, 0, 0))
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/buffer.rs:91:22
[INFO] [stderr]    |
[INFO] [stderr] 91 |       page: unsafe { mem::uninitialized() },
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/buffer.rs:239:22
[INFO] [stderr]     |
[INFO] [stderr] 239 |       page: unsafe { mem::uninitialized() },
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Buffer`
[INFO] [stderr]  --> src/array.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 | use buffer::{Buffer, PoolBuffer};
[INFO] [stderr]   |              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Buffer`
[INFO] [stderr]  --> src/builder.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 | use buffer::{Buffer, PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stderr]   |              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:413:25
[INFO] [stderr]     |
[INFO] [stderr] 413 |       &Ty::Date32 { ref unit } => 32,
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:414:25
[INFO] [stderr]     |
[INFO] [stderr] 414 |       &Ty::Date64 { ref unit } => 64,
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:416:28
[INFO] [stderr]     |
[INFO] [stderr] 416 |       &Ty::Timestamp { ref unit, ref timezone } => 64,
[INFO] [stderr]     |                        ----^^^^
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timezone`
[INFO] [stderr]    --> src/common/ty.rs:416:38
[INFO] [stderr]     |
[INFO] [stderr] 416 |       &Ty::Timestamp { ref unit, ref timezone } => 64,
[INFO] [stderr]     |                                  ----^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: try ignoring the field: `timezone: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:417:25
[INFO] [stderr]     |
[INFO] [stderr] 417 |       &Ty::Time32 { ref unit } => 32,
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:418:25
[INFO] [stderr]     |
[INFO] [stderr] 418 |       &Ty::Time64 { ref unit } => 64,
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:419:27
[INFO] [stderr]     |
[INFO] [stderr] 419 |       &Ty::Interval { ref unit } => 64,
[INFO] [stderr]     |                       ----^^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `precision`
[INFO] [stderr]    --> src/common/ty.rs:421:22
[INFO] [stderr]     |
[INFO] [stderr] 421 |       &Ty::Decimal { precision, scale } => 16 * 8,
[INFO] [stderr]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scale`
[INFO] [stderr]    --> src/common/ty.rs:421:33
[INFO] [stderr]     |
[INFO] [stderr] 421 |       &Ty::Decimal { precision, scale } => 16 * 8,
[INFO] [stderr]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dictionary`
[INFO] [stderr]    --> src/common/ty.rs:423:45
[INFO] [stderr]     |
[INFO] [stderr] 423 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => index_type.bit_width(),
[INFO] [stderr]     |                                         ----^^^^^^^^^^
[INFO] [stderr]     |                                         |
[INFO] [stderr]     |                                         help: try ignoring the field: `dictionary: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ordered`
[INFO] [stderr]    --> src/common/ty.rs:423:57
[INFO] [stderr]     |
[INFO] [stderr] 423 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => index_type.bit_width(),
[INFO] [stderr]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:452:25
[INFO] [stderr]     |
[INFO] [stderr] 452 |       &Ty::Date32 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 32)],
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:453:25
[INFO] [stderr]     |
[INFO] [stderr] 453 |       &Ty::Date64 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:455:28
[INFO] [stderr]     |
[INFO] [stderr] 455 |       &Ty::Timestamp { ref unit, ref timezone } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stderr]     |                        ----^^^^
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timezone`
[INFO] [stderr]    --> src/common/ty.rs:455:38
[INFO] [stderr]     |
[INFO] [stderr] 455 |       &Ty::Timestamp { ref unit, ref timezone } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stderr]     |                                  ----^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: try ignoring the field: `timezone: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:456:25
[INFO] [stderr]     |
[INFO] [stderr] 456 |       &Ty::Time32 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 32)],
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:457:25
[INFO] [stderr]     |
[INFO] [stderr] 457 |       &Ty::Time64 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:458:27
[INFO] [stderr]     |
[INFO] [stderr] 458 |       &Ty::Interval { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stderr]     |                       ----^^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `precision`
[INFO] [stderr]    --> src/common/ty.rs:460:22
[INFO] [stderr]     |
[INFO] [stderr] 460 |       &Ty::Decimal { precision, scale } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 16 * 8)],
[INFO] [stderr]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scale`
[INFO] [stderr]    --> src/common/ty.rs:460:33
[INFO] [stderr]     |
[INFO] [stderr] 460 |       &Ty::Decimal { precision, scale } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 16 * 8)],
[INFO] [stderr]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value_type`
[INFO] [stderr]    --> src/common/ty.rs:462:23
[INFO] [stderr]     |
[INFO] [stderr] 462 |       &Ty::List { ref value_type } => vec![BufferDesc::validity_buffer(), BufferDesc::offset_buffer()],
[INFO] [stderr]     |                   ----^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: try ignoring the field: `value_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/common/ty.rs:463:25
[INFO] [stderr]     |
[INFO] [stderr] 463 |       &Ty::Struct { ref fields } => vec![BufferDesc::validity_buffer()],
[INFO] [stderr]     |                     ----^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `fields: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/common/ty.rs:464:24
[INFO] [stderr]     |
[INFO] [stderr] 464 |       &Ty::Union { ref fields, ref type_codes, ref mode } => {
[INFO] [stderr]     |                    ----^^^^^^
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    help: try ignoring the field: `fields: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_codes`
[INFO] [stderr]    --> src/common/ty.rs:464:36
[INFO] [stderr]     |
[INFO] [stderr] 464 |       &Ty::Union { ref fields, ref type_codes, ref mode } => {
[INFO] [stderr]     |                                ----^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                help: try ignoring the field: `type_codes: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index_type`
[INFO] [stderr]    --> src/common/ty.rs:470:29
[INFO] [stderr]     |
[INFO] [stderr] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, self.bit_width())]
[INFO] [stderr]     |                         ----^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: try ignoring the field: `index_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dictionary`
[INFO] [stderr]    --> src/common/ty.rs:470:45
[INFO] [stderr]     |
[INFO] [stderr] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, self.bit_width())]
[INFO] [stderr]     |                                         ----^^^^^^^^^^
[INFO] [stderr]     |                                         |
[INFO] [stderr]     |                                         help: try ignoring the field: `dictionary: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ordered`
[INFO] [stderr]    --> src/common/ty.rs:470:57
[INFO] [stderr]     |
[INFO] [stderr] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, self.bit_width())]
[INFO] [stderr]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `byte_width`
[INFO] [stderr]    --> src/common/ty.rs:491:30
[INFO] [stderr]     |
[INFO] [stderr] 491 |       &Ty::FixedSizeBinary { byte_width } => "fixed_size_binary",
[INFO] [stderr]     |                              ^^^^^^^^^^ help: try ignoring the field: `byte_width: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:492:25
[INFO] [stderr]     |
[INFO] [stderr] 492 |       &Ty::Date32 { ref unit } => "date32",
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:493:25
[INFO] [stderr]     |
[INFO] [stderr] 493 |       &Ty::Date64 { ref unit } => "date64",
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:494:28
[INFO] [stderr]     |
[INFO] [stderr] 494 |       &Ty::Timestamp { ref unit, ref timezone } => "timestamp",
[INFO] [stderr]     |                        ----^^^^
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timezone`
[INFO] [stderr]    --> src/common/ty.rs:494:38
[INFO] [stderr]     |
[INFO] [stderr] 494 |       &Ty::Timestamp { ref unit, ref timezone } => "timestamp",
[INFO] [stderr]     |                                  ----^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: try ignoring the field: `timezone: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:495:25
[INFO] [stderr]     |
[INFO] [stderr] 495 |       &Ty::Time32 { ref unit } => "time32",
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:496:25
[INFO] [stderr]     |
[INFO] [stderr] 496 |       &Ty::Time64 { ref unit } => "time64",
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:497:27
[INFO] [stderr]     |
[INFO] [stderr] 497 |       &Ty::Interval { ref unit } => "interval",
[INFO] [stderr]     |                       ----^^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `precision`
[INFO] [stderr]    --> src/common/ty.rs:498:22
[INFO] [stderr]     |
[INFO] [stderr] 498 |       &Ty::Decimal { precision, scale } => "decimal",
[INFO] [stderr]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scale`
[INFO] [stderr]    --> src/common/ty.rs:498:33
[INFO] [stderr]     |
[INFO] [stderr] 498 |       &Ty::Decimal { precision, scale } => "decimal",
[INFO] [stderr]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value_type`
[INFO] [stderr]    --> src/common/ty.rs:499:23
[INFO] [stderr]     |
[INFO] [stderr] 499 |       &Ty::List { ref value_type } => "list",
[INFO] [stderr]     |                   ----^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: try ignoring the field: `value_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/common/ty.rs:500:25
[INFO] [stderr]     |
[INFO] [stderr] 500 |       &Ty::Struct { ref fields } => "struct",
[INFO] [stderr]     |                     ----^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `fields: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/common/ty.rs:501:24
[INFO] [stderr]     |
[INFO] [stderr] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stderr]     |                    ----^^^^^^
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    help: try ignoring the field: `fields: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_codes`
[INFO] [stderr]    --> src/common/ty.rs:501:36
[INFO] [stderr]     |
[INFO] [stderr] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stderr]     |                                ----^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                help: try ignoring the field: `type_codes: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/common/ty.rs:501:52
[INFO] [stderr]     |
[INFO] [stderr] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stderr]     |                                                ----^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                help: try ignoring the field: `mode: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index_type`
[INFO] [stderr]    --> src/common/ty.rs:502:29
[INFO] [stderr]     |
[INFO] [stderr] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stderr]     |                         ----^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: try ignoring the field: `index_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dictionary`
[INFO] [stderr]    --> src/common/ty.rs:502:45
[INFO] [stderr]     |
[INFO] [stderr] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stderr]     |                                         ----^^^^^^^^^^
[INFO] [stderr]     |                                         |
[INFO] [stderr]     |                                         help: try ignoring the field: `dictionary: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ordered`
[INFO] [stderr]    --> src/common/ty.rs:502:57
[INFO] [stderr]     |
[INFO] [stderr] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stderr]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_codes`
[INFO] [stderr]    --> src/common/ty.rs:555:36
[INFO] [stderr]     |
[INFO] [stderr] 555 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields[i],
[INFO] [stderr]     |                                ----^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                help: try ignoring the field: `type_codes: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/common/ty.rs:555:52
[INFO] [stderr]     |
[INFO] [stderr] 555 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields[i],
[INFO] [stderr]     |                                                ----^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                help: try ignoring the field: `mode: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_codes`
[INFO] [stderr]    --> src/common/ty.rs:563:36
[INFO] [stderr]     |
[INFO] [stderr] 563 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields,
[INFO] [stderr]     |                                ----^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                help: try ignoring the field: `type_codes: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/common/ty.rs:563:52
[INFO] [stderr]     |
[INFO] [stderr] 563 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields,
[INFO] [stderr]     |                                                ----^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                help: try ignoring the field: `mode: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_codes`
[INFO] [stderr]    --> src/common/ty.rs:571:36
[INFO] [stderr]     |
[INFO] [stderr] 571 |       &Ty::Union { ref fields, ref type_codes, ref mode } => fields.len() as i32,
[INFO] [stderr]     |                                ----^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                help: try ignoring the field: `type_codes: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/common/ty.rs:571:52
[INFO] [stderr]     |
[INFO] [stderr] 571 |       &Ty::Union { ref fields, ref type_codes, ref mode } => fields.len() as i32,
[INFO] [stderr]     |                                                ----^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                help: try ignoring the field: `mode: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timezone`
[INFO] [stderr]    --> src/common/ty.rs:586:38
[INFO] [stderr]     |
[INFO] [stderr] 586 |       &Ty::Timestamp { ref unit, ref timezone } => unit,
[INFO] [stderr]     |                                  ----^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: try ignoring the field: `timezone: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scale`
[INFO] [stderr]    --> src/common/ty.rs:602:33
[INFO] [stderr]     |
[INFO] [stderr] 602 |       &Ty::Decimal { precision, scale } => precision,
[INFO] [stderr]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `precision`
[INFO] [stderr]    --> src/common/ty.rs:609:22
[INFO] [stderr]     |
[INFO] [stderr] 609 |       &Ty::Decimal { precision, scale } => scale,
[INFO] [stderr]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/common/ty.rs:623:24
[INFO] [stderr]     |
[INFO] [stderr] 623 |       &Ty::Union { ref fields, ref type_codes, ref mode } => type_codes,
[INFO] [stderr]     |                    ----^^^^^^
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    help: try ignoring the field: `fields: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/common/ty.rs:623:52
[INFO] [stderr]     |
[INFO] [stderr] 623 |       &Ty::Union { ref fields, ref type_codes, ref mode } => type_codes,
[INFO] [stderr]     |                                                ----^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                help: try ignoring the field: `mode: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/common/ty.rs:630:24
[INFO] [stderr]     |
[INFO] [stderr] 630 |       &Ty::Union { ref fields, ref type_codes, ref mode } => mode,
[INFO] [stderr]     |                    ----^^^^^^
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    help: try ignoring the field: `fields: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_codes`
[INFO] [stderr]    --> src/common/ty.rs:630:36
[INFO] [stderr]     |
[INFO] [stderr] 630 |       &Ty::Union { ref fields, ref type_codes, ref mode } => mode,
[INFO] [stderr]     |                                ----^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                help: try ignoring the field: `type_codes: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dictionary`
[INFO] [stderr]    --> src/common/ty.rs:637:45
[INFO] [stderr]     |
[INFO] [stderr] 637 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &index_type,
[INFO] [stderr]     |                                         ----^^^^^^^^^^
[INFO] [stderr]     |                                         |
[INFO] [stderr]     |                                         help: try ignoring the field: `dictionary: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ordered`
[INFO] [stderr]    --> src/common/ty.rs:637:57
[INFO] [stderr]     |
[INFO] [stderr] 637 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &index_type,
[INFO] [stderr]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index_type`
[INFO] [stderr]    --> src/common/ty.rs:644:29
[INFO] [stderr]     |
[INFO] [stderr] 644 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &dictionary,
[INFO] [stderr]     |                         ----^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: try ignoring the field: `index_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ordered`
[INFO] [stderr]    --> src/common/ty.rs:644:57
[INFO] [stderr]     |
[INFO] [stderr] 644 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &dictionary,
[INFO] [stderr]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index_type`
[INFO] [stderr]    --> src/common/ty.rs:651:29
[INFO] [stderr]     |
[INFO] [stderr] 651 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => ordered,
[INFO] [stderr]     |                         ----^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: try ignoring the field: `index_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dictionary`
[INFO] [stderr]    --> src/common/ty.rs:651:45
[INFO] [stderr]     |
[INFO] [stderr] 651 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => ordered,
[INFO] [stderr]     |                                         ----^^^^^^^^^^
[INFO] [stderr]     |                                         |
[INFO] [stderr]     |                                         help: try ignoring the field: `dictionary: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:151:32
