[INFO] cloning repository https://github.com/abdellatif-dev/mprs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/abdellatif-dev/mprs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabdellatif-dev%2Fmprs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabdellatif-dev%2Fmprs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6fefd1ef14c3814ee68724deca4454b6aaa15f68
[INFO] checking abdellatif-dev/mprs against try#b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4 for pr-102737
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabdellatif-dev%2Fmprs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/abdellatif-dev/mprs on toolchain b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/abdellatif-dev/mprs
[INFO] finished tweaking git repo https://github.com/abdellatif-dev/mprs
[INFO] tweaked toml for git repo https://github.com/abdellatif-dev/mprs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/abdellatif-dev/mprs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a85a9881a077526a0778e478343669e0d1b3c2edd6dcd961c29d3098c76144f8
[INFO] running `Command { std: "docker" "start" "-a" "a85a9881a077526a0778e478343669e0d1b3c2edd6dcd961c29d3098c76144f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a85a9881a077526a0778e478343669e0d1b3c2edd6dcd961c29d3098c76144f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a85a9881a077526a0778e478343669e0d1b3c2edd6dcd961c29d3098c76144f8", kill_on_drop: false }`
[INFO] [stdout] a85a9881a077526a0778e478343669e0d1b3c2edd6dcd961c29d3098c76144f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 060e11542ba9d02c9fa34241a0c923928e1d3eb329f087061c74468e84a93e26
[INFO] running `Command { std: "docker" "start" "-a" "060e11542ba9d02c9fa34241a0c923928e1d3eb329f087061c74468e84a93e26", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.139
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]     Checking encode_unicode v1.0.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr] error: failed to run custom build command for `libc v0.2.126`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/libc-d2d302c68ab6c510/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-0.2.126/build.rs:9:63
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e5ded02340 - std::backtrace_rs::backtrace::libunwind::trace::h1f8d0107ca20e2d5
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      1:     0x55e5ded02340 - std::backtrace_rs::backtrace::trace_unsynchronized::h16b61b8a4ff9bae0
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55e5ded02340 - std::sys_common::backtrace::_print_fmt::h2d4ab214d7f33688
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/sys_common/backtrace.rs:66:5
[INFO] [stderr]      3:     0x55e5ded02340 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7347f839a6cc9bcc
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/sys_common/backtrace.rs:45:22
[INFO] [stderr]      4:     0x55e5ded1f4ae - core::fmt::write::h34dbb2bf07bebeae
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/core/src/fmt/mod.rs:1209:17
[INFO] [stderr]      5:     0x55e5decff605 - std::io::Write::write_fmt::h39e3edd307407be6
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/io/mod.rs:1679:15
[INFO] [stderr]      6:     0x55e5ded039d3 - std::sys_common::backtrace::_print::h2ebb882446e23999
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/sys_common/backtrace.rs:48:5
[INFO] [stderr]      7:     0x55e5ded039d3 - std::sys_common::backtrace::print::h236a709ec9a162e3
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/sys_common/backtrace.rs:35:9
[INFO] [stderr]      8:     0x55e5ded039d3 - std::panicking::default_hook::{{closure}}::h9fe1ee152f521802
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/panicking.rs:267:22
[INFO] [stderr]      9:     0x55e5ded036aa - std::panicking::default_hook::h0ae7f9e0fc96ad3a
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/panicking.rs:286:9
[INFO] [stderr]     10:     0x55e5ded04079 - std::panicking::rust_panic_with_hook::h9571a30ec7623a79
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/panicking.rs:669:13
[INFO] [stderr]     11:     0x55e5ded03f77 - std::panicking::begin_panic_handler::{{closure}}::h11c054425482968d
