[INFO] fetching crate iptables_exporter 0.1.0...
[INFO] testing iptables_exporter-0.1.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate iptables_exporter 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate iptables_exporter 0.1.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iptables_exporter 0.1.0
[INFO] finished tweaking crates.io crate iptables_exporter 0.1.0
[INFO] tweaked toml for crates.io crate iptables_exporter 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate iptables_exporter 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-serde v0.1.2
[INFO] [stderr]   Downloaded signal-hook-registry v1.3.0
[INFO] [stderr]   Downloaded textwrap v0.12.1
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[INFO] [stderr]   Downloaded tracing-subscriber v0.2.17
[INFO] [stderr]   Downloaded unicode-segmentation v1.7.1
[INFO] [stderr]   Downloaded ansi_term v0.12.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.23
[INFO] [stderr]   Downloaded regex v1.4.6
[INFO] [stderr]   Downloaded lock_api v0.4.3
[INFO] [stderr]   Downloaded syn v1.0.70
[INFO] [stderr]   Downloaded tracing v0.1.25
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.4
[INFO] [stderr]   Downloaded matchers v0.0.1
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[INFO] [stderr]   Downloaded clap v3.0.0-beta.2
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[INFO] [stderr]   Downloaded prometheus v0.12.0
[INFO] [stderr]   Downloaded prometheus-hyper v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10b7d157fd5aaa5e8f717436c90a7dcb02e78b8ae74903579eabac6e08762876
[INFO] running `Command { std: "docker" "start" "-a" "10b7d157fd5aaa5e8f717436c90a7dcb02e78b8ae74903579eabac6e08762876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10b7d157fd5aaa5e8f717436c90a7dcb02e78b8ae74903579eabac6e08762876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10b7d157fd5aaa5e8f717436c90a7dcb02e78b8ae74903579eabac6e08762876", kill_on_drop: false }`
[INFO] [stdout] 10b7d157fd5aaa5e8f717436c90a7dcb02e78b8ae74903579eabac6e08762876
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7af55eb34ce06dfce1c9c8811b3f2691fb5d019ad2230238f5809bb4a281267a
[INFO] running `Command { std: "docker" "start" "-a" "7af55eb34ce06dfce1c9c8811b3f2691fb5d019ad2230238f5809bb4a281267a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling futures-core v0.3.14
[INFO] [stderr]    Compiling protobuf v2.23.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-task v0.3.14
[INFO] [stderr]    Compiling prometheus v0.12.0
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling httpdate v1.0.0
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling sharded-slab v0.1.1
[INFO] [stderr]    Compiling futures-channel v0.3.14
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling lock_api v0.4.3
[INFO] [stderr]    Compiling futures-util v0.3.14
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling http-body v0.4.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling clap v3.0.0-beta.2
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling tracing v0.1.25
[INFO] [stderr]    Compiling tracing-subscriber v0.2.17
[INFO] [stderr]    Compiling iptables_exporter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `iptables_exporter v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/iptables_exporter-e85a999b139d6d90/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'byte index 10 is out of bounds of ``', build.rs:13:48
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x557622bc9da0 - std::backtrace_rs::backtrace::libunwind::trace::h706b838f5bbd876b
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x557622bc9da0 - std::backtrace_rs::backtrace::trace_unsynchronized::hc15f29ae7822b7b8
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x557622bc9da0 - std::sys_common::backtrace::_print_fmt::h7c580c971f91926c
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x557622bc9da0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2a772198c4032452
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x557622be6f0c - core::fmt::write::h9a6d9c74526a6c1b
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]      5:     0x557622bc7c15 - std::io::Write::write_fmt::h00f38d9eb2c32e02
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/io/mod.rs:1663:15
[INFO] [stderr]      6:     0x557622bcb9cb - std::sys_common::backtrace::_print::h5b3c171e6f864ae4