[INFO] [stderr]     |
[INFO] [stderr] 151 |       &BuilderData::Bool { ref null_bitmap, ref data } => ArrayData::Bool,
[INFO] [stderr]     |                            ----^^^^^^^^^^^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/array.rs:151:49
[INFO] [stderr]     |
[INFO] [stderr] 151 |       &BuilderData::Bool { ref null_bitmap, ref data } => ArrayData::Bool,
[INFO] [stderr]     |                                             ----^^^^
[INFO] [stderr]     |                                             |
[INFO] [stderr]     |                                             help: try ignoring the field: `data: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:152:33
[INFO] [stderr]     |
[INFO] [stderr] 152 |       &BuilderData::UInt8 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                             ----^^^^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:157:32
[INFO] [stderr]     |
[INFO] [stderr] 157 |       &BuilderData::Int8 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                            ----^^^^^^^^^^^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:162:34
[INFO] [stderr]     |
[INFO] [stderr] 162 |       &BuilderData::UInt16 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                              ----^^^^^^^^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:167:33
[INFO] [stderr]     |
[INFO] [stderr] 167 |       &BuilderData::Int16 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                             ----^^^^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:172:34
[INFO] [stderr]     |
[INFO] [stderr] 172 |       &BuilderData::UInt32 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                              ----^^^^^^^^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:177:33
[INFO] [stderr]     |
[INFO] [stderr] 177 |       &BuilderData::Int32 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                             ----^^^^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:182:34
[INFO] [stderr]     |
[INFO] [stderr] 182 |       &BuilderData::UInt64 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                              ----^^^^^^^^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:187:33
[INFO] [stderr]     |
[INFO] [stderr] 187 |       &BuilderData::Int64 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                             ----^^^^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:192:34
[INFO] [stderr]     |
[INFO] [stderr] 192 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                              ----^^^^^^^^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/array.rs:264:17
[INFO] [stderr]     |
[INFO] [stderr] 264 |   fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:302:32
[INFO] [stderr]     |
[INFO] [stderr] 302 |       &BuilderData::Bool { ref null_bitmap, ref data } => bit_util::get_bit(data.data(), i),
[INFO] [stderr]     |                            ----^^^^^^^^^^^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value_offsets`
[INFO] [stderr]    --> src/array.rs:631:29
[INFO] [stderr]     |
[INFO] [stderr] 631 |       ArrayData::List { ref value_offsets, ref value_array } => value_array,
[INFO] [stderr]     |                         ----^^^^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: try ignoring the field: `value_offsets: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `byte_width`
[INFO] [stderr]   --> src/builder.rs:73:29
[INFO] [stderr]    |
[INFO] [stderr] 73 |       Ty::FixedSizeBinary { byte_width } => BuilderData::FixedSizeBinary { null_bitmap, data },
[INFO] [stderr]    |                             ^^^^^^^^^^ help: try ignoring the field: `byte_width: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/builder.rs:465:61
[INFO] [stderr]     |
[INFO] [stderr] 465 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stderr]     |                                                             ^^^^
[INFO] [stderr] 466 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stderr]     |                                                             ^^^^
[INFO] [stderr] 467 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                                              ^^^^
[INFO] [stderr] 468 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                                              ^^^^
[INFO] [stderr] 469 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stderr]     |                                                               ^^^^
[INFO] [stderr] 470 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                                              ^^^^
[INFO] [stderr] 471 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stderr]     |                                                               ^^^^
[INFO] [stderr] 472 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                                              ^^^^
[INFO] [stderr] 473 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stderr]     |                                                               ^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: try ignoring the field
[INFO] [stderr]     |
[INFO] [stderr] 465 |       &mut BuilderData::Bool { ref mut null_bitmap, data: _data: _data: _data: _data: _data: _data: _data: _data: _ }   |
[INFO] [stderr]     |                                                     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lengths_and_data`
[INFO] [stderr]    --> src/builder.rs:481:63
[INFO] [stderr]     |
[INFO] [stderr] 481 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                                                       --------^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                                       |
[INFO] [stderr]     |                                                       help: try ignoring the field: `lengths_and_data: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cur_offset`
[INFO] [stderr]    --> src/builder.rs:481:81
[INFO] [stderr]     |
[INFO] [stderr] 481 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/builder.rs:496:40
[INFO] [stderr]     |
[INFO] [stderr] 496 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 497 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 498 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 499 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 500 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 501 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 502 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 503 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 504 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: try ignoring the field
[INFO] [stderr]     |
[INFO] [stderr] 496 |       &mut BuilderData::Bool { null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _, ref mut data }   |
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/builder.rs:512:42
[INFO] [stderr]     |
[INFO] [stderr] 512 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                                  --------^^^^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cur_offset`
[INFO] [stderr]    --> src/builder.rs:512:81
[INFO] [stderr]     |
[INFO] [stderr] 512 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/builder.rs:527:40
[INFO] [stderr]     |
[INFO] [stderr] 527 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 528 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 529 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 530 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 531 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 532 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 533 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 534 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 535 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: try ignoring the field
[INFO] [stderr]     |
[INFO] [stderr] 527 |       &mut BuilderData::Bool { null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _, ref mut data }   |
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/builder.rs:542:42
[INFO] [stderr]     |
[INFO] [stderr] 542 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                                  --------^^^^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cur_offset`
[INFO] [stderr]    --> src/builder.rs:542:81
[INFO] [stderr]     |
[INFO] [stderr] 542 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/builder.rs:555:49
[INFO] [stderr]     |
[INFO] [stderr] 555 |       &BuilderData::Bool { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                 ^^^^
[INFO] [stderr] 556 |       &BuilderData::Int8 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                 ^^^^
[INFO] [stderr] 557 |       &BuilderData::UInt8 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                  ^^^^
[INFO] [stderr] 558 |       &BuilderData::Int16 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                  ^^^^
[INFO] [stderr] 559 |       &BuilderData::UInt16 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                   ^^^^
[INFO] [stderr] 560 |       &BuilderData::Int32 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                  ^^^^
[INFO] [stderr] 561 |       &BuilderData::UInt32 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                   ^^^^
[INFO] [stderr] 562 |       &BuilderData::Int64 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                  ^^^^
[INFO] [stderr] 563 |       &BuilderData::UInt64 { ref null_bitmap, ref data } => Some(null_bitmap),