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/panicking.rs:560:13
[INFO] [stderr]     12:     0x55e5ded027ec - std::sys_common::backtrace::__rust_end_short_backtrace::h60177db2ca93844a
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/sys_common/backtrace.rs:138:18
[INFO] [stderr]     13:     0x55e5ded03c92 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/panicking.rs:556:5
[INFO] [stderr]     14:     0x55e5decdbb43 - core::panicking::panic_fmt::h2c05fd63c361f657
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/core/src/panicking.rs:142:14
[INFO] [stderr]     15:     0x55e5ded1e751 - core::panicking::panic_display::hdeddae6287f58153
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/core/src/panicking.rs:72:5
[INFO] [stderr]     16:     0x55e5ded1e6fb - core::panicking::panic_str::h8817f8e9ece753ed
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/core/src/panicking.rs:56:5
[INFO] [stderr]     17:     0x55e5decdb9b6 - core::option::expect_failed::h21aa68e16ab5670c
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/core/src/option.rs:1876:5
[INFO] [stderr]     18:     0x55e5dece59f2 - core::option::Option<T>::expect::h6f300cd867e7cbba
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/core/src/option.rs:741:21
[INFO] [stderr]     19:     0x55e5dece0e34 - build_script_build::main::h3f2efc59da4b041f
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.126/build.rs:9:41
[INFO] [stderr]     20:     0x55e5dece2f7b - core::ops::function::FnOnce::call_once::h90b1fb6fc5a540b0
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/core/src/ops/function.rs:251:5
[INFO] [stderr]     21:     0x55e5dece4bde - std::sys_common::backtrace::__rust_begin_short_backtrace::h0cb07f345c0cdcf7
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/sys_common/backtrace.rs:122:18
[INFO] [stderr]     22:     0x55e5decde021 - std::rt::lang_start::{{closure}}::ha08a2b928228fc7a
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/rt.rs:166:18
[INFO] [stderr]     23:     0x55e5decfcb3f - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h18a8119824e6bc71
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/core/src/ops/function.rs:286:13
[INFO] [stderr]     24:     0x55e5decfcb3f - std::panicking::try::do_call::h414cad878667d3c7
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/panicking.rs:464:40
[INFO] [stderr]     25:     0x55e5decfcb3f - std::panicking::try::hf09c7968146f2225
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/panicking.rs:428:19
[INFO] [stderr]     26:     0x55e5decfcb3f - std::panic::catch_unwind::h39fb3a52f0382ae9
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/panic.rs:137:14
[INFO] [stderr]     27:     0x55e5decfcb3f - std::rt::lang_start_internal::{{closure}}::h41ffd09383467af1
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/rt.rs:148:48
[INFO] [stderr]     28:     0x55e5decfcb3f - std::panicking::try::do_call::h417d7cfc53347597
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/panicking.rs:464:40
[INFO] [stderr]     29:     0x55e5decfcb3f - std::panicking::try::h42cd439780197cec
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/panicking.rs:428:19
[INFO] [stderr]     30:     0x55e5decfcb3f - std::panic::catch_unwind::h4335bbcd96a45ed7
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/panic.rs:137:14
[INFO] [stderr]     31:     0x55e5decfcb3f - std::rt::lang_start_internal::h27d659fabebd6680
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/rt.rs:148:20
[INFO] [stderr]     32:     0x55e5decddffa - std::rt::lang_start::hfe3b745c3225342b
[INFO] [stderr]                                  at /rustc/b3e4dd99bf69ba41bc9bd7c11d27ddea7cb00ca4/library/std/src/rt.rs:165:17
[INFO] [stderr]     33:     0x55e5dece2591 - main
[INFO] [stderr]     34:     0x7f6c38bcd083 - __libc_start_main
[INFO] [stderr]     35:     0x55e5decdbd1e - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "060e11542ba9d02c9fa34241a0c923928e1d3eb329f087061c74468e84a93e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "060e11542ba9d02c9fa34241a0c923928e1d3eb329f087061c74468e84a93e26", kill_on_drop: false }`
[INFO] [stdout] 060e11542ba9d02c9fa34241a0c923928e1d3eb329f087061c74468e84a93e26