Dec 15 15:31:12.464 INFO testing euphrates_x64-0.1.0 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 15:31:12.464 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 15:31:12.974 INFO [stdout] cc6eb18dd08c1118d6ec35328bf364a157e89ffd40b704c5ac8609737dd8405c
Dec 15 15:31:12.976 INFO running `"docker" "start" "-a" "cc6eb18dd08c1118d6ec35328bf364a157e89ffd40b704c5ac8609737dd8405c"`
Dec 15 15:31:14.730 INFO [stderr] usermod: no changes
Dec 15 15:31:14.887 INFO [stderr]    Compiling euphrates_x64 v0.1.0 (/source)
Dec 15 15:31:14.899 INFO [stderr]    Compiling euphrates v0.1.0
Dec 15 15:31:16.657 INFO [stderr] error: failed to run custom build command for `euphrates_x64 v0.1.0 (/source)`
Dec 15 15:31:16.657 INFO [stderr] process didn't exit successfully: `/target/debug/build/euphrates_x64-8a5503783cef494d/build-script-build` (exit code: 101)
Dec 15 15:31:16.657 INFO [stderr] --- stdout
Dec 15 15:31:16.657 INFO [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
Dec 15 15:31:16.657 INFO [stderr] OPT_LEVEL = Some("0")
Dec 15 15:31:16.657 INFO [stderr] HOST = Some("x86_64-unknown-linux-gnu")
Dec 15 15:31:16.657 INFO [stderr] CC_x86_64-unknown-linux-gnu = None
Dec 15 15:31:16.657 INFO [stderr] CC_x86_64_unknown_linux_gnu = None
Dec 15 15:31:16.657 INFO [stderr] HOST_CC = None
Dec 15 15:31:16.657 INFO [stderr] CC = Some("clang")
Dec 15 15:31:16.657 INFO [stderr] CFLAGS_x86_64-unknown-linux-gnu = None
Dec 15 15:31:16.657 INFO [stderr] CFLAGS_x86_64_unknown_linux_gnu = None
Dec 15 15:31:16.657 INFO [stderr] HOST_CFLAGS = None
Dec 15 15:31:16.657 INFO [stderr] CFLAGS = None
Dec 15 15:31:16.657 INFO [stderr] DEBUG = Some("true")
Dec 15 15:31:16.657 INFO [stderr] running: "clang" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "--target=x86_64-unknown-linux-gnu" "-Wall" "-Wextra" "-o" "/target/debug/build/euphrates_x64-ef18b8c9ad2856fd/out/src/pattern_to_palette_indices.o" "-c" "src/pattern_to_palette_indices.s"
Dec 15 15:31:16.657 INFO [stderr] 
Dec 15 15:31:16.657 INFO [stderr] --- stderr
Dec 15 15:31:16.657 INFO [stderr] thread 'main' panicked at '
Dec 15 15:31:16.657 INFO [stderr] 
Dec 15 15:31:16.657 INFO [stderr] Internal error occurred: Failed to find tool. Is `clang` installed?
Dec 15 15:31:16.657 INFO [stderr] 
Dec 15 15:31:16.657 INFO [stderr] ', /cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.26/src/lib.rs:2295:5
Dec 15 15:31:16.657 INFO [stderr] stack backtrace:
Dec 15 15:31:16.657 INFO [stderr]    0:     0x55f9e0908f43 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h2c40bdfb30f25bdd
Dec 15 15:31:16.657 INFO [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Dec 15 15:31:16.657 INFO [stderr]    1:     0x55f9e09037c8 - std::sys_common::backtrace::_print::he11ceebc70626ac9
Dec 15 15:31:16.657 INFO [stderr]                                at src/libstd/sys_common/backtrace.rs:71
Dec 15 15:31:16.657 INFO [stderr]    2:     0x55f9e0907f32 - std::panicking::default_hook::{{closure}}::h4fde3ffb19c01413
Dec 15 15:31:16.658 INFO [stderr]                                at src/libstd/sys_common/backtrace.rs:59
Dec 15 15:31:16.658 INFO [stderr]                                at src/libstd/panicking.rs:210
Dec 15 15:31:16.658 INFO [stderr]    3:     0x55f9e0907ca4 - std::panicking::default_hook::hf0c15a583008ed0d
Dec 15 15:31:16.658 INFO [stderr]                                at src/libstd/panicking.rs:224
Dec 15 15:31:16.658 INFO [stderr]    4:     0x55f9e0908640 - std::panicking::rust_panic_with_hook::hc1663f6bc7813185
Dec 15 15:31:16.658 INFO [stderr]                                at src/libstd/panicking.rs:487
Dec 15 15:31:16.658 INFO [stderr]    5:     0x55f9e09081c1 - std::panicking::continue_panic_fmt::h42bc2d03ddf03b3e
Dec 15 15:31:16.658 INFO [stderr]                                at src/libstd/panicking.rs:394
Dec 15 15:31:16.658 INFO [stderr]    6:     0x55f9e090810e - std::panicking::begin_panic_fmt::h2207969583fb9324
Dec 15 15:31:16.658 INFO [stderr]                                at src/libstd/panicking.rs:349
Dec 15 15:31:16.658 INFO [stderr]    7:     0x55f9e089be6f - cc::fail::h262a5bb2fab9284d
Dec 15 15:31:16.658 INFO [stderr]                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.26/src/lib.rs:2295
Dec 15 15:31:16.658 INFO [stderr]    8:     0x55f9e0886eeb - cc::Build::compile::ha72523594c531b65
Dec 15 15:31:16.658 INFO [stderr]                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.26/src/lib.rs:950
Dec 15 15:31:16.658 INFO [stderr]    9:     0x55f9e08807aa - build_script_build::main::h8d3ea49e73a251cd
Dec 15 15:31:16.658 INFO [stderr]                                at /source/build.rs:6
Dec 15 15:31:16.658 INFO [stderr]   10:     0x55f9e08810df - std::rt::lang_start::{{closure}}::hae704dcbdb51533b
Dec 15 15:31:16.658 INFO [stderr]                                at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/rt.rs:74
Dec 15 15:31:16.658 INFO [stderr]   11:     0x55f9e0908042 - std::panicking::try::do_call::h7a0b92633a1e33d9
Dec 15 15:31:16.658 INFO [stderr]                                at src/libstd/rt.rs:59
Dec 15 15:31:16.658 INFO [stderr]                                at src/libstd/panicking.rs:306
Dec 15 15:31:16.658 INFO [stderr]   12:     0x55f9e091bd59 - __rust_maybe_catch_panic
Dec 15 15:31:16.658 INFO [stderr]                                at src/libpanic_unwind/lib.rs:102
Dec 15 15:31:16.658 INFO [stderr]   13:     0x55f9e0908a13 - std::rt::lang_start_internal::h3628368e60eab2bb
Dec 15 15:31:16.658 INFO [stderr]                                at src/libstd/panicking.rs:285
Dec 15 15:31:16.658 INFO [stderr]                                at src/libstd/panic.rs:398
Dec 15 15:31:16.658 INFO [stderr]                                at src/libstd/rt.rs:58
Dec 15 15:31:16.658 INFO [stderr]   14:     0x55f9e08810b8 - std::rt::lang_start::ha0e7fd55273f9045
Dec 15 15:31:16.658 INFO [stderr]                                at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/rt.rs:74
Dec 15 15:31:16.658 INFO [stderr]   15:     0x55f9e0880809 - main
Dec 15 15:31:16.658 INFO [stderr]   16:     0x7f27ee82a82f - __libc_start_main
Dec 15 15:31:16.658 INFO [stderr]   17:     0x55f9e0880498 - _start
Dec 15 15:31:16.658 INFO [stderr]   18:                0x0 - <unknown>
Dec 15 15:31:16.659 INFO [stderr] 
Dec 15 15:31:16.659 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 15 15:32:16.860 INFO [stderr] error: build failed
Dec 15 15:32:16.862 INFO [stderr] su: No module specific data is present
Dec 15 15:32:17.894 INFO running `"docker" "inspect" "cc6eb18dd08c1118d6ec35328bf364a157e89ffd40b704c5ac8609737dd8405c"`
Dec 15 15:32:18.213 INFO running `"docker" "rm" "-f" "cc6eb18dd08c1118d6ec35328bf364a157e89ffd40b704c5ac8609737dd8405c"`
Dec 15 15:32:18.495 INFO [stdout] cc6eb18dd08c1118d6ec35328bf364a157e89ffd40b704c5ac8609737dd8405c