[INFO] cloning repository https://github.com/mzeric/iotunnel [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mzeric/iotunnel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzeric%2Fiotunnel", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzeric%2Fiotunnel'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c3dee58d7046c612a104c06cd585a431979566d0 [INFO] checking mzeric/iotunnel against try#95813608313bff49cfc1afc393a946a3c085b772 for pr-148946 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzeric%2Fiotunnel" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mzeric/iotunnel [INFO] finished tweaking git repo https://github.com/mzeric/iotunnel [INFO] tweaked toml for git repo https://github.com/mzeric/iotunnel written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mzeric/iotunnel on toolchain 95813608313bff49cfc1afc393a946a3c085b772 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mzeric/iotunnel already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ef6de38802c8ca40da1ce4118e562218e9a1aa68681d1d9db2509011d46d3131 [INFO] running `Command { std: "docker" "start" "-a" "ef6de38802c8ca40da1ce4118e562218e9a1aa68681d1d9db2509011d46d3131", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ef6de38802c8ca40da1ce4118e562218e9a1aa68681d1d9db2509011d46d3131", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef6de38802c8ca40da1ce4118e562218e9a1aa68681d1d9db2509011d46d3131", kill_on_drop: false }` [INFO] [stdout] ef6de38802c8ca40da1ce4118e562218e9a1aa68681d1d9db2509011d46d3131 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c9cb328f71638ca91112f34ee5c3e746baf2efe589b5c3e7ebc73f7584db47ff [INFO] running `Command { std: "docker" "start" "-a" "c9cb328f71638ca91112f34ee5c3e746baf2efe589b5c3e7ebc73f7584db47ff", kill_on_drop: false }` [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Compiling syn v1.0.58 [INFO] [stderr] Compiling libc v0.2.82 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking futures-core v0.3.12 [INFO] [stderr] Checking pin-project-lite v0.2.4 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking futures-io v0.3.12 [INFO] [stderr] Checking subtle v2.4.0 [INFO] [stderr] Compiling standback v0.2.14 [INFO] [stderr] Compiling log v0.4.13 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Compiling serde_derive v1.0.119 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Compiling serde v1.0.119 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Checking event-listener v2.5.1 [INFO] [stderr] Checking fastrand v1.4.0 [INFO] [stderr] Checking vec-arena v1.0.0 [INFO] [stderr] Checking async-task v4.0.3 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling const_fn v0.4.5 [INFO] [stderr] Checking cpuid-bool v0.2.0 [INFO] [stderr] Checking tinyvec v1.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling time v0.2.24 [INFO] [stderr] Checking atomic-waker v1.0.0 [INFO] [stderr] Checking async-channel v1.5.1 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking futures-sink v0.3.12 [INFO] [stderr] Checking async-mutex v1.4.0 [INFO] [stderr] Checking futures-lite v1.11.3 [INFO] [stderr] Checking form_urlencoded v1.0.0 [INFO] [stderr] Checking futures-channel v0.3.12 [INFO] [stderr] Checking futures-task v0.3.12 [INFO] [stderr] Compiling cookie v0.14.3 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Compiling serde_json v1.0.61 [INFO] [stderr] Checking cpuid-bool v0.1.2 [INFO] [stderr] Checking getrandom v0.1.16 [INFO] [stderr] Checking polling v2.0.2 [INFO] [stderr] Checking nb-connect v1.0.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Compiling anyhow v1.0.38 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking async-lock v2.3.0 [INFO] [stderr] Checking base64 v0.12.3 [INFO] [stderr] Compiling http-types v2.9.