[INFO] cloning repository https://github.com/joemspalding/wgpu-learn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joemspalding/wgpu-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoemspalding%2Fwgpu-learn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoemspalding%2Fwgpu-learn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ed859352dc6752d57dab2be2d796a93029e755fe [INFO] checking joemspalding/wgpu-learn against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoemspalding%2Fwgpu-learn" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/joemspalding/wgpu-learn on toolchain 506512391b1a75ae450d36c9420978402a91abcc [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/joemspalding/wgpu-learn [INFO] finished tweaking git repo https://github.com/joemspalding/wgpu-learn [INFO] tweaked toml for git repo https://github.com/joemspalding/wgpu-learn written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/joemspalding/wgpu-learn 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded gfx-backend-dx11 v0.6.15 [INFO] [stderr] Downloaded gfx-backend-metal v0.6.4 [INFO] [stderr] Downloaded spirv_cross v0.22.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6580898baf59804154dd40388065145592e5d48e150727113aaec91e19b99fbc [INFO] running `Command { std: "docker" "start" "-a" "6580898baf59804154dd40388065145592e5d48e150727113aaec91e19b99fbc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6580898baf59804154dd40388065145592e5d48e150727113aaec91e19b99fbc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6580898baf59804154dd40388065145592e5d48e150727113aaec91e19b99fbc", kill_on_drop: false }` [INFO] [stdout] 6580898baf59804154dd40388065145592e5d48e150727113aaec91e19b99fbc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 93988ed454793351b52fd850ebfbdff919cc3141dd9a7989304339e0f8117a1b [INFO] running `Command { std: "docker" "start" "-a" "93988ed454793351b52fd850ebfbdff919cc3141dd9a7989304339e0f8117a1b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking libloading v0.6.5 [INFO] [stderr] Compiling const_fn v0.4.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.0 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling xml-rs v0.8.3 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking raw-window-handle v0.3.3 [INFO] [stderr] Checking smallvec v1.5.0 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Checking net2 v0.2.35 [INFO] [stderr] Compiling jobserver v0.1.21 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking crossbeam-epoch v0.9.0 [INFO] [stderr] Compiling cc v1.0.62 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Compiling wayland-scanner v0.23.6 [INFO] [stderr] Checking approx v0.3.2 [INFO] [stderr] Checking gfx-hal v0.6.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking dlib v0.4.2 [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Compiling cmake v0.1.45 [INFO] [stderr] Compiling proc-macro-nested v0.1.6 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking wayland-sys v0.23.6 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking ordered-float v1.1.0 [INFO] [stderr] Compiling x11 v2.18.2 [INFO] [stderr] Compiling shaderc-sys v0.6.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Checking stb_truetype v0.3.1 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking instant v0.1.8 [INFO] [stderr] Checking futures-sink v0.3.8 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking futures-core v0.3.8 [INFO] [stderr] Checking rusttype v0.8.3 [INFO] [stderr] Checking futures-channel v0.3.8 [INFO] [stderr] Checking futures-task v0.3.8 [INFO] [stderr] The following warnings were emitted during compilation: [INFO] [stderr] [INFO] [stderr] warning: shaderc-sys@0.6.3: Checking for system installed libraries. Use --features = build-from-source to disable this behavior [INFO] [stderr] warning: shaderc-sys@0.6.3: System installed library not found. Falling back to build from source [INFO] [stderr] [INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.6.3` [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-ee28c61f5c6eb067/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=System installed library not found. Falling back to build from source [INFO] [stderr] [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/shaderc-sys-0.6.3/build/cmd_finder.rs:50:13: [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] couldn't find required command: "python" [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55de41a67305 - std::backtrace_rs::backtrace::libunwind::trace::h876d7c806a499a4c [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5 [INFO] [stderr] 1: 0x55de41a67305 - std::backtrace_rs::backtrace::trace_unsynchronized::h93aa6ac20204363f [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x55de41a67305 - std::sys_common::backtrace::_print_fmt::haa4d06348037420c [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stderr] 3: 0x55de41a67305 - ::fmt::hb19a1068483db389 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stderr] 4: 0x55de41a8c1bb - core::fmt::rt::Argument::fmt::he1186800a1f8dba1 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/fmt/rt.rs:165:63 [INFO] [stderr] 5: 0x55de41a8c1bb - core::fmt::write::h93b97d526ac83ab7 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/fmt/mod.rs:1169:21 [INFO] [stderr] 6: 0x55de41a640bf - std::io::Write::write_fmt::h5b8b8a434bcca5dd [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/io/mod.rs:1835:15 [INFO] [stderr] 7: 0x55de41a670de - std::sys_common::backtrace::_print::h68eb04d9824256f0 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stderr] 8: 0x55de41a670de - std::sys_common::backtrace::print::h9c98f0d9c4306586 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stderr] 9: 0x55de41a68669 - std::panicking::default_hook::{{closure}}::hcf6830dc400daae4 [INFO] [stderr] 10: 0x55de41a683ad - std::panicking::default_hook::h483615856e3a5cc0 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:298:9 [INFO] [stderr] 11: 0x55de41a68b73 - std::panicking::rust_panic_with_hook::h36ebc998f351e5fd [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:795:13 [INFO] [stderr] 12: 0x55de41a68a54 - std::panicking::begin_panic_handler::{{closure}}::h686207a93492b797 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:664:13 [INFO] [stderr] 13: 0x55de41a677c9 - std::sys_common::backtrace::__rust_end_short_backtrace::h2e37e6bf5aac538a [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stderr] 14: 0x55de41a68787 - rust_begin_unwind [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:652:5 [INFO] [stderr] 15: 0x55de41a8af43 - core::panicking::panic_fmt::heae5d8e5e3703b89 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/panicking.rs:72:14 [INFO] [stderr] 16: 0x55de419f377a - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h1adae8ce76cc583e [INFO] [stderr] 17: 0x55de419f0833 - core::option::Option::unwrap_or_else::h4df543a090f67495 [INFO] [stderr] 18: 0x55de419f36dc - build_script_build::cmd_finder::CommandFinder::must_have::hb3625ce9f9eb79c0 [INFO] [stderr] 19: 0x55de419f74bf - build_script_build::main::he2e6dfec68e61e15 [INFO] [stderr] 20: 0x55de419efd93 - core::ops::function::FnOnce::call_once::ha4a05725839ec36e [INFO] [stderr] 21: 0x55de419eed86 - std::sys_common::backtrace::__rust_begin_short_backtrace::h370f95fefa838b45 [INFO] [stderr] 22: 0x55de419ef429 - std::rt::lang_start::{{closure}}::h44467e710791f6b1 [INFO] [stderr] 23: 0x55de41a5fe7d - core::ops::function::impls:: for &F>::call_once::h75d0a4fe40296b94 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/ops/function.rs:284:13 [INFO] [stderr] 24: 0x55de41a5fe7d - std::panicking::try::do_call::ha27ca65264b021a4 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:559:40 [INFO] [stderr] 25: 0x55de41a5fe7d - std::panicking::try::h901e100a17b3cd54 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:523:19 [INFO] [stderr] 26: 0x55de41a5fe7d - std::panic::catch_unwind::h13d256f1691dfb07 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panic.rs:149:14 [INFO] [stderr] 27: 0x55de41a5fe7d - std::rt::lang_start_internal::{{closure}}::hdf5a5a26190e1fd8 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/rt.rs:141:48 [INFO] [stderr] 28: 0x55de41a5fe7d - std::panicking::try::do_call::h3a8fb98242ec30e5 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:559:40 [INFO] [stderr] 29: 0x55de41a5fe7d - std::panicking::try::h881801cd3cb8ba77 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:523:19 [INFO] [stderr] 30: 0x55de41a5fe7d - std::panic::catch_unwind::he14d380083644433 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panic.rs:149:14 [INFO] [stderr] 31: 0x55de41a5fe7d - std::rt::lang_start_internal::hf560e7575b65e65f [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/rt.rs:141:20 [INFO] [stderr] 32: 0x55de419ef407 - std::rt::lang_start::h04504a9e94881b7b [INFO] [stderr] 33: 0x55de419f7ec5 - main [INFO] [stderr] 34: 0x7fd2d909dd90 - [INFO] [stderr] 35: 0x7fd2d909de40 - __libc_start_main [INFO] [stderr] 36: 0x55de419ee985 - _start [INFO] [stderr] 37: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "93988ed454793351b52fd850ebfbdff919cc3141dd9a7989304339e0f8117a1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "93988ed454793351b52fd850ebfbdff919cc3141dd9a7989304339e0f8117a1b", kill_on_drop: false }` [INFO] [stdout] 93988ed454793351b52fd850ebfbdff919cc3141dd9a7989304339e0f8117a1b