[INFO] cloning repository https://github.com/mattnappo/hypernet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattnappo/hypernet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattnappo%2Fhypernet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattnappo%2Fhypernet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f465bfc4b94fa94c1469da3d01f21feb07c69197
[INFO] checking mattnappo/hypernet against try#95813608313bff49cfc1afc393a946a3c085b772 for pr-148946
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattnappo%2Fhypernet" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mattnappo/hypernet
[INFO] finished tweaking git repo https://github.com/mattnappo/hypernet
[INFO] tweaked toml for git repo https://github.com/mattnappo/hypernet written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mattnappo/hypernet 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/mattnappo/hypernet 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 293362a0beeb1f442430e9a6fbc742ae8a9025f2d5cd6c3e946a3e6420068d2b
[INFO] running `Command { std: "docker" "start" "-a" "293362a0beeb1f442430e9a6fbc742ae8a9025f2d5cd6c3e946a3e6420068d2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "293362a0beeb1f442430e9a6fbc742ae8a9025f2d5cd6c3e946a3e6420068d2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "293362a0beeb1f442430e9a6fbc742ae8a9025f2d5cd6c3e946a3e6420068d2b", kill_on_drop: false }`
[INFO] [stdout] 293362a0beeb1f442430e9a6fbc742ae8a9025f2d5cd6c3e946a3e6420068d2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4f712062b3228babad616328ef2819ef5b9f623542ce08eac82346c55c28b574
[INFO] running `Command { std: "docker" "start" "-a" "4f712062b3228babad616328ef2819ef5b9f623542ce08eac82346c55c28b574", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]     Checking value-bag v1.4.2
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking async-task v4.5.0
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking concurrent-queue v2.3.0
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking rustix v0.37.27
[INFO] [stderr]     Checking async-executor v1.6.0
[INFO] [stderr]     Checking blocking v1.4.1
[INFO] [stderr]     Checking async-global-executor v2.3.1
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]     Checking futures-executor v0.3.29
[INFO] [stderr]     Checking futures v0.3.29
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking hypernet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `async_std::task::spawn`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_std::task::spawn;
[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: `Arc` and `Mutex`
[INFO] [stdout]   --> src/lib.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     sync::{Arc, Mutex},
[INFO] [stdout]    |            ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::task::spawn`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_std::task::spawn;
[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: `Arc` and `Mutex`
[INFO] [stdout]   --> src/lib.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     sync::{Arc, Mutex},
[INFO] [stdout]    |            ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/lib.rs:233:14
[INFO] [stdout]     |
[INFO] [stdout] 233 |             .map(|(id, identity)| async move {
[INFO] [stdout]     |              ^^^ multiple `map` 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] 232 ~         let values = async_std::stream::StreamExt::map(stream::iter(self.addrs.clone()), |(id, identity)| async move {
[INFO] [stdout] 233 +                 // Connect to node
[INFO] [stdout] 234 +                 let mut stream = TcpStream::connect(identity.address).await.unwrap();
[INFO] [stdout] 235 + 
[INFO] [stdout] 236 +                 // Write request
[INFO] [stdout] 237 +                 stream
[INFO] [stdout] 238 +                     .write(&bincode::serialize(&Request::Value).unwrap())
[INFO] [stdout] 239 +                     .await
[INFO] [stdout] 240 +                     .unwrap();
[INFO] [stdout] 241 + 
[INFO] [stdout] 242 +                 // Read response
[INFO] [stdout] 243 +                 let mut buf = [0u8; 1024];
[INFO] [stdout] 244 +                 stream.read(&mut buf).await.unwrap();
[INFO] [stdout] 245 +                 let res: Request = bincode::deserialize(&buf).unwrap();
[INFO] [stdout] 246 +                 match res {