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x557622bcb9cb - std::sys_common::backtrace::print::h93b9e9ed2a98e611
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x557622bcb9cb - std::panicking::default_hook::{{closure}}::hd8da92bb68d520c5
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x557622bcb4a1 - std::panicking::default_hook::hdbc8b2951c5afbab
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x557622bcc094 - std::panicking::rust_panic_with_hook::h8a4c841655926f4e
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x557622bcbb77 - std::panicking::begin_panic_handler::{{closure}}::h471b6bc74904b7b0
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x557622bca29c - std::sys_common::backtrace::__rust_end_short_backtrace::h309f5c707f29932f
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x557622bcbad9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x557622bb01f1 - core::panicking::panic_fmt::hcf5f6d96e1dd7099
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x557622bb06e3 - core::str::slice_error_fail::he0adaf23c18f67f8
[INFO] [stderr]     16:     0x557622bb61c0 - core::str::traits::<impl core::slice::index::SliceIndex<str> for core::ops::range::RangeTo<usize>>::index::h2f683f8ee6b9a933
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/core/src/str/traits.rs:289:21
[INFO] [stderr]     17:     0x557622bb5ed8 - core::str::traits::<impl core::ops::index::Index<I> for str>::index::hbe3a0a455cbabd27
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/core/src/str/traits.rs:64:9
[INFO] [stderr]     18:     0x557622bb254e - <alloc::string::String as core::ops::index::Index<core::ops::range::RangeTo<usize>>>::index::h76716828f6fe77b6
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/alloc/src/string.rs:2214:10
[INFO] [stderr]     19:     0x557622bb404c - build_script_build::main::h54e8812122f7bf9e
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:13:48
[INFO] [stderr]     20:     0x557622bb341b - core::ops::function::FnOnce::call_once::ha05b14ef8ef6749d
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     21:     0x557622bb1f2e - std::sys_common::backtrace::__rust_begin_short_backtrace::hddbe944241b70160
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     22:     0x557622bb1fc1 - std::rt::lang_start::{{closure}}::h473d08cb49da6820
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/rt.rs:63:18
[INFO] [stderr]     23:     0x557622bcc59a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hcbe5785d54a49ce2
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     24:     0x557622bcc59a - std::panicking::try::do_call::h1c15e7ee8563c29d
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:401:40
[INFO] [stderr]     25:     0x557622bcc59a - std::panicking::try::hb8b07cef009cb4fc
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:365:19
[INFO] [stderr]     26:     0x557622bcc59a - std::panic::catch_unwind::h65a8efbe596bcbb1
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panic.rs:434:14
[INFO] [stderr]     27:     0x557622bcc59a - std::rt::lang_start_internal::{{closure}}::h66ded7ab0f18e9fb
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/rt.rs:45:48
[INFO] [stderr]     28:     0x557622bcc59a - std::panicking::try::do_call::h29cafa65efb3f3f3
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:401:40
[INFO] [stderr]     29:     0x557622bcc59a - std::panicking::try::h412fc5378b4dbfc4
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panicking.rs:365:19
[INFO] [stderr]     30:     0x557622bcc59a - std::panic::catch_unwind::h555def6aac5bf192
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/panic.rs:434:14
[INFO] [stderr]     31:     0x557622bcc59a - std::rt::lang_start_internal::hfff48202d7fee6e3
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/rt.rs:45:20
[INFO] [stderr]     32:     0x557622bb1f90 - std::rt::lang_start::h650991e5a415a57d
[INFO] [stderr]                                  at /rustc/ecabaf78506b7a4668d42dc20268c086b93f0fad/library/std/src/rt.rs:62:5
[INFO] [stderr]     33:     0x557622bb432c - main
[INFO] [stderr]     34:     0x7f7668b870b3 - __libc_start_main
[INFO] [stderr]     35:     0x557622bb094e - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7af55eb34ce06dfce1c9c8811b3f2691fb5d019ad2230238f5809bb4a281267a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7af55eb34ce06dfce1c9c8811b3f2691fb5d019ad2230238f5809bb4a281267a", kill_on_drop: false }`
[INFO] [stdout] 7af55eb34ce06dfce1c9c8811b3f2691fb5d019ad2230238f5809bb4a281267a