[INFO] [stderr]     |                                                   ^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: try ignoring the field
[INFO] [stderr]     |
[INFO] [stderr] 555 |       &BuilderData::Bool { ref null_bitmap, data: _data: _data: _data: _data: _data: _data: _data: _data: _ } |
[INFO] [stderr]     |                                             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lengths_and_data`
[INFO] [stderr]    --> src/builder.rs:564:51
[INFO] [stderr]     |
[INFO] [stderr] 564 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => Some(null_bitmap),
[INFO] [stderr]     |                                               ----^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                               |
[INFO] [stderr]     |                                               help: try ignoring the field: `lengths_and_data: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cur_offset`
[INFO] [stderr]    --> src/builder.rs:564:69
[INFO] [stderr]     |
[INFO] [stderr] 564 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => Some(null_bitmap),
[INFO] [stderr]     |                                                                     ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/buffer.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     unsafe { mem::forget(self.page) }
[INFO] [stderr]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/buffer.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     unsafe { mem::forget(self.page) }
[INFO] [stderr]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ROUND_TO`
[INFO] [stderr]  --> src/common/bit_util.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const ROUND_TO: i64 = 64;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compute_null_count`
[INFO] [stderr]    --> src/array.rs:134:3
[INFO] [stderr]     |
[INFO] [stderr] 134 |   fn compute_null_count(null_bitmap: &Option<PoolBuffer>, offset: i64, length: i64) -> i64 {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `raw_value`
[INFO] [stderr]    --> src/array.rs:276:4
[INFO] [stderr]     |
[INFO] [stderr] 276 | fn raw_value<T: Copy>(values: *const T, i: i64) -> T {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `raw_values`
[INFO] [stderr]    --> src/array.rs:280:4
[INFO] [stderr]     |
[INFO] [stderr] 280 | fn raw_values<T>(value_buffer: &Option<PoolBuffer>, offset: i64) -> *const T {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `FixedSizedBlob`
[INFO] [stderr]    --> src/array.rs:588:1
[INFO] [stderr]     |
[INFO] [stderr] 588 | type FixedSizedBlob = *const u8;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_capacity_for_type`
[INFO] [stderr]    --> src/builder.rs:117:3
[INFO] [stderr]     |
[INFO] [stderr] 117 |   fn get_capacity_for_type(ty: &Ty, req_capacity: i64) -> i64 {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `init_buffer`
[INFO] [stderr]    --> src/builder.rs:570:4
[INFO] [stderr]     |
[INFO] [stderr] 570 | fn init_buffer(buffer: &mut PoolBuffer, new_bits: i64) -> Result<(), ArrowError> {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `resize_buffer`
[INFO] [stderr]    --> src/builder.rs:575:4
[INFO] [stderr]     |
[INFO] [stderr] 575 | fn resize_buffer(buffer: &mut PoolBuffer, new_bits: i64) -> Result<(), ArrowError> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(pointer_methods)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `const_size_of`
[INFO] [stderr]  --> src/lib.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(const_size_of)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/common/ty.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `pop_len` should have an upper case name
[INFO] [stderr]   --> src/common/bit_util.rs:75:7
[INFO] [stderr]    |
[INFO] [stderr] 75 | const pop_len: i64 = (mem::size_of::<i64>() * 8) as i64;
[INFO] [stderr]    |       ^^^^^^^ help: convert the identifier to upper case: `POP_LEN`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: could not compile `iron-arrow`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused import: `Buffer`
[INFO] [stderr]  --> src/array.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 | use buffer::{Buffer, PoolBuffer};
[INFO] [stderr]   |              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Buffer`
[INFO] [stderr]  --> src/builder.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 | use buffer::{Buffer, PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stderr]   |              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Buffer`
[INFO] [stderr]   --> src/lib.rs:32:18
[INFO] [stderr]    |
[INFO] [stderr] 32 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer};
[INFO] [stderr]    |                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Buffer`
[INFO] [stderr]   --> src/lib.rs:46:18
[INFO] [stderr]    |
[INFO] [stderr] 46 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer, BufferBuilder, TypedBufferBuilder};
[INFO] [stderr]    |                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:413:25
[INFO] [stderr]     |
[INFO] [stderr] 413 |       &Ty::Date32 { ref unit } => 32,
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:414:25
[INFO] [stderr]     |
[INFO] [stderr] 414 |       &Ty::Date64 { ref unit } => 64,
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:416:28
[INFO] [stderr]     |
[INFO] [stderr] 416 |       &Ty::Timestamp { ref unit, ref timezone } => 64,
[INFO] [stderr]     |                        ----^^^^
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timezone`
[INFO] [stderr]    --> src/common/ty.rs:416:38
[INFO] [stderr]     |
[INFO] [stderr] 416 |       &Ty::Timestamp { ref unit, ref timezone } => 64,
[INFO] [stderr]     |                                  ----^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: try ignoring the field: `timezone: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:417:25
[INFO] [stderr]     |
[INFO] [stderr] 417 |       &Ty::Time32 { ref unit } => 32,
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:418:25
[INFO] [stderr]     |
[INFO] [stderr] 418 |       &Ty::Time64 { ref unit } => 64,
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:419:27
[INFO] [stderr]     |
[INFO] [stderr] 419 |       &Ty::Interval { ref unit } => 64,
[INFO] [stderr]     |                       ----^^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `precision`
[INFO] [stderr]    --> src/common/ty.rs:421:22
[INFO] [stderr]     |
[INFO] [stderr] 421 |       &Ty::Decimal { precision, scale } => 16 * 8,
[INFO] [stderr]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scale`
[INFO] [stderr]    --> src/common/ty.rs:421:33
[INFO] [stderr]     |
[INFO] [stderr] 421 |       &Ty::Decimal { precision, scale } => 16 * 8,
[INFO] [stderr]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dictionary`
[INFO] [stderr]    --> src/common/ty.rs:423:45
[INFO] [stderr]     |
[INFO] [stderr] 423 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => index_type.bit_width(),
[INFO] [stderr]     |                                         ----^^^^^^^^^^
[INFO] [stderr]     |                                         |
[INFO] [stderr]     |                                         help: try ignoring the field: `dictionary: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ordered`
[INFO] [stderr]    --> src/common/ty.rs:423:57
[INFO] [stderr]     |
[INFO] [stderr] 423 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => index_type.bit_width(),
[INFO] [stderr]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:452:25
[INFO] [stderr]     |
[INFO] [stderr] 452 |       &Ty::Date32 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 32)],
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:453:25
[INFO] [stderr]     |
[INFO] [stderr] 453 |       &Ty::Date64 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:455:28
[INFO] [stderr]     |
[INFO] [stderr] 455 |       &Ty::Timestamp { ref unit, ref timezone } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stderr]     |                        ----^^^^
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timezone`
[INFO] [stderr]    --> src/common/ty.rs:455:38
[INFO] [stderr]     |
[INFO] [stderr] 455 |       &Ty::Timestamp { ref unit, ref timezone } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stderr]     |                                  ----^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: try ignoring the field: `timezone: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:456:25
[INFO] [stderr]     |
[INFO] [stderr] 456 |       &Ty::Time32 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 32)],
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:457:25
[INFO] [stderr]     |
[INFO] [stderr] 457 |       &Ty::Time64 { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:458:27
[INFO] [stderr]     |
[INFO] [stderr] 458 |       &Ty::Interval { ref unit } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 64)],
[INFO] [stderr]     |                       ----^^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `precision`
[INFO] [stderr]    --> src/common/ty.rs:460:22
[INFO] [stderr]     |
[INFO] [stderr] 460 |       &Ty::Decimal { precision, scale } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 16 * 8)],
[INFO] [stderr]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scale`
[INFO] [stderr]    --> src/common/ty.rs:460:33
[INFO] [stderr]     |
[INFO] [stderr] 460 |       &Ty::Decimal { precision, scale } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, 16 * 8)],
