[INFO] cloning repository https://github.com/HappyDustbunny/fern [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HappyDustbunny/fern" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHappyDustbunny%2Ffern", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHappyDustbunny%2Ffern'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c1269b509f8759110724eb87fadacd4081d82dae [INFO] checking HappyDustbunny/fern against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHappyDustbunny%2Ffern" "/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/HappyDustbunny/fern on toolchain 506512391b1a75ae450d36c9420978402a91abcc [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/HappyDustbunny/fern [INFO] finished tweaking git repo https://github.com/HappyDustbunny/fern [INFO] tweaked toml for git repo https://github.com/HappyDustbunny/fern written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/HappyDustbunny/fern 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rusttype v0.7.7 [INFO] [stderr] Downloaded downcast-rs v1.0.4 [INFO] [stderr] Downloaded objc v0.2.6 [INFO] [stderr] Downloaded pkg-config v0.3.15 [INFO] [stderr] Downloaded instant v0.1.1 [INFO] [stderr] Downloaded pennereq v0.3.0 [INFO] [stderr] Downloaded schannel v0.1.15 [INFO] [stderr] Downloaded noise v0.5.1 [INFO] [stderr] Downloaded daggy v0.6.0 [INFO] [stderr] Downloaded gif v0.10.2 [INFO] [stderr] Downloaded image v0.21.2 [INFO] [stderr] Downloaded openssl-sys v0.9.48 [INFO] [stderr] Downloaded curl v0.4.22 [INFO] [stderr] Downloaded blake2b_simd v0.5.6 [INFO] [stderr] Downloaded crossbeam v0.5.0 [INFO] [stderr] Downloaded rust-argon2 v0.5.0 [INFO] [stderr] Downloaded rayon-core v1.5.0 [INFO] [stderr] Downloaded rayon v1.1.0 [INFO] [stderr] Downloaded serde_derive v1.0.98 [INFO] [stderr] Downloaded serde v1.0.98 [INFO] [stderr] Downloaded nannou v0.10.0 [INFO] [stderr] Downloaded backtrace v0.3.34 [INFO] [stderr] Downloaded conrod_vulkano v0.66.0 [INFO] [stderr] Downloaded conrod_derive v0.66.0 [INFO] [stderr] Downloaded conrod_core v0.66.0 [INFO] [stderr] Downloaded moltenvk_deps v0.1.8 [INFO] [stderr] Downloaded conrod_winit v0.66.0 [INFO] [stderr] Downloaded curl-sys v0.4.20 [INFO] [stderr] Downloaded pbr v1.0.1 [INFO] [stderr] Downloaded vulkano-win v0.13.0 [INFO] [stderr] Downloaded vulkano v0.13.0 [INFO] [stderr] Downloaded env_perm v0.1.3 [INFO] [stderr] Downloaded vulkano-shaders v0.13.0 [INFO] [stderr] Downloaded objc_exception v0.1.1 [INFO] [stderr] Downloaded getrandom v0.1.8 [INFO] [stderr] Downloaded shaderc-sys v0.5.1 [INFO] [stderr] Downloaded metal v0.13.1 [INFO] [stderr] Downloaded crossbeam v0.7.2 [INFO] [stderr] Downloaded vk-sys v0.4.0 [INFO] [stderr] Downloaded winit v0.19.2 [INFO] [stderr] Downloaded cmake v0.1.41 [INFO] [stderr] Downloaded shaderc v0.5.1 [INFO] [stderr] Downloaded half v1.3.0 [INFO] [stderr] Downloaded cc v1.0.38 [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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c5a954bba2fae555eebff6fe3b77c51329ceccec73c3e3889c840331e276aac1 [INFO] running `Command { std: "docker" "start" "-a" "c5a954bba2fae555eebff6fe3b77c51329ceccec73c3e3889c840331e276aac1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c5a954bba2fae555eebff6fe3b77c51329ceccec73c3e3889c840331e276aac1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5a954bba2fae555eebff6fe3b77c51329ceccec73c3e3889c840331e276aac1", kill_on_drop: false }` [INFO] [stdout] c5a954bba2fae555eebff6fe3b77c51329ceccec73c3e3889c840331e276aac1 [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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5e869d9a584474e851cc32d95264c8f7c96bd625adb14319c4d78dbb4ad0fa69 [INFO] running `Command { std: "docker" "start" "-a" "5e869d9a584474e851cc32d95264c8f7c96bd625adb14319c4d78dbb4ad0fa69", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.5 [INFO] [stderr] Compiling libc v0.2.60 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling cc v1.0.38 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling xml-rs v0.8.0 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Compiling serde v1.0.98 [INFO] [stderr] Checking adler32 v1.0.3 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling rayon-core v1.5.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking linked-hash-map v0.5.2 [INFO] [stderr] Compiling cmake v0.1.41 [INFO] [stderr] Compiling num-rational v0.2.2 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Checking rustc-hash v1.0.1 [INFO] [stderr] Checking stb_truetype v0.2.6 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking num_cpus v1.10.1 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling num-complex v0.2.3 [INFO] [stderr] Compiling wayland-scanner v0.21.13 [INFO] [stderr] Checking fixedbitset v0.1.9 [INFO] [stderr] Checking color_quant v1.0.1 [INFO] [stderr] Checking same-file v1.0.5 [INFO] [stderr] Checking either v1.5.2 [INFO] [stderr] Checking downcast-rs v1.0.4 [INFO] [stderr] Compiling pkg-config v0.3.15 [INFO] [stderr] Compiling libloading v0.5.2 [INFO] [stderr] Compiling shaderc-sys v0.5.1 [INFO] [stderr] Checking walkdir v2.2.9 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking crossbeam-deque v0.6.3 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Checking petgraph v0.4.13 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Checking piston-float v0.3.0 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking approx v0.3.2 [INFO] [stderr] Checking ordered-float v1.0.2 [INFO] [stderr] Checking dlib v0.4.1 [INFO] [stderr] The following warnings were emitted during compilation: [INFO] [stderr] [INFO] [stderr] warning: shaderