[INFO] fetching crate iron-arrow 0.1.0...
[INFO] checking iron-arrow-0.1.0 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate iron-arrow 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate iron-arrow 0.1.0 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iron-arrow 0.1.0
[INFO] finished tweaking crates.io crate iron-arrow 0.1.0
[INFO] tweaked toml for crates.io crate iron-arrow 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 746786e8eb153a7d59494df670276d528ee407a52d8dcab5168cc167f360eaaf
[INFO] running `Command { std: "docker" "start" "-a" "746786e8eb153a7d59494df670276d528ee407a52d8dcab5168cc167f360eaaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "746786e8eb153a7d59494df670276d528ee407a52d8dcab5168cc167f360eaaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "746786e8eb153a7d59494df670276d528ee407a52d8dcab5168cc167f360eaaf", kill_on_drop: false }`
[INFO] [stdout] 746786e8eb153a7d59494df670276d528ee407a52d8dcab5168cc167f360eaaf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22ad12667b5f8d6701c1ffdf6b0314c0a27e363db8c5d68dec2da327993d73ec
[INFO] running `Command { std: "docker" "start" "-a" "22ad12667b5f8d6701c1ffdf6b0314c0a27e363db8c5d68dec2da327993d73ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking iron-arrow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax, box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax, box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/common/ty.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/common/ty.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/common/ty.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use array;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]  --> src/common/ty.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]   --> src/common/ty.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::mem;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]   --> src/common/ty.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]    |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/common/bit_util.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array::Array`
[INFO] [stdout]  --> src/common/field.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use array::Array;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]  --> src/common/field.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]   |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/array.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/array.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/array.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ptr` is imported redundantly
[INFO] [stdout]    --> src/array.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 9   | use std::ptr;
[INFO] [stdout]     |     -------- the item `ptr` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 284 |         use std::ptr;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]    --> src/array.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 284 |         use std::ptr;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/array.rs:437:15
[INFO] [stdout]     |
[INFO] [stdout] 437 |           use libc;
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StatusCode`
[INFO] [stdout]  --> src/memory_pool.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::{ArrowError, StatusCode};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> src/memory_pool.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Num`
[INFO] [stdout]   --> src/buffer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use num::Num;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/builder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/builder.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Array`
[INFO] [stdout]  --> src/builder.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use array::{Array, Blob};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/builder.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/builder.rs:326:19
[INFO] [stdout]     |
[INFO] [stdout] 326 |               use libc;
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc`
[INFO] [stdout]    --> src/builder.rs:326:19
[INFO] [stdout]     |
[INFO] [stdout] 326 |               use libc;
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/common/ty.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/memory_pool.rs:120:44
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut page: *mut libc::c_void = mem::uninitialized();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:43:27
[INFO] [stdout]    |
[INFO] [stdout] 43 |         Ok((unsafe { mem::uninitialized() }, 0, 0))
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/buffer.rs:239:27
[INFO] [stdout]     |
[INFO] [stdout] 239 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_size_of` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_size_of)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pointer_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `integer_atomics`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(integer_atomics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:80:21
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]     |                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:649:25
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &ArrowSlice<bool> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &dyn ArrowSlice<bool> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:653:25
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &ArrowSlice<i8> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &dyn ArrowSlice<i8> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64),...