[INFO] [stderr]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value_type`
[INFO] [stderr]    --> src/common/ty.rs:462:23
[INFO] [stderr]     |
[INFO] [stderr] 462 |       &Ty::List { ref value_type } => vec![BufferDesc::validity_buffer(), BufferDesc::offset_buffer()],
[INFO] [stderr]     |                   ----^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: try ignoring the field: `value_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/common/ty.rs:463:25
[INFO] [stderr]     |
[INFO] [stderr] 463 |       &Ty::Struct { ref fields } => vec![BufferDesc::validity_buffer()],
[INFO] [stderr]     |                     ----^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `fields: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/common/ty.rs:464:24
[INFO] [stderr]     |
[INFO] [stderr] 464 |       &Ty::Union { ref fields, ref type_codes, ref mode } => {
[INFO] [stderr]     |                    ----^^^^^^
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    help: try ignoring the field: `fields: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_codes`
[INFO] [stderr]    --> src/common/ty.rs:464:36
[INFO] [stderr]     |
[INFO] [stderr] 464 |       &Ty::Union { ref fields, ref type_codes, ref mode } => {
[INFO] [stderr]     |                                ----^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                help: try ignoring the field: `type_codes: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index_type`
[INFO] [stderr]    --> src/common/ty.rs:470:29
[INFO] [stderr]     |
[INFO] [stderr] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, self.bit_width())]
[INFO] [stderr]     |                         ----^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: try ignoring the field: `index_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dictionary`
[INFO] [stderr]    --> src/common/ty.rs:470:45
[INFO] [stderr]     |
[INFO] [stderr] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, self.bit_width())]
[INFO] [stderr]     |                                         ----^^^^^^^^^^
[INFO] [stderr]     |                                         |
[INFO] [stderr]     |                                         help: try ignoring the field: `dictionary: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ordered`
[INFO] [stderr]    --> src/common/ty.rs:470:57
[INFO] [stderr]     |
[INFO] [stderr] 470 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => vec![BufferDesc::validity_buffer(), BufferDesc::new(BufferType::Data, self.bit_width())]
[INFO] [stderr]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `byte_width`
[INFO] [stderr]    --> src/common/ty.rs:491:30
[INFO] [stderr]     |
[INFO] [stderr] 491 |       &Ty::FixedSizeBinary { byte_width } => "fixed_size_binary",
[INFO] [stderr]     |                              ^^^^^^^^^^ help: try ignoring the field: `byte_width: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:492:25
[INFO] [stderr]     |
[INFO] [stderr] 492 |       &Ty::Date32 { ref unit } => "date32",
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:493:25
[INFO] [stderr]     |
[INFO] [stderr] 493 |       &Ty::Date64 { ref unit } => "date64",
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:494:28
[INFO] [stderr]     |
[INFO] [stderr] 494 |       &Ty::Timestamp { ref unit, ref timezone } => "timestamp",
[INFO] [stderr]     |                        ----^^^^
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timezone`
[INFO] [stderr]    --> src/common/ty.rs:494:38
[INFO] [stderr]     |
[INFO] [stderr] 494 |       &Ty::Timestamp { ref unit, ref timezone } => "timestamp",
[INFO] [stderr]     |                                  ----^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: try ignoring the field: `timezone: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:495:25
[INFO] [stderr]     |
[INFO] [stderr] 495 |       &Ty::Time32 { ref unit } => "time32",
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:496:25
[INFO] [stderr]     |
[INFO] [stderr] 496 |       &Ty::Time64 { ref unit } => "time64",
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit`
[INFO] [stderr]    --> src/common/ty.rs:497:27
[INFO] [stderr]     |
[INFO] [stderr] 497 |       &Ty::Interval { ref unit } => "interval",
[INFO] [stderr]     |                       ----^^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: try ignoring the field: `unit: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `precision`
[INFO] [stderr]    --> src/common/ty.rs:498:22
[INFO] [stderr]     |
[INFO] [stderr] 498 |       &Ty::Decimal { precision, scale } => "decimal",
[INFO] [stderr]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scale`
[INFO] [stderr]    --> src/common/ty.rs:498:33
[INFO] [stderr]     |
[INFO] [stderr] 498 |       &Ty::Decimal { precision, scale } => "decimal",
[INFO] [stderr]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value_type`
[INFO] [stderr]    --> src/common/ty.rs:499:23
[INFO] [stderr]     |
[INFO] [stderr] 499 |       &Ty::List { ref value_type } => "list",
[INFO] [stderr]     |                   ----^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: try ignoring the field: `value_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/common/ty.rs:500:25
[INFO] [stderr]     |
[INFO] [stderr] 500 |       &Ty::Struct { ref fields } => "struct",
[INFO] [stderr]     |                     ----^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: try ignoring the field: `fields: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/common/ty.rs:501:24
[INFO] [stderr]     |
[INFO] [stderr] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stderr]     |                    ----^^^^^^
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    help: try ignoring the field: `fields: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_codes`
[INFO] [stderr]    --> src/common/ty.rs:501:36
[INFO] [stderr]     |
[INFO] [stderr] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stderr]     |                                ----^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                help: try ignoring the field: `type_codes: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/common/ty.rs:501:52
[INFO] [stderr]     |
[INFO] [stderr] 501 |       &Ty::Union { ref fields, ref type_codes, ref mode } => "union",
[INFO] [stderr]     |                                                ----^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                help: try ignoring the field: `mode: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index_type`
[INFO] [stderr]    --> src/common/ty.rs:502:29
[INFO] [stderr]     |
[INFO] [stderr] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stderr]     |                         ----^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: try ignoring the field: `index_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dictionary`
[INFO] [stderr]    --> src/common/ty.rs:502:45
[INFO] [stderr]     |
[INFO] [stderr] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stderr]     |                                         ----^^^^^^^^^^
[INFO] [stderr]     |                                         |
[INFO] [stderr]     |                                         help: try ignoring the field: `dictionary: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ordered`
[INFO] [stderr]    --> src/common/ty.rs:502:57
[INFO] [stderr]     |
[INFO] [stderr] 502 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => "dictionary",
[INFO] [stderr]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_codes`
[INFO] [stderr]    --> src/common/ty.rs:555:36
[INFO] [stderr]     |
[INFO] [stderr] 555 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields[i],
[INFO] [stderr]     |                                ----^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                help: try ignoring the field: `type_codes: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/common/ty.rs:555:52
[INFO] [stderr]     |
[INFO] [stderr] 555 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields[i],
[INFO] [stderr]     |                                                ----^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                help: try ignoring the field: `mode: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_codes`
[INFO] [stderr]    --> src/common/ty.rs:563:36
[INFO] [stderr]     |
[INFO] [stderr] 563 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields,
[INFO] [stderr]     |                                ----^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                help: try ignoring the field: `type_codes: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/common/ty.rs:563:52
[INFO] [stderr]     |
[INFO] [stderr] 563 |       &Ty::Union { ref fields, ref type_codes, ref mode } => &fields,
[INFO] [stderr]     |                                                ----^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                help: try ignoring the field: `mode: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_codes`
[INFO] [stderr]    --> src/common/ty.rs:571:36
[INFO] [stderr]     |
[INFO] [stderr] 571 |       &Ty::Union { ref fields, ref type_codes, ref mode } => fields.len() as i32,
[INFO] [stderr]     |                                ----^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                help: try ignoring the field: `type_codes: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/common/ty.rs:571:52
[INFO] [stderr]     |
[INFO] [stderr] 571 |       &Ty::Union { ref fields, ref type_codes, ref mode } => fields.len() as i32,
