[INFO] cloning repository https://github.com/tuzz/learning-wgpu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tuzz/learning-wgpu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuzz%2Flearning-wgpu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuzz%2Flearning-wgpu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a98428c0258c10d52ab7a401dc40aa84187adba
[INFO] checking tuzz/learning-wgpu/4a98428c0258c10d52ab7a401dc40aa84187adba against master#ab1d2444533d829e2d5cff6634cd3c70de6d7103 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuzz%2Flearning-wgpu" "/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/tuzz/learning-wgpu
[INFO] finished tweaking git repo https://github.com/tuzz/learning-wgpu
[INFO] tweaked toml for git repo https://github.com/tuzz/learning-wgpu written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tuzz/learning-wgpu on toolchain ab1d2444533d829e2d5cff6634cd3c70de6d7103
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab1d2444533d829e2d5cff6634cd3c70de6d7103" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tuzz/learning-wgpu 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" "+ab1d2444533d829e2d5cff6634cd3c70de6d7103" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wayland-scanner v0.23.6
[INFO] [stderr]   Downloaded calloop v0.4.4
[INFO] [stderr]   Downloaded wayland-commons v0.23.6
[INFO] [stderr]   Downloaded wayland-sys v0.23.6
[INFO] [stderr]   Downloaded storage-map v0.2.0
[INFO] [stderr]   Downloaded peek-poke-derive v0.2.1
[INFO] [stderr]   Downloaded range-alloc v0.1.1
[INFO] [stderr]   Downloaded gfx-descriptor v0.1.0
[INFO] [stderr]   Downloaded gfx-backend-empty v0.5.2
[INFO] [stderr]   Downloaded cmake v0.1.44
[INFO] [stderr]   Downloaded gfx-auxil v0.4.0
[INFO] [stderr]   Downloaded d3d12 v0.3.1
[INFO] [stderr]   Downloaded cocoa v0.19.1
[INFO] [stderr]   Downloaded shaderc v0.6.2
[INFO] [stderr]   Downloaded gfx-backend-vulkan v0.5.11
[INFO] [stderr]   Downloaded gfx-backend-dx11 v0.5.2
[INFO] [stderr]   Downloaded gfx-backend-dx12 v0.5.8
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.6.6
[INFO] [stderr]   Downloaded gfx-backend-metal v0.5.6
[INFO] [stderr]   Downloaded wayland-protocols v0.23.6
[INFO] [stderr]   Downloaded atom v0.3.5
[INFO] [stderr]   Downloaded wgpu v0.5.2
[INFO] [stderr]   Downloaded gfx-hal v0.5.3
[INFO] [stderr]   Downloaded wgpu-core v0.5.6
[INFO] [stderr]   Downloaded core-foundation v0.9.0
[INFO] [stderr]   Downloaded core-foundation-sys v0.8.0
[INFO] [stderr]   Downloaded winit v0.21.0
[INFO] [stderr]   Downloaded gfx-memory v0.1.3
[INFO] [stderr]   Downloaded peek-poke v0.2.0
[INFO] [stderr]   Downloaded wgpu-types v0.5.1
[INFO] [stderr]   Downloaded wayland-client v0.23.6
[INFO] [stderr]   Downloaded core-graphics-types v0.1.0
[INFO] [stderr]   Downloaded wgpu-native v0.5.1
[INFO] [stderr]   Downloaded spirv_cross v0.20.0
[INFO] [stderr]   Downloaded metal v0.20.0
[INFO] [stderr]   Downloaded shaderc-sys v0.6.2
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ab1d2444533d829e2d5cff6634cd3c70de6d7103" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d6744111e7ac470b20e1d55985ca2e8fcf6ccf72ab71c1f0e106b0ae46462b7
[INFO] running `Command { std: "docker" "start" "-a" "7d6744111e7ac470b20e1d55985ca2e8fcf6ccf72ab71c1f0e106b0ae46462b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d6744111e7ac470b20e1d55985ca2e8fcf6ccf72ab71c1f0e106b0ae46462b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d6744111e7ac470b20e1d55985ca2e8fcf6ccf72ab71c1f0e106b0ae46462b7", kill_on_drop: false }`
[INFO] [stdout] 7d6744111e7ac470b20e1d55985ca2e8fcf6ccf72ab71c1f0e106b0ae46462b7
[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=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" "+ab1d2444533d829e2d5cff6634cd3c70de6d7103" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7439f548b96998f0e96dcc550de8cda66692d3a2e312a2821b812b3d08e779f
[INFO] running `Command { std: "docker" "start" "-a" "e7439f548b96998f0e96dcc550de8cda66692d3a2e312a2821b812b3d08e779f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking ash v0.31.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking gfx-hal v0.5.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]    Compiling shaderc-sys v0.6.2
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr] warning: shaderc-sys@0.6.2: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: shaderc-sys@0.6.2: System installed library not found.  Falling back to build from source
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.6.2`
[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-3cd81833b23a18f8/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] 
