[INFO] cloning repository https://github.com/Chrizzsh/bezier-curve
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Chrizzsh/bezier-curve" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrizzsh%2Fbezier-curve", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrizzsh%2Fbezier-curve'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f81fa6fa8e1fc21f77f0c49a597d68a2aa052ac0
[INFO] building Chrizzsh/bezier-curve against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrizzsh%2Fbezier-curve" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Chrizzsh/bezier-curve on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Chrizzsh/bezier-curve
[INFO] finished tweaking git repo https://github.com/Chrizzsh/bezier-curve
[INFO] tweaked toml for git repo https://github.com/Chrizzsh/bezier-curve written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Chrizzsh/bezier-curve 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derivative v2.1.3
[INFO] [stderr]   Downloaded itertools-num v0.1.3
[INFO] [stderr]   Downloaded smallvec v1.6.0
[INFO] [stderr]   Downloaded cmake v0.1.45
[INFO] [stderr]   Downloaded bytemuck_derive v1.0.1
[INFO] [stderr]   Downloaded anyhow v1.0.37
[INFO] [stderr]   Downloaded syn v1.0.57
[INFO] [stderr]   Downloaded shaderc v0.6.3
[INFO] [stderr]   Downloaded const_fn v0.4.4
[INFO] [stderr]   Downloaded memoffset v0.6.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.1
[INFO] [stderr]   Downloaded weezl v0.1.3
[INFO] [stderr]   Downloaded image v0.23.12
[INFO] [stderr]   Downloaded shaderc-sys v0.6.3
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c6411288f073900f09ee7b95450444d696a39c08433b3131bcefd40f766aded
[INFO] running `Command { std: "docker" "start" "-a" "6c6411288f073900f09ee7b95450444d696a39c08433b3131bcefd40f766aded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c6411288f073900f09ee7b95450444d696a39c08433b3131bcefd40f766aded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c6411288f073900f09ee7b95450444d696a39c08433b3131bcefd40f766aded", kill_on_drop: false }`
[INFO] [stdout] 6c6411288f073900f09ee7b95450444d696a39c08433b3131bcefd40f766aded
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d5e372126b7c02d0018265143d346d58cb1a95e8c1f4fda72061e2f789e1014
[INFO] running `Command { std: "docker" "start" "-a" "9d5e372126b7c02d0018265143d346d58cb1a95e8c1f4fda72061e2f789e1014", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling libloading v0.6.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling smallvec v1.6.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling wayland-sys v0.23.6
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling gfx-hal v0.6.0
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling spirv_headers v1.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling ash v0.31.0
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling weezl v0.1.3
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling inplace_it v0.3.2
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]    Compiling pin-project-lite v0.2.0
[INFO] [stderr]    Compiling shaderc-sys v0.6.3
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr] warning: shaderc-sys@0.6.3: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: shaderc-sys@0.6.3: System installed library not found.  Falling back to build from source
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.6.3`
[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-a0cf073fc6c5f57b/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' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-sys-0.6.3/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:     0x5b6ba718fc7a - std::backtrace_rs::backtrace::libunwind::trace::h65cc9476dea42f04
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]      1:     0x5b6ba718fc7a - std::backtrace_rs::backtrace::trace_unsynchronized::h31307b22853da5cb
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5b6ba718fc7a - std::sys::backtrace::_print_fmt::h1d1ec741e9afb97a
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5b6ba718fc7a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::he389a1126db3ba75
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5b6ba71b4433 - core::fmt::rt::Argument::fmt::h0df11dc86b5adf75
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]      5:     0x5b6ba71b4433 - core::fmt::write::hb735a44de60d4775
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/core/src/fmt/mod.rs:1440:21
[INFO] [stderr]      6:     0x5b6ba718c163 - std::io::Write::write_fmt::h7e55554e3b601464
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/io/mod.rs:1887:15
[INFO] [stderr]      7:     0x5b6ba718fac2 - std::sys::backtrace::BacktraceLock::print::h1b2403acafb4a9ce
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x5b6ba7190d60 - std::panicking::default_hook::{{closure}}::h1331b39f8c22272c
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/panicking.rs:295:22
[INFO] [stderr]      9:     0x5b6ba7190b40 - std::panicking::default_hook::h412b1b8b79d13729
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/panicking.rs:322:9
[INFO] [stderr]     10:     0x5b6ba7191542 - std::panicking::rust_panic_with_hook::he422ff96d7e46154
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/panicking.rs:828:13
[INFO] [stderr]     11:     0x5b6ba71912ca - std::panicking::begin_panic_handler::{{closure}}::h48ed6f472c90914b
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/panicking.rs:701:13
[INFO] [stderr]     12:     0x5b6ba7190179 - std::sys::backtrace::__rust_end_short_backtrace::hb3ec7f756cf60e78
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     13:     0x5b6ba7190f5d - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/panicking.rs:692:5
[INFO] [stderr]     14:     0x5b6ba71b32a0 - core::panicking::panic_fmt::h14762d721bf3d8f4
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/core/src/panicking.rs:75:14
[INFO] [stderr]     15:     0x5b6ba7115f1c - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h256cd41d22575d92
[INFO] [stderr]     16:     0x5b6ba7113293 - core::option::Option<T>::unwrap_or_else::hecbbea90b87cb940
[INFO] [stderr]     17:     0x5b6ba7115e9c - build_script_build::cmd_finder::CommandFinder::must_have::h20fa27ff6ddd9a48
[INFO] [stderr]     18:     0x5b6ba7119769 - build_script_build::main::hc5bb6ad97b87294c
[INFO] [stderr]     19:     0x5b6ba7112873 - core::ops::function::FnOnce::call_once::h307423159c9e2e32
[INFO] [stderr]     20:     0x5b6ba7111e86 - std::sys::backtrace::__rust_begin_short_backtrace::h3e1b212daead03f1
[INFO] [stderr]     21:     0x5b6ba7111e09 - std::rt::lang_start::{{closure}}::h9bc0ac5257da951b
[INFO] [stderr]     22:     0x5b6ba7187907 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::he65d3dc22beac451
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     23:     0x5b6ba7187907 - std::panicking::try::do_call::h06981c1fa5ca7e3e
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/panicking.rs:584:40
[INFO] [stderr]     24:     0x5b6ba7187907 - std::panicking::try::h69dc3282503f57f9
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/panicking.rs:547:19
[INFO] [stderr]     25:     0x5b6ba7187907 - std::panic::catch_unwind::h92970ef9ef5c92ae
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/panic.rs:358:14
[INFO] [stderr]     26:     0x5b6ba7187907 - std::rt::lang_start_internal::{{closure}}::h1b78dd850ae1293d
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/rt.rs:174:48
[INFO] [stderr]     27:     0x5b6ba7187907 - std::panicking::try::do_call::h027346d9b0cbd7c7
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/panicking.rs:584:40
[INFO] [stderr]     28:     0x5b6ba7187907 - std::panicking::try::h91dc055514206193
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/panicking.rs:547:19
[INFO] [stderr]     29:     0x5b6ba7187907 - std::panic::catch_unwind::ha551d86c182ebce0
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/panic.rs:358:14
[INFO] [stderr]     30:     0x5b6ba7187907 - std::rt::lang_start_internal::h19b9f2ab21592fb1
[INFO] [stderr]                                  at /rustc/ad211ced81509462cdfe4c29ed10f97279a0acae/library/std/src/rt.rs:174:20
[INFO] [stderr]     31:     0x5b6ba7111de7 - std::rt::lang_start::h93aec39dc40036c8
[INFO] [stderr]     32:     0x5b6ba711a145 - main
[INFO] [stderr]     33:     0x750856ceed90 - <unknown>
[INFO] [stderr]     34:     0x750856ceee40 - __libc_start_main
[INFO] [stderr]     35:     0x5b6ba7111455 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9d5e372126b7c02d0018265143d346d58cb1a95e8c1f4fda72061e2f789e1014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d5e372126b7c02d0018265143d346d58cb1a95e8c1f4fda72061e2f789e1014", kill_on_drop: false }`
[INFO] [stdout] 9d5e372126b7c02d0018265143d346d58cb1a95e8c1f4fda72061e2f789e1014
