[INFO] fetching crate rusocks 0.0.7...
[INFO] testing rusocks-0.0.7 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rusocks 0.0.7 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rusocks 0.0.7
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rusocks 0.0.7
[INFO] tweaked toml for crates.io crate rusocks 0.0.7 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusocks 0.0.7 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rusocks 0.0.7 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8284495dd7e2129cfc7b530a228c45e8f92c49d1a87a4f69bd69b1ed6f376c16
[INFO] running `Command { std: "docker" "start" "-a" "8284495dd7e2129cfc7b530a228c45e8f92c49d1a87a4f69bd69b1ed6f376c16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8284495dd7e2129cfc7b530a228c45e8f92c49d1a87a4f69bd69b1ed6f376c16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8284495dd7e2129cfc7b530a228c45e8f92c49d1a87a4f69bd69b1ed6f376c16", kill_on_drop: false }`
[INFO] [stdout] 8284495dd7e2129cfc7b530a228c45e8f92c49d1a87a4f69bd69b1ed6f376c16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a4bdeb6e49d7b8c9e2f77d5db96df55c1905d030ed1adfa52605b554ef31e55
[INFO] running `Command { std: "docker" "start" "-a" "0a4bdeb6e49d7b8c9e2f77d5db96df55c1905d030ed1adfa52605b554ef31e55", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling thiserror v2.0.1
[INFO] [stderr]    Compiling bytes v1.8.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling tokio v1.41.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.1
[INFO] [stderr]    Compiling async-trait v0.1.83
[INFO] [stderr]    Compiling rusocks v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.50s
[INFO] running `Command { std: "docker" "inspect" "0a4bdeb6e49d7b8c9e2f77d5db96df55c1905d030ed1adfa52605b554ef31e55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a4bdeb6e49d7b8c9e2f77d5db96df55c1905d030ed1adfa52605b554ef31e55", kill_on_drop: false }`
[INFO] [stdout] 0a4bdeb6e49d7b8c9e2f77d5db96df55c1905d030ed1adfa52605b554ef31e55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49451a935f21f47958702cb36385b76cc94659b14220de985778fb06ddb48e56
[INFO] running `Command { std: "docker" "start" "-a" "49451a935f21f47958702cb36385b76cc94659b14220de985778fb06ddb48e56", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling tokio v1.41.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling rusocks v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> examples/bind4.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     loop {
[INFO] [stdout] 15 | |         let n = reader.read(&mut buf).await?;
[INFO] [stdout] 16 | |         println!("{} {:?}", r, n);
[INFO] [stdout] 17 | |         if n == 0 {
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |         writer.write_all(&buf[..n]).await?;
[INFO] [stdout] 22 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 23 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio::sync::Mutex`
[INFO] [stdout]  --> examples/a.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio::sync::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^ no `Mutex` in `sync`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct instead
[INFO] [stdout]   |
[INFO] [stdout] 8 - use tokio::sync::Mutex;
[INFO] [stdout] 8 + use std::sync::Mutex;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `sync` is private
[INFO] [stdout]    --> examples/a.rs:8:12
[INFO] [stdout]     |
[INFO] [stdout]   8 | use tokio::sync::Mutex;
[INFO] [stdout]     |            ^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `sync` is defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.41.1/src/lib.rs:546:5
[INFO] [stdout]     |
[INFO] [stdout] 546 |     mod sync;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future::join_all`
[INFO] [stdout]  --> examples/a.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::future::join_all;
[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: `SocketAddr`
[INFO] [stdout]  --> examples/a.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::net::{IpAddr, Ipv4Addr, SocketAddr};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> examples/a.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | /     loop {
[INFO] [stdout] 148 | |         let n = reader.read(&mut buf).await?;
[INFO] [stdout] 149 | |         println!("{} {:?}", r, n);
[INFO] [stdout] 150 | |         if n == 0 {
[INFO] [stdout] ...   |
[INFO] [stdout] 154 | |         writer.write_all(&buf[..n]).await?;
[INFO] [stdout] 155 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 156 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/a.rs:22:14
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let (mut client_socket, client_addr) = listener.accept().await?;
[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] Some errors have detailed explanations: E0432, E0603.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusocks` (example "a") due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "49451a935f21f47958702cb36385b76cc94659b14220de985778fb06ddb48e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49451a935f21f47958702cb36385b76cc94659b14220de985778fb06ddb48e56", kill_on_drop: false }`
[INFO] [stdout] 49451a935f21f47958702cb36385b76cc94659b14220de985778fb06ddb48e56