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64), ArrowError> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:58:35
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:19:31
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&Buffer>;
[INFO] [stdout]    |                               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&dyn Buffer>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/common/ty.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/common/ty.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/common/ty.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use array;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]  --> src/common/ty.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]   --> src/common/ty.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::mem;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]   --> src/common/ty.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]    |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/common/bit_util.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:116:35
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&Buffer> {
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&dyn Buffer> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/common/bit_util.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |     use rand;
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:9:1
[INFO] [stdout]     |
[INFO] [stdout] 9   | extern crate rand;
[INFO] [stdout]     | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array::Array`
[INFO] [stdout]  --> src/common/field.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use array::Array;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:236:32
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]  --> src/common/field.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]   |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]    --> src/common/mod.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |     use std;
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/array.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/array.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/array.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ptr` is imported redundantly
[INFO] [stdout]    --> src/array.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 9   | use std::ptr;
[INFO] [stdout]     |     -------- the item `ptr` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 284 |         use std::ptr;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]    --> src/array.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 284 |         use std::ptr;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/array.rs:437:15
[INFO] [stdout]     |
[INFO] [stdout] 437 |           use libc;
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StatusCode`
[INFO] [stdout]  --> src/memory_pool.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::{ArrowError, StatusCode};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> src/memory_pool.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Num`
[INFO] [stdout]   --> src/buffer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use num::Num;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/builder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/builder.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Array`
[INFO] [stdout]  --> src/builder.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use array::{Array, Blob};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/builder.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/builder.rs:326:19
[INFO] [stdout]     |
[INFO] [stdout] 326 |               use libc;
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc`
[INFO] [stdout]    --> src/builder.rs:326:19
[INFO] [stdout]     |
[INFO] [stdout] 326 |               use libc;
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MutableBuffer`, `ResizableBuffer`
[INFO] [stdout]    --> src/builder.rs:589:28
[INFO] [stdout]     |
[INFO] [stdout] 589 |   use buffer::{PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]   --> src/lib.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 |   use common::status::ArrowError;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MemoryPool`
[INFO] [stdout]   --> src/lib.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |   use memory_pool::{DefaultMemoryPool, MemoryPool};
[INFO] [stdout]    |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MutableBuffer`
[INFO] [stdout]   --> src/lib.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MutableBuffer`, `PoolBuffer`, `ResizableBuffer`
[INFO] [stdout]   --> src/lib.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer, BufferBuilder, TypedBufferBuilder};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/common/ty.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/memory_pool.rs:120:44
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut page: *mut libc::c_void = mem::uninitialized();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:43:27
[INFO] [stdout]    |
[INFO] [stdout] 43 |         Ok((unsafe { mem::uninitialized() }, 0, 0))
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/buffer.rs:239:27
[INFO] [stdout]     |
[INFO] [stdout] 239 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_size_of` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_size_of)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pointer_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `integer_atomics`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(integer_atomics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:80:21
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]     |                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:649:25
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &ArrowSlice<bool> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &dyn ArrowSlice<bool> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:653:25
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &ArrowSlice<i8> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &dyn ArrowSlice<i8> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64),...
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64), ArrowError> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:58:35
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:19:31
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&Buffer>;
[INFO] [stdout]    |                               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&dyn Buffer>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:116:35
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&Buffer> {
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&dyn Buffer> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:236:32
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/array.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/builder.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 46 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iron-arrow` (lib) due to 3 previous errors; 46 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/array.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]   --> src/lib.rs:46:18
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer, BufferBuilder, TypedBufferBuilder};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/builder.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]   --> src/lib.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 55 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iron-arrow` (lib test) due to 3 previous errors; 55 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "22ad12667b5f8d6701c1ffdf6b0314c0a27e363db8c5d68dec2da327993d73ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22ad12667b5f8d6701c1ffdf6b0314c0a27e363db8c5d68dec2da327993d73ec", kill_on_drop: false }`
[INFO] [stdout] 22ad12667b5f8d6701c1ffdf6b0314c0a27e363db8c5d68dec2da327993d73ec
[INFO] checking iron-arrow-0.1.0 against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] extracting crate iron-arrow 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate iron-arrow 0.1.0 on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iron-arrow 0.1.0
[INFO] finished tweaking crates.io crate iron-arrow 0.1.0
[INFO] tweaked toml for crates.io crate iron-arrow 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f293789cd3d71ea9fc4efa92426fe4725d3d2fc4ff83df387b57565bdfc0749e
[INFO] running `Command { std: "docker" "start" "-a" "f293789cd3d71ea9fc4efa92426fe4725d3d2fc4ff83df387b57565bdfc0749e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f293789cd3d71ea9fc4efa92426fe4725d3d2fc4ff83df387b57565bdfc0749e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f293789cd3d71ea9fc4efa92426fe4725d3d2fc4ff83df387b57565bdfc0749e", kill_on_drop: false }`
[INFO] [stdout] f293789cd3d71ea9fc4efa92426fe4725d3d2fc4ff83df387b57565bdfc0749e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 439f83c1c4a07f722dc0e54faee9bda48ddc29b72cb751d8f1e98d148183c589
