[INFO] cloning repository https://github.com/Kneelawk/compute_error_example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kneelawk/compute_error_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKneelawk%2Fcompute_error_example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKneelawk%2Fcompute_error_example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 89933cd7bb38d9751ab54c81b8c2811ba8c3b12a [INFO] checking Kneelawk/compute_error_example against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKneelawk%2Fcompute_error_example" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Kneelawk/compute_error_example on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Kneelawk/compute_error_example [INFO] finished tweaking git repo https://github.com/Kneelawk/compute_error_example [INFO] tweaked toml for git repo https://github.com/Kneelawk/compute_error_example written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Kneelawk/compute_error_example 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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded shaderc v0.6.1 [INFO] [stderr] Downloaded crossbeam-queue v0.2.0 [INFO] [stderr] Downloaded crossbeam-channel v0.4.0 [INFO] [stderr] Downloaded cc v1.0.47 [INFO] [stderr] Downloaded half v1.4.0 [INFO] [stderr] Downloaded syn v1.0.9 [INFO] [stderr] Downloaded shaderc-sys v0.6.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 790ddebc203ebc3fedf181261b2edbf795d0bec3e5730fb9d92ba9c81a25b035 [INFO] running `Command { std: "docker" "start" "-a" "790ddebc203ebc3fedf181261b2edbf795d0bec3e5730fb9d92ba9c81a25b035", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "790ddebc203ebc3fedf181261b2edbf795d0bec3e5730fb9d92ba9c81a25b035", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "790ddebc203ebc3fedf181261b2edbf795d0bec3e5730fb9d92ba9c81a25b035", kill_on_drop: false }` [INFO] [stdout] 790ddebc203ebc3fedf181261b2edbf795d0bec3e5730fb9d92ba9c81a25b035 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b2565eb66b6679f387a33c322148a3db789bea4cf3a28ab23a390bdad5b35dbd [INFO] running `Command { std: "docker" "start" "-a" "b2565eb66b6679f387a33c322148a3db789bea4cf3a28ab23a390bdad5b35dbd", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling cc v1.0.47 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Compiling syn v1.0.9 [INFO] [stderr] Compiling vulkano v0.16.0 (https://github.com/vulkano-rs/vulkano?rev=b0fb255c02eca58fb9b9b709e721bd89f8281ef4#b0fb255c) [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking half v1.4.0 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Compiling crossbeam-epoch v0.8.0 [INFO] [stderr] Checking vk-sys v0.5.0 (https://github.com/vulkano-rs/vulkano?rev=b0fb255c02eca58fb9b9b709e721bd89f8281ef4#b0fb255c) [INFO] [stderr] Compiling cmake v0.1.42 [INFO] [stderr] Checking crossbeam-queue v0.2.0 [INFO] [stderr] Checking crossbeam-channel v0.4.0 [INFO] [stderr] Compiling shaderc-sys v0.6.1 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking crossbeam-deque v0.7.2 [INFO] [stderr] Checking shared_library v0.1.9 [INFO] [stderr] warning: shaderc-sys@0.6.1: Checking for system installed libraries. Use --features = build-from-source to disable this behavior [INFO] [stderr] warning: shaderc-sys@0.6.1: System installed library not found. Falling back to build from source [INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.6.1` [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-9722e8f602eb7b56/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-0.6.1/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: 0x5d082e13a5d2 - std::backtrace_rs::backtrace::libunwind::trace::hfa06e9f63bf0a83a [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stderr] 1: 0x5d082e13a5d2 - std::backtrace_rs::backtrace::trace_unsynchronized::h70efc93666558e57 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stderr] 2: 0x5d082e13a5d2 - std::sys::backtrace::_print_fmt::hc7b2a59e4b7c6f59 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/sys/backtrace.rs:66:9 [INFO] [stderr] 3: 0x5d082e13a5d2 - ::fmt::hb6c331e4a1aab9b4 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/sys/backtrace.rs:39:26 [INFO] [stderr] 4: 0x5d082e15cfb3 - core::fmt::rt::Argument::fmt::h94ac5387a38069f9 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/core/src/fmt/rt.rs:173:76 [INFO] [stderr] 5: 0x5d082e15cfb3 - core::fmt::write::hd781ad4357bb296d [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/core/src/fmt/mod.rs:1460:25 [INFO] [stderr] 6: 0x5d082e1370c3 - std::io::default_write_fmt::h25bf119100aa2ec8 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/io/mod.rs:639:11 [INFO] [stderr] 7: 0x5d082e1370c3 - std::io::Write::write_fmt::h4867718dbbdcf9ee [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/io/mod.rs:1954:13 [INFO] [stderr] 8: 0x5d082e13a422 - std::sys::backtrace::BacktraceLock::print::h5d45eb20eab8a794 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/sys/backtrace.rs:42:9 [INFO] [stderr] 9: 0x5d082e13b802 - std::panicking::default_hook::{{closure}}::h42ad209a87b6868d [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/panicking.rs:300:27 [INFO] [stderr] 10: 0x5d082e13b605 - std::panicking::default_hook::h85049098360665bc [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/panicking.rs:327:9 [INFO] [stderr] 11: 0x5d082e13c1d2 - std::panicking::rust_panic_with_hook::hc302aa8b04d109ba [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/panicking.rs:833:13 [INFO] [stderr] 12: 0x5d082e13bf6a - std::panicking::begin_panic_handler::{{closure}}::h0186f3bc30304ee7 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/panicking.rs:706:13 [INFO] [stderr] 13: 0x5d082e13aac9 - std::sys::backtrace::__rust_end_short_backtrace::h971f2fdfa01904c0 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/sys/backtrace.rs:168:18 [INFO] [stderr] 14: 0x5d082e13bbfd - __rustc[290bc3cf94966f64]::rust_begin_unwind [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/panicking.rs:697:5 [INFO] [stderr] 15: 0x5d082e15bf00 - core::panicking::panic_fmt::h647e7290c4e00148 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/core/src/panicking.rs:75:14 [INFO] [stderr] 16: 0x5d082e0cf8d8 - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h0d18607036fde9f1 [INFO] [stderr] 17: 0x5d082e0cd305 - core::option::Option::unwrap_or_else::h20677f76bea69bee [INFO] [stderr] 18: 0x5d082e0cf85c - build_script_build::cmd_finder::CommandFinder::must_have::he6da2919227d5b66 [INFO] [stderr] 19: 0x5d082e0d216f - build_script_build::main::h90c363fc2c017a6a [INFO] [stderr] 20: 0x5d082e0cc723 - core::ops::function::FnOnce::call_once::hee32b8f1e6de89b6 [INFO] [stderr] 21: 0x5d082e0cc246 - std::sys::backtrace::__rust_begin_short_backtrace::ha39fa08eb9a56d8e [INFO] [stderr] 22: 0x5d082e0cc179 - std::rt::lang_start::{{closure}}::hebc2cc66fcc66c3c [INFO] [stderr] 23: 0x5d082e1330b0 - core::ops::function::impls:: for &F>::call_once::h4d341151e3209f87 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/core/src/ops/function.rs:284:21 [INFO] [stderr] 24: 0x5d082e1330b0 - std::panicking::catch_unwind::do_call::hddece26cc0258a14 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/panicking.rs:589:40 [INFO] [stderr] 25: 0x5d082e1330b0 - std::panicking::catch_unwind::h06771f83dee1e832 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/panicking.rs:552:19 [INFO] [stderr] 26: 0x5d082e1330b0 - std::panic::catch_unwind::h73751a747c85974a [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/panic.rs:359:14 [INFO] [stderr] 27: 0x5d082e1330b0 - std::rt::lang_start_internal::{{closure}}::h7c7316738abb89b8 [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/rt.rs:175:24 [INFO] [stderr] 28: 0x5d082e1330b0 - std::panicking::catch_unwind::do_call::h8b2cec477bbd71ae [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/panicking.rs:589:40 [INFO] [stderr] 29: 0x5d082e1330b0 - std::panicking::catch_unwind::h9145629f1087e3cd [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/panicking.rs:552:19 [INFO] [stderr] 30: 0x5d082e1330b0 - std::panic::catch_unwind::hf2895de5e50d8a3b [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/panic.rs:359:14 [INFO] [stderr] 31: 0x5d082e1330b0 - std::rt::lang_start_internal::h969e9928e3178f3a [INFO] [stderr] at /rustc/8d46be77cd48fdbcced888d027457e2c9cf2aa16/library/std/src/rt.rs:171:5 [INFO] [stderr] 32: 0x5d082e0cc161 - std::rt::lang_start::hf9b98916fb758945 [INFO] [stderr] 33: 0x5d082e0d2af5 - main [INFO] [stderr] 34: 0x7f4cd6ded1ca - [INFO] [stderr] 35: 0x7f4cd6ded28b - __libc_start_main [INFO] [stderr] 36: 0x5d082e0cb945 - _start [INFO] [stderr] 37: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "b2565eb66b6679f387a33c322148a3db789bea4cf3a28ab23a390bdad5b35dbd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b2565eb66b6679f387a33c322148a3db789bea4cf3a28ab23a390bdad5b35dbd", kill_on_drop: false }` [INFO] [stdout] b2565eb66b6679f387a33c322148a3db789bea4cf3a28ab23a390bdad5b35dbd