[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] checking Chrizzsh/bezier-curve against master#46424fb5054f211ec836c5c03159f92e46bb35ac for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrizzsh%2Fbezier-curve" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Chrizzsh/bezier-curve on toolchain 46424fb5054f211ec836c5c03159f92e46bb35ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "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-7-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" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libloading v0.6.6
[INFO] [stderr]   Downloaded itertools-num v0.1.3
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.1
[INFO] [stderr]   Downloaded gif v0.11.1
[INFO] [stderr]   Downloaded anyhow v1.0.37
[INFO] [stderr]   Downloaded rayon-core v1.9.0
[INFO] [stderr]   Downloaded derivative v2.1.3
[INFO] [stderr]   Downloaded wgpu v0.6.2
[INFO] [stderr]   Downloaded cgmath v0.17.0
[INFO] [stderr]   Downloaded rayon v1.5.0
[INFO] [stderr]   Downloaded memoffset v0.6.1
[INFO] [stderr]   Downloaded image v0.23.12
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.20
[INFO] [stderr]   Downloaded weezl v0.1.3
[INFO] [stderr]   Downloaded gfx-backend-dx11 v0.6.17
[INFO] [stderr]   Downloaded winit v0.22.2
[INFO] [stderr]   Downloaded gfx-backend-metal v0.6.5
[INFO] [stderr]   Downloaded spirv_cross v0.22.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 914309bc6e179df2ca3f879f984c31a75b07d602202b48196813f67f54712b8b
[INFO] running `Command { std: "docker" "start" "-a" "914309bc6e179df2ca3f879f984c31a75b07d602202b48196813f67f54712b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "914309bc6e179df2ca3f879f984c31a75b07d602202b48196813f67f54712b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "914309bc6e179df2ca3f879f984c31a75b07d602202b48196813f67f54712b8b", kill_on_drop: false }`
[INFO] [stdout] 914309bc6e179df2ca3f879f984c31a75b07d602202b48196813f67f54712b8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91c68016064014cc26b6f1b771112639b5632e5499905b3a320ebf946d2cc948
[INFO] running `Command { std: "docker" "start" "-a" "91c68016064014cc26b6f1b771112639b5632e5499905b3a320ebf946d2cc948", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking libloading v0.6.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[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 xml-rs v0.8.3
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking smallvec v1.6.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking gfx-hal v0.6.0
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling shaderc-sys v0.6.3
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking futures-task v0.3.8
[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-072160a84de2c23a/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:     0x61d7234bc912 - std::backtrace_rs::backtrace::libunwind::trace::hfe33f3fca02d9d49
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x61d7234bc912 - std::backtrace_rs::backtrace::trace_unsynchronized::hf8c1336b7abecebc
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x61d7234bc912 - std::sys::backtrace::_print_fmt::h1cc3b7371fcb02ce
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x61d7234bc912 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h3fdbad3682625d65
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x61d7234e11d3 - core::fmt::rt::Argument::fmt::hac739edf89f473e5
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/core/src/fmt/rt.rs:184:76
[INFO] [stderr]      5:     0x61d7234e11d3 - core::fmt::write::h46b3661118fd93d9
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/core/src/fmt/mod.rs:1480:21
[INFO] [stderr]      6:     0x61d7234b94e3 - std::io::default_write_fmt::h07a956b98e0e549f
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x61d7234b94e3 - std::io::Write::write_fmt::hefeac8c5ed2b4ca0
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/io/mod.rs:1914:13
[INFO] [stderr]      8:     0x61d7234bc762 - std::sys::backtrace::BacktraceLock::print::hc92ef2ccd32eaf3d
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x61d7234bdba2 - std::panicking::default_hook::{{closure}}::h26c6ecc533f19c32
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/panicking.rs:300:22
[INFO] [stderr]     10:     0x61d7234bd9a5 - std::panicking::default_hook::he6d1a5a8f8627255
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/panicking.rs:327:9
[INFO] [stderr]     11:     0x61d7234be5c2 - std::panicking::rust_panic_with_hook::hc6a05938888c0a6d
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/panicking.rs:833:13
[INFO] [stderr]     12:     0x61d7234be34a - std::panicking::begin_panic_handler::{{closure}}::hce41832356916883
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/panicking.rs:706:13
[INFO] [stderr]     13:     0x61d7234bce19 - std::sys::backtrace::__rust_end_short_backtrace::h809ad2921436b614
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     14:     0x61d7234bdfdd - __rustc[13f85059a3e01eb3]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/panicking.rs:697:5
[INFO] [stderr]     15:     0x61d7234e0100 - core::panicking::panic_fmt::h7e568a56ffdf448b
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x61d723444558 - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h484b08f782e178bf
[INFO] [stderr]     17:     0x61d723441a75 - core::option::Option<T>::unwrap_or_else::h0bb3acb1844e2053
[INFO] [stderr]     18:     0x61d7234444dc - build_script_build::cmd_finder::CommandFinder::must_have::hd933c5613cfb3908
[INFO] [stderr]     19:     0x61d723447dc4 - build_script_build::main::hb5859a7a6473403d
[INFO] [stderr]     20:     0x61d723440fd3 - core::ops::function::FnOnce::call_once::h7a62f543534c4ba7
[INFO] [stderr]     21:     0x61d7234406a6 - std::sys::backtrace::__rust_begin_short_backtrace::ha0ba8eb0b3a7c647
[INFO] [stderr]     22:     0x61d723440629 - std::rt::lang_start::{{closure}}::hc13ed19798cca743
[INFO] [stderr]     23:     0x61d7234b4620 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h07820d99f666c4f4
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     24:     0x61d7234b4620 - std::panicking::try::do_call::hcb349621034e7d22
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/panicking.rs:589:40
[INFO] [stderr]     25:     0x61d7234b4620 - std::panicking::try::h14d805015e715701
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/panicking.rs:552:19
[INFO] [stderr]     26:     0x61d7234b4620 - std::panic::catch_unwind::he07ff3323b1b1ad4
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x61d7234b4620 - std::rt::lang_start_internal::{{closure}}::he746c4aa7e6c87ae
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/rt.rs:168:24
[INFO] [stderr]     28:     0x61d7234b4620 - std::panicking::try::do_call::h5c36b323e35fe62d
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/panicking.rs:589:40
[INFO] [stderr]     29:     0x61d7234b4620 - std::panicking::try::hb9a2d1353ef314fe
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/panicking.rs:552:19
[INFO] [stderr]     30:     0x61d7234b4620 - std::panic::catch_unwind::he0661a914ab09041
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x61d7234b4620 - std::rt::lang_start_internal::h690c392d3d3c052a
[INFO] [stderr]                                  at /rustc/46424fb5054f211ec836c5c03159f92e46bb35ac/library/std/src/rt.rs:164:5
[INFO] [stderr]     32:     0x61d723440611 - std::rt::lang_start::h2feb9b8bfdc05e11
[INFO] [stderr]     33:     0x61d7234487a5 - main
[INFO] [stderr]     34:     0x7f0811f391ca - <unknown>
[INFO] [stderr]     35:     0x7f0811f3928b - __libc_start_main
[INFO] [stderr]     36:     0x61d72343fc05 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "91c68016064014cc26b6f1b771112639b5632e5499905b3a320ebf946d2cc948", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91c68016064014cc26b6f1b771112639b5632e5499905b3a320ebf946d2cc948", kill_on_drop: false }`
[INFO] [stdout] 91c68016064014cc26b6f1b771112639b5632e5499905b3a320ebf946d2cc948