[INFO] running `Command { std: "docker" "start" "-a" "439f83c1c4a07f722dc0e54faee9bda48ddc29b72cb751d8f1e98d148183c589", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking iron-arrow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax, box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax, box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/common/ty.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/common/ty.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/common/ty.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use array;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]  --> src/common/ty.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]   --> src/common/ty.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::mem;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]   --> src/common/ty.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]    |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/common/bit_util.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/common/bit_util.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |     use rand;
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:9:1
[INFO] [stdout]     |
[INFO] [stdout] 9   | extern crate rand;
[INFO] [stdout]     | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array::Array`
[INFO] [stdout]  --> src/common/field.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use array::Array;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]  --> src/common/field.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]   |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/common/ty.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]    --> src/common/mod.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |     use std;
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/common/ty.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/common/ty.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use array;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]  --> src/common/ty.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]   --> src/common/ty.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::mem;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]   --> src/common/ty.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]    |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/array.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/common/bit_util.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array::Array`
[INFO] [stdout]  --> src/common/field.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use array::Array;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/array.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `Formatter`
[INFO] [stdout]  --> src/common/field.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stdout]   |                       ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/array.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]  --> src/array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::ArrowError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/array.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ptr` is imported redundantly
[INFO] [stdout]    --> src/array.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 9   | use std::ptr;
[INFO] [stdout]     |     -------- the item `ptr` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 284 |         use std::ptr;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/array.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/array.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]    --> src/array.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 284 |         use std::ptr;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ptr` is imported redundantly
[INFO] [stdout]    --> src/array.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 9   | use std::ptr;
[INFO] [stdout]     |     -------- the item `ptr` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 284 |         use std::ptr;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]    --> src/array.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 284 |         use std::ptr;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/array.rs:437:15
[INFO] [stdout]     |
[INFO] [stdout] 437 |           use libc;
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/array.rs:437:15
[INFO] [stdout]     |
[INFO] [stdout] 437 |           use libc;
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StatusCode`
[INFO] [stdout]  --> src/memory_pool.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::{ArrowError, StatusCode};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> src/memory_pool.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Num`
[INFO] [stdout]   --> src/buffer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use num::Num;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StatusCode`
[INFO] [stdout]  --> src/memory_pool.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use common::status::{ArrowError, StatusCode};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/builder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/builder.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Array`
[INFO] [stdout]  --> src/builder.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use array::{Array, Blob};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/builder.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> src/memory_pool.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/builder.rs:326:19
[INFO] [stdout]     |
[INFO] [stdout] 326 |               use libc;
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc`
[INFO] [stdout]    --> src/builder.rs:326:19
[INFO] [stdout]     |
[INFO] [stdout] 326 |               use libc;
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Num`
[INFO] [stdout]   --> src/buffer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use num::Num;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::ty`
[INFO] [stdout]  --> src/builder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use common::ty;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `memory_pool::MemoryPool`
[INFO] [stdout]  --> src/builder.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use memory_pool::MemoryPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Array`
[INFO] [stdout]  --> src/builder.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use array::{Array, Blob};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/builder.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]    --> src/builder.rs:326:19
[INFO] [stdout]     |
[INFO] [stdout] 326 |               use libc;
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout] 7   | extern crate libc;
[INFO] [stdout]     | ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libc`
[INFO] [stdout]    --> src/builder.rs:326:19
[INFO] [stdout]     |
[INFO] [stdout] 326 |               use libc;
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MutableBuffer`, `ResizableBuffer`
[INFO] [stdout]    --> src/builder.rs:589:28
[INFO] [stdout]     |
[INFO] [stdout] 589 |   use buffer::{PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::status::ArrowError`
[INFO] [stdout]   --> src/lib.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 |   use common::status::ArrowError;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MemoryPool`
[INFO] [stdout]   --> src/lib.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |   use memory_pool::{DefaultMemoryPool, MemoryPool};
[INFO] [stdout]    |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MutableBuffer`
[INFO] [stdout]   --> src/lib.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MutableBuffer`, `PoolBuffer`, `ResizableBuffer`
[INFO] [stdout]   --> src/lib.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer, BufferBuilder, TypedBufferBuilder};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/common/ty.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/memory_pool.rs:120:44
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut page: *mut libc::c_void = mem::uninitialized();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:43:27
[INFO] [stdout]    |
[INFO] [stdout] 43 |         Ok((unsafe { mem::uninitialized() }, 0, 0))
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/buffer.rs:239:27
[INFO] [stdout]     |
[INFO] [stdout] 239 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_size_of` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_size_of)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pointer_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `integer_atomics`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(integer_atomics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:80:21
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]     |                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:649:25
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &ArrowSlice<bool> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &dyn ArrowSlice<bool> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:653:25
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &ArrowSlice<i8> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &dyn ArrowSlice<i8> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64),...
