[INFO] cloning repository https://github.com/BenSandeen/learning_vulkan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BenSandeen/learning_vulkan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenSandeen%2Flearning_vulkan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenSandeen%2Flearning_vulkan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c4763e330f0d01998f47efdb757b33f5c0ab48a
[INFO] checking BenSandeen/learning_vulkan against try#863511eff87e66198b396935f3b5c8a543022f53 for pr-139493-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenSandeen%2Flearning_vulkan" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BenSandeen/learning_vulkan
[INFO] finished tweaking git repo https://github.com/BenSandeen/learning_vulkan
[INFO] tweaked toml for git repo https://github.com/BenSandeen/learning_vulkan written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BenSandeen/learning_vulkan on toolchain 863511eff87e66198b396935f3b5c8a543022f53
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+863511eff87e66198b396935f3b5c8a543022f53" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BenSandeen/learning_vulkan 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" "+863511eff87e66198b396935f3b5c8a543022f53" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+863511eff87e66198b396935f3b5c8a543022f53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24a357e89111879dac0095837e21eee3d366a0dc259ea0e84399b700d241ab28
[INFO] running `Command { std: "docker" "start" "-a" "24a357e89111879dac0095837e21eee3d366a0dc259ea0e84399b700d241ab28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24a357e89111879dac0095837e21eee3d366a0dc259ea0e84399b700d241ab28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24a357e89111879dac0095837e21eee3d366a0dc259ea0e84399b700d241ab28", kill_on_drop: false }`
[INFO] [stdout] 24a357e89111879dac0095837e21eee3d366a0dc259ea0e84399b700d241ab28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+863511eff87e66198b396935f3b5c8a543022f53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6369c5104cc1b94c7a193572510b7066e153012344a4f9920d82261772d438f
[INFO] running `Command { std: "docker" "start" "-a" "a6369c5104cc1b94c7a193572510b7066e153012344a4f9920d82261772d438f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling xml-rs v0.8.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking lock_api v0.3.3
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling vulkano v0.13.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking vk-sys v0.4.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking half v1.5.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking rusttype v0.8.2
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling shaderc-sys v0.5.1
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking crossbeam v0.7.3
[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-23733fcc791d6b5b/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' (1163) 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:     0x57c36765ce12 - std::backtrace_rs::backtrace::libunwind::trace::hf31a7c1fc381eb04
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x57c36765ce12 - std::backtrace_rs::backtrace::trace_unsynchronized::h9bf56ff47b5cbb0c
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x57c36765ce12 - std::sys::backtrace::_print_fmt::hc741bb57983c9a6f
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x57c36765ce12 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h54c1c093d5485bc6
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x57c36766cf4f - core::fmt::rt::Argument::fmt::h82e15594293def21
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x57c36766cf4f - core::fmt::write::h64395015bd04ad94
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x57c36762de13 - std::io::default_write_fmt::h086f9c3dbf9a082e
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x57c36762de13 - std::io::Write::write_fmt::haf027b4e6d0a12fd
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x57c367638602 - std::sys::backtrace::BacktraceLock::print::hf3bb5ef988caad39
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x57c36763aebc - std::panicking::default_hook::{{closure}}::hed7f386126523ff3
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x57c36763ad16 - std::panicking::default_hook::h9c76074b76815a28
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x57c36763b495 - std::panicking::panic_with_hook::hd8f94b5f9fd0d304
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x57c36763b32a - std::panicking::panic_handler::{{closure}}::he23951e890a72256
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x57c367638739 - std::sys::backtrace::__rust_end_short_backtrace::h5539a47964999ae3
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x57c3676221fd - __rustc[f0d60d9076707888]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x57c3676709a0 - core::panicking::panic_fmt::haee6fce472fe7948
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x57c3675df45b - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h2fc85e6a66fa350e
[INFO] [stderr]     17:     0x57c3675e37c9 - core::option::Option<T>::unwrap_or_else::h86c85bc3781ad3ba
[INFO] [stderr]     18:     0x57c3675df3dc - build_script_build::cmd_finder::CommandFinder::must_have::he49126b9f3c43646
[INFO] [stderr]     19:     0x57c3675e19c5 - build_script_build::main::h6d446b23ccbb36b7
[INFO] [stderr]     20:     0x57c3675e2ab3 - core::ops::function::FnOnce::call_once::h201887dfac459682
[INFO] [stderr]     21:     0x57c3675e2786 - std::sys::backtrace::__rust_begin_short_backtrace::h98c67a6146d0f120
[INFO] [stderr]     22:     0x57c3675e2709 - std::rt::lang_start::{{closure}}::h4b49ec0903b6eb80
[INFO] [stderr]     23:     0x57c36762f680 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h1b632b180b522cb6
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x57c36762f680 - std::panicking::catch_unwind::do_call::hda811d37ebc96fda
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/panicking.rs:590:40
[INFO] [stderr]     25:     0x57c36762f680 - std::panicking::catch_unwind::h419123901e850c49
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/panicking.rs:553:19
[INFO] [stderr]     26:     0x57c36762f680 - std::panic::catch_unwind::h0a03be29d3f3cafb
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x57c36762f680 - std::rt::lang_start_internal::{{closure}}::h3d9079ba42c45cb7
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x57c36762f680 - std::panicking::catch_unwind::do_call::h3c2458fd56ca985e
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/panicking.rs:590:40
[INFO] [stderr]     29:     0x57c36762f680 - std::panicking::catch_unwind::h87a3b09c3ccea810
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/panicking.rs:553:19
[INFO] [stderr]     30:     0x57c36762f680 - std::panic::catch_unwind::h72bbac63cdee5d13
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x57c36762f680 - std::rt::lang_start_internal::h027485e8e9c2c4f0
[INFO] [stderr]                                  at /rustc/863511eff87e66198b396935f3b5c8a543022f53/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x57c3675e26f1 - std::rt::lang_start::hab01606860ed5582
[INFO] [stderr]     33:     0x57c3675e4f95 - main
[INFO] [stderr]     34:     0x70588fa0c1ca - <unknown>
[INFO] [stderr]     35:     0x70588fa0c28b - __libc_start_main
[INFO] [stderr]     36:     0x57c3675de4f5 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a6369c5104cc1b94c7a193572510b7066e153012344a4f9920d82261772d438f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6369c5104cc1b94c7a193572510b7066e153012344a4f9920d82261772d438f", kill_on_drop: false }`
[INFO] [stdout] a6369c5104cc1b94c7a193572510b7066e153012344a4f9920d82261772d438f