[INFO] [stderr]   thread 'main' (1120) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-sys-0.6.2/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:     0x5e9ca278b5d2 - std::backtrace_rs::backtrace::libunwind::trace::h8ff8ed9a2997adee
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5e9ca278b5d2 - std::backtrace_rs::backtrace::trace_unsynchronized::hed1a09eb7aa4d69d
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5e9ca278b5d2 - std::sys::backtrace::_print_fmt::h9e4137979f16bff6
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5e9ca278b5d2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h39198dc7b88a6264
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5e9ca279b70f - core::fmt::rt::Argument::fmt::ha35577891ca60f27
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5e9ca279b70f - core::fmt::write::h1feffd9edbf28871
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x5e9ca275c763 - std::io::default_write_fmt::h347712ff49bfbf12
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5e9ca275c763 - std::io::Write::write_fmt::hd27a6921afe7d834
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5e9ca2766e22 - std::sys::backtrace::BacktraceLock::print::h961c13e46d2559db
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5e9ca276967c - std::panicking::default_hook::{{closure}}::h9e26b7a9f26ef0f4
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x5e9ca27694d6 - std::panicking::default_hook::h7822050d3461aa91
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x5e9ca2769c55 - std::panicking::panic_with_hook::he8a7473937e4114e
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x5e9ca2769aea - std::panicking::panic_handler::{{closure}}::h66b2f3d5eca25e0f
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x5e9ca2766f69 - std::sys::backtrace::__rust_end_short_backtrace::haba2f568b7898700
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5e9ca2750a1d - __rustc[716419831ecda59c]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x5e9ca279f160 - core::panicking::panic_fmt::h3666742ec1d80fc9
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5e9ca270b0db - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h84fe49cf9bc26162
[INFO] [stderr]     17:     0x5e9ca270f879 - core::option::Option<T>::unwrap_or_else::hf33b0468745652e7
[INFO] [stderr]     18:     0x5e9ca270b05c - build_script_build::cmd_finder::CommandFinder::must_have::h682da757ec45989d
[INFO] [stderr]     19:     0x5e9ca270dd25 - build_script_build::main::hf9e8a0b1af1a7406
[INFO] [stderr]     20:     0x5e9ca270ec53 - core::ops::function::FnOnce::call_once::hc20babf08d65cfd8
[INFO] [stderr]     21:     0x5e9ca270e846 - std::sys::backtrace::__rust_begin_short_backtrace::ha8cc29c9f1d23d8e
[INFO] [stderr]     22:     0x5e9ca270e7c9 - std::rt::lang_start::{{closure}}::hbb2f4b546094fa4f
[INFO] [stderr]     23:     0x5e9ca275dea0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h3fc3eb98af770074
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x5e9ca275dea0 - std::panicking::catch_unwind::do_call::hf212a2d02687e140
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/panicking.rs:590:40
[INFO] [stderr]     25:     0x5e9ca275dea0 - std::panicking::catch_unwind::h69acb780f4fb28f3
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/panicking.rs:553:19
[INFO] [stderr]     26:     0x5e9ca275dea0 - std::panic::catch_unwind::hba49dfb5f7e9d25f
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x5e9ca275dea0 - std::rt::lang_start_internal::{{closure}}::h07b7f108d3d4f8c5
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x5e9ca275dea0 - std::panicking::catch_unwind::do_call::h1bbac4c6c846794c
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/panicking.rs:590:40
[INFO] [stderr]     29:     0x5e9ca275dea0 - std::panicking::catch_unwind::ha09f309240d1a0bb
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/panicking.rs:553:19
[INFO] [stderr]     30:     0x5e9ca275dea0 - std::panic::catch_unwind::hda124fd3418f6d1e
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x5e9ca275dea0 - std::rt::lang_start_internal::hfe7899fc6459cca4
[INFO] [stderr]                                  at /rustc/ab1d2444533d829e2d5cff6634cd3c70de6d7103/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x5e9ca270e7b1 - std::rt::lang_start::h1f43b138259ceb0e
[INFO] [stderr]     33:     0x5e9ca2711175 - main
[INFO] [stderr]     34:     0x74d86860b1ca - <unknown>
[INFO] [stderr]     35:     0x74d86860b28b - __libc_start_main
[INFO] [stderr]     36:     0x5e9ca270a175 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e7439f548b96998f0e96dcc550de8cda66692d3a2e312a2821b812b3d08e779f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7439f548b96998f0e96dcc550de8cda66692d3a2e312a2821b812b3d08e779f", kill_on_drop: false }`
[INFO] [stdout] e7439f548b96998f0e96dcc550de8cda66692d3a2e312a2821b812b3d08e779f
