[INFO] fetching crate megafb 0.0.1...
[INFO] checking megafb-0.0.1 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate megafb 0.0.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate megafb 0.0.1 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate megafb 0.0.1
[INFO] finished tweaking crates.io crate megafb 0.0.1
[INFO] tweaked toml for crates.io crate megafb 0.0.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate megafb 0.0.1 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" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cmake v0.1.40
[INFO] [stderr]   Downloaded gfx-backend-vulkan v0.2.3
[INFO] [stderr]   Downloaded wayland-sys v0.23.5
[INFO] [stderr]   Downloaded wayland-scanner v0.23.5
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.48
[INFO] [stderr]   Downloaded objc_exception v0.1.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.48
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.48
[INFO] [stderr]   Downloaded bumpalo v2.5.0
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.48
[INFO] [stderr]   Downloaded storage-map v0.1.2
[INFO] [stderr]   Downloaded wayland-commons v0.23.5
[INFO] [stderr]   Downloaded shaderc v0.6.0
[INFO] [stderr]   Downloaded winit v0.20.0-alpha2
[INFO] [stderr]   Downloaded metal v0.15.0
[INFO] [stderr]   Downloaded js-sys v0.3.25
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.6.3
[INFO] [stderr]   Downloaded wayland-client v0.23.5
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.48
[INFO] [stderr]   Downloaded wayland-protocols v0.23.5
[INFO] [stderr]   Downloaded shaderc-sys v0.6.0
[INFO] [stderr]   Downloaded d3d12 v0.1.0
[INFO] [stderr]   Downloaded spirv_cross v0.12.1
[INFO] [stderr]   Downloaded gfx-backend-metal v0.2.3
[INFO] [stderr]   Downloaded gfx-backend-dx12 v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20ef64f611e25009698525355baf6e5ca37ba42afe8777ce69a1af6492656370
[INFO] running `Command { std: "docker" "start" "-a" "20ef64f611e25009698525355baf6e5ca37ba42afe8777ce69a1af6492656370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20ef64f611e25009698525355baf6e5ca37ba42afe8777ce69a1af6492656370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20ef64f611e25009698525355baf6e5ca37ba42afe8777ce69a1af6492656370", kill_on_drop: false }`
[INFO] [stdout] 20ef64f611e25009698525355baf6e5ca37ba42afe8777ce69a1af6492656370
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a328ea96dba33c52a7a72d580fbd6f169cc54ec2cb63941c255d7d66acfbac6a
[INFO] running `Command { std: "docker" "start" "-a" "a328ea96dba33c52a7a72d580fbd6f169cc54ec2cb63941c255d7d66acfbac6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling wayland-scanner v0.23.5
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.23.5
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking rusttype v0.7.7
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]    Compiling shaderc-sys v0.6.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling wayland-client v0.23.5
[INFO] [stderr]    Compiling wayland-protocols v0.23.5
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking backtrace v0.3.33
[INFO] [stderr]     Checking lock_api v0.2.0
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: Pre-built library not found.  Falling back to from-source build
[INFO] [stderr] 
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.6.0`
[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-b26fced32176868e/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]   thread 'main' panicked at '
[INFO] [stderr] 
[INFO] [stderr]   couldn't find required command: "python"
[INFO] [stderr] 
[INFO] [stderr]   ', /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/shaderc-sys-0.6.0/build/cmd_finder.rs:45:13
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55ac1628ad01 - std::backtrace_rs::backtrace::libunwind::trace::h036e87df56fc4b9d
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x55ac1628ad01 - std::backtrace_rs::backtrace::trace_unsynchronized::hd61eb2dbd6ae476a
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55ac1628ad01 - std::sys_common::backtrace::_print_fmt::h00c50d0875db23c9
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stderr]      3:     0x55ac1628ad01 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h63195ab2dde77ccc
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x55ac162ac86f - core::fmt::rt::Argument::fmt::h83f4110348c688f4
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/core/src/fmt/rt.rs:138:9
[INFO] [stderr]      5:     0x55ac162ac86f - core::fmt::write::h509367dd365f983a
