[INFO] crate serde_rustler 0.1.0 is already in cache
[INFO] checking serde_rustler-0.1.0 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate serde_rustler 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate serde_rustler 0.1.0 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f7bc25575ff01fcfd85e00046fad8a25b982862b41b3d97ab389b88f17c6d16
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9f7bc25575ff01fcfd85e00046fad8a25b982862b41b3d97ab389b88f17c6d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f7bc25575ff01fcfd85e00046fad8a25b982862b41b3d97ab389b88f17c6d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f7bc25575ff01fcfd85e00046fad8a25b982862b41b3d97ab389b88f17c6d16", kill_on_drop: false }`
[INFO] [stdout] 9f7bc25575ff01fcfd85e00046fad8a25b982862b41b3d97ab389b88f17c6d16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9e8fe7ba217250fe9ce9365bdfcd6446f4443b5caad4d054a5d5a6c36352087
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b9e8fe7ba217250fe9ce9365bdfcd6446f4443b5caad4d054a5d5a6c36352087", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling adler32 v1.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling object v0.20.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling rustler_sys v2.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling rustler_codegen v0.21.1
[INFO] [stderr]    Compiling backtrace v0.3.49
[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] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rustler-aee5a534f8a62b27/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'expected to find 'erl' executable: Error { inner:    0: failure::backtrace::internal::InternalBacktrace::new
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.8/src/backtrace/internal.rs:46
[INFO] [stderr]    1: failure::backtrace::Backtrace::new
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.8/src/backtrace/mod.rs:121
[INFO] [stderr]    2: failure::context::Context<D>::new
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.8/src/context.rs:84
[INFO] [stderr]    3: <which::error::Error as core::convert::From<which::error::ErrorKind>>::from
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/which-2.0.1/src/error.rs:59
[INFO] [stderr]    4: <T as core::convert::Into<U>>::into
[INFO] [stderr]              at /rustc/c8bdaa84ec1b37f18f30375e196a65b7602f3790/src/libcore/convert/mod.rs:559
[INFO] [stderr]    5: which::finder::Finder::find
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/which-2.0.1/src/finder.rs:85
[INFO] [stderr]    6: which::which_in
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/which-2.0.1/src/lib.rs:83
[INFO] [stderr]    7: which::which
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/which-2.0.1/src/lib.rs:67
[INFO] [stderr]    8: build_script_build::get_version_from_erl
[INFO] [stderr]              at build.rs:28
[INFO] [stderr]    9: build_script_build::main
[INFO] [stderr]              at build.rs:21
[INFO] [stderr]   10: std::rt::lang_start::{{closure}}
[INFO] [stderr]              at /rustc/c8bdaa84ec1b37f18f30375e196a65b7602f3790/src/libstd/rt.rs:67
[INFO] [stderr]   11: std::rt::lang_start_internal::{{closure}}
[INFO] [stderr]              at /rustc/c8bdaa84ec1b37f18f30375e196a65b7602f3790/src/libstd/rt.rs:52
[INFO] [stderr]       std::panicking::try::do_call
[INFO] [stderr]              at /rustc/c8bdaa84ec1b37f18f30375e196a65b7602f3790/src/libstd/panicking.rs:297
[INFO] [stderr]       std::panicking::try
[INFO] [stderr]              at /rustc/c8bdaa84ec1b37f18f30375e196a65b7602f3790/src/libstd/panicking.rs:274
[INFO] [stderr]       std::panic::catch_unwind
[INFO] [stderr]              at /rustc/c8bdaa84ec1b37f18f30375e196a65b7602f3790/src/libstd/panic.rs:394
[INFO] [stderr]       std::rt::lang_start_internal
[INFO] [stderr]              at /rustc/c8bdaa84ec1b37f18f30375e196a65b7602f3790/src/libstd/rt.rs:51
[INFO] [stderr]   12: std::rt::lang_start
[INFO] [stderr]              at /rustc/c8bdaa84ec1b37f18f30375e196a65b7602f3790/src/libstd/rt.rs:67
[INFO] [stderr]   13: main
[INFO] [stderr]   14: __libc_start_main
[INFO] [stderr]   15: _start