[INFO] [stdout] 247 +                     Request::Message(m) => (id.clone(), m),
[INFO] [stdout] 248 +                     _ => unreachable!(),
[INFO] [stdout] 249 +                 }
[INFO] [stdout] 250 +             })
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the method for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 232 ~         let values = futures::StreamExt::map(stream::iter(self.addrs.clone()), |(id, identity)| async move {
[INFO] [stdout] 233 +                 // Connect to node
[INFO] [stdout] 234 +                 let mut stream = TcpStream::connect(identity.address).await.unwrap();
[INFO] [stdout] 235 + 
[INFO] [stdout] 236 +                 // Write request
[INFO] [stdout] 237 +                 stream
[INFO] [stdout] 238 +                     .write(&bincode::serialize(&Request::Value).unwrap())
[INFO] [stdout] 239 +                     .await
[INFO] [stdout] 240 +                     .unwrap();
[INFO] [stdout] 241 + 
[INFO] [stdout] 242 +                 // Read response
[INFO] [stdout] 243 +                 let mut buf = [0u8; 1024];
[INFO] [stdout] 244 +                 stream.read(&mut buf).await.unwrap();
[INFO] [stdout] 245 +                 let res: Request = bincode::deserialize(&buf).unwrap();
[INFO] [stdout] 246 +                 match res {
[INFO] [stdout] 247 +                     Request::Message(m) => (id.clone(), m),
[INFO] [stdout] 248 +                     _ => unreachable!(),
[INFO] [stdout] 249 +                 }
[INFO] [stdout] 250 +             })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:235:34
[INFO] [stdout]     |
[INFO] [stdout] 235 |                 let mut stream = TcpStream::connect(identity.address).await.unwrap();
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:238:17
[INFO] [stdout]     |
[INFO] [stdout] 238 | /                 stream
[INFO] [stdout] 239 | |                     .write(&bincode::serialize(&Request::Value).unwrap())
[INFO] [stdout] 240 | |                     .await
[INFO] [stdout]     | |__________________________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |                 stream.read(&mut buf).await.unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `(_, {type error})`
[INFO] [stdout]    --> src/lib.rs:233:19
[INFO] [stdout]     |
[INFO] [stdout] 233 |             .map(|(id, identity)| async move {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 248 |                     Request::Message(m) => (id.clone(), m),
[INFO] [stdout]     |                                             -- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type, where the placeholders `_` are specified
[INFO] [stdout]     |
[INFO] [stdout] 233 |             .map(|(id, identity): (_, _)| async move {
[INFO] [stdout]     |                                 ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> src/lib.rs:233:14
[INFO] [stdout]     |
[INFO] [stdout] 233 |             .map(|(id, identity)| async move {
[INFO] [stdout]     |              ^^^ multiple `map` 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] 232 ~         let values = async_std::stream::StreamExt::map(stream::iter(self.addrs.clone()), |(id, identity)| async move {
[INFO] [stdout] 233 +                 // Connect to node
[INFO] [stdout] 234 +                 let mut stream = TcpStream::connect(identity.address).await.unwrap();
[INFO] [stdout] 235 + 
[INFO] [stdout] 236 +                 // Write request
[INFO] [stdout] 237 +                 stream
[INFO] [stdout] 238 +                     .write(&bincode::serialize(&Request::Value).unwrap())
[INFO] [stdout] 239 +                     .await
[INFO] [stdout] 240 +                     .unwrap();
[INFO] [stdout] 241 + 
[INFO] [stdout] 242 +                 // Read response
[INFO] [stdout] 243 +                 let mut buf = [0u8; 1024];
[INFO] [stdout] 244 +                 stream.read(&mut buf).await.unwrap();
[INFO] [stdout] 245 +                 let res: Request = bincode::deserialize(&buf).unwrap();
[INFO] [stdout] 246 +                 match res {
[INFO] [stdout] 247 +                     Request::Message(m) => (id.clone(), m),
[INFO] [stdout] 248 +                     _ => unreachable!(),
[INFO] [stdout] 249 +                 }
[INFO] [stdout] 250 +             })
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the method for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 232 ~         let values = futures::StreamExt::map(stream::iter(self.addrs.clone()), |(id, identity)| async move {
