[INFO] fetching crate serde_rustler 0.1.0...
[INFO] testing serde_rustler-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate serde_rustler 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate serde_rustler 0.1.0
[INFO] finished tweaking crates.io crate serde_rustler 0.1.0
[INFO] tweaked toml for crates.io crate serde_rustler 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_rustler 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 33 packages to latest compatible versions
[INFO] [stderr]       Adding quick-error v1.2.3 (available: v2.0.1)
[INFO] [stderr]       Adding rustler v0.21.1 (available: v0.37.0)
[INFO] [stderr]       Adding rustler_codegen v0.21.1 (available: v0.37.0)
[INFO] [stderr]       Adding rustler_sys v2.1.1 (available: v2.4.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f4732f3e1a11c99b711972f07e41219af527ff3496f74830650673bd56a2574
[INFO] running `Command { std: "docker" "start" "-a" "2f4732f3e1a11c99b711972f07e41219af527ff3496f74830650673bd56a2574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f4732f3e1a11c99b711972f07e41219af527ff3496f74830650673bd56a2574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f4732f3e1a11c99b711972f07e41219af527ff3496f74830650673bd56a2574", kill_on_drop: false }`
[INFO] [stdout] 2f4732f3e1a11c99b711972f07e41219af527ff3496f74830650673bd56a2574
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d81ff8e52886a22ed02054548f0ea3535a295fd28762a0728874507c44362933
[INFO] running `Command { std: "docker" "start" "-a" "d81ff8e52886a22ed02054548f0ea3535a295fd28762a0728874507c44362933", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling rustler_sys v2.1.1
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling rustler_codegen v0.21.1
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling rustler v0.21.1
[INFO] [stderr] error: failed to run custom build command for `rustler v0.21.1`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_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/debug/build/rustler-8dad466886313877/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (340) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustler-0.21.1/build.rs:28:28:
[INFO] [stderr]   expected to find 'erl' executable: Error { inner:    0: failure::backtrace::internal::InternalBacktrace::new
[INFO] [stderr]      1: failure::backtrace::Backtrace::new
[INFO] [stderr]      2: failure::context::Context<D>::new
[INFO] [stderr]      3: <which::error::Error as core::convert::From<which::error::ErrorKind>>::from
[INFO] [stderr]      4: <T as core::convert::Into<U>>::into
[INFO] [stderr]      5: which::finder::Finder::find
[INFO] [stderr]      6: which::which_in
[INFO] [stderr]      7: which::which
[INFO] [stderr]      8: build_script_build::get_version_from_erl
[INFO] [stderr]      9: build_script_build::main
[INFO] [stderr]     10: core::ops::function::FnOnce::call_once
[INFO] [stderr]     11: std::sys::backtrace::__rust_begin_short_backtrace
[INFO] [stderr]     12: std::rt::lang_start::{{closure}}
[INFO] [stderr]     13: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
[INFO] [stderr]                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:287:21
[INFO] [stderr]         std::panicking::catch_unwind::do_call
[INFO] [stderr]                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stderr]         std::panicking::catch_unwind
[INFO] [stderr]                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stderr]         std::panic::catch_unwind
[INFO] [stderr]                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stderr]         std::rt::lang_start_internal::{{closure}}
[INFO] [stderr]                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:175:24
[INFO] [stderr]         std::panicking::catch_unwind::do_call
[INFO] [stderr]                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stderr]         std::panicking::catch_unwind
[INFO] [stderr]                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stderr]         std::panic::catch_unwind
[INFO] [stderr]                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stderr]         std::rt::lang_start_internal
[INFO] [stderr]                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:171:5
[INFO] [stderr]     14: std::rt::lang_start
[INFO] [stderr]     15: main
[INFO] [stderr]     16: <unknown>
[INFO] [stderr]     17: __libc_start_main
[INFO] [stderr]     18: _start
