[INFO] fetching crate zrpc 0.8.16...
[INFO] testing zrpc-0.8.16 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate zrpc 0.8.16 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate zrpc 0.8.16
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate zrpc 0.8.16
[INFO] tweaked toml for crates.io crate zrpc 0.8.16 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zrpc 0.8.16 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 zrpc 0.8.16 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a03908afdca870749d3b9fa114c51479c345e47c36d04f4eb2bdea4c700b3295
[INFO] running `Command { std: "docker" "start" "-a" "a03908afdca870749d3b9fa114c51479c345e47c36d04f4eb2bdea4c700b3295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a03908afdca870749d3b9fa114c51479c345e47c36d04f4eb2bdea4c700b3295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a03908afdca870749d3b9fa114c51479c345e47c36d04f4eb2bdea4c700b3295", kill_on_drop: false }`
[INFO] [stdout] a03908afdca870749d3b9fa114c51479c345e47c36d04f4eb2bdea4c700b3295
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2e02eff21e1fc4ddb5feb1995eb4bbff30d7a7e8ce0ede083d301197b1eac9e1
[INFO] running `Command { std: "docker" "start" "-a" "2e02eff21e1fc4ddb5feb1995eb4bbff30d7a7e8ce0ede083d301197b1eac9e1", kill_on_drop: false }`
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[INFO] [stderr]    Compiling zrpc v0.8.16 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 55.87s
[INFO] running `Command { std: "docker" "inspect" "2e02eff21e1fc4ddb5feb1995eb4bbff30d7a7e8ce0ede083d301197b1eac9e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e02eff21e1fc4ddb5feb1995eb4bbff30d7a7e8ce0ede083d301197b1eac9e1", kill_on_drop: false }`
[INFO] [stdout] 2e02eff21e1fc4ddb5feb1995eb4bbff30d7a7e8ce0ede083d301197b1eac9e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6375f16cc8232ad0fc78db850d9ab94ca1225f32196b9e8e5eab1f730c7d0af7
[INFO] running `Command { std: "docker" "start" "-a" "6375f16cc8232ad0fc78db850d9ab94ca1225f32196b9e8e5eab1f730c7d0af7", kill_on_drop: false }`
[INFO] [stderr]    Compiling zrpc v0.8.16 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `stdin` in module `tokio::io`
[INFO] [stdout]    --> examples/check-servers.rs:142:16
[INFO] [stdout]     |
[INFO] [stdout] 142 |     tokio::io::stdin().read_exact(buffer).await.unwrap();
[INFO] [stdout]     |                ^^^^^ not found in `tokio::io`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.51.0/src/io/mod.rs:270:9
[INFO] [stdout]     |
[INFO] [stdout] 270 |     mod stdin;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.51.0/src/macros/cfg.rs:233:19
[INFO] [stdout]     |
[INFO] [stdout] 233 |             #[cfg(feature = "io-std")]
[INFO] [stdout]     |                   ------------------ the item is gated behind the `io-std` feature
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.51.0/src/io/mod.rs:271:21
[INFO] [stdout]     |
[INFO] [stdout] 271 |     pub use stdin::{stdin, Stdin};
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.51.0/src/macros/cfg.rs:233:19
[INFO] [stdout]     |
[INFO] [stdout] 233 |             #[cfg(feature = "io-std")]
[INFO] [stdout]     |                   ------------------ the item is gated behind the `io-std` feature
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout]  13 + use std::io::stdin;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `stdin`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 142 -     tokio::io::stdin().read_exact(buffer).await.unwrap();
[INFO] [stdout] 142 +     stdin().read_exact(buffer).await.unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zrpc` (example "check-servers") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6375f16cc8232ad0fc78db850d9ab94ca1225f32196b9e8e5eab1f730c7d0af7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6375f16cc8232ad0fc78db850d9ab94ca1225f32196b9e8e5eab1f730c7d0af7", kill_on_drop: false }`
[INFO] [stdout] 6375f16cc8232ad0fc78db850d9ab94ca1225f32196b9e8e5eab1f730c7d0af7