[INFO] [stdout] 233 +                 // Connect to node
[INFO] [stdout] 234 +                 let mut stream = TcpStream::connect(identity.address).await.unwrap();
[INFO] [stdout] 235 + 
[INFO] [stdout] 236 +                 // Write request
[INFO] [stdout] 237 +                 stream
[INFO] [stdout] 238 +                     .write(&bincode::serialize(&Request::Value).unwrap())
[INFO] [stdout] 239 +                     .await
[INFO] [stdout] 240 +                     .unwrap();
[INFO] [stdout] 241 + 
[INFO] [stdout] 242 +                 // Read response
[INFO] [stdout] 243 +                 let mut buf = [0u8; 1024];
[INFO] [stdout] 244 +                 stream.read(&mut buf).await.unwrap();
[INFO] [stdout] 245 +                 let res: Request = bincode::deserialize(&buf).unwrap();
[INFO] [stdout] 246 +                 match res {
[INFO] [stdout] 247 +                     Request::Message(m) => (id.clone(), m),
[INFO] [stdout] 248 +                     _ => unreachable!(),
[INFO] [stdout] 249 +                 }
[INFO] [stdout] 250 +             })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:235:34
[INFO] [stdout]     |
[INFO] [stdout] 235 |                 let mut stream = TcpStream::connect(identity.address).await.unwrap();
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:238:17
[INFO] [stdout]     |
[INFO] [stdout] 238 | /                 stream
[INFO] [stdout] 239 | |                     .write(&bincode::serialize(&Request::Value).unwrap())
[INFO] [stdout] 240 | |                     .await
[INFO] [stdout]     | |__________________________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |                 stream.read(&mut buf).await.unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed for `(_, {type error})`
[INFO] [stdout]    --> src/lib.rs:233:19
[INFO] [stdout]     |
[INFO] [stdout] 233 |             .map(|(id, identity)| async move {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 248 |                     Request::Message(m) => (id.clone(), m),
[INFO] [stdout]     |                                             -- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type, where the placeholders `_` are specified
[INFO] [stdout]     |
[INFO] [stdout] 233 |             .map(|(id, identity): (_, _)| async move {
[INFO] [stdout]     |                                 ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/lib.rs:134:55
[INFO] [stdout]     |
[INFO] [stdout] 134 |     async fn handle(mut stream: TcpStream, data: u32, d: u16) -> Result<(), std::io::Error> {
[INFO] [stdout]     |                                                       ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/lib.rs:134:55
[INFO] [stdout]     |
[INFO] [stdout] 134 |     async fn handle(mut stream: TcpStream, data: u32, d: u16) -> Result<(), std::io::Error> {
[INFO] [stdout]     |                                                       ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]    --> src/lib.rs:271:32
[INFO] [stdout]     |
[INFO] [stdout] 271 |     pub fn broadcast<T>(&self, from: u32, value: T) {}
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:271:43
[INFO] [stdout]     |
[INFO] [stdout] 271 |     pub fn broadcast<T>(&self, from: u32, value: T) {}
[INFO] [stdout]     |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]    --> src/lib.rs:271:32
[INFO] [stdout]     |
[INFO] [stdout] 271 |     pub fn broadcast<T>(&self, from: u32, value: T) {}
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/lib.rs:271:43
[INFO] [stdout]     |
[INFO] [stdout] 271 |     pub fn broadcast<T>(&self, from: u32, value: T) {}
[INFO] [stdout]     |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0034, E0282.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0034, E0282.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hypernet` (lib) due to 5 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hypernet` (lib test) due to 5 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4f712062b3228babad616328ef2819ef5b9f623542ce08eac82346c55c28b574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f712062b3228babad616328ef2819ef5b9f623542ce08eac82346c55c28b574", kill_on_drop: false }`
[INFO] [stdout] 4f712062b3228babad616328ef2819ef5b9f623542ce08eac82346c55c28b574
