[INFO] cloning repository https://github.com/kushwahashiv/kafka-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kushwahashiv/kafka-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkushwahashiv%2Fkafka-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkushwahashiv%2Fkafka-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c593ee2691fbfae977f2c3cb03cba15ab3018151
[INFO] testing kushwahashiv/kafka-rust against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkushwahashiv%2Fkafka-rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/kushwahashiv/kafka-rust
[INFO] finished tweaking git repo https://github.com/kushwahashiv/kafka-rust
[INFO] tweaked toml for git repo https://github.com/kushwahashiv/kafka-rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kushwahashiv/kafka-rust on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kushwahashiv/kafka-rust 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 23f7a845318b14b62ac7596f0aacfb492ba44258732e39a7aecb288771abd274
[INFO] running `Command { std: "docker" "start" "23f7a845318b14b62ac7596f0aacfb492ba44258732e39a7aecb288771abd274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23f7a845318b14b62ac7596f0aacfb492ba44258732e39a7aecb288771abd274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "23f7a845318b14b62ac7596f0aacfb492ba44258732e39a7aecb288771abd274" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23f7a845318b14b62ac7596f0aacfb492ba44258732e39a7aecb288771abd274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "23f7a845318b14b62ac7596f0aacfb492ba44258732e39a7aecb288771abd274" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling smallvec v1.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling yansi v0.4.0
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.11
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling lock_api v0.3.2
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling parking_lot_core v0.7.0
[INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.1.2`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_RELEASE_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/release/build/pear_codegen-55141b740a354abc/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Pear requires a nightly or dev version of Rust.
[INFO] [stderr]   Installed version is: 1.99.0-beta.1 (2026-08-17). Minimum required: 1.31.0-nightly (2018-10-05).
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (813) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pear_codegen-0.1.2/build.rs:31:13:
[INFO] [stderr]   Aborting compilation due to incompatible compiler.
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x627892362dc1 - <<std[104cf6e2632825ea]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[7c831bd917ebf35f]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x62789237449a - core[7c831bd917ebf35f]::fmt::write
[INFO] [stderr]      2:     0x627892366e9c - <std[104cf6e2632825ea]::sys::stdio::unix::Stderr as core[7c831bd917ebf35f]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x6278923462e6 - std[104cf6e2632825ea]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x62789235ebd1 - std[104cf6e2632825ea]::panicking::default_hook
[INFO] [stderr]      5:     0x62789235ed8b - std[104cf6e2632825ea]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x62789234594c - std[104cf6e2632825ea]::panicking::begin_panic::<&str>::{closure#0}
[INFO] [stderr]      7:     0x62789233ee69 - std[104cf6e2632825ea]::sys::backtrace::__rust_end_short_backtrace::<std[104cf6e2632825ea]::panicking::begin_panic<&str>::{closure#0}, !>
[INFO] [stderr]      8:     0x62789233c78b - std[104cf6e2632825ea]::panicking::begin_panic::<&str>
[INFO] [stderr]      9:     0x627892326dd9 - build_script_build[7b95c67914204167]::main
[INFO] [stderr]     10:     0x627892327903 - <fn() as core[7c831bd917ebf35f]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     11:     0x627892326506 - std[104cf6e2632825ea]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     12:     0x627892326519 - std[104cf6e2632825ea]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     13:     0x62789235e009 - std[104cf6e2632825ea]::rt::lang_start_internal
[INFO] [stderr]     14:     0x6278923264a1 - std[104cf6e2632825ea]::rt::lang_start::<()>
[INFO] [stderr]     15:     0x627892327975 - main
[INFO] [stderr]     16:     0x71dbf3ccf601 - <unknown>
[INFO] [stderr]     17:     0x71dbf3ccf718 - __libc_start_main
[INFO] [stderr]     18:     0x6278923261d5 - _start
[INFO] [stderr]     19:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "23f7a845318b14b62ac7596f0aacfb492ba44258732e39a7aecb288771abd274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23f7a845318b14b62ac7596f0aacfb492ba44258732e39a7aecb288771abd274", kill_on_drop: false }`
[INFO] [stdout] 23f7a845318b14b62ac7596f0aacfb492ba44258732e39a7aecb288771abd274
