Dec 15 15:31:16.972 INFO testing euphrates_x64-0.1.0 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 15:31:16.972 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15:31:17.636 INFO [stdout] f0283a340485d94b6c2bfa66d9bac716e16035c5e800dc475eb2f16648ce0f66
Dec 15 15:31:17.638 INFO running `"docker" "start" "-a" "f0283a340485d94b6c2bfa66d9bac716e16035c5e800dc475eb2f16648ce0f66"`
Dec 15 15:31:20.148 INFO [stderr] usermod: no changes
Dec 15 15:31:20.293 INFO [stderr]    Compiling euphrates_x64 v0.1.0 (/source)
Dec 15 15:31:20.296 INFO [stderr]    Compiling euphrates v0.1.0
Dec 15 15:31:21.995 INFO [stderr] error: failed to run custom build command for `euphrates_x64 v0.1.0 (/source)`
Dec 15 15:31:21.995 INFO [stderr] process didn't exit successfully: `/target/debug/build/euphrates_x64-2b8f288b4d790801/build-script-build` (exit code: 101)
Dec 15 15:31:21.995 INFO [stderr] --- stdout
Dec 15 15:31:21.995 INFO [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
Dec 15 15:31:21.995 INFO [stderr] OPT_LEVEL = Some("0")
Dec 15 15:31:21.995 INFO [stderr] HOST = Some("x86_64-unknown-linux-gnu")
Dec 15 15:31:21.995 INFO [stderr] CC_x86_64-unknown-linux-gnu = None
Dec 15 15:31:21.995 INFO [stderr] CC_x86_64_unknown_linux_gnu = None
Dec 15 15:31:21.995 INFO [stderr] HOST_CC = None
Dec 15 15:31:21.995 INFO [stderr] CC = Some("clang")
Dec 15 15:31:21.995 INFO [stderr] CFLAGS_x86_64-unknown-linux-gnu = None
Dec 15 15:31:21.995 INFO [stderr] CFLAGS_x86_64_unknown_linux_gnu = None
Dec 15 15:31:21.995 INFO [stderr] HOST_CFLAGS = None
Dec 15 15:31:21.996 INFO [stderr] CFLAGS = None
Dec 15 15:31:21.996 INFO [stderr] DEBUG = Some("true")
Dec 15 15:31:21.996 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-e00309dcff62d565/out/src/pattern_to_palette_indices.o" "-c" "src/pattern_to_palette_indices.s"
Dec 15 15:31:21.996 INFO [stderr] 
Dec 15 15:31:21.996 INFO [stderr] --- stderr
Dec 15 15:31:21.996 INFO [stderr] thread 'main' panicked at '
Dec 15 15:31:21.996 INFO [stderr] 
Dec 15 15:31:21.996 INFO [stderr] Internal error occurred: Failed to find tool. Is `clang` installed?
Dec 15 15:31:21.996 INFO [stderr] 
Dec 15 15:31:21.996 INFO [stderr] ', /cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.26/src/lib.rs:2295:5
Dec 15 15:31:21.996 INFO [stderr] stack backtrace:
Dec 15 15:31:21.996 INFO [stderr]    0:     0x558992943f43 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::heb4d4d98bcf46d90
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Dec 15 15:31:21.996 INFO [stderr]    1:     0x55899293e7c8 - std::sys_common::backtrace::_print::h919420b22c2473e3
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/sys_common/backtrace.rs:71
Dec 15 15:31:21.996 INFO [stderr]    2:     0x558992942f32 - std::panicking::default_hook::{{closure}}::h22d4ac021acb88d5
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/sys_common/backtrace.rs:59
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/panicking.rs:210
Dec 15 15:31:21.996 INFO [stderr]    3:     0x558992942ca4 - std::panicking::default_hook::h1134a4d34aab4428
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/panicking.rs:224
Dec 15 15:31:21.996 INFO [stderr]    4:     0x558992943640 - std::panicking::rust_panic_with_hook::h9c89557c251f2d42
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/panicking.rs:487
Dec 15 15:31:21.996 INFO [stderr]    5:     0x5589929431c1 - std::panicking::continue_panic_fmt::h6b63497ce98499d4
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/panicking.rs:394
Dec 15 15:31:21.996 INFO [stderr]    6:     0x55899294310e - std::panicking::begin_panic_fmt::h33c12d7eb9e26fea
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/panicking.rs:349
Dec 15 15:31:21.996 INFO [stderr]    7:     0x5589928d6e6f - cc::fail::hae64f3724fabdac7
Dec 15 15:31:21.996 INFO [stderr]                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.26/src/lib.rs:2295
Dec 15 15:31:21.996 INFO [stderr]    8:     0x5589928c1eeb - cc::Build::compile::h5ddb0d276405eea8
Dec 15 15:31:21.996 INFO [stderr]                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.26/src/lib.rs:950
Dec 15 15:31:21.996 INFO [stderr]    9:     0x5589928bb9ca - build_script_build::main::hd6c1bfa2743f9a6c
Dec 15 15:31:21.996 INFO [stderr]                                at /source/build.rs:6
Dec 15 15:31:21.996 INFO [stderr]   10:     0x5589928bb92f - std::rt::lang_start::{{closure}}::h7fb346f396c92e09
Dec 15 15:31:21.996 INFO [stderr]                                at /rustc/bd47d6825bf4090517549d33cfef10d3300b4a75/src/libstd/rt.rs:74
Dec 15 15:31:21.996 INFO [stderr]   11:     0x558992943042 - std::panicking::try::do_call::hd22385b9fba3aa8f
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/rt.rs:59
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/panicking.rs:306
Dec 15 15:31:21.996 INFO [stderr]   12:     0x558992956d59 - __rust_maybe_catch_panic
Dec 15 15:31:21.996 INFO [stderr]                                at src/libpanic_unwind/lib.rs:102
Dec 15 15:31:21.996 INFO [stderr]   13:     0x558992943a13 - std::rt::lang_start_internal::h884c76ddf53aa8b4
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/panicking.rs:285
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/panic.rs:398
Dec 15 15:31:21.996 INFO [stderr]                                at src/libstd/rt.rs:58
Dec 15 15:31:21.996 INFO [stderr]   14:     0x5589928bb908 - std::rt::lang_start::he216afa593d778f3
Dec 15 15:31:21.996 INFO [stderr]                                at /rustc/bd47d6825bf4090517549d33cfef10d3300b4a75/src/libstd/rt.rs:74
Dec 15 15:31:21.996 INFO [stderr]   15:     0x5589928bba29 - main
Dec 15 15:31:21.996 INFO [stderr]   16:     0x7f1e32a0982f - __libc_start_main
Dec 15 15:31:21.996 INFO [stderr]   17:     0x5589928bb498 - _start
Dec 15 15:31:21.996 INFO [stderr]   18:                0x0 - <unknown>
Dec 15 15:31:21.996 INFO [stderr] 
Dec 15 15:31:22.003 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 15 15:32:27.071 INFO [stderr] error: build failed
Dec 15 15:32:27.073 INFO [stderr] su: No module specific data is present
Dec 15 15:32:28.406 INFO running `"docker" "inspect" "f0283a340485d94b6c2bfa66d9bac716e16035c5e800dc475eb2f16648ce0f66"`
Dec 15 15:32:28.760 INFO running `"docker" "rm" "-f" "f0283a340485d94b6c2bfa66d9bac716e16035c5e800dc475eb2f16648ce0f66"`
Dec 15 15:32:28.981 INFO [stdout] f0283a340485d94b6c2bfa66d9bac716e16035c5e800dc475eb2f16648ce0f66