[INFO] cloning repository https://github.com/benhirsch24/iouring_bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benhirsch24/iouring_bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenhirsch24%2Fiouring_bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenhirsch24%2Fiouring_bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aabceee7c1b44d3d19e5b2cfe2a39a97eade8e13
[INFO] testing benhirsch24/iouring_bench against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenhirsch24%2Fiouring_bench" "/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/benhirsch24/iouring_bench
[INFO] finished tweaking git repo https://github.com/benhirsch24/iouring_bench
[INFO] tweaked toml for git repo https://github.com/benhirsch24/iouring_bench written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/benhirsch24/iouring_bench on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/benhirsch24/iouring_bench 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-2026-03-05" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae8164fd8ec9bcd4824e06fc7dc5306972ec27cc8562b13fa4d70e47959a8c29
[INFO] running `Command { std: "docker" "start" "-a" "ae8164fd8ec9bcd4824e06fc7dc5306972ec27cc8562b13fa4d70e47959a8c29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae8164fd8ec9bcd4824e06fc7dc5306972ec27cc8562b13fa4d70e47959a8c29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae8164fd8ec9bcd4824e06fc7dc5306972ec27cc8562b13fa4d70e47959a8c29", kill_on_drop: false }`
[INFO] [stdout] ae8164fd8ec9bcd4824e06fc7dc5306972ec27cc8562b13fa4d70e47959a8c29
[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=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-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f16476a15baf81ce66dcb933edd662e1fc125faf777400bdf28f5b8a23271f5b
[INFO] running `Command { std: "docker" "start" "-a" "f16476a15baf81ce66dcb933edd662e1fc125faf777400bdf28f5b8a23271f5b", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tokio v1.47.1
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[INFO] [stderr]    Compiling thiserror v2.0.17
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[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling histogram v0.11.3
[INFO] [stderr]    Compiling clap v4.5.48
[INFO] [stderr]    Compiling duration-human v0.1.10
[INFO] [stderr]    Compiling clap-duration v0.1.11
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling twoio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.60s
[INFO] running `Command { std: "docker" "inspect" "f16476a15baf81ce66dcb933edd662e1fc125faf777400bdf28f5b8a23271f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f16476a15baf81ce66dcb933edd662e1fc125faf777400bdf28f5b8a23271f5b", kill_on_drop: false }`
[INFO] [stdout] f16476a15baf81ce66dcb933edd662e1fc125faf777400bdf28f5b8a23271f5b
[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=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-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce6cdfc769c6b06fc9decd8b24650e089997e4280041905430f9555b6abb768f
[INFO] running `Command { std: "docker" "start" "-a" "ce6cdfc769c6b06fc9decd8b24650e089997e4280041905430f9555b6abb768f", kill_on_drop: false }`
[INFO] [stderr]    Compiling twoio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> examples/pubsub_server_tokio.rs:367:9
[INFO] [stdout]     |
[INFO] [stdout] 333 | /         loop {
[INFO] [stdout] 334 | |             debug!("Accepting");
[INFO] [stdout] 335 | |             let (stream, _) = listener.accept().await.unwrap();
[INFO] [stdout] 336 | |             let subscribers = subscribers.clone();
[INFO] [stdout] ...   |
[INFO] [stdout] 364 | |             });
[INFO] [stdout] 365 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 366 |
[INFO] [stdout] 367 |           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: unreachable expression
[INFO] [stdout]    --> examples/tokio.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout]  50 | /         loop {
[INFO] [stdout]  51 | |             let (mut stream, _) = listener.accept().await?;
[INFO] [stdout]  52 | |             let cache = cache.clone();
[INFO] [stdout]  53 | |             spawn_local(async move {
[INFO] [stdout] ...   |
[INFO] [stdout] 118 | |             });
[INFO] [stdout] 119 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 120 |           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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.84s
[INFO] running `Command { std: "docker" "inspect" "ce6cdfc769c6b06fc9decd8b24650e089997e4280041905430f9555b6abb768f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce6cdfc769c6b06fc9decd8b24650e089997e4280041905430f9555b6abb768f", kill_on_drop: false }`
[INFO] [stdout] ce6cdfc769c6b06fc9decd8b24650e089997e4280041905430f9555b6abb768f
[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=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-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8ab229717f81014f90c75e68af50b41540e6d7be47606a55fdd723da4b7325ce
[INFO] running `Command { std: "docker" "start" "-a" "8ab229717f81014f90c75e68af50b41540e6d7be47606a55fdd723da4b7325ce", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> examples/pubsub_server_tokio.rs:367:9
[INFO] [stderr]     |
[INFO] [stderr] 333 | /         loop {
[INFO] [stderr] 334 | |             debug!("Accepting");
[INFO] [stderr] 335 | |             let (stream, _) = listener.accept().await.unwrap();
[INFO] [stderr] 336 | |             let subscribers = subscribers.clone();
[INFO] [stderr] ...   |
[INFO] [stderr] 364 | |             });
[INFO] [stderr] 365 | |         }
[INFO] [stderr]     | |_________- any code following this expression is unreachable
[INFO] [stderr] 366 |
[INFO] [stderr] 367 |           Ok(())
[INFO] [stderr]     |           ^^^^^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> examples/tokio.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr]  50 | /         loop {
[INFO] [stderr]  51 | |             let (mut stream, _) = listener.accept().await?;
[INFO] [stderr]  52 | |             let cache = cache.clone();
[INFO] [stderr]  53 | |             spawn_local(async move {
[INFO] [stderr] ...   |
[INFO] [stderr] 118 | |             });
[INFO] [stderr] 119 | |         }
[INFO] [stderr]     | |_________- any code following this expression is unreachable
[INFO] [stderr] 120 |           Ok(())
[INFO] [stderr]     |           ^^^^^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `twoio` (example "pubsub_server_tokio") generated 1 warning
[INFO] [stderr] warning: `twoio` (example "tokio") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/twoio-69d6983d46ed828c)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests twoio
[INFO] [stdout] test executor::tests::ready_queue_budget_limits_processing ... ok
[INFO] [stdout] test executor::tests::test1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8ab229717f81014f90c75e68af50b41540e6d7be47606a55fdd723da4b7325ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ab229717f81014f90c75e68af50b41540e6d7be47606a55fdd723da4b7325ce", kill_on_drop: false }`
[INFO] [stdout] 8ab229717f81014f90c75e68af50b41540e6d7be47606a55fdd723da4b7325ce
