[INFO] fetching crate rperf 0.1.25...
[INFO] testing rperf-0.1.25 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rperf 0.1.25 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rperf 0.1.25
[INFO] finished tweaking crates.io crate rperf 0.1.25
[INFO] tweaked toml for crates.io crate rperf 0.1.25 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rperf 0.1.25 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 rperf 0.1.25 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-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-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e22af5568e5b7cef81fa433e3121a0809e53dba8f8b0c54bbfb344fddce926aa
[INFO] running `Command { std: "docker" "start" "-a" "e22af5568e5b7cef81fa433e3121a0809e53dba8f8b0c54bbfb344fddce926aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e22af5568e5b7cef81fa433e3121a0809e53dba8f8b0c54bbfb344fddce926aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e22af5568e5b7cef81fa433e3121a0809e53dba8f8b0c54bbfb344fddce926aa", kill_on_drop: false }`
[INFO] [stdout] e22af5568e5b7cef81fa433e3121a0809e53dba8f8b0c54bbfb344fddce926aa
[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-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b34419204bae2ec0d9400fa41550be016fc5c1d8194bee32b4aba31f284f453
[INFO] running `Command { std: "docker" "start" "-a" "7b34419204bae2ec0d9400fa41550be016fc5c1d8194bee32b4aba31f284f453", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling humantime v2.2.0
[INFO] [stderr]    Compiling simple-error v0.2.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling chrono v0.4.40
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling net2 v0.2.39
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling nix v0.20.2
[INFO] [stderr]    Compiling clap v2.33.4
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling core_affinity v0.5.10
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling ctrlc v3.4.5
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling rperf v0.1.25 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/client.rs:152:45
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> =
[INFO] [stdout]     |                                             ^                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 152 -     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> =
[INFO] [stdout] 152 +     let mut parallel_streams: Vec<Arc<Mutex<dyn TestStream + Sync + Send>>> =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/server.rs:62:45
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> = Vec::new();
[INFO] [stdout]    |                                             ^                            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 62 -     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> = Vec::new();
[INFO] [stdout] 62 +     let mut parallel_streams: Vec<Arc<Mutex<dyn TestStream + Sync + Send>>> = Vec::new();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.24s
[INFO] running `Command { std: "docker" "inspect" "7b34419204bae2ec0d9400fa41550be016fc5c1d8194bee32b4aba31f284f453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b34419204bae2ec0d9400fa41550be016fc5c1d8194bee32b4aba31f284f453", kill_on_drop: false }`
[INFO] [stdout] 7b34419204bae2ec0d9400fa41550be016fc5c1d8194bee32b4aba31f284f453
[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-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba4d2a51ba74437c2fb7d98a3cca67fcd308fd48d708ce8b02938b16baf3712a
[INFO] running `Command { std: "docker" "start" "-a" "ba4d2a51ba74437c2fb7d98a3cca67fcd308fd48d708ce8b02938b16baf3712a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rperf v0.1.25 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/client.rs:152:45
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> =
[INFO] [stdout]     |                                             ^                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 152 -     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> =
[INFO] [stdout] 152 +     let mut parallel_streams: Vec<Arc<Mutex<dyn TestStream + Sync + Send>>> =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/server.rs:62:45
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> = Vec::new();
[INFO] [stdout]    |                                             ^                            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 62 -     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> = Vec::new();
[INFO] [stdout] 62 +     let mut parallel_streams: Vec<Arc<Mutex<dyn TestStream + Sync + Send>>> = Vec::new();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/client.rs:152:45
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> =
[INFO] [stdout]     |                                             ^                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 152 -     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> =
[INFO] [stdout] 152 +     let mut parallel_streams: Vec<Arc<Mutex<dyn TestStream + Sync + Send>>> =
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/server.rs:62:45
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> = Vec::new();
[INFO] [stdout]    |                                             ^                            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 62 -     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> = Vec::new();
[INFO] [stdout] 62 +     let mut parallel_streams: Vec<Arc<Mutex<dyn TestStream + Sync + Send>>> = Vec::new();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "ba4d2a51ba74437c2fb7d98a3cca67fcd308fd48d708ce8b02938b16baf3712a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba4d2a51ba74437c2fb7d98a3cca67fcd308fd48d708ce8b02938b16baf3712a", kill_on_drop: false }`
[INFO] [stdout] ba4d2a51ba74437c2fb7d98a3cca67fcd308fd48d708ce8b02938b16baf3712a
[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-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] adb92126a5f4f81994c8e2961a37f4cf7d5b0733c37f50fcfabb2594308f6c4c
[INFO] running `Command { std: "docker" "start" "-a" "adb92126a5f4f81994c8e2961a37f4cf7d5b0733c37f50fcfabb2594308f6c4c", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/client.rs:152:45
[INFO] [stderr]     |
[INFO] [stderr] 152 |     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> =
[INFO] [stderr]     |                                             ^                            ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 152 -     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> =
[INFO] [stderr] 152 +     let mut parallel_streams: Vec<Arc<Mutex<dyn TestStream + Sync + Send>>> =
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/server.rs:62:45
[INFO] [stderr]    |
[INFO] [stderr] 62 |     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> = Vec::new();
[INFO] [stderr]    |                                             ^                            ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 62 -     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> = Vec::new();
[INFO] [stderr] 62 +     let mut parallel_streams: Vec<Arc<Mutex<dyn TestStream + Sync + Send>>> = Vec::new();
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `rperf` (lib) generated 2 warnings (run `cargo fix --lib -p rperf` to apply 2 suggestions)
[INFO] [stderr] warning: `rperf` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rperf-dffcfda62c0e4b29)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rperf-d81d346d70b80980)
[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] [stderr]    Doc-tests rperf
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/client.rs:152:45
[INFO] [stderr]     |
[INFO] [stderr] 152 |     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> =
[INFO] [stderr]     |                                             ^                            ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 152 -     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> =
[INFO] [stderr] 152 +     let mut parallel_streams: Vec<Arc<Mutex<dyn TestStream + Sync + Send>>> =
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/server.rs:62:45
[INFO] [stderr]    |
[INFO] [stderr] 62 |     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> = Vec::new();
[INFO] [stderr]    |                                             ^                            ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 62 -     let mut parallel_streams: Vec<Arc<Mutex<(dyn TestStream + Sync + Send)>>> = Vec::new();
[INFO] [stderr] 62 +     let mut parallel_streams: Vec<Arc<Mutex<dyn TestStream + Sync + Send>>> = Vec::new();
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[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" "adb92126a5f4f81994c8e2961a37f4cf7d5b0733c37f50fcfabb2594308f6c4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb92126a5f4f81994c8e2961a37f4cf7d5b0733c37f50fcfabb2594308f6c4c", kill_on_drop: false }`
[INFO] [stdout] adb92126a5f4f81994c8e2961a37f4cf7d5b0733c37f50fcfabb2594308f6c4c