[INFO] [stderr]     |                                                ----^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                help: try ignoring the field: `mode: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timezone`
[INFO] [stderr]    --> src/common/ty.rs:586:38
[INFO] [stderr]     |
[INFO] [stderr] 586 |       &Ty::Timestamp { ref unit, ref timezone } => unit,
[INFO] [stderr]     |                                  ----^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: try ignoring the field: `timezone: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scale`
[INFO] [stderr]    --> src/common/ty.rs:602:33
[INFO] [stderr]     |
[INFO] [stderr] 602 |       &Ty::Decimal { precision, scale } => precision,
[INFO] [stderr]     |                                 ^^^^^ help: try ignoring the field: `scale: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `precision`
[INFO] [stderr]    --> src/common/ty.rs:609:22
[INFO] [stderr]     |
[INFO] [stderr] 609 |       &Ty::Decimal { precision, scale } => scale,
[INFO] [stderr]     |                      ^^^^^^^^^ help: try ignoring the field: `precision: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/common/ty.rs:623:24
[INFO] [stderr]     |
[INFO] [stderr] 623 |       &Ty::Union { ref fields, ref type_codes, ref mode } => type_codes,
[INFO] [stderr]     |                    ----^^^^^^
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    help: try ignoring the field: `fields: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/common/ty.rs:623:52
[INFO] [stderr]     |
[INFO] [stderr] 623 |       &Ty::Union { ref fields, ref type_codes, ref mode } => type_codes,
[INFO] [stderr]     |                                                ----^^^^
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                help: try ignoring the field: `mode: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fields`
[INFO] [stderr]    --> src/common/ty.rs:630:24
[INFO] [stderr]     |
[INFO] [stderr] 630 |       &Ty::Union { ref fields, ref type_codes, ref mode } => mode,
[INFO] [stderr]     |                    ----^^^^^^
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    help: try ignoring the field: `fields: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_codes`
[INFO] [stderr]    --> src/common/ty.rs:630:36
[INFO] [stderr]     |
[INFO] [stderr] 630 |       &Ty::Union { ref fields, ref type_codes, ref mode } => mode,
[INFO] [stderr]     |                                ----^^^^^^^^^^
[INFO] [stderr]     |                                |
[INFO] [stderr]     |                                help: try ignoring the field: `type_codes: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dictionary`
[INFO] [stderr]    --> src/common/ty.rs:637:45
[INFO] [stderr]     |
[INFO] [stderr] 637 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &index_type,
[INFO] [stderr]     |                                         ----^^^^^^^^^^
[INFO] [stderr]     |                                         |
[INFO] [stderr]     |                                         help: try ignoring the field: `dictionary: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ordered`
[INFO] [stderr]    --> src/common/ty.rs:637:57
[INFO] [stderr]     |
[INFO] [stderr] 637 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &index_type,
[INFO] [stderr]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index_type`
[INFO] [stderr]    --> src/common/ty.rs:644:29
[INFO] [stderr]     |
[INFO] [stderr] 644 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &dictionary,
[INFO] [stderr]     |                         ----^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: try ignoring the field: `index_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ordered`
[INFO] [stderr]    --> src/common/ty.rs:644:57
[INFO] [stderr]     |
[INFO] [stderr] 644 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => &dictionary,
[INFO] [stderr]     |                                                         ^^^^^^^ help: try ignoring the field: `ordered: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index_type`
[INFO] [stderr]    --> src/common/ty.rs:651:29
[INFO] [stderr]     |
[INFO] [stderr] 651 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => ordered,
[INFO] [stderr]     |                         ----^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: try ignoring the field: `index_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dictionary`
[INFO] [stderr]    --> src/common/ty.rs:651:45
[INFO] [stderr]     |
[INFO] [stderr] 651 |       &Ty::Dictionary { ref index_type, ref dictionary, ordered } => ordered,
[INFO] [stderr]     |                                         ----^^^^^^^^^^
[INFO] [stderr]     |                                         |
[INFO] [stderr]     |                                         help: try ignoring the field: `dictionary: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/common/mod.rs:367:9
[INFO] [stderr]     |
[INFO] [stderr] 367 |     let null_bitmap = PoolBuffer::new(pool);
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_null_bitmap`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/common/mod.rs:409:9
[INFO] [stderr]     |
[INFO] [stderr] 409 |     let null_bitmap = PoolBuffer::new(pool);
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_null_bitmap`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:151:32
[INFO] [stderr]     |
[INFO] [stderr] 151 |       &BuilderData::Bool { ref null_bitmap, ref data } => ArrayData::Bool,
[INFO] [stderr]     |                            ----^^^^^^^^^^^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/array.rs:151:49
[INFO] [stderr]     |
[INFO] [stderr] 151 |       &BuilderData::Bool { ref null_bitmap, ref data } => ArrayData::Bool,
[INFO] [stderr]     |                                             ----^^^^
[INFO] [stderr]     |                                             |
[INFO] [stderr]     |                                             help: try ignoring the field: `data: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:152:33
[INFO] [stderr]     |
[INFO] [stderr] 152 |       &BuilderData::UInt8 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                             ----^^^^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:157:32
[INFO] [stderr]     |
[INFO] [stderr] 157 |       &BuilderData::Int8 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                            ----^^^^^^^^^^^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:162:34
[INFO] [stderr]     |
[INFO] [stderr] 162 |       &BuilderData::UInt16 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                              ----^^^^^^^^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:167:33
[INFO] [stderr]     |
[INFO] [stderr] 167 |       &BuilderData::Int16 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                             ----^^^^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:172:34
[INFO] [stderr]     |
[INFO] [stderr] 172 |       &BuilderData::UInt32 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                              ----^^^^^^^^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:177:33
[INFO] [stderr]     |
[INFO] [stderr] 177 |       &BuilderData::Int32 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                             ----^^^^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:182:34
[INFO] [stderr]     |
[INFO] [stderr] 182 |       &BuilderData::UInt64 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                              ----^^^^^^^^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:187:33
[INFO] [stderr]     |
[INFO] [stderr] 187 |       &BuilderData::Int64 { ref null_bitmap, ref data } => {
[INFO] [stderr]     |                             ----^^^^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:192:34
[INFO] [stderr]     |
[INFO] [stderr] 192 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                              ----^^^^^^^^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/array.rs:264:17
[INFO] [stderr]     |
[INFO] [stderr] 264 |   fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/array.rs:302:32
[INFO] [stderr]     |
[INFO] [stderr] 302 |       &BuilderData::Bool { ref null_bitmap, ref data } => bit_util::get_bit(data.data(), i),
[INFO] [stderr]     |                            ----^^^^^^^^^^^
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value_offsets`
[INFO] [stderr]    --> src/array.rs:631:29
[INFO] [stderr]     |
[INFO] [stderr] 631 |       ArrayData::List { ref value_offsets, ref value_array } => value_array,
[INFO] [stderr]     |                         ----^^^^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: try ignoring the field: `value_offsets: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/memory_pool.rs:158:9
[INFO] [stderr]     |
[INFO] [stderr] 158 |     for i in 0..100 {
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `byte_width`
[INFO] [stderr]   --> src/builder.rs:73:29
[INFO] [stderr]    |
[INFO] [stderr] 73 |       Ty::FixedSizeBinary { byte_width } => BuilderData::FixedSizeBinary { null_bitmap, data },
[INFO] [stderr]    |                             ^^^^^^^^^^ help: try ignoring the field: `byte_width: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/builder.rs:465:61
[INFO] [stderr]     |
[INFO] [stderr] 465 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stderr]     |                                                             ^^^^
