[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] fe483a7ebe7ecb27bbc05d523fd792616698f057
[INFO] checking benhirsch24/iouring_bench against try#54e27f559f23913c1d5afb1a0f0114e9e61b81b8 for pr-147589
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenhirsch24%2Fiouring_bench" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-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-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/benhirsch24/iouring_bench on toolchain 54e27f559f23913c1d5afb1a0f0114e9e61b81b8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "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" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fbf85a9cba1ebd5338226a7bbac041968bb530d1bdf3d3dc14a36a6c8c6fcfa
[INFO] running `Command { std: "docker" "start" "-a" "2fbf85a9cba1ebd5338226a7bbac041968bb530d1bdf3d3dc14a36a6c8c6fcfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fbf85a9cba1ebd5338226a7bbac041968bb530d1bdf3d3dc14a36a6c8c6fcfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fbf85a9cba1ebd5338226a7bbac041968bb530d1bdf3d3dc14a36a6c8c6fcfa", kill_on_drop: false }`
[INFO] [stdout] 2fbf85a9cba1ebd5338226a7bbac041968bb530d1bdf3d3dc14a36a6c8c6fcfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 522d15f99b81351443fbe4d5a688059e0b20522d6e3509b5bfec8d76fbad888e
[INFO] running `Command { std: "docker" "start" "-a" "522d15f99b81351443fbe4d5a688059e0b20522d6e3509b5bfec8d76fbad888e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling anstyle-query v1.1.4
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking lock_api v0.4.13
[INFO] [stderr]     Checking anstream v0.6.20
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling clap_lex v0.7.5
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]     Checking unicode-ident v1.0.19
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]     Checking clap_builder v4.5.48
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]    Compiling glommio v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking cache-padded v1.3.0
[INFO] [stderr]     Checking rustc-demangle v0.1.26
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling io-uring v0.7.10
[INFO] [stderr]     Checking owned-alloc v0.2.0
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking lockfree v0.5.1
[INFO] [stderr]     Checking concurrent-queue v1.2.4
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking intrusive-collections v0.9.7
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking sketches-ddsketch v0.1.3
[INFO] [stderr]     Checking enclose v1.2.1
[INFO] [stderr]     Checking jiff v0.2.15
[INFO] [stderr]     Checking bitmaps v3.2.1
[INFO] [stderr]     Checking buddy-alloc v0.4.2
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]     Checking env_filter v0.1.3
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking socket2 v0.6.0
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking rlimit v0.6.2
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking addr2line v0.25.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling clap_derive v4.5.47
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]    Compiling lazy-regex-proc_macros v2.4.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking histogram v0.11.3
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling lazy-regex v2.5.0
[INFO] [stderr]     Checking env_logger v0.11.8
[INFO] [stderr]     Checking backtrace v0.3.76
[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]     Checking iouring_bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/bin/tokio.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout]  44 | /         loop {
[INFO] [stdout]  45 | |             let (mut stream, _) = listener.accept().await?;
[INFO] [stdout]  46 | |             let cache = cache.clone();
[INFO] [stdout]  47 | |             spawn_local(async move {
[INFO] [stdout] ...   |
[INFO] [stdout] 103 | |             });
[INFO] [stdout] 104 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 105 |           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]    --> src/bin/tokio.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout]  44 | /         loop {
[INFO] [stdout]  45 | |             let (mut stream, _) = listener.accept().await?;
[INFO] [stdout]  46 | |             let cache = cache.clone();
[INFO] [stdout]  47 | |             spawn_local(async move {
[INFO] [stdout] ...   |
[INFO] [stdout] 103 | |             });
[INFO] [stdout] 104 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 105 |           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 `dev` profile [unoptimized + debuginfo] target(s) in 33.70s
[INFO] running `Command { std: "docker" "inspect" "522d15f99b81351443fbe4d5a688059e0b20522d6e3509b5bfec8d76fbad888e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "522d15f99b81351443fbe4d5a688059e0b20522d6e3509b5bfec8d76fbad888e", kill_on_drop: false }`
[INFO] [stdout] 522d15f99b81351443fbe4d5a688059e0b20522d6e3509b5bfec8d76fbad888e