[INFO] cloning repository https://github.com/aaneto/json-array-compare
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aaneto/json-array-compare" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaneto%2Fjson-array-compare", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaneto%2Fjson-array-compare'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 928ee7c2ce9cc50733cb5ce6b8ccb778403ce0bf
[INFO] checking aaneto/json-array-compare against try#742889a08e10036dc30b8a7308f2a2a15b706883 for pr-103450-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaneto%2Fjson-array-compare" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aaneto/json-array-compare on toolchain 742889a08e10036dc30b8a7308f2a2a15b706883
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aaneto/json-array-compare
[INFO] finished tweaking git repo https://github.com/aaneto/json-array-compare
[INFO] tweaked toml for git repo https://github.com/aaneto/json-array-compare written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/aaneto/json-array-compare already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 235be88bdf1b13eb9f1524ca53eb7badbb5ea8de78d77dcd042442230cb7da87
[INFO] running `Command { std: "docker" "start" "-a" "235be88bdf1b13eb9f1524ca53eb7badbb5ea8de78d77dcd042442230cb7da87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "235be88bdf1b13eb9f1524ca53eb7badbb5ea8de78d77dcd042442230cb7da87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "235be88bdf1b13eb9f1524ca53eb7badbb5ea8de78d77dcd042442230cb7da87", kill_on_drop: false }`
[INFO] [stdout] 235be88bdf1b13eb9f1524ca53eb7badbb5ea8de78d77dcd042442230cb7da87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb06f6937d3af1c944fecf067837f406b95771ac3076b2e28d82f3809bd1a52f
[INFO] running `Command { std: "docker" "start" "-a" "cb06f6937d3af1c944fecf067837f406b95771ac3076b2e28d82f3809bd1a52f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr] error: failed to run custom build command for `libc v0.2.118`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/libc-e3c63f05001eda79/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=build.rs
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Failed to get rustc version', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.118/build.rs:9:63
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5607c422c5d0 - std::backtrace_rs::backtrace::libunwind::trace::h0cfde6bcd0e9218b
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      1:     0x5607c422c5d0 - std::backtrace_rs::backtrace::trace_unsynchronized::h73414317b67b9258
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5607c422c5d0 - std::sys_common::backtrace::_print_fmt::hc72856056229ba99
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stderr]      3:     0x5607c422c5d0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h9bcc505be023bcd9
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x5607c42495be - core::fmt::write::hbbd758e71b4c78c5
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/core/src/fmt/mod.rs:1209:17
[INFO] [stderr]      5:     0x5607c4229c85 - std::io::Write::write_fmt::hb0acfa68241718b6
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/io/mod.rs:1682:15
[INFO] [stderr]      6:     0x5607c422c395 - std::sys_common::backtrace::_print::h62204460ef6db810
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      7:     0x5607c422c395 - std::sys_common::backtrace::print::h23fdf6726ef1c6e2
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      8:     0x5607c422da9f - std::panicking::default_hook::{{closure}}::h7043b9f3773e01d7
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/panicking.rs:267:22
[INFO] [stderr]      9:     0x5607c422d7da - std::panicking::default_hook::hb0018265d6ff17ae
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/panicking.rs:286:9
[INFO] [stderr]     10:     0x5607c422e198 - std::panicking::rust_panic_with_hook::h96053eff6f8faa55
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/panicking.rs:688:13
[INFO] [stderr]     11:     0x5607c422df37 - std::panicking::begin_panic_handler::{{closure}}::hce407c1c2ff6f91f
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/panicking.rs:579:13
[INFO] [stderr]     12:     0x5607c422ca7c - std::sys_common::backtrace::__rust_end_short_backtrace::h02aa76146c054f19
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/sys_common/backtrace.rs:137:18
[INFO] [stderr]     13:     0x5607c422dc52 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/panicking.rs:575:5
[INFO] [stderr]     14:     0x5607c4206083 - core::panicking::panic_fmt::h2ab19d77581e7904
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/core/src/panicking.rs:65:14
[INFO] [stderr]     15:     0x5607c4248861 - core::panicking::panic_display::h94f12c889dad2e7f
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/core/src/panicking.rs:139:5
[INFO] [stderr]     16:     0x5607c424880b - core::panicking::panic_str::h73803a165ff54ccb
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/core/src/panicking.rs:123:5
[INFO] [stderr]     17:     0x5607c4206046 - core::option::expect_failed::h8daa48383042e80a
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/core/src/option.rs:1879:5
[INFO] [stderr]     18:     0x5607c4210002 - core::option::Option<T>::expect::h982574e29c0acc9b
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/core/src/option.rs:741:21
[INFO] [stderr]     19:     0x5607c420b3c4 - build_script_build::main::ha2e095cbf77628c5
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.118/build.rs:9:41
[INFO] [stderr]     20:     0x5607c420eccb - core::ops::function::FnOnce::call_once::hf0ff19441be43a4a
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/core/src/ops/function.rs:251:5
[INFO] [stderr]     21:     0x5607c420f9de - std::sys_common::backtrace::__rust_begin_short_backtrace::h63e55e109006f9e7
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/sys_common/backtrace.rs:121:18
[INFO] [stderr]     22:     0x5607c42086c1 - std::rt::lang_start::{{closure}}::haba17a45a6303f80
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/rt.rs:166:18
[INFO] [stderr]     23:     0x5607c4226feb - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h5d47dd4b19bce991
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/core/src/ops/function.rs:286:13
[INFO] [stderr]     24:     0x5607c4226feb - std::panicking::try::do_call::h12db108a75bff364
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/panicking.rs:483:40
[INFO] [stderr]     25:     0x5607c4226feb - std::panicking::try::hb313b71e6243e635
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/panicking.rs:447:19
[INFO] [stderr]     26:     0x5607c4226feb - std::panic::catch_unwind::hc8863488ba4869e0
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/panic.rs:137:14
[INFO] [stderr]     27:     0x5607c4226feb - std::rt::lang_start_internal::{{closure}}::h985017cd696ff8af
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/rt.rs:148:48
[INFO] [stderr]     28:     0x5607c4226feb - std::panicking::try::do_call::h0f7ad2cd832b0126
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/panicking.rs:483:40
[INFO] [stderr]     29:     0x5607c4226feb - std::panicking::try::h68f249420edfb7ca
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/panicking.rs:447:19
[INFO] [stderr]     30:     0x5607c4226feb - std::panic::catch_unwind::h7f32ea3d29c91351
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/panic.rs:137:14
[INFO] [stderr]     31:     0x5607c4226feb - std::rt::lang_start_internal::hcf55cd02fe214e16
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/rt.rs:148:20
[INFO] [stderr]     32:     0x5607c420869a - std::rt::lang_start::hc137ccb8d9d0acbf
[INFO] [stderr]                                  at /rustc/742889a08e10036dc30b8a7308f2a2a15b706883/library/std/src/rt.rs:165:17
[INFO] [stderr]     33:     0x5607c420ca5e - main
[INFO] [stderr]     34:     0x7f04f75c1083 - __libc_start_main
[INFO] [stderr]     35:     0x5607c42063ce - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "cb06f6937d3af1c944fecf067837f406b95771ac3076b2e28d82f3809bd1a52f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb06f6937d3af1c944fecf067837f406b95771ac3076b2e28d82f3809bd1a52f", kill_on_drop: false }`
[INFO] [stdout] cb06f6937d3af1c944fecf067837f406b95771ac3076b2e28d82f3809bd1a52f