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64), ArrowError> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:58:35
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:19:31
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&Buffer>;
[INFO] [stdout]    |                               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&dyn Buffer>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:116:35
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&Buffer> {
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&dyn Buffer> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:236:32
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/common/ty.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/memory_pool.rs:120:44
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut page: *mut libc::c_void = mem::uninitialized();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:43:27
[INFO] [stdout]    |
[INFO] [stdout] 43 |         Ok((unsafe { mem::uninitialized() }, 0, 0))
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/buffer.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/buffer.rs:239:27
[INFO] [stdout]     |
[INFO] [stdout] 239 |       page: unsafe { mem::uninitialized() },
[INFO] [stdout]     |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_size_of` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_size_of)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pointer_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `integer_atomics`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(integer_atomics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:80:21
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<MemoryPool>>,
[INFO] [stdout]     |                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pool: Arc<RefCell<dyn MemoryPool>>,
[INFO] [stdout]     |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:649:25
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &ArrowSlice<bool> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 649 |   fn as_bool(&self) -> &dyn ArrowSlice<bool> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/array.rs:653:25
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &ArrowSlice<i8> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 653 |   fn as_int8(&self) -> &dyn ArrowSlice<i8> {
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64),...
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn resize(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64, new_size: i64) -> Result<(*const u8, i64, i64), ArrowError> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:58:35
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn reserve(pool: &mut Arc<RefCell<dyn MemoryPool>>, page: *const u8, capacity: i64, new_capacity: i64) -> Result<(*const u8, i64), ArrowError> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:19:31
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&Buffer>;
[INFO] [stdout]    |                               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |   fn parent(&self) -> Option<&dyn Buffer>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> PoolBuffer {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:98:33
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn from(pool: Arc<RefCell<dyn MemoryPool>>, page: *const u8, size: i64, capacity: i64) -> PoolBuffer {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:116:35
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&Buffer> {
[INFO] [stdout]     |                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn parent(&self) -> Option<&dyn Buffer> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/buffer.rs:236:32
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 236 |   pub fn new(pool: Arc<RefCell<dyn MemoryPool>>) -> BufferBuilder {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/array.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/builder.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 46 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iron-arrow` (lib) due to 3 previous errors; 46 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/array.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]   --> src/lib.rs:46:18
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer, BufferBuilder, TypedBufferBuilder};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]  --> src/builder.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use buffer::{Buffer, PoolBuffer, ResizableBuffer, MutableBuffer};
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buffer`
[INFO] [stdout]   --> src/lib.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use buffer::{Buffer, MutableBuffer, ResizableBuffer, PoolBuffer};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 55 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iron-arrow` (lib test) due to 3 previous errors; 55 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "439f83c1c4a07f722dc0e54faee9bda48ddc29b72cb751d8f1e98d148183c589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "439f83c1c4a07f722dc0e54faee9bda48ddc29b72cb751d8f1e98d148183c589", kill_on_drop: false }`
[INFO] [stdout] 439f83c1c4a07f722dc0e54faee9bda48ddc29b72cb751d8f1e98d148183c589
