[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#78c81ee3917a99dcff6e2e6822800f0492c415c3 for pr-148967
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenSandeen%2Flearning_vulkan" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-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-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BenSandeen/learning_vulkan on toolchain 78c81ee3917a99dcff6e2e6822800f0492c415c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "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" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 045e4a1af969b5f99536a3b3cda74409d2d04d768394efcb86c64f9067789622
[INFO] running `Command { std: "docker" "start" "-a" "045e4a1af969b5f99536a3b3cda74409d2d04d768394efcb86c64f9067789622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "045e4a1af969b5f99536a3b3cda74409d2d04d768394efcb86c64f9067789622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "045e4a1af969b5f99536a3b3cda74409d2d04d768394efcb86c64f9067789622", kill_on_drop: false }`
[INFO] [stdout] 045e4a1af969b5f99536a3b3cda74409d2d04d768394efcb86c64f9067789622
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aabf6b1171f344aca3eb0e6d4bcdadb6d13da12d062783ee4caadf7e3662f822
[INFO] running `Command { std: "docker" "start" "-a" "aabf6b1171f344aca3eb0e6d4bcdadb6d13da12d062783ee4caadf7e3662f822", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling xml-rs v0.8.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[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 num-integer v0.1.42
[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]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling shaderc-sys v0.5.1
[INFO] [stderr]     Checking rusttype v0.8.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking xdg v2.2.0
[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' (766) 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:     0x5a95f10b98a2 - std::backtrace_rs::backtrace::libunwind::trace::hd8a655236e158731
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5a95f10b98a2 - std::backtrace_rs::backtrace::trace_unsynchronized::hc00faf3445433064
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5a95f10b98a2 - std::sys::backtrace::_print_fmt::he752eec0bd9c3ab6
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5a95f10b98a2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hf49d4e9844d08ced
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5a95f10c97e7 - core::fmt::rt::Argument::fmt::hd8fa28b5031a260b
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5a95f10c97e7 - core::fmt::write::he5460f17b833c122
[INFO] [stderr]      6:     0x5a95f108b736 - std::io::default_write_fmt::heccfcb5b5382e279
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5a95f108b736 - std::io::Write::write_fmt::he98ae2746dbedb47
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x5a95f1097db1 - std::sys::backtrace::BacktraceLock::print::hc3760d1122275184
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5a95f1097db1 - std::panicking::default_hook::{{closure}}::hf8c19bc1a7b0676a
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/panicking.rs:293:27
[INFO] [stderr]     10:     0x5a95f1097bd6 - std::panicking::default_hook::haf43ecfd300ae5b5
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/panicking.rs:320:9
[INFO] [stderr]     11:     0x5a95f10982bb - std::panicking::panic_with_hook::h66c5d8fa29e50b62
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/panicking.rs:826:13
[INFO] [stderr]     12:     0x5a95f1098138 - std::panicking::panic_handler::{{closure}}::h1674ae13bdd6a7e1
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/panicking.rs:699:13
[INFO] [stderr]     13:     0x5a95f1095899 - std::sys::backtrace::__rust_end_short_backtrace::h6b28368e603b0548
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5a95f107fbbd - __rustc[e6cc9979c6fc759f]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/panicking.rs:690:5
[INFO] [stderr]     15:     0x5a95f10cce7c - core::panicking::panic_fmt::h2145634be0790f13
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5a95f103e4d6 - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h3267f8cadda4c159
[INFO] [stderr]     17:     0x5a95f1042709 - core::option::Option<T>::unwrap_or_else::hc1e8f9a88f1efe26
[INFO] [stderr]     18:     0x5a95f103e45c - build_script_build::cmd_finder::CommandFinder::must_have::h445ebfb448490f98
[INFO] [stderr]     19:     0x5a95f1040c64 - build_script_build::main::h2b3da476ab23469d
[INFO] [stderr]     20:     0x5a95f1041f23 - core::ops::function::FnOnce::call_once::hee91340b8f1c9bea
[INFO] [stderr]     21:     0x5a95f1041a66 - std::sys::backtrace::__rust_begin_short_backtrace::h42055babb0fe6f77
[INFO] [stderr]     22:     0x5a95f10419e9 - std::rt::lang_start::{{closure}}::hc76866c654ef6d67
[INFO] [stderr]     23:     0x5a95f108cdfa - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hddbf2acf5bfc1fa2
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x5a95f108cdfa - std::panicking::catch_unwind::do_call::h601e682a6f220c31
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/panicking.rs:582:40
[INFO] [stderr]     25:     0x5a95f108cdfa - std::panicking::catch_unwind::h81f8c3b241324d54
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/panicking.rs:545:19
[INFO] [stderr]     26:     0x5a95f108cdfa - std::panic::catch_unwind::h955ecdb4ad78d5d8
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x5a95f108cdfa - std::rt::lang_start_internal::{{closure}}::hdc242c6291100e1a
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x5a95f108cdfa - std::panicking::catch_unwind::do_call::hb4798156ed16c4d5
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/panicking.rs:582:40
[INFO] [stderr]     29:     0x5a95f108cdfa - std::panicking::catch_unwind::hbf7abf54e8488964
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/panicking.rs:545:19
[INFO] [stderr]     30:     0x5a95f108cdfa - std::panic::catch_unwind::h12e2e0b2f3af8206
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x5a95f108cdfa - std::rt::lang_start_internal::hb8ec3851c46937a1
[INFO] [stderr]                                  at /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x5a95f10419d1 - std::rt::lang_start::h3d5ade2b3a4dcb7e
[INFO] [stderr]     33:     0x5a95f1043ec5 - main
[INFO] [stderr]     34:     0x7beca8cd71ca - <unknown>
[INFO] [stderr]     35:     0x7beca8cd728b - __libc_start_main
[INFO] [stderr]     36:     0x5a95f103d575 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "aabf6b1171f344aca3eb0e6d4bcdadb6d13da12d062783ee4caadf7e3662f822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aabf6b1171f344aca3eb0e6d4bcdadb6d13da12d062783ee4caadf7e3662f822", kill_on_drop: false }`
[INFO] [stdout] aabf6b1171f344aca3eb0e6d4bcdadb6d13da12d062783ee4caadf7e3662f822
