[INFO] fetching crate form-data 0.0.6...
[INFO] checking form-data-0.0.6 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate form-data 0.0.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate form-data 0.0.6 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate form-data 0.0.6
[INFO] removed 1 missing examples
[INFO] finished tweaking crates.io crate form-data 0.0.6
[INFO] tweaked toml for crates.io crate form-data 0.0.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate form-data 0.0.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] efabba0c9e89d9adf9abdc967b6bb9aedc6f93adde16557a452ca6528937fea8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "efabba0c9e89d9adf9abdc967b6bb9aedc6f93adde16557a452ca6528937fea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efabba0c9e89d9adf9abdc967b6bb9aedc6f93adde16557a452ca6528937fea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efabba0c9e89d9adf9abdc967b6bb9aedc6f93adde16557a452ca6528937fea8", kill_on_drop: false }`
[INFO] [stdout] efabba0c9e89d9adf9abdc967b6bb9aedc6f93adde16557a452ca6528937fea8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf8cd149c4f80a223825deb179541e1ca0dbfdd3c9b48cfdd6b6c92fb30f2119
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bf8cd149c4f80a223825deb179541e1ca0dbfdd3c9b48cfdd6b6c92fb30f2119", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.32
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]     Checking waker-fn v1.0.0
[INFO] [stderr]     Checking cache-padded v1.1.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking parking v1.0.1
[INFO] [stderr]     Checking mime-db v0.1.5
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking fastrand v1.2.4
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking concurrent-queue v1.1.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking twoway v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking blocking v0.4.6
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking form-data v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::future::Future`
[INFO] [stdout]  --> src/field.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::future::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IoSliceMut`, `IoSlice`
[INFO] [stdout]  --> src/field.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{IoSlice, IoSliceMut, Write};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/field.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncReadExt`
[INFO] [stdout]   --> src/field.rs:13:27
[INFO] [stdout]    |
[INFO] [stdout] 13 |     io::{self, AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt},
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]   --> src/field.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Field<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![warn(missing_docs, missing_doc_code_examples, unreachable_pub)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]   --> src/field.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]   --> src/field.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub index: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]   --> src/field.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub filename: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]   --> src/field.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub content_type: Option<mime::Mime>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]   --> src/field.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub headers: Option<http::HeaderMap>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]   --> src/field.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub length: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/field.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn empty() -> Self {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/field.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn headers_mut(&mut self) -> &mut Option<http::HeaderMap> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/field.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn state_mut(&mut self) -> &mut Option<Arc<Mutex<State<T>>>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/field.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn state(&self) -> Result<MutexGuard<'_, State<T>>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/field.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn consumed(&self) -> bool {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]   --> src/form.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct FormData<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/form.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new<B: AsRef<[u8]>>(b: B, t: T) -> Self {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/form.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn state(&self) -> Arc<Mutex<State<T>>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/form.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn set_max_buf_size(&mut self, max: usize) -> Result<()> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]   --> src/state.rs:81:1
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub struct State<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/state.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn new<B: AsRef<[u8]>>(b: B, io: T) -> Self {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/state.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn set_max_buf_size(&mut self, max: usize) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/state.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn io_mut(&mut self) -> &mut T {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/state.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn waker(&self) -> Option<&Waker> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/state.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn waker_mut(&mut self) -> &mut Option<Waker> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/state.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn buffer(&self) -> &BytesMut {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/state.rs:137:5
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn buffer_mut(&mut self) -> &mut BytesMut {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/state.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn buffer_split(&mut self, n: usize) -> Bytes {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/state.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     pub fn buffer_drop(&mut self) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/state.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn eof(&self) -> bool {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/state.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn incr_index(&mut self) -> usize {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/state.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn len(&self) -> u64 {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/state.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 |     pub fn total(&self) -> usize {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a constant
[INFO] [stdout]   --> src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub const MAX_HEADERS: usize = 8 * 2;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking smol v0.1.17
[INFO] [stderr]     Checking hyper v0.13.6
[INFO] [stdout] warning: unused import: `std::future::Future`
[INFO] [stdout]  --> src/field.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::future::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IoSliceMut`, `IoSlice`
[INFO] [stdout]  --> src/field.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{IoSlice, IoSliceMut, Write};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/field.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncReadExt`
[INFO] [stdout]   --> src/field.rs:13:27
[INFO] [stdout]    |
[INFO] [stdout] 13 |     io::{self, AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt},
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.06s
[INFO] running `Command { std: "docker" "inspect" "bf8cd149c4f80a223825deb179541e1ca0dbfdd3c9b48cfdd6b6c92fb30f2119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf8cd149c4f80a223825deb179541e1ca0dbfdd3c9b48cfdd6b6c92fb30f2119", kill_on_drop: false }`
[INFO] [stdout] bf8cd149c4f80a223825deb179541e1ca0dbfdd3c9b48cfdd6b6c92fb30f2119