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking data-encoding v2.3.1 [INFO] [stderr] Checking unicode-normalization v0.1.16 [INFO] [stderr] Checking pin-project-lite v0.1.11 [INFO] [stderr] Checking infer v0.2.3 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking blocking v1.0.2 [INFO] [stderr] Checking async-executor v1.4.0 [INFO] [stderr] Checking async-io v1.3.1 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Checking async-global-executor v2.0.2 [INFO] [stderr] Checking async-std v1.9.0 [INFO] [stderr] Checking cipher v0.2.5 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Checking universal-hash v0.4.0 [INFO] [stderr] Checking crypto-mac v0.10.0 [INFO] [stderr] Checking aead v0.3.2 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking polyval v0.4.5 [INFO] [stderr] Checking hmac v0.10.1 [INFO] [stderr] Checking sha2 v0.9.2 [INFO] [stderr] Checking aes-soft v0.6.4 [INFO] [stderr] Checking ctr v0.6.0 [INFO] [stderr] Checking ghash v0.3.1 [INFO] [stderr] Checking hkdf v0.10.0 [INFO] [stderr] Checking aes v0.6.0 [INFO] [stderr] Checking aes-gcm v0.8.0 [INFO] [stderr] Compiling time-macros-impl v0.1.1 [INFO] [stderr] Compiling thiserror-impl v1.0.23 [INFO] [stderr] Compiling futures-macro v0.3.12 [INFO] [stderr] Checking time-macros v0.1.1 [INFO] [stderr] Checking futures-util v0.3.12 [INFO] [stderr] Checking thiserror v1.0.23 [INFO] [stderr] Checking futures-executor v0.3.12 [INFO] [stderr] Checking futures v0.3.12 [INFO] [stderr] Checking serde_qs v0.7.2 [INFO] [stderr] Checking url v2.2.0 [INFO] [stderr] Checking serde_urlencoded v0.7.0 [INFO] [stderr] Checking iomux v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ReadHalf`, `Read`, `WriteHalf`, `future::select_all`, `future`, and `pin_mut` [INFO] [stdout] --> src/main.rs:11:15 [INFO] [stdout] | [INFO] [stdout] 11 | use futures::{pin_mut, select, future::select_all, future,io::{ReadHalf, WriteHalf, Read},}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^^^^^ ^^^^^^ ^^^^^^^^ ^^^^^^^^^ ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::stream::FusedStream` [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use futures::stream::FusedStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::net::ToSocketAddrs` [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::net::ToSocketAddrs; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:26 [INFO] [stdout] | [INFO] [stdout] 20 | pub async fn read_stream(mut reader: &mut BufReader<&TcpStream>) -> io::Result> { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ReadHalf`, `Read`, `WriteHalf`, `future::select_all`, `future`, and `pin_mut` [INFO] [stdout] --> src/main.rs:11:15 [INFO] [stdout] | [INFO] [stdout] 11 | use futures::{pin_mut, select, future::select_all, future,io::{ReadHalf, WriteHalf, Read},}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^^^^^^^^^^ ^^^^^^ ^^^^^^^^ ^^^^^^^^^ ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::stream::FusedStream` [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use futures::stream::FusedStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::net::ToSocketAddrs` [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::net::ToSocketAddrs; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:20:26 [INFO] [stdout] | [INFO] [stdout] 20 | pub async fn read_stream(mut reader: &mut BufReader<&TcpStream>) -> io::Result> { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:49:25 [INFO] [stdout] | [INFO] [stdout] 49 | pub async fn do_forward(mut stream: TcpStream, up_addr: &str) -> EcResult<()> { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:52:18 [INFO] [stdout] | [INFO] [stdout] 52 | let (reader, mut writer) = (&stream, &stream); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | let mut up_stream = TcpStream::connect(up_addr).await?; [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:58:21 [INFO] [stdout] | [INFO] [stdout] 58 | let (up_reader, mut up_writer) = (&up_stream, &up_stream); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0034]: multiple applicable items in scope [INFO] [stdout] --> src/main.rs:110:39 [INFO] [stdout] | [INFO] [stdout] 110 | while let Some(stream) = incoming.next().await { [INFO] [stdout] | ^^^^ multiple `next` found [INFO] [stdout] | [INFO] [stdout] = note: candidate #1 is defined in an impl of the trait `async_std::stream::StreamExt` for the type `T` [INFO] [stdout] = note: candidate #2 is defined in an impl of the trait `futures::StreamExt` for the type `T` [INFO] [stdout] help: disambiguate the method for candidate #1 [INFO] [stdout] | [INFO] [stdout] 110 - while