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   Cannot find binary path }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x605f2ee95232 - std::backtrace_rs::backtrace::libunwind::trace::h16acf28769fcd909
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x605f2ee95232 - std::backtrace_rs::backtrace::trace_unsynchronized::hb5541aa5d4f92513
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x605f2ee95232 - std::sys::backtrace::_print_fmt::h8ac8268cb667a306
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x605f2ee95232 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h47627beda0767f4c
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x605f2eea499f - core::fmt::rt::Argument::fmt::h686a01ad57c1c92a
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x605f2eea499f - core::fmt::write::h8a63064c67176fd8
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x605f2ee6b283 - std::io::default_write_fmt::hc257f38f86d39af6
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x605f2ee6b283 - std::io::Write::write_fmt::h5e9b646cef91150b
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x605f2ee74ad2 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x605f2ee76b4c - std::panicking::default_hook::{{closure}}::h23e0299d4738b766
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x605f2ee769a6 - std::panicking::default_hook::hfeec6294e8751b62
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x605f2ee77125 - std::panicking::panic_with_hook::hd57cd463d793ed79
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x605f2ee76fba - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x605f2ee74c09 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x605f2ee5fbad - __rustc[256c90bb7e548b45]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x605f2eea8300 - core::panicking::panic_fmt::hf19c198748ef6a95
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x605f2eea78b6 - core::result::unwrap_failed::he81173b5792ad6b0
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/result.rs:1862:5
[INFO] [stderr]     17:     0x605f2eda07da - core::result::Result<T,E>::expect::hf12f15c1cdcaca7e
[INFO] [stderr]     18:     0x605f2ed9ea5e - build_script_build::get_version_from_erl::h6f532029109e359e
[INFO] [stderr]     19:     0x605f2ed9ee4f - build_script_build::main::h5f7f5a579c79fb94
[INFO] [stderr]     20:     0x605f2ed9ad23 - core::ops::function::FnOnce::call_once::ha75b305c6b17526a
[INFO] [stderr]     21:     0x605f2ed9f086 - std::sys::backtrace::__rust_begin_short_backtrace::h4ee8d15cc9a6e608
[INFO] [stderr]     22:     0x605f2ed9ef79 - std::rt::lang_start::{{closure}}::h5ad90e78c7dbd97b
[INFO] [stderr]     23:     0x605f2ee6cb40 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hdf957eac011d0136
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x605f2ee6cb40 - std::panicking::catch_unwind::do_call::h9ff550f7799115e1
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stderr]     25:     0x605f2ee6cb40 - std::panicking::catch_unwind::ha7ce46787bb12905
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stderr]     26:     0x605f2ee6cb40 - std::panic::catch_unwind::h625b36596def7d39
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x605f2ee6cb40 - std::rt::lang_start_internal::{{closure}}::h4cbc9430de699e2c
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x605f2ee6cb40 - std::panicking::catch_unwind::do_call::h5af2f11409a22e3e
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stderr]     29:     0x605f2ee6cb40 - std::panicking::catch_unwind::hf64cf7b0d8070f52
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stderr]     30:     0x605f2ee6cb40 - std::panic::catch_unwind::h480b74763390cdcf
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x605f2ee6cb40 - std::rt::lang_start_internal::h4b3d04f698aef094
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x605f2ed9ef61 - std::rt::lang_start::hee966346d7681808
[INFO] [stderr]     33:     0x605f2eda32b5 - main
[INFO] [stderr]     34:     0x721cc6ac41ca - <unknown>
[INFO] [stderr]     35:     0x721cc6ac428b - __libc_start_main
[INFO] [stderr]     36:     0x605f2ed99f45 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "d81ff8e52886a22ed02054548f0ea3535a295fd28762a0728874507c44362933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d81ff8e52886a22ed02054548f0ea3535a295fd28762a0728874507c44362933", kill_on_drop: false }`
[INFO] [stdout] d81ff8e52886a22ed02054548f0ea3535a295fd28762a0728874507c44362933