[INFO] fetching crate serde_rustler 0.1.0...
[INFO] checking serde_rustler-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate serde_rustler 0.1.0 into /workspace/builds/worker-1-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-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_rustler 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 40 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: v0.36.2)
[INFO] [stderr]       Adding rustler_codegen v0.21.1 (available: v0.36.2)
[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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 05fabe1ac80382c5dabb5c0baee32d97c4b9db0c959d473d00287d64f4df288e
[INFO] running `Command { std: "docker" "start" "-a" "05fabe1ac80382c5dabb5c0baee32d97c4b9db0c959d473d00287d64f4df288e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05fabe1ac80382c5dabb5c0baee32d97c4b9db0c959d473d00287d64f4df288e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05fabe1ac80382c5dabb5c0baee32d97c4b9db0c959d473d00287d64f4df288e", kill_on_drop: false }`
[INFO] [stdout] 05fabe1ac80382c5dabb5c0baee32d97c4b9db0c959d473d00287d64f4df288e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 21338fa439245ad3e3c24aaf1df42e4290511b4fd1942cbe0fa744918a3130d8
[INFO] running `Command { std: "docker" "start" "-a" "21338fa439245ad3e3c24aaf1df42e4290511b4fd1942cbe0fa744918a3130d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.25
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling rustler_sys v2.1.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling rustler_codegen v0.21.1
[INFO] [stderr]    Compiling addr2line v0.24.2
[INFO] [stderr]    Compiling backtrace v0.3.75
[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-cd1a142a69c418ca/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' 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/998b6603a58e47f42ccce7a67943234e96b6839e/library/core/src/ops/function.rs:284:21
[INFO] [stderr]         std::panicking::catch_unwind::do_call
[INFO] [stderr]                at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:589:40
[INFO] [stderr]         std::panicking::catch_unwind
[INFO] [stderr]                at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:552:19
[INFO] [stderr]         std::panic::catch_unwind
[INFO] [stderr]                at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panic.rs:359:14
[INFO] [stderr]         std::rt::lang_start_internal::{{closure}}
[INFO] [stderr]                at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/rt.rs:175:24
[INFO] [stderr]         std::panicking::catch_unwind::do_call
[INFO] [stderr]                at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:589:40
[INFO] [stderr]         std::panicking::catch_unwind
[INFO] [stderr]                at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:552:19
[INFO] [stderr]         std::panic::catch_unwind
[INFO] [stderr]                at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panic.rs:359:14
[INFO] [stderr]         std::rt::lang_start_internal
[INFO] [stderr]                at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/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:     0x5eb9ef473e52 - std::backtrace_rs::backtrace::libunwind::trace::h360bb75e22de2778
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5eb9ef473e52 - std::backtrace_rs::backtrace::trace_unsynchronized::hfdde2f704faeffd5
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5eb9ef473e52 - std::sys::backtrace::_print_fmt::h417d2e15f697175b
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5eb9ef473e52 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h6da87f843d594e5f
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5eb9ef493aa3 - core::fmt::rt::Argument::fmt::h93dad83eea6b1735
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5eb9ef493aa3 - core::fmt::write::hfc80a741b320fdf6
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/core/src/fmt/mod.rs:1465:25
[INFO] [stderr]      6:     0x5eb9ef471213 - std::io::default_write_fmt::h4f50706d79e0ad9c
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5eb9ef471213 - std::io::Write::write_fmt::h4ea6a86049496d1c
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5eb9ef473ca2 - std::sys::backtrace::BacktraceLock::print::h1cbd12f8d7a3dd2a
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5eb9ef474db6 - std::panicking::default_hook::{{closure}}::h05e45c6f75ebd415
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:300:27
[INFO] [stderr]     10:     0x5eb9ef474bb9 - std::panicking::default_hook::h282f20b2a278c2b0
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:327:9
[INFO] [stderr]     11:     0x5eb9ef475682 - std::panicking::rust_panic_with_hook::h36eb92d284238d72
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:833:13
[INFO] [stderr]     12:     0x5eb9ef47551a - std::panicking::begin_panic_handler::{{closure}}::h880cd2442ca41755
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:706:13
[INFO] [stderr]     13:     0x5eb9ef474349 - std::sys::backtrace::__rust_end_short_backtrace::hea32aba5814406f8
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     14:     0x5eb9ef4751ad - __rustc[e8bfc998c4eccd70]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:697:5
[INFO] [stderr]     15:     0x5eb9ef492b90 - core::panicking::panic_fmt::h507f02bb0d23e89f
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x5eb9ef493026 - core::result::unwrap_failed::h6b26e9363750e436
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/core/src/result.rs:1761:5
[INFO] [stderr]     17:     0x5eb9ef38e69a - core::result::Result<T,E>::expect::h2249a570a44b1222
[INFO] [stderr]     18:     0x5eb9ef38b4ee - build_script_build::get_version_from_erl::h3a0c2fb39f16e647
[INFO] [stderr]     19:     0x5eb9ef38b39f - build_script_build::main::h59a9d3ef820b149b
[INFO] [stderr]     20:     0x5eb9ef38cb23 - core::ops::function::FnOnce::call_once::h568a8e09decfd028
[INFO] [stderr]     21:     0x5eb9ef3882b6 - std::sys::backtrace::__rust_begin_short_backtrace::h0fe8461dba00e09e
[INFO] [stderr]     22:     0x5eb9ef38c3b9 - std::rt::lang_start::{{closure}}::heb8bad9e62a12595
[INFO] [stderr]     23:     0x5eb9ef46dc10 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h6a0310293008eb2d
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/core/src/ops/function.rs:284:21
[INFO] [stderr]     24:     0x5eb9ef46dc10 - std::panicking::catch_unwind::do_call::h296e94a1c4e3d78c
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:589:40
[INFO] [stderr]     25:     0x5eb9ef46dc10 - std::panicking::catch_unwind::hcc60b8b41a431974
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:552:19
[INFO] [stderr]     26:     0x5eb9ef46dc10 - std::panic::catch_unwind::hfde220fef6750e01
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x5eb9ef46dc10 - std::rt::lang_start_internal::{{closure}}::h8a2acae78735c9ef
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x5eb9ef46dc10 - std::panicking::catch_unwind::do_call::hd03928f4e997613a
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:589:40
[INFO] [stderr]     29:     0x5eb9ef46dc10 - std::panicking::catch_unwind::hf7cbafaef6e89ea3
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panicking.rs:552:19
[INFO] [stderr]     30:     0x5eb9ef46dc10 - std::panic::catch_unwind::hf1ae9b7d8b7c2036
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x5eb9ef46dc10 - std::rt::lang_start_internal::h1c97a48421de4504
[INFO] [stderr]                                  at /rustc/998b6603a58e47f42ccce7a67943234e96b6839e/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x5eb9ef38c3a1 - std::rt::lang_start::h334c7a65c436a2cf
[INFO] [stderr]     33:     0x5eb9ef38bcd5 - main
[INFO] [stderr]     34:     0x7733155f71ca - <unknown>
[INFO] [stderr]     35:     0x7733155f728b - __libc_start_main
[INFO] [stderr]     36:     0x5eb9ef387985 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "21338fa439245ad3e3c24aaf1df42e4290511b4fd1942cbe0fa744918a3130d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21338fa439245ad3e3c24aaf1df42e4290511b4fd1942cbe0fa744918a3130d8", kill_on_drop: false }`
[INFO] [stdout] 21338fa439245ad3e3c24aaf1df42e4290511b4fd1942cbe0fa744918a3130d8