[INFO] [stderr] 466 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stderr]     |                                                             ^^^^
[INFO] [stderr] 467 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                                              ^^^^
[INFO] [stderr] 468 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                                              ^^^^
[INFO] [stderr] 469 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stderr]     |                                                               ^^^^
[INFO] [stderr] 470 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                                              ^^^^
[INFO] [stderr] 471 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stderr]     |                                                               ^^^^
[INFO] [stderr] 472 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                                              ^^^^
[INFO] [stderr] 473 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stderr]     |                                                               ^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: try ignoring the field
[INFO] [stderr]     |
[INFO] [stderr] 465 |       &mut BuilderData::Bool { ref mut null_bitmap, data: _data: _data: _data: _data: _data: _data: _data: _data: _ }   |
[INFO] [stderr]     |                                                     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lengths_and_data`
[INFO] [stderr]    --> src/builder.rs:481:63
[INFO] [stderr]     |
[INFO] [stderr] 481 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                                                       --------^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                                       |
[INFO] [stderr]     |                                                       help: try ignoring the field: `lengths_and_data: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cur_offset`
[INFO] [stderr]    --> src/builder.rs:481:81
[INFO] [stderr]     |
[INFO] [stderr] 481 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/builder.rs:496:40
[INFO] [stderr]     |
[INFO] [stderr] 496 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 497 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 498 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 499 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 500 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 501 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 502 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 503 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 504 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: try ignoring the field
[INFO] [stderr]     |
[INFO] [stderr] 496 |       &mut BuilderData::Bool { null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _, ref mut data }   |
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/builder.rs:512:42
[INFO] [stderr]     |
[INFO] [stderr] 512 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                                  --------^^^^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cur_offset`
[INFO] [stderr]    --> src/builder.rs:512:81
[INFO] [stderr]     |
[INFO] [stderr] 512 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/builder.rs:527:40
[INFO] [stderr]     |
[INFO] [stderr] 527 |       &mut BuilderData::Bool { ref mut null_bitmap, ref mut data }   |
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 528 |       &mut BuilderData::Int8 { ref mut null_bitmap, ref mut data }   |
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 529 |       &mut BuilderData::UInt8 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 530 |       &mut BuilderData::Int16 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 531 |       &mut BuilderData::UInt16 { ref mut null_bitmap, ref mut data } |
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 532 |       &mut BuilderData::Int32 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 533 |       &mut BuilderData::UInt32 { ref mut null_bitmap, ref mut data } |
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 534 |       &mut BuilderData::Int64 { ref mut null_bitmap, ref mut data }  |
[INFO] [stderr]     |                                         ^^^^^^^^^^^
[INFO] [stderr] 535 |       &mut BuilderData::UInt64 { ref mut null_bitmap, ref mut data } => {
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: try ignoring the field
[INFO] [stderr]     |
[INFO] [stderr] 527 |       &mut BuilderData::Bool { null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _null_bitmap: _, ref mut data }   |
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `null_bitmap`
[INFO] [stderr]    --> src/builder.rs:542:42
[INFO] [stderr]     |
[INFO] [stderr] 542 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                                  --------^^^^^^^^^^^
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  help: try ignoring the field: `null_bitmap: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cur_offset`
[INFO] [stderr]    --> src/builder.rs:542:81
[INFO] [stderr]     |
[INFO] [stderr] 542 |       &mut BuilderData::Binary { ref mut null_bitmap, ref mut lengths_and_data, cur_offset } => {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/builder.rs:555:49
[INFO] [stderr]     |
[INFO] [stderr] 555 |       &BuilderData::Bool { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                 ^^^^
[INFO] [stderr] 556 |       &BuilderData::Int8 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                 ^^^^
[INFO] [stderr] 557 |       &BuilderData::UInt8 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                  ^^^^
[INFO] [stderr] 558 |       &BuilderData::Int16 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                  ^^^^
[INFO] [stderr] 559 |       &BuilderData::UInt16 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                   ^^^^
[INFO] [stderr] 560 |       &BuilderData::Int32 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                  ^^^^
[INFO] [stderr] 561 |       &BuilderData::UInt32 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                   ^^^^
[INFO] [stderr] 562 |       &BuilderData::Int64 { ref null_bitmap, ref data } |
[INFO] [stderr]     |                                                  ^^^^
[INFO] [stderr] 563 |       &BuilderData::UInt64 { ref null_bitmap, ref data } => Some(null_bitmap),
[INFO] [stderr]     |                                                   ^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: try ignoring the field
[INFO] [stderr]     |
[INFO] [stderr] 555 |       &BuilderData::Bool { ref null_bitmap, data: _data: _data: _data: _data: _data: _data: _data: _data: _ } |
[INFO] [stderr]     |                                             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lengths_and_data`
[INFO] [stderr]    --> src/builder.rs:564:51
[INFO] [stderr]     |
[INFO] [stderr] 564 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => Some(null_bitmap),
[INFO] [stderr]     |                                               ----^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                               |
[INFO] [stderr]     |                                               help: try ignoring the field: `lengths_and_data: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cur_offset`
[INFO] [stderr]    --> src/builder.rs:564:69
[INFO] [stderr]     |
[INFO] [stderr] 564 |       &BuilderData::Binary { ref null_bitmap, ref lengths_and_data, cur_offset } => Some(null_bitmap),
[INFO] [stderr]     |                                                                     ^^^^^^^^^^ help: try ignoring the field: `cur_offset: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/builder.rs:600:9
[INFO] [stderr]     |
[INFO] [stderr] 600 |     for i in 0..100 {
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/builder.rs:624:9
[INFO] [stderr]     |
[INFO] [stderr] 624 |     for i in 0..100 {
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/builder.rs:658:15
[INFO] [stderr]     |
[INFO] [stderr] 658 |           for i in 0..100 {
[INFO] [stderr]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] ...
[INFO] [stderr] 684 |   test_primitive_type_builder!(test_i8_builder, Ty::Int8, i8, 128);
[INFO] [stderr]     |   ----------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/builder.rs:658:15
[INFO] [stderr]     |
[INFO] [stderr] 658 |           for i in 0..100 {
[INFO] [stderr]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] ...
[INFO] [stderr] 685 |   test_primitive_type_builder!(test_u8_builder, Ty::UInt8, u8, 128);
[INFO] [stderr]     |   ------------------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/builder.rs:658:15
[INFO] [stderr]     |
[INFO] [stderr] 658 |           for i in 0..100 {
[INFO] [stderr]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] ...
[INFO] [stderr] 686 |   test_primitive_type_builder!(test_i16_builder, Ty::Int16, i16, 128);
[INFO] [stderr]     |   -------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/builder.rs:658:15
[INFO] [stderr]     |
[INFO] [stderr] 658 |           for i in 0..100 {
[INFO] [stderr]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] ...
[INFO] [stderr] 687 |   test_primitive_type_builder!(test_u16_builder, Ty::UInt16, u16, 128);
[INFO] [stderr]     |   --------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/builder.rs:658:15
[INFO] [stderr]     |
[INFO] [stderr] 658 |           for i in 0..100 {
[INFO] [stderr]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] ...