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] Cannot find binary path }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustler-0.21.1/build.rs:28:28
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5621474da8e5 - backtrace::backtrace::libunwind::trace::hc3f32ba24d88242a
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x5621474da8e5 - backtrace::backtrace::trace_unsynchronized::haad2590418eb4c26
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5621474da8e5 - std::sys_common::backtrace::_print_fmt::h4397782fec59f199
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x5621474da8e5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h39652f0242246c81
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x5621474fd78c - core::fmt::write::h540ac4a6a1232abc
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]    5:     0x5621474d7dd3 - std::io::Write::write_fmt::haa03b5883ee9e297
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x5621474dce40 - std::sys_common::backtrace::_print::ha6d9bdf9f438acec
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x5621474dce40 - std::sys_common::backtrace::print::ha1fba17a8e5f6bc7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x5621474dce40 - std::panicking::default_hook::{{closure}}::ha3c41e6964bb5c0e
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x5621474dcb8c - std::panicking::default_hook::h39b8550780094336
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x5621474dd477 - std::panicking::rust_panic_with_hook::hc8b48ce48004c103
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]   11:     0x5621474dd07b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:385
[INFO] [stderr]   12:     0x5621474fcb91 - core::panicking::panic_fmt::h78830ea6a34e7206
[INFO] [stderr]                                at src/libcore/panicking.rs:86
[INFO] [stderr]   13:     0x5621474fc9b3 - core::option::expect_none_failed::hf79bbb5ca7e09e08
[INFO] [stderr]                                at src/libcore/option.rs:1272
[INFO] [stderr]   14:     0x562147400058 - core::result::Result<T,E>::expect::ha17415d6b259dcfc
[INFO] [stderr]                                at /rustc/c8bdaa84ec1b37f18f30375e196a65b7602f3790/src/libcore/result.rs:963
[INFO] [stderr]   15:     0x56214740b453 - build_script_build::get_version_from_erl::h8105956eb1eae438
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustler-0.21.1/build.rs:28
[INFO] [stderr]   16:     0x56214740b2e4 - build_script_build::main::h59f316413e46ddd1
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustler-0.21.1/build.rs:21
[INFO] [stderr]   17:     0x562147408a1b - std::rt::lang_start::{{closure}}::hfef22da9f1adc123
[INFO] [stderr]                                at /rustc/c8bdaa84ec1b37f18f30375e196a65b7602f3790/src/libstd/rt.rs:67
[INFO] [stderr]   18:     0x5621474dd848 - std::rt::lang_start_internal::{{closure}}::h980666b660b57c6b
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   19:     0x5621474dd848 - std::panicking::try::do_call::h350bf2b82f81cf24
[INFO] [stderr]                                at src/libstd/panicking.rs:297
[INFO] [stderr]   20:     0x5621474dd848 - std::panicking::try::hcafd728f614c0cb2
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   21:     0x5621474dd848 - std::panic::catch_unwind::h301dc6a83a38a171
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x5621474dd848 - std::rt::lang_start_internal::hf4abd869024c3270
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x5621474089f7 - std::rt::lang_start::hf83b4386b72af85b
[INFO] [stderr]                                at /rustc/c8bdaa84ec1b37f18f30375e196a65b7602f3790/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x56214740bcea - main
[INFO] [stderr]   25:     0x7fc59295a0b3 - __libc_start_main
[INFO] [stderr]   26:     0x5621473fc18e - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "b9e8fe7ba217250fe9ce9365bdfcd6446f4443b5caad4d054a5d5a6c36352087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9e8fe7ba217250fe9ce9365bdfcd6446f4443b5caad4d054a5d5a6c36352087", kill_on_drop: false }`
[INFO] [stdout] b9e8fe7ba217250fe9ce9365bdfcd6446f4443b5caad4d054a5d5a6c36352087