[INFO] crate c3_clang_extensions 0.3.7 is already in cache
[INFO] checking c3_clang_extensions-0.3.7 against master#212aa3ea28d91a97d1e1261709c0b6e6790788e6 for pr-69340
[INFO] extracting crate c3_clang_extensions 0.3.7 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate c3_clang_extensions 0.3.7 on toolchain 212aa3ea28d91a97d1e1261709c0b6e6790788e6
[INFO] running `"/workspace/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9bafbb2bc733e49819e177103bec3960d54e661a812ee5dff5090fca096dda26
[INFO] running `"docker" "start" "-a" "9bafbb2bc733e49819e177103bec3960d54e661a812ee5dff5090fca096dda26"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling dunce v0.1.1
[INFO] [stderr]    Compiling clang-sys v0.20.1
[INFO] [stderr]    Compiling c3_clang_extensions v0.3.7 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> build.rs:14:10
[INFO] [stderr]    |
[INFO] [stderr] 14 |         .trim_right().to_owned()
[INFO] [stderr]    |          ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] 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] [stderr]   --> build.rs:61:31
[INFO] [stderr]    |
[INFO] [stderr] 61 |         .chain(fallback_paths.into_iter().map(Path::new));
[INFO] [stderr]    |                               ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[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-6955edaa99ba2a23/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:310:16
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x564b772b4e34 - backtrace::backtrace::libunwind::trace::h2f6ff4a33b1e15bd
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x564b772b4e34 - backtrace::backtrace::trace_unsynchronized::h1c74f218935a964e
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x564b772b4e34 - std::sys_common::backtrace::_print_fmt::he616a2ffb42d7095
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x564b772b4e34 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3630928d424e5705
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x564b772d3aec - core::fmt::write::h51cecfc4364da7ce
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1052
[INFO] [stderr]    5:     0x564b772b1837 - std::io::Write::write_fmt::hc4f750c57e05a637
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x564b772b72e5 - std::sys_common::backtrace::_print::hf5f697e6be8faefc
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x564b772b72e5 - std::sys_common::backtrace::print::h82e92953d052a9e7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x564b772b72e5 - std::panicking::default_hook::{{closure}}::hc7dd9b0d16882bee
[INFO] [stderr]                                at src/libstd/panicking.rs:204
[INFO] [stderr]    9:     0x564b772b7026 - std::panicking::default_hook::h36e2db9fb0f86871
[INFO] [stderr]                                at src/libstd/panicking.rs:224
[INFO] [stderr]   10:     0x564b772b78a2 - std::panicking::rust_panic_with_hook::h68e7a51e63e4fdd1
[INFO] [stderr]                                at src/libstd/panicking.rs:470
[INFO] [stderr]   11:     0x564b772b748b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:378
[INFO] [stderr]   12:     0x564b772d2d31 - core::panicking::panic_fmt::hdec8bb9799ee149c
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   13:     0x564b772d2b53 - core::option::expect_none_failed::h21127c685c77a023
[INFO] [stderr]                                at src/libcore/option.rs:1211
[INFO] [stderr]   14:     0x564b7726df1c - core::result::Result<T,E>::unwrap::hb9aa9fd00b76e880
[INFO] [stderr]                                at /rustc/212aa3ea28d91a97d1e1261709c0b6e6790788e6/src/libcore/result.rs:1003
[INFO] [stderr]   15:     0x564b7725dbec - build_script_build::link_static::ha614559f01f3503d
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clang-sys-0.20.1/build.rs:310
[INFO] [stderr]   16:     0x564b7725e864 - build_script_build::main::h0b4ef19e4391cc47
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clang-sys-0.20.1/build.rs:385
[INFO] [stderr]   17:     0x564b7726bbbb - std::rt::lang_start::{{closure}}::h8936996a2730489c
[INFO] [stderr]                                at /rustc/212aa3ea28d91a97d1e1261709c0b6e6790788e6/src/libstd/rt.rs:67
[INFO] [stderr]   18:     0x564b772b73b3 - std::rt::lang_start_internal::{{closure}}::h5734d12debc7ef02
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   19:     0x564b772b73b3 - std::panicking::try::do_call::ha59ccfbb0233cd67
[INFO] [stderr]                                at src/libstd/panicking.rs:303
[INFO] [stderr]   20:     0x564b772be4a7 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   21:     0x564b772b7d49 - std::panicking::try::hb1f8b5942fedc28f
[INFO] [stderr]                                at src/libstd/panicking.rs:281
[INFO] [stderr]   22:     0x564b772b7d49 - std::panic::catch_unwind::h3cfbd670c04cfa0a
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   23:     0x564b772b7d49 - std::rt::lang_start_internal::h86b43da953c7be5a
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   24:     0x564b7726bb97 - std::rt::lang_start::hec1eb797e08c2d15
[INFO] [stderr]                                at /rustc/212aa3ea28d91a97d1e1261709c0b6e6790788e6/src/libstd/rt.rs:67
[INFO] [stderr]   25:     0x564b7725ebaa - main
[INFO] [stderr]   26:     0x7f4c8b2e1b97 - __libc_start_main
[INFO] [stderr]   27:     0x564b772594fa - _start
[INFO] [stderr]   28:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "9bafbb2bc733e49819e177103bec3960d54e661a812ee5dff5090fca096dda26"`
[INFO] running `"docker" "rm" "-f" "9bafbb2bc733e49819e177103bec3960d54e661a812ee5dff5090fca096dda26"`
[INFO] [stdout] 9bafbb2bc733e49819e177103bec3960d54e661a812ee5dff5090fca096dda26