[INFO] fetching crate iptables_exporter 0.1.0...
[INFO] testing iptables_exporter-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate iptables_exporter 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate iptables_exporter 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-13/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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded http-body v0.4.1
[INFO] [stderr]   Downloaded tracing-attributes v0.1.15
[INFO] [stderr]   Downloaded sharded-slab v0.1.1
[INFO] [stderr]   Downloaded lock_api v0.4.3
[INFO] [stderr]   Downloaded redox_syscall v0.2.6
[INFO] [stderr]   Downloaded tracing v0.1.25
[INFO] [stderr]   Downloaded anyhow v1.0.40
[INFO] [stderr]   Downloaded protobuf v2.23.0
[INFO] [stderr]   Downloaded prometheus v0.12.0
[INFO] [stderr]   Downloaded tracing-serde v0.1.2
[INFO] [stderr]   Downloaded prometheus-hyper v0.1.2
[INFO] [stderr]   Downloaded syn v1.0.70
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 771e4e2871c2e93303f76bc7b1a002dfb70de59bbf81f9684802d441e6e6c338
[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" "771e4e2871c2e93303f76bc7b1a002dfb70de59bbf81f9684802d441e6e6c338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "771e4e2871c2e93303f76bc7b1a002dfb70de59bbf81f9684802d441e6e6c338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "771e4e2871c2e93303f76bc7b1a002dfb70de59bbf81f9684802d441e6e6c338", kill_on_drop: false }`
[INFO] [stdout] 771e4e2871c2e93303f76bc7b1a002dfb70de59bbf81f9684802d441e6e6c338
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fc4813480fe8889732d593d206f2f3106bc1b7828872806e603e0ad0c65f9446
[INFO] running `Command { std: "docker" "start" "-a" "fc4813480fe8889732d593d206f2f3106bc1b7828872806e603e0ad0c65f9446", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling protobuf v2.23.0
[INFO] [stderr]    Compiling prometheus v0.12.0
[INFO] [stderr]    Compiling futures-task v0.3.14
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling lock_api v0.4.3
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling sharded-slab v0.1.1
[INFO] [stderr]    Compiling futures-channel v0.3.14
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling futures-util v0.3.14
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling thiserror v1.0.24
[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 clap v3.0.0-beta.2
[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-bdbf128a4614ca42/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:     0x55bfcf1affed - std::backtrace_rs::backtrace::libunwind::trace::hee598835bc88d35b
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x55bfcf1affed - std::backtrace_rs::backtrace::trace_unsynchronized::h9cdc730ba5cf5d72
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55bfcf1affed - std::sys_common::backtrace::_print_fmt::h75aeaf7ed30e43fa
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:66:5
[INFO] [stderr]      3:     0x55bfcf1affed - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h606862f787600875
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:45:22
[INFO] [stderr]      4:     0x55bfcf1d029c - core::fmt::write::he803f0f418caf762
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/fmt/mod.rs:1190:17
[INFO] [stderr]      5:     0x55bfcf1ac3c8 - std::io::Write::write_fmt::h70bc45872f37e7bb
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/io/mod.rs:1657:15
[INFO] [stderr]      6:     0x55bfcf1b1c87 - std::sys_common::backtrace::_print::h64d038cf8ac3e13e
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:48:5
[INFO] [stderr]      7:     0x55bfcf1b1c87 - std::sys_common::backtrace::print::h359300b4a7fccf65
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:35:9
[INFO] [stderr]      8:     0x55bfcf1b1c87 - std::panicking::default_hook::{{closure}}::hf51be35e2f510149
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:295:22
[INFO] [stderr]      9:     0x55bfcf1b1950 - std::panicking::default_hook::h03ca0f22e1d2d25e
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:314:9
[INFO] [stderr]     10:     0x55bfcf1b23d9 - std::panicking::rust_panic_with_hook::h3b7380e99b825b63
