[INFO] fetching crate c3_clang_extensions 0.3.7...
[INFO] checking c3_clang_extensions-0.3.7 against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] extracting crate c3_clang_extensions 0.3.7 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate c3_clang_extensions 0.3.7 on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate c3_clang_extensions 0.3.7
[INFO] finished tweaking crates.io crate c3_clang_extensions 0.3.7
[INFO] tweaked toml for crates.io crate c3_clang_extensions 0.3.7 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97074af31a7e65b7cd33f57573a376d89d09cbbbd95776d897e96123d01d076d
[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" "97074af31a7e65b7cd33f57573a376d89d09cbbbd95776d897e96123d01d076d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97074af31a7e65b7cd33f57573a376d89d09cbbbd95776d897e96123d01d076d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97074af31a7e65b7cd33f57573a376d89d09cbbbd95776d897e96123d01d076d", kill_on_drop: false }`
[INFO] [stdout] 97074af31a7e65b7cd33f57573a376d89d09cbbbd95776d897e96123d01d076d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1cd5154a917622e2a9a7a1ab018a46aa355d81d6ed83bbd3e5fa7ebf5d2703d
[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" "f1cd5154a917622e2a9a7a1ab018a46aa355d81d6ed83bbd3e5fa7ebf5d2703d", kill_on_drop: false }`
[INFO] [stderr]    Compiling dunce v0.1.1
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]    Compiling clang-sys v0.20.1
[INFO] [stderr]    Compiling c3_clang_extensions v0.3.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right`: superseded by `trim_end`
[INFO] [stdout]   --> build.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 |         .trim_right().to_owned()
[INFO] [stdout]    |          ^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stdout]   --> build.rs:61:31
[INFO] [stdout]    |
[INFO] [stdout] 61 |         .chain(fallback_paths.into_iter().map(Path::new));
[INFO] [stdout]    |                               ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: failed to run custom build command for `clang-sys v0.20.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/clang-sys-4008f2201233fbd7/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: "couldn\'t find any of [\'libclang.a\'], set the LIBCLANG_STATIC_PATH environment variable to a path where one of these files can be found (skipped: [])"', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clang-sys-0.20.1/build.rs:310:78
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x556a24e5e360 - std::backtrace_rs::backtrace::libunwind::trace::h746c3e9529d524bc
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x556a24e5e360 - std::backtrace_rs::backtrace::trace_unsynchronized::h86340908ff889faa
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x556a24e5e360 - std::sys_common::backtrace::_print_fmt::h43f85f9b18230404
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x556a24e5e360 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hc132ae1a5b5aa7cd
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x556a24e7c8bc - core::fmt::write::hdf023a0036d2a25f
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/core/src/fmt/mod.rs:1078:17
[INFO] [stderr]      5:     0x556a24e5acf2 - std::io::Write::write_fmt::h8580846154bcb66a
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/io/mod.rs:1519:15
[INFO] [stderr]      6:     0x556a24e60095 - std::sys_common::backtrace::_print::h7ee55fed88d107a3
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x556a24e60095 - std::sys_common::backtrace::print::h54a7d3e52a524177
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x556a24e60095 - std::panicking::default_hook::{{closure}}::h60921e857bf55a40
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x556a24e5fbea - std::panicking::default_hook::hf0f9afb1017317fc
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x556a24e60831 - std::panicking::rust_panic_with_hook::h8d66bf42b407aaea
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x556a24e60377 - std::panicking::begin_panic_handler::{{closure}}::hde71edcd925d0c5e
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x556a24e5e81c - std::sys_common::backtrace::__rust_end_short_backtrace::h8a3c7d6cea578919
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x556a24e602d9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x556a24e7bc61 - core::panicking::panic_fmt::h20225113c4a2f8fd
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x556a24e7ba83 - core::option::expect_none_failed::hc6d6d4cea4fdc285
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/core/src/option.rs:1268:5
[INFO] [stderr]     16:     0x556a24e1b830 - core::result::Result<T,E>::unwrap::hc175dbdaced94ff5
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/core/src/result.rs:973:23
[INFO] [stderr]     17:     0x556a24e05f1c - build_script_build::link_static::h8d9e2bb29bb93ba6
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clang-sys-0.20.1/build.rs:310:16
[INFO] [stderr]     18:     0x556a24e06a04 - build_script_build::main::h7bcbe58c959923b8
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clang-sys-0.20.1/build.rs:385:9
[INFO] [stderr]     19:     0x556a24e1fe0b - core::ops::function::FnOnce::call_once::h0b1715e480daf494
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x556a24e17a9e - std::sys_common::backtrace::__rust_begin_short_backtrace::h8d9a902770d5a15f
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x556a24e0ece1 - std::rt::lang_start::{{closure}}::h3dc77f28c8c7f026
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/rt.rs:66:18
[INFO] [stderr]     22:     0x556a24e60c57 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h54c39b9b8451875a
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x556a24e60c57 - std::panicking::try::do_call::hcdfba51a06e21b42
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:379:40
[INFO] [stderr]     24:     0x556a24e60c57 - std::panicking::try::hb36953ccd24f930d
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panicking.rs:343:19
[INFO] [stderr]     25:     0x556a24e60c57 - std::panic::catch_unwind::hbb374cd03beb3824
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/panic.rs:396:14
[INFO] [stderr]     26:     0x556a24e60c57 - std::rt::lang_start_internal::h97dca9624db2aa85
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/rt.rs:51:25
[INFO] [stderr]     27:     0x556a24e0ecb7 - std::rt::lang_start::hcc4ed8ba3ff0f997
[INFO] [stderr]                                  at /rustc/c9228570668803e3e6402770d55f23a12c9ae686/library/std/src/rt.rs:65:5
[INFO] [stderr]     28:     0x556a24e06d0a - main
[INFO] [stderr]     29:     0x7f53bfc7e0b3 - __libc_start_main
[INFO] [stderr]     30:     0x556a24e020be - _start
[INFO] [stderr]     31:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "f1cd5154a917622e2a9a7a1ab018a46aa355d81d6ed83bbd3e5fa7ebf5d2703d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1cd5154a917622e2a9a7a1ab018a46aa355d81d6ed83bbd3e5fa7ebf5d2703d", kill_on_drop: false }`
[INFO] [stdout] f1cd5154a917622e2a9a7a1ab018a46aa355d81d6ed83bbd3e5fa7ebf5d2703d