[INFO] [stderr] 688 |   test_primitive_type_builder!(test_i32_builder, Ty::Int32, i32, 128);
[INFO] [stderr]     |   -------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/builder.rs:658:15
[INFO] [stderr]     |
[INFO] [stderr] 658 |           for i in 0..100 {
[INFO] [stderr]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] ...
[INFO] [stderr] 689 |   test_primitive_type_builder!(test_u32_builder, Ty::UInt32, u32, 128);
[INFO] [stderr]     |   --------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/builder.rs:658:15
[INFO] [stderr]     |
[INFO] [stderr] 658 |           for i in 0..100 {
[INFO] [stderr]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] ...
[INFO] [stderr] 690 |   test_primitive_type_builder!(test_i64_builder, Ty::Int64, i64, 128);
[INFO] [stderr]     |   -------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/builder.rs:658:15
[INFO] [stderr]     |
[INFO] [stderr] 658 |           for i in 0..100 {
[INFO] [stderr]     |               ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] ...
[INFO] [stderr] 691 |   test_primitive_type_builder!(test_u64_builder, Ty::UInt64, u64, 128);
[INFO] [stderr]     |   --------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/builder.rs:708:9
[INFO] [stderr]     |
[INFO] [stderr] 708 |     for i in 0..100 {
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]   --> src/lib.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut buffer = PoolBuffer::new(Arc::new(RefCell::new(DefaultMemoryPool::new())));
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut buffer = PoolBuffer::new(Arc::new(RefCell::new(DefaultMemoryPool::new())));
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/common/bit_util.rs:158:9
[INFO] [stderr]     |
[INFO] [stderr] 158 |     let mut data = buffer.data_as_mut();
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/buffer.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     unsafe { mem::forget(self.page) }
[INFO] [stderr]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/buffer.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     unsafe { mem::forget(self.page) }
[INFO] [stderr]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ROUND_TO`
[INFO] [stderr]  --> src/common/bit_util.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const ROUND_TO: i64 = 64;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compute_null_count`
[INFO] [stderr]    --> src/array.rs:134:3
[INFO] [stderr]     |
[INFO] [stderr] 134 |   fn compute_null_count(null_bitmap: &Option<PoolBuffer>, offset: i64, length: i64) -> i64 {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `raw_value`
[INFO] [stderr]    --> src/array.rs:276:4
[INFO] [stderr]     |
[INFO] [stderr] 276 | fn raw_value<T: Copy>(values: *const T, i: i64) -> T {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `raw_values`
[INFO] [stderr]    --> src/array.rs:280:4
[INFO] [stderr]     |
[INFO] [stderr] 280 | fn raw_values<T>(value_buffer: &Option<PoolBuffer>, offset: i64) -> *const T {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `FixedSizedBlob`
[INFO] [stderr]    --> src/array.rs:588:1
[INFO] [stderr]     |
[INFO] [stderr] 588 | type FixedSizedBlob = *const u8;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_capacity_for_type`
[INFO] [stderr]    --> src/builder.rs:117:3
[INFO] [stderr]     |
[INFO] [stderr] 117 |   fn get_capacity_for_type(ty: &Ty, req_capacity: i64) -> i64 {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `init_buffer`
[INFO] [stderr]    --> src/builder.rs:570:4
[INFO] [stderr]     |
[INFO] [stderr] 570 | fn init_buffer(buffer: &mut PoolBuffer, new_bits: i64) -> Result<(), ArrowError> {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `resize_buffer`
[INFO] [stderr]    --> src/builder.rs:575:4
[INFO] [stderr]     |
[INFO] [stderr] 575 | fn resize_buffer(buffer: &mut PoolBuffer, new_bits: i64) -> Result<(), ArrowError> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(pointer_methods)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `const_size_of`
[INFO] [stderr]  --> src/lib.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(const_size_of)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/common/ty.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `pop_len` should have an upper case name
[INFO] [stderr]   --> src/common/bit_util.rs:75:7
[INFO] [stderr]    |
[INFO] [stderr] 75 | const pop_len: i64 = (mem::size_of::<i64>() * 8) as i64;
[INFO] [stderr]    |       ^^^^^^^ help: convert the identifier to upper case: `POP_LEN`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/common/bit_util.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     buffer.reserve(100);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/common/bit_util.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     buffer.reserve(5);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/builder.rs:601:7
[INFO] [stderr]     |
[INFO] [stderr] 601 |       builder.append_null();
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/builder.rs:626:7
[INFO] [stderr]     |
[INFO] [stderr] 626 |       builder.append(val);
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/builder.rs:660:13
[INFO] [stderr]     |
[INFO] [stderr] 660 |             builder.append(val);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 684 |   test_primitive_type_builder!(test_i8_builder, Ty::Int8, i8, 128);
[INFO] [stderr]     |   ----------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/builder.rs:660:13
[INFO] [stderr]     |
[INFO] [stderr] 660 |             builder.append(val);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 685 |   test_primitive_type_builder!(test_u8_builder, Ty::UInt8, u8, 128);
[INFO] [stderr]     |   ------------------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/builder.rs:660:13
[INFO] [stderr]     |
[INFO] [stderr] 660 |             builder.append(val);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 686 |   test_primitive_type_builder!(test_i16_builder, Ty::Int16, i16, 128);
[INFO] [stderr]     |   -------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/builder.rs:660:13
[INFO] [stderr]     |
[INFO] [stderr] 660 |             builder.append(val);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 687 |   test_primitive_type_builder!(test_u16_builder, Ty::UInt16, u16, 128);
[INFO] [stderr]     |   --------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/builder.rs:660:13
[INFO] [stderr]     |
[INFO] [stderr] 660 |             builder.append(val);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 688 |   test_primitive_type_builder!(test_i32_builder, Ty::Int32, i32, 128);
[INFO] [stderr]     |   -------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/builder.rs:660:13
[INFO] [stderr]     |
[INFO] [stderr] 660 |             builder.append(val);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 689 |   test_primitive_type_builder!(test_u32_builder, Ty::UInt32, u32, 128);
[INFO] [stderr]     |   --------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/builder.rs:660:13
[INFO] [stderr]     |
[INFO] [stderr] 660 |             builder.append(val);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 690 |   test_primitive_type_builder!(test_i64_builder, Ty::Int64, i64, 128);
[INFO] [stderr]     |   -------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/builder.rs:660:13
[INFO] [stderr]     |
[INFO] [stderr] 660 |             builder.append(val);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 691 |   test_primitive_type_builder!(test_u64_builder, Ty::UInt64, u64, 128);
[INFO] [stderr]     |   --------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/builder.rs:723:7
[INFO] [stderr]     |
[INFO] [stderr] 723 |       builder.append(val);
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:50:7
[INFO] [stderr]    |
[INFO] [stderr] 50 |       buffer_builder.append_typed_val(i + 10);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: could not compile `iron-arrow`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1f19d2fda4d5ec818cd8f7259b247b88dea74dc3613af1b98c7ea6a944125494"`
[INFO] running `"docker" "rm" "-f" "1f19d2fda4d5ec818cd8f7259b247b88dea74dc3613af1b98c7ea6a944125494"`
[INFO] [stdout] 1f19d2fda4d5ec818cd8f7259b247b88dea74dc3613af1b98c7ea6a944125494
