[INFO] cloning repository https://github.com/BurNiinTRee/amethyst-mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BurNiinTRee/amethyst-mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurNiinTRee%2Famethyst-mandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurNiinTRee%2Famethyst-mandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43fd2ce94e75b17311d210f16fae375be5f0f729
[INFO] documenting BurNiinTRee/amethyst-mandelbrot against 1.91.0 for beta-1.92-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBurNiinTRee%2Famethyst-mandelbrot" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BurNiinTRee/amethyst-mandelbrot
[INFO] finished tweaking git repo https://github.com/BurNiinTRee/amethyst-mandelbrot
[INFO] tweaked toml for git repo https://github.com/BurNiinTRee/amethyst-mandelbrot written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BurNiinTRee/amethyst-mandelbrot on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BurNiinTRee/amethyst-mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e60987280969c02526517843c980bcbf7cc51a4a4c67cf3d32bdf6f20749514
[INFO] running `Command { std: "docker" "start" "-a" "6e60987280969c02526517843c980bcbf7cc51a4a4c67cf3d32bdf6f20749514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e60987280969c02526517843c980bcbf7cc51a4a4c67cf3d32bdf6f20749514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e60987280969c02526517843c980bcbf7cc51a4a4c67cf3d32bdf6f20749514", kill_on_drop: false }`
[INFO] [stdout] 6e60987280969c02526517843c980bcbf7cc51a4a4c67cf3d32bdf6f20749514
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30c8d4211fc5ba3346cb3705de4966e0448fcf401545d0fe773f8b59b3ae9283
[INFO] running `Command { std: "docker" "start" "-a" "30c8d4211fc5ba3346cb3705de4966e0448fcf401545d0fe773f8b59b3ae9283", kill_on_drop: false }`
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[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling lexical v2.2.2
[INFO] [stderr] warning: shaderc-sys@0.5.1: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: shaderc-sys@0.5.1: Pre-built library not found.  Falling back to from-source build
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.5.1`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/shaderc-sys-53f02e3fcb7bbe44/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:warning=Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr]   cargo:warning=Pre-built library not found.  Falling back to from-source build
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (2720) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-sys-0.5.1/build/cmd_finder.rs:45:13:
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   couldn't find required command: "python"
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x629d304c8c32 - std::backtrace_rs::backtrace::libunwind::trace::h62f3c6bea0fedab3
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x629d304c8c32 - std::backtrace_rs::backtrace::trace_unsynchronized::hc41aaca6c0af0bde
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x629d304c8c32 - std::sys::backtrace::_print_fmt::h33ac2b97007106cc
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x629d304c8c32 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h4e0a3aeea0f9c085
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x629d304d8f3f - core::fmt::rt::Argument::fmt::h1edd6a3e00b22f10
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x629d304d8f3f - core::fmt::write::hecf68a131630c74d
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]      6:     0x629d30499621 - std::io::default_write_fmt::haf8355dc2afbec95
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x629d30499621 - std::io::Write::write_fmt::h93c9a261259c931a
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x629d304a40f2 - std::sys::backtrace::BacktraceLock::print::h75160192768e5621
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x629d304a69ac - std::panicking::default_hook::{{closure}}::h14d82797cfb1ddcb
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x629d304a6806 - std::panicking::default_hook::h63f9bf8161c5d325
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x629d304a7035 - std::panicking::panic_with_hook::h3173740e06bd0752
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x629d304a6eca - std::panicking::panic_handler::{{closure}}::hbac492c61eb56a87
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x629d304a4239 - std::sys::backtrace::__rust_end_short_backtrace::haa3eac3df9535320
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x629d3048d9cd - __rustc[de0091b922c53d7e]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x629d304dc960 - core::panicking::panic_fmt::h5138da2ef87be35b
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x629d30448adb - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h4fb2568a503a324c
[INFO] [stderr]     17:     0x629d3044cef5 - core::option::Option<T>::unwrap_or_else::hfe3d89666eee977f
[INFO] [stderr]     18:     0x629d30448a5c - build_script_build::cmd_finder::CommandFinder::must_have::h241d3cb95320af76
[INFO] [stderr]     19:     0x629d3044b04c - build_script_build::main::h50d77200442f03f2
[INFO] [stderr]     20:     0x629d3044c253 - core::ops::function::FnOnce::call_once::h67c5d367497a89eb
[INFO] [stderr]     21:     0x629d3044be86 - std::sys::backtrace::__rust_begin_short_backtrace::h672be26bb879f232
[INFO] [stderr]     22:     0x629d3044be09 - std::rt::lang_start::{{closure}}::hcb4e52ea55e938c0
[INFO] [stderr]     23:     0x629d3049afe0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hc7ed5622678f5124
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x629d3049afe0 - std::panicking::catch_unwind::do_call::hc59414a11cf2a25a
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40
[INFO] [stderr]     25:     0x629d3049afe0 - std::panicking::catch_unwind::hff67b45e0819a036
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19
[INFO] [stderr]     26:     0x629d3049afe0 - std::panic::catch_unwind::hec0fb0db85f7fd60
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x629d3049afe0 - std::rt::lang_start_internal::{{closure}}::h74bea026352620a3
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x629d3049afe0 - std::panicking::catch_unwind::do_call::h931ef1bf7bdfcae2
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40
[INFO] [stderr]     29:     0x629d3049afe0 - std::panicking::catch_unwind::h3816830c825cbe04
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19
[INFO] [stderr]     30:     0x629d3049afe0 - std::panic::catch_unwind::h408406c8f02ebb9d
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x629d3049afe0 - std::rt::lang_start_internal::hce2b8b328837374b
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x629d3044bdf1 - std::rt::lang_start::heb35670686e4c070
[INFO] [stderr]     33:     0x629d3044e765 - main
[INFO] [stderr]     34:     0x71bc63b361ca - <unknown>
[INFO] [stderr]     35:     0x71bc63b3628b - __libc_start_main
[INFO] [stderr]     36:     0x629d30447b75 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "30c8d4211fc5ba3346cb3705de4966e0448fcf401545d0fe773f8b59b3ae9283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30c8d4211fc5ba3346cb3705de4966e0448fcf401545d0fe773f8b59b3ae9283", kill_on_drop: false }`
[INFO] [stdout] 30c8d4211fc5ba3346cb3705de4966e0448fcf401545d0fe773f8b59b3ae9283