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:698:17
[INFO] [stderr]     11:     0x55bfcf1b20c7 - std::panicking::begin_panic_handler::{{closure}}::h8e849d0710154ce0
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:588:13
[INFO] [stderr]     12:     0x55bfcf1b04b4 - std::sys_common::backtrace::__rust_end_short_backtrace::hedcdaddbd4c46cc5
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:138:18
[INFO] [stderr]     13:     0x55bfcf1b1dd9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:584:5
[INFO] [stderr]     14:     0x55bfcf190413 - core::panicking::panic_fmt::he1bbc7336d49a357
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/panicking.rs:143:14
[INFO] [stderr]     15:     0x55bfcf1908f3 - core::str::slice_error_fail::h37e893d2045b720c
[INFO] [stderr]     16:     0x55bfcf196510 - core::str::traits::<impl core::slice::index::SliceIndex<str> for core::ops::range::RangeTo<usize>>::index::hb47c0014dec828ea
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/str/traits.rs:289:21
[INFO] [stderr]     17:     0x55bfcf196358 - core::str::traits::<impl core::ops::index::Index<I> for str>::index::h8698d1a4cebf6973
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/str/traits.rs:64:9
[INFO] [stderr]     18:     0x55bfcf1955fe - <alloc::string::String as core::ops::index::Index<core::ops::range::RangeTo<usize>>>::index::h0fa5d79ba7cfb664
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/alloc/src/string.rs:2240:10
[INFO] [stderr]     19:     0x55bfcf192339 - build_script_build::main::ha83e33663303b1fc
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:13:48
[INFO] [stderr]     20:     0x55bfcf194bab - core::ops::function::FnOnce::call_once::h93063ef118483a8f
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     21:     0x55bfcf19370e - std::sys_common::backtrace::__rust_begin_short_backtrace::hf95d0319643c12d9
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:122:18
[INFO] [stderr]     22:     0x55bfcf192641 - std::rt::lang_start::{{closure}}::h1890a10dd387bbe6
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:145:18
[INFO] [stderr]     23:     0x55bfcf1af6d1 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hb7014f43484a8b4e
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     24:     0x55bfcf1af6d1 - std::panicking::try::do_call::h7bc9dc436daeb8c7
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:492:40
[INFO] [stderr]     25:     0x55bfcf1af6d1 - std::panicking::try::h653d68a27ff5f175
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:456:19
[INFO] [stderr]     26:     0x55bfcf1af6d1 - std::panic::catch_unwind::h9d739f9f59895e68
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panic.rs:137:14
[INFO] [stderr]     27:     0x55bfcf1af6d1 - std::rt::lang_start_internal::{{closure}}::hf006f2bc7ce22bbe
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:128:48
[INFO] [stderr]     28:     0x55bfcf1af6d1 - std::panicking::try::do_call::hfb39d6df61a2e69f
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:492:40
[INFO] [stderr]     29:     0x55bfcf1af6d1 - std::panicking::try::h13e2d225134958ac
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:456:19
[INFO] [stderr]     30:     0x55bfcf1af6d1 - std::panic::catch_unwind::h3bd49b5a5dfb1a50
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panic.rs:137:14
[INFO] [stderr]     31:     0x55bfcf1af6d1 - std::rt::lang_start_internal::h2ba92edce36c035e
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:128:20
[INFO] [stderr]     32:     0x55bfcf192610 - std::rt::lang_start::hf03a3deed3ac4e38
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:144:17
[INFO] [stderr]     33:     0x55bfcf19268c - main
[INFO] [stderr]     34:     0x7fbbbce520b3 - __libc_start_main
[INFO] [stderr]     35:     0x55bfcf190b9e - _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" "fc4813480fe8889732d593d206f2f3106bc1b7828872806e603e0ad0c65f9446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc4813480fe8889732d593d206f2f3106bc1b7828872806e603e0ad0c65f9446", kill_on_drop: false }`
[INFO] [stdout] fc4813480fe8889732d593d206f2f3106bc1b7828872806e603e0ad0c65f9446