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/core/src/fmt/mod.rs:1094:21
[INFO] [stderr]      6:     0x55ac16287dc1 - std::io::Write::write_fmt::h8e60bfebdaabfee5
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/io/mod.rs:1713:15
[INFO] [stderr]      7:     0x55ac1628ab15 - std::sys_common::backtrace::_print::h96e550016098cde6
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55ac1628ab15 - std::sys_common::backtrace::print::h7a049611b153a02e
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55ac1628c0c7 - std::panicking::default_hook::{{closure}}::h1b023d46676794c4
[INFO] [stderr]     10:     0x55ac1628beb4 - std::panicking::default_hook::hea2961dabcf68e83
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/panicking.rs:288:9
[INFO] [stderr]     11:     0x55ac1628c57c - std::panicking::rust_panic_with_hook::h4285c91a8168b001
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/panicking.rs:705:13
[INFO] [stderr]     12:     0x55ac1628c477 - std::panicking::begin_panic_handler::{{closure}}::h6ebd0d46f0c6b010
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/panicking.rs:597:13
[INFO] [stderr]     13:     0x55ac1628b136 - std::sys_common::backtrace::__rust_end_short_backtrace::h92042d128576b63a
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/sys_common/backtrace.rs:151:18
[INFO] [stderr]     14:     0x55ac1628c1c2 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/panicking.rs:593:5
[INFO] [stderr]     15:     0x55ac16225623 - core::panicking::panic_fmt::h65404fc8061ee73a
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/core/src/panicking.rs:67:14
[INFO] [stderr]     16:     0x55ac1622c1b6 - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h2dab679364bce6ee
[INFO] [stderr]     17:     0x55ac16229b49 - core::option::Option<T>::unwrap_or_else::hf7e27e84b9b07b2e
[INFO] [stderr]     18:     0x55ac1622c123 - build_script_build::cmd_finder::CommandFinder::must_have::h1c6dca50acc5205f
[INFO] [stderr]     19:     0x55ac16229078 - build_script_build::main::h07587e50d1162747
[INFO] [stderr]     20:     0x55ac16229cf3 - core::ops::function::FnOnce::call_once::h10df5decd85ad911
[INFO] [stderr]     21:     0x55ac1622a5a6 - std::sys_common::backtrace::__rust_begin_short_backtrace::hd885dbc26e5fe893
[INFO] [stderr]     22:     0x55ac1622a279 - std::rt::lang_start::{{closure}}::hf8ed30a8936f450d
[INFO] [stderr]     23:     0x55ac16283f45 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h49ef85a8a8d45198
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     24:     0x55ac16283f45 - std::panicking::try::do_call::ha1def14af693a135
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/panicking.rs:500:40
[INFO] [stderr]     25:     0x55ac16283f45 - std::panicking::try::haa3dc2a1139932e2
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/panicking.rs:464:19
[INFO] [stderr]     26:     0x55ac16283f45 - std::panic::catch_unwind::h9d9cbebaf9f15c67
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/panic.rs:142:14
[INFO] [stderr]     27:     0x55ac16283f45 - std::rt::lang_start_internal::{{closure}}::hf660a772669a69cc
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/rt.rs:148:48
[INFO] [stderr]     28:     0x55ac16283f45 - std::panicking::try::do_call::hb1c34715bb9b1c46
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/panicking.rs:500:40
[INFO] [stderr]     29:     0x55ac16283f45 - std::panicking::try::h499866fd990da8f1
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/panicking.rs:464:19
[INFO] [stderr]     30:     0x55ac16283f45 - std::panic::catch_unwind::hac1ffec55b72e7bc
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/panic.rs:142:14
[INFO] [stderr]     31:     0x55ac16283f45 - std::rt::lang_start_internal::h0fecf91cd579e7b6
[INFO] [stderr]                                  at /rustc/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/library/std/src/rt.rs:148:20
[INFO] [stderr]     32:     0x55ac1622a257 - std::rt::lang_start::hae2562702821a58f
[INFO] [stderr]     33:     0x55ac162297e5 - main
[INFO] [stderr]     34:     0x7f6712d90d90 - <unknown>
[INFO] [stderr]     35:     0x7f6712d90e40 - __libc_start_main
[INFO] [stderr]     36:     0x55ac16225c85 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a328ea96dba33c52a7a72d580fbd6f169cc54ec2cb63941c255d7d66acfbac6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a328ea96dba33c52a7a72d580fbd6f169cc54ec2cb63941c255d7d66acfbac6a", kill_on_drop: false }`
[INFO] [stdout] a328ea96dba33c52a7a72d580fbd6f169cc54ec2cb63941c255d7d66acfbac6a
