[INFO] cloning repository https://github.com/Binghong-Leo-Li/fusion-framework
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Binghong-Leo-Li/fusion-framework" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBinghong-Leo-Li%2Ffusion-framework", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBinghong-Leo-Li%2Ffusion-framework'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e43df296d0367a266fdb32f0341444da94563f55
[INFO] checking Binghong-Leo-Li/fusion-framework against master#507271bc119683008ec719ecee48814e8ac86c65 for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBinghong-Leo-Li%2Ffusion-framework" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Binghong-Leo-Li/fusion-framework
[INFO] finished tweaking git repo https://github.com/Binghong-Leo-Li/fusion-framework
[INFO] tweaked toml for git repo https://github.com/Binghong-Leo-Li/fusion-framework written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Binghong-Leo-Li/fusion-framework on toolchain 507271bc119683008ec719ecee48814e8ac86c65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 93 packages to latest compatible versions
[INFO] [stderr]       Adding bincode v1.3.3 (available: v3.0.0)
[INFO] [stderr]       Adding hashbrown v0.14.5 (available: v0.17.1)
[INFO] [stderr]       Adding tokio-condvar v0.1.0 (available: v0.3.0)
[INFO] [stderr]       Adding zerocopy v0.7.35 (available: v0.8.48)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-condvar v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b367009533926867cbe4d350a4d5b7817db8422385c4b7922c418c83eea98b6
[INFO] running `Command { std: "docker" "start" "-a" "4b367009533926867cbe4d350a4d5b7817db8422385c4b7922c418c83eea98b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b367009533926867cbe4d350a4d5b7817db8422385c4b7922c418c83eea98b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b367009533926867cbe4d350a4d5b7817db8422385c4b7922c418c83eea98b6", kill_on_drop: false }`
[INFO] [stdout] 4b367009533926867cbe4d350a4d5b7817db8422385c4b7922c418c83eea98b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d0a366afe5f21893c0b385833f55022ba335394fcfdafd4b020d356568ed4b0
[INFO] running `Command { std: "docker" "start" "-a" "6d0a366afe5f21893c0b385833f55022ba335394fcfdafd4b020d356568ed4b0", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.10.1
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]     Checking cpufeatures v0.3.0
[INFO] [stderr]     Checking once_cell v1.21.4
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]     Checking chacha20 v0.10.0
[INFO] [stderr]     Checking rand v0.10.1
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking uuid v1.23.1
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking futures-executor v0.3.32
[INFO] [stderr]     Checking futures v0.3.32
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking tokio-condvar v0.1.0
[INFO] [stderr]     Checking fusion-framework v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]   --> src/datastore.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | use hashbrown::{HashMap, HashSet};
[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 import: `HashSet`
[INFO] [stdout]   --> src/datastore.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | use hashbrown::{HashMap, HashSet};
[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 variable: `data_store`
[INFO] [stdout]    --> src/vertex.rs:374:37
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub async fn remove_self(&self, data_store: &DataStore<T, V>, self_id: VertexID) {
[INFO] [stdout]     |                                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_store`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `self_id`
[INFO] [stdout]    --> src/vertex.rs:374:67
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub async fn remove_self(&self, data_store: &DataStore<T, V>, self_id: VertexID) {
[INFO] [stdout]     |                                                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_self_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `borrowed_in` is never read
[INFO] [stdout]    --> src/vertex.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub struct LocalVertex<T: DeserializeOwned + Serialize + Debug + Default, V: Debug> {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 206 |     borrowed_in: bool,                        // When a node is a borrowed node
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vertex.rs:152:26
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub async fn get_val(&self) -> SafeDataReference<T, V> {
[INFO] [stdout]     |                          ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetimes are hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub async fn get_val(&self) -> SafeDataReference<'_, '_, T, V> {
[INFO] [stdout]     |                                                      +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vertex.rs:284:27
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub async fn get_data(&self) -> SafeDataReference<T, V> {
[INFO] [stdout]     |                           ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetimes are hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub async fn get_data(&self) -> SafeDataReference<'_, '_, T, V> {
[INFO] [stdout]     |                                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_store`
[INFO] [stdout]    --> src/vertex.rs:374:37
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub async fn remove_self(&self, data_store: &DataStore<T, V>, self_id: VertexID) {
[INFO] [stdout]     |                                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_store`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `self_id`
