[INFO] fetching crate libsel4-sys 0.5.2...
[INFO] checking libsel4-sys-0.5.2 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate libsel4-sys 0.5.2 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate libsel4-sys 0.5.2 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-30/source/rust-toolchain
[INFO] started tweaking crates.io crate libsel4-sys 0.5.2
[INFO] finished tweaking crates.io crate libsel4-sys 0.5.2
[INFO] tweaked toml for crates.io crate libsel4-sys 0.5.2 written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rlibc v1.0.0
[INFO] [stderr]   Downloaded multimap v0.4.0
[INFO] [stderr]   Downloaded clang-sys v0.22.0
[INFO] [stderr]   Downloaded bindgen v0.35.0
[INFO] [stderr]   Downloaded fel4-config v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d627ce0a0ba3bdd3cfaf0dff5d4c99ebf51e19456045bc49e2e5c8f89616ad8
[INFO] running `Command { std: "docker" "start" "-a" "4d627ce0a0ba3bdd3cfaf0dff5d4c99ebf51e19456045bc49e2e5c8f89616ad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d627ce0a0ba3bdd3cfaf0dff5d4c99ebf51e19456045bc49e2e5c8f89616ad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d627ce0a0ba3bdd3cfaf0dff5d4c99ebf51e19456045bc49e2e5c8f89616ad8", kill_on_drop: false }`
[INFO] [stdout] 4d627ce0a0ba3bdd3cfaf0dff5d4c99ebf51e19456045bc49e2e5c8f89616ad8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aeff841d0f2a201e665b33052d393987fd6c4efe48b47c1c486b3d55328ad569
[INFO] running `Command { std: "docker" "start" "-a" "aeff841d0f2a201e665b33052d393987fd6c4efe48b47c1c486b3d55328ad569", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling bindgen v0.35.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking rlibc v1.0.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling clang-sys v0.22.0
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling cexpr v0.2.3
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling fel4-config v0.3.2
[INFO] [stderr]    Compiling libsel4-sys v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `libsel4-sys v0.5.2 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/libsel4-sys-b16bd49dc52fd7b6/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'libsel4-sys build.rs had trouble figuring out where to pull fel4 config from. Required environment variable FEL4_MANIFEST_PATH was absent', build.rs:30:19
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55d6ef432c20 - std::backtrace_rs::backtrace::libunwind::trace::h0197874f43e7190f
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55d6ef432c20 - std::backtrace_rs::backtrace::trace_unsynchronized::hfdfd566bbbda6f2d
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55d6ef432c20 - std::sys_common::backtrace::_print_fmt::hb3b4707c15b032a1
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55d6ef432c20 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::had1dceac8b072f88
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55d6ef4591cc - core::fmt::write::h9a6d9c74526a6c1b
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/core/src/fmt/mod.rs:1117:17
[INFO] [stderr]      5:     0x55d6ef42f505 - std::io::Write::write_fmt::h05c3bb2bc83b8ed0
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/io/mod.rs:1667:15
[INFO] [stderr]      6:     0x55d6ef434d5b - std::sys_common::backtrace::_print::h10f0826b2a586b58
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55d6ef434d5b - std::sys_common::backtrace::print::h0d4242fbd1ac3eb6
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55d6ef434d5b - std::panicking::default_hook::{{closure}}::h275ead39fe8b8e2a
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:210:50
[INFO] [stderr]      9:     0x55d6ef4348d0 - std::panicking::default_hook::h5505d4d90f5984d9
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:227:9
[INFO] [stderr]     10:     0x55d6ef435424 - std::panicking::rust_panic_with_hook::h2f8980d1d9fd4ca0
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:624:17
[INFO] [stderr]     11:     0x55d6ef434f00 - std::panicking::begin_panic_handler::{{closure}}::hd87853ef7e40ae97
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:521:13
[INFO] [stderr]     12:     0x55d6ef433124 - std::sys_common::backtrace::__rust_end_short_backtrace::hcab167aa940694a2
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55d6ef434e69 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:517:5
[INFO] [stderr]     14:     0x55d6eef1dc0b - std::panicking::begin_panic_fmt::hb22a56f1d7ee4f34
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:460:5
[INFO] [stderr]     15:     0x55d6eef1f415 - build_script_build::main::h21b120b49bc989f8
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:30:19
[INFO] [stderr]     16:     0x55d6eef2a29b - core::ops::function::FnOnce::call_once::ha33ec84c9ae2389d
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     17:     0x55d6eef2916e - std::sys_common::backtrace::__rust_begin_short_backtrace::h143a0df407c8dc44
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     18:     0x55d6eef25961 - std::rt::lang_start::{{closure}}::hcbd856a024b7ab45
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/rt.rs:63:18
[INFO] [stderr]     19:     0x55d6ef43592a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h5e3bbb97afe2bb03
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     20:     0x55d6ef43592a - std::panicking::try::do_call::h48c2d717cec4bdcb
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:403:40
[INFO] [stderr]     21:     0x55d6ef43592a - std::panicking::try::h2a49bc215893bc14
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:367:19
[INFO] [stderr]     22:     0x55d6ef43592a - std::panic::catch_unwind::h6d23b7c99550c7ff
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panic.rs:129:14
[INFO] [stderr]     23:     0x55d6ef43592a - std::rt::lang_start_internal::{{closure}}::h251a0c0729f15896
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/rt.rs:45:48
[INFO] [stderr]     24:     0x55d6ef43592a - std::panicking::try::do_call::h4830e784a9b9d1ad
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:403:40
[INFO] [stderr]     25:     0x55d6ef43592a - std::panicking::try::h0427859d2ad3b3b9
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panicking.rs:367:19
[INFO] [stderr]     26:     0x55d6ef43592a - std::panic::catch_unwind::h4079bfb63395be0f
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/panic.rs:129:14
[INFO] [stderr]     27:     0x55d6ef43592a - std::rt::lang_start_internal::h408e9d26a25a1f08
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/rt.rs:45:20
[INFO] [stderr]     28:     0x55d6eef25930 - std::rt::lang_start::ha2e7d9be823edeea
[INFO] [stderr]                                  at /rustc/8007b506ac5da629f223b755f5a5391edd5f6d01/library/std/src/rt.rs:62:5
[INFO] [stderr]     29:     0x55d6eef23a2c - main
[INFO] [stderr]     30:     0x7f2c86a0f0b3 - __libc_start_main
[INFO] [stderr]     31:     0x55d6eef1f19e - _start
[INFO] [stderr]     32:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "aeff841d0f2a201e665b33052d393987fd6c4efe48b47c1c486b3d55328ad569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeff841d0f2a201e665b33052d393987fd6c4efe48b47c1c486b3d55328ad569", kill_on_drop: false }`
[INFO] [stdout] aeff841d0f2a201e665b33052d393987fd6c4efe48b47c1c486b3d55328ad569