let Some(stream) = incoming.next().await { [INFO] [stdout] 110 + while let Some(stream) = async_std::stream::StreamExt::next(&mut incoming).await { [INFO] [stdout] | [INFO] [stdout] help: disambiguate the method for candidate #2 [INFO] [stdout] | [INFO] [stdout] 110 - while let Some(stream) = incoming.next().await { [INFO] [stdout] 110 + while let Some(stream) = futures::StreamExt::next(&mut incoming).await { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:49:25 [INFO] [stdout] | [INFO] [stdout] 49 | pub async fn do_forward(mut stream: TcpStream, up_addr: &str) -> EcResult<()> { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:52:18 [INFO] [stdout] | [INFO] [stdout] 52 | let (reader, mut writer) = (&stream, &stream); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | let mut up_stream = TcpStream::connect(up_addr).await?; [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:58:21 [INFO] [stdout] | [INFO] [stdout] 58 | let (up_reader, mut up_writer) = (&up_stream, &up_stream); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `reader` [INFO] [stdout] --> src/main.rs:45:25 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn write_xor_stream(reader: &BufWriter<&TcpStream>, data: &mut Box<[u8]>) -> EcResult<()> { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reader` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:71:25 [INFO] [stdout] | [INFO] [stdout] 71 | let a = String::from_utf8((&data).to_vec()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:83:21 [INFO] [stdout] | [INFO] [stdout] 83 | Err(e) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:91:25 [INFO] [stdout] | [INFO] [stdout] 91 | let a = String::from_utf8((&data).to_vec()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0034]: multiple applicable items in scope [INFO] [stdout] --> src/main.rs:110:39 [INFO] [stdout] | [INFO] [stdout] 110 | while let Some(stream) = incoming.next().await { [INFO] [stdout] | ^^^^ multiple `next` found [INFO] [stdout] | [INFO] [stdout] = note: candidate #1 is defined in an impl of the trait `async_std::stream::StreamExt` for the type `T` [INFO] [stdout] = note: candidate #2 is defined in an impl of the trait `futures::StreamExt` for the type `T` [INFO] [stdout] help: disambiguate the method for candidate #1 [INFO] [stdout] | [INFO] [stdout] 110 - while let Some(stream) = incoming.next().await { [INFO] [stdout] 110 + while let Some(stream) = async_std::stream::StreamExt::next(&mut incoming).await { [INFO] [stdout] | [INFO] [stdout] help: disambiguate the method for candidate #2 [INFO] [stdout] | [INFO] [stdout] 110 - while let Some(stream) = incoming.next().await { [INFO] [stdout] 110 + while let Some(stream) = futures::StreamExt::next(&mut incoming).await { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0034`. [INFO] [stdout] [INFO] [stdout] warning: unused variable: `reader` [INFO] [stdout] --> src/main.rs:45:25 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn write_xor_stream(reader: &BufWriter<&TcpStream>, data: &mut Box<[u8]>) -> EcResult<()> { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reader` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:71:25 [INFO] [stdout] | [INFO] [stdout] 71 | let a = String::from_utf8((&data).to_vec()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:83:21 [INFO] [stdout] | [INFO] [stdout] 83 | Err(e) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:91:25 [INFO] [stdout] | [INFO] [stdout] 91 | let a = String::from_utf8((&data).to_vec()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `iomux` (bin "iomux" test) due to 1 previous error; 13 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] For more information about this error, try `rustc --explain E0034`. [INFO] [stdout] [INFO] [stderr] error: could not compile `iomux` (bin "iomux") due to 1 previous error; 13 warnings emitted [INFO] running `Command { std: "docker" "inspect" "c9cb328f71638ca91112f34ee5c3e746baf2efe589b5c3e7ebc73f7584db47ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9cb328f71638ca91112f34ee5c3e746baf2efe589b5c3e7ebc73f7584db47ff", kill_on_drop: false }` [INFO] [stdout] c9cb328f71638ca91112f34ee5c3e746baf2efe589b5c3e7ebc73f7584db47ff