[INFO] [stdout]    --> src/vertex.rs:374:67
[INFO] [stdout]     |
[INFO] [stdout] 374 |     pub async fn remove_self(&self, data_store: &DataStore<T, V>, self_id: VertexID) {
[INFO] [stdout]     |                                                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_self_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `borrowed_in` is never read
[INFO] [stdout]    --> src/vertex.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub struct LocalVertex<T: DeserializeOwned + Serialize + Debug + Default, V: Debug> {
[INFO] [stdout]     |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 206 |     borrowed_in: bool,                        // When a node is a borrowed node
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vertex.rs:152:26
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub async fn get_val(&self) -> SafeDataReference<T, V> {
[INFO] [stdout]     |                          ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetimes are hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub async fn get_val(&self) -> SafeDataReference<'_, '_, T, V> {
[INFO] [stdout]     |                                                      +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/vertex.rs:284:27
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub async fn get_data(&self) -> SafeDataReference<T, V> {
[INFO] [stdout]     |                           ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetimes are hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub async fn get_data(&self) -> SafeDataReference<'_, '_, T, V> {
[INFO] [stdout]     |                                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `NMASInfo`, `NaiveMaxAdjacentSum`, and `SwapLargestAndSmallest`
[INFO] [stdout]   --> src/main.rs:15:39
[INFO] [stdout]    |
[INFO] [stdout] 15 | use fusion_framework::udf::{GraphSum, NMASInfo, NaiveMaxAdjacentSum, SwapLargestAndSmallest};
[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: `NMASInfo`, `NaiveMaxAdjacentSum`, and `SwapLargestAndSmallest`
[INFO] [stdout]   --> src/main.rs:15:39
[INFO] [stdout]    |
[INFO] [stdout] 15 | use fusion_framework::udf::{GraphSum, NMASInfo, NaiveMaxAdjacentSum, SwapLargestAndSmallest};
[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 import: `VertexID`
[INFO] [stdout]   --> src/main.rs:16:49
[INFO] [stdout]    |
[INFO] [stdout] 16 | use fusion_framework::vertex::{Data, MachineID, VertexID};
[INFO] [stdout]    |                                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VertexID`
[INFO] [stdout]   --> src/main.rs:16:49
[INFO] [stdout]    |
[INFO] [stdout] 16 | use fusion_framework::vertex::{Data, MachineID, VertexID};
[INFO] [stdout]    |                                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]   --> src/main.rs:21:26
[INFO] [stdout]    |
[INFO] [stdout] 21 | use hashbrown::{HashMap, HashSet};
[INFO] [stdout]    |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]   --> src/main.rs:21:26
[INFO] [stdout]    |
[INFO] [stdout] 21 | use hashbrown::{HashMap, HashSet};
[INFO] [stdout]    |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let mut stream = Arc::get_mut(&mut stream).unwrap();
[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:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let mut stream = Arc::get_mut(&mut stream).unwrap();
[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:243:25
[INFO] [stdout]     |
[INFO] [stdout] 243 |     let (tx_update_req, mut rx_update_req) = channel::<MachineID>(100);
[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:244:25
[INFO] [stdout]     |
[INFO] [stdout] 244 |     let (tx_update_res, mut rx_update_res) = channel::<()>(100);
[INFO] [stdout]     |                         ----^^^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rx_update_req`
[INFO] [stdout]    --> src/main.rs:243:25
[INFO] [stdout]     |
[INFO] [stdout] 243 |     let (tx_update_req, mut rx_update_req) = channel::<MachineID>(100);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rx_update_req`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rx_update_res`
[INFO] [stdout]    --> src/main.rs:244:25
[INFO] [stdout]     |
[INFO] [stdout] 244 |     let (tx_update_res, mut rx_update_res) = channel::<()>(100);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rx_update_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:243:25
[INFO] [stdout]     |
[INFO] [stdout] 243 |     let (tx_update_req, mut rx_update_req) = channel::<MachineID>(100);
[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:244:25
[INFO] [stdout]     |
[INFO] [stdout] 244 |     let (tx_update_res, mut rx_update_res) = channel::<()>(100);
[INFO] [stdout]     |                         ----^^^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rx_update_req`
[INFO] [stdout]    --> src/main.rs:243:25
[INFO] [stdout]     |
[INFO] [stdout] 243 |     let (tx_update_req, mut rx_update_req) = channel::<MachineID>(100);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rx_update_req`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rx_update_res`
[INFO] [stdout]    --> src/main.rs:244:25
[INFO] [stdout]     |
[INFO] [stdout] 244 |     let (tx_update_res, mut rx_update_res) = channel::<()>(100);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rx_update_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.30s
[INFO] running `Command { std: "docker" "inspect" "6d0a366afe5f21893c0b385833f55022ba335394fcfdafd4b020d356568ed4b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d0a366afe5f21893c0b385833f55022ba335394fcfdafd4b020d356568ed4b0", kill_on_drop: false }`
[INFO] [stdout] 6d0a366afe5f21893c0b385833f55022ba335394fcfdafd4b020d356568ed4b0
