[INFO] cloning repository https://github.com/SaurabhTotey/Cube
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SaurabhTotey/Cube" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaurabhTotey%2FCube", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaurabhTotey%2FCube'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a08e120aec69a25f29de41a4b521d6981ae034b1
[INFO] checking SaurabhTotey/Cube/a08e120aec69a25f29de41a4b521d6981ae034b1 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaurabhTotey%2FCube" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SaurabhTotey/Cube on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SaurabhTotey/Cube
[INFO] finished tweaking git repo https://github.com/SaurabhTotey/Cube
[INFO] tweaked toml for git repo https://github.com/SaurabhTotey/Cube written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SaurabhTotey/Cube 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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vulkano-win v0.19.0
[INFO] [stderr]   Downloaded shaderc v0.6.2
[INFO] [stderr]   Downloaded vk-sys v0.5.2
[INFO] [stderr]   Downloaded cmake v0.1.44
[INFO] [stderr]   Downloaded vulkano-shaders v0.19.0
[INFO] [stderr]   Downloaded half v1.6.0
[INFO] [stderr]   Downloaded cgmath v0.17.0
[INFO] [stderr]   Downloaded libloading v0.6.3
[INFO] [stderr]   Downloaded vulkano v0.19.0
[INFO] [stderr]   Downloaded shaderc-sys v0.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1db06b47e67d58e32f865afb2148303297c591f8431b2b75c287d3bbd68d670c
[INFO] running `Command { std: "docker" "start" "-a" "1db06b47e67d58e32f865afb2148303297c591f8431b2b75c287d3bbd68d670c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1db06b47e67d58e32f865afb2148303297c591f8431b2b75c287d3bbd68d670c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1db06b47e67d58e32f865afb2148303297c591f8431b2b75c287d3bbd68d670c", kill_on_drop: false }`
[INFO] [stdout] 1db06b47e67d58e32f865afb2148303297c591f8431b2b75c287d3bbd68d670c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6949eeba89a135df6df6cc9a4a91699bae8913a2366e315f7b564d2e38394b2d
[INFO] running `Command { std: "docker" "start" "-a" "6949eeba89a135df6df6cc9a4a91699bae8913a2366e315f7b564d2e38394b2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling shaderc-sys v0.6.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking adler32 v1.2.0
[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-064377084d2a50dc/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-0.6.2/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:     0x5cb358b1e77a - std::backtrace_rs::backtrace::libunwind::trace::h4a182ed5026c4960
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]      1:     0x5cb358b1e77a - std::backtrace_rs::backtrace::trace_unsynchronized::hd36eaf0d0af663ac
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5cb358b1e77a - std::sys::backtrace::_print_fmt::h5bc686de8bf76aa3
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5cb358b1e77a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hd8bd9250b5d34cf2
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5cb358b41e43 - core::fmt::rt::Argument::fmt::h479db8f948910918
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]      5:     0x5cb358b41e43 - core::fmt::write::h8ea7001525e04e92
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/fmt/mod.rs:1189:21
[INFO] [stderr]      6:     0x5cb358b1aec3 - std::io::Write::write_fmt::h9a3a3a90a20c720b
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/io/mod.rs:1884:15
[INFO] [stderr]      7:     0x5cb358b1e5c2 - std::sys::backtrace::BacktraceLock::print::h524f4afae71bff25
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x5cb358b1f7bc - std::panicking::default_hook::{{closure}}::hbf0efdb45c0ec2fa
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:268:22
[INFO] [stderr]      9:     0x5cb358b1f602 - std::panicking::default_hook::hd8655fd75a36fb4e
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:295:9
[INFO] [stderr]     10:     0x5cb358b1fdb7 - std::panicking::rust_panic_with_hook::hfd3e39fd18e5a522
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:801:13
[INFO] [stderr]     11:     0x5cb358b1fc4a - std::panicking::begin_panic_handler::{{closure}}::h541106c2fc98c78e
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:674:13
[INFO] [stderr]     12:     0x5cb358b1ec59 - std::sys::backtrace::__rust_end_short_backtrace::hd41b812be983a407
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/sys/backtrace.rs:170:18
[INFO] [stderr]     13:     0x5cb358b1f8dc - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:665:5
[INFO] [stderr]     14:     0x5cb358b40c90 - core::panicking::panic_fmt::h6d97ef49812eecdc
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/panicking.rs:76:14
[INFO] [stderr]     15:     0x5cb358aaeb83 - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::hfe76cbc5667dfee1
[INFO] [stderr]     16:     0x5cb358aac383 - core::option::Option<T>::unwrap_or_else::h44c6d384e3aa8ab0
[INFO] [stderr]     17:     0x5cb358aaeaec - build_script_build::cmd_finder::CommandFinder::must_have::hae47f93ca9f46134
[INFO] [stderr]     18:     0x5cb358ab1827 - build_script_build::main::h33dc80375342f6d1
[INFO] [stderr]     19:     0x5cb358aabb33 - core::ops::function::FnOnce::call_once::h388b127b657fcc38
[INFO] [stderr]     20:     0x5cb358aab4e6 - std::sys::backtrace::__rust_begin_short_backtrace::h5bd4a2f8a3be07cd
[INFO] [stderr]     21:     0x5cb358aab449 - std::rt::lang_start::{{closure}}::hbcf86c5afdbeb499
[INFO] [stderr]     22:     0x5cb358b17517 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h85d3b6433c6201ad
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     23:     0x5cb358b17517 - std::panicking::try::do_call::h1e58a303c26811b2
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:557:40
[INFO] [stderr]     24:     0x5cb358b17517 - std::panicking::try::hf884ee642c4250a3
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:520:19
[INFO] [stderr]     25:     0x5cb358b17517 - std::panic::catch_unwind::h16d69298af9a3692
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panic.rs:358:14
[INFO] [stderr]     26:     0x5cb358b17517 - std::rt::lang_start_internal::{{closure}}::h5a8a6f94cdf753a6
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/rt.rs:174:48
[INFO] [stderr]     27:     0x5cb358b17517 - std::panicking::try::do_call::hf6ee2fe994f58e18
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:557:40
[INFO] [stderr]     28:     0x5cb358b17517 - std::panicking::try::hc1282bf2eeca2940
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:520:19
[INFO] [stderr]     29:     0x5cb358b17517 - std::panic::catch_unwind::h212572842a792e2c
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panic.rs:358:14
[INFO] [stderr]     30:     0x5cb358b17517 - std::rt::lang_start_internal::h9681d29d05b11740
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/rt.rs:174:20
[INFO] [stderr]     31:     0x5cb358aab427 - std::rt::lang_start::h9931b1e0d00366d7
[INFO] [stderr]     32:     0x5cb358ab21d5 - main
[INFO] [stderr]     33:     0x736a85927d90 - <unknown>
[INFO] [stderr]     34:     0x736a85927e40 - __libc_start_main
[INFO] [stderr]     35:     0x5cb358aaacd5 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6949eeba89a135df6df6cc9a4a91699bae8913a2366e315f7b564d2e38394b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6949eeba89a135df6df6cc9a4a91699bae8913a2366e315f7b564d2e38394b2d", kill_on_drop: false }`
[INFO] [stdout] 6949eeba89a135df6df6cc9a4a91699bae8913a2366e315f7b564d2e38394b2d