[INFO] cloning repository https://github.com/cynic64/re-msaa-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cynic64/re-msaa-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcynic64%2Fre-msaa-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcynic64%2Fre-msaa-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1cb40cae08b7c852aeb6393a4f87e9603798cc8
[INFO] checking cynic64/re-msaa-demo against try#1f5783cbeb5da8b38566d718631d016891e9c912 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcynic64%2Fre-msaa-demo" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cynic64/re-msaa-demo on toolchain 1f5783cbeb5da8b38566d718631d016891e9c912
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cynic64/re-msaa-demo
[INFO] finished tweaking git repo https://github.com/cynic64/re-msaa-demo
[INFO] tweaked toml for git repo https://github.com/cynic64/re-msaa-demo written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cynic64/re-msaa-demo 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" "+1f5783cbeb5da8b38566d718631d016891e9c912" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b99402540efc427f44a4c0bd4380bb46d2c8b200df1fa665ff5c208b5ef39ff9
[INFO] running `Command { std: "docker" "start" "-a" "b99402540efc427f44a4c0bd4380bb46d2c8b200df1fa665ff5c208b5ef39ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b99402540efc427f44a4c0bd4380bb46d2c8b200df1fa665ff5c208b5ef39ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b99402540efc427f44a4c0bd4380bb46d2c8b200df1fa665ff5c208b5ef39ff9", kill_on_drop: false }`
[INFO] [stdout] b99402540efc427f44a4c0bd4380bb46d2c8b200df1fa665ff5c208b5ef39ff9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1c9c988ba4e86a44c8b3244796b3d4d80cbdf1a2b36335641d5b0f60c1d00aa
[INFO] running `Command { std: "docker" "start" "-a" "e1c9c988ba4e86a44c8b3244796b3d4d80cbdf1a2b36335641d5b0f60c1d00aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling libloading v0.5.1
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking walkdir v2.2.8
[INFO] [stderr]     Checking rusttype v0.7.7
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]    Compiling shaderc-sys v0.5.0
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr] warning: shaderc-sys@0.5.0: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: shaderc-sys@0.5.0: Pre-built library not found.  Falling back to from-source build
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.5.0`
[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-99fbafd3dc9806e6/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' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-sys-0.5.0/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:     0x595860ae91a2 - std::backtrace_rs::backtrace::libunwind::trace::h13703c35a0185e13
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x595860ae91a2 - std::backtrace_rs::backtrace::trace_unsynchronized::hb00392cc29b7a0f7
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x595860ae91a2 - std::sys::backtrace::_print_fmt::hdeb8e12813f80f50
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x595860ae91a2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hbacb9993e7569e08
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x595860b0bb83 - core::fmt::rt::Argument::fmt::h5cdd79656ba2d737
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x595860b0bb83 - core::fmt::write::h92b3fcba42b5ab23
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/core/src/fmt/mod.rs:1460:25
[INFO] [stderr]      6:     0x595860ae5c93 - std::io::default_write_fmt::hd3891f7631764542
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x595860ae5c93 - std::io::Write::write_fmt::h7fc8441161b7234b
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x595860ae8ff2 - std::sys::backtrace::BacktraceLock::print::hdf4e5cab110a3c38
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x595860aea3d2 - std::panicking::default_hook::{{closure}}::h7e40cc65d4ae1929
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/panicking.rs:300:27
[INFO] [stderr]     10:     0x595860aea1d5 - std::panicking::default_hook::ha49f43405a4b20db
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/panicking.rs:327:9
[INFO] [stderr]     11:     0x595860aeada2 - std::panicking::rust_panic_with_hook::hc1d4228eadab2c83
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/panicking.rs:833:13
[INFO] [stderr]     12:     0x595860aeab3a - std::panicking::begin_panic_handler::{{closure}}::h5fd5af35281ec8ef
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/panicking.rs:706:13
[INFO] [stderr]     13:     0x595860ae96a9 - std::sys::backtrace::__rust_end_short_backtrace::hf73c3f8cb4d2fb91
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     14:     0x595860aea7cd - __rustc[9e15e476495bb9cd]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/panicking.rs:697:5
[INFO] [stderr]     15:     0x595860b0aad0 - core::panicking::panic_fmt::ha7fea8b985f0d96a
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x595860a82a18 - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::hd7d228898d3dec88
[INFO] [stderr]     17:     0x595860a80495 - core::option::Option<T>::unwrap_or_else::h76ba3c4b6d8ab996
[INFO] [stderr]     18:     0x595860a8299c - build_script_build::cmd_finder::CommandFinder::must_have::h2c68d69509882e29
[INFO] [stderr]     19:     0x595860a8494d - build_script_build::main::h594293a0098183f6
[INFO] [stderr]     20:     0x595860a7f783 - core::ops::function::FnOnce::call_once::h00ba29c47a240495
[INFO] [stderr]     21:     0x595860a7f496 - std::sys::backtrace::__rust_begin_short_backtrace::h4d1d97ee9377f1a6
[INFO] [stderr]     22:     0x595860a7f419 - std::rt::lang_start::{{closure}}::hf12a11170f6d026b
[INFO] [stderr]     23:     0x595860ae1c80 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd6db6f3ba73c337b
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/core/src/ops/function.rs:284:21
[INFO] [stderr]     24:     0x595860ae1c80 - std::panicking::catch_unwind::do_call::hfc8bc45746292f50
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/panicking.rs:589:40
[INFO] [stderr]     25:     0x595860ae1c80 - std::panicking::catch_unwind::hb70398c704286b2f
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/panicking.rs:552:19
[INFO] [stderr]     26:     0x595860ae1c80 - std::panic::catch_unwind::hb90e1d13462c3e3b
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x595860ae1c80 - std::rt::lang_start_internal::{{closure}}::hfdbc2eee24b24c5e
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x595860ae1c80 - std::panicking::catch_unwind::do_call::h89fbb899fcf37e5d
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/panicking.rs:589:40
[INFO] [stderr]     29:     0x595860ae1c80 - std::panicking::catch_unwind::h861226c8ec7209d3
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/panicking.rs:552:19
[INFO] [stderr]     30:     0x595860ae1c80 - std::panic::catch_unwind::h82bad1f5910ad0c7
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x595860ae1c80 - std::rt::lang_start_internal::hae50fb685e10cd80
[INFO] [stderr]                                  at /rustc/1f5783cbeb5da8b38566d718631d016891e9c912/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x595860a7f401 - std::rt::lang_start::hf17ba12644b02ffa
[INFO] [stderr]     33:     0x595860a85585 - main
[INFO] [stderr]     34:     0x7f2937f9c1ca - <unknown>
[INFO] [stderr]     35:     0x7f2937f9c28b - __libc_start_main
[INFO] [stderr]     36:     0x595860a7ce05 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e1c9c988ba4e86a44c8b3244796b3d4d80cbdf1a2b36335641d5b0f60c1d00aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1c9c988ba4e86a44c8b3244796b3d4d80cbdf1a2b36335641d5b0f60c1d00aa", kill_on_drop: false }`
[INFO] [stdout] e1c9c988ba4e86a44c8b3244796b3d4d80cbdf1a2b36335641d5b0f60c1d00aa
