[INFO] fetching crate batch-channel 0.4.3...
[INFO] checking batch-channel-0.4.3 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate batch-channel 0.4.3 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate batch-channel 0.4.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate batch-channel 0.4.3
[INFO] tweaked toml for crates.io crate batch-channel 0.4.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate batch-channel 0.4.3 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate batch-channel 0.4.3 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 926a501aba9176e2c0f35506e27b66edf1ffea890e0d908a1ce5242038cb798d
[INFO] running `Command { std: "docker" "start" "-a" "926a501aba9176e2c0f35506e27b66edf1ffea890e0d908a1ce5242038cb798d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "926a501aba9176e2c0f35506e27b66edf1ffea890e0d908a1ce5242038cb798d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "926a501aba9176e2c0f35506e27b66edf1ffea890e0d908a1ce5242038cb798d", kill_on_drop: false }`
[INFO] [stdout] 926a501aba9176e2c0f35506e27b66edf1ffea890e0d908a1ce5242038cb798d
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b4bbab106d433832eaca5fa1358aa04b79a00f52268e3a7af0193ed5bb6a4a4
[INFO] running `Command { std: "docker" "start" "-a" "4b4bbab106d433832eaca5fa1358aa04b79a00f52268e3a7af0193ed5bb6a4a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]     Checking utf8parse v0.2.2
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[INFO] [stderr]     Checking clap_builder v4.5.37
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[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling clap_derive v4.5.32
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[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking batch-channel v0.4.3 (/opt/rustwide/workdir)
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[INFO] [stderr]     Checking divan v0.1.21
[INFO] [stderr]     Checking polling v3.7.4
[INFO] [stderr]     Checking async-io v2.4.0
[INFO] [stderr]     Checking async-global-executor v2.4.1
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[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stdout] warning: associated constant `HAS_BATCH` is never used
[INFO] [stdout]   --> benches/throughput.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait Channel {
[INFO] [stdout]    |       ------- associated constant in this trait
[INFO] [stdout] 12 |     const HAS_BATCH: bool;
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `HAS_BATCH` is never used
[INFO] [stdout]   --> benches/throughput.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | trait ChannelSync {
[INFO] [stdout]    |       ----------- associated constant in this trait
[INFO] [stdout] 21 |     const HAS_BATCH: bool;
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.16s
[INFO] running `Command { std: "docker" "inspect" "4b4bbab106d433832eaca5fa1358aa04b79a00f52268e3a7af0193ed5bb6a4a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b4bbab106d433832eaca5fa1358aa04b79a00f52268e3a7af0193ed5bb6a4a4", kill_on_drop: false }`
[INFO] [stdout] 4b4bbab106d433832eaca5fa1358aa04b79a00f52268e3a7af0193ed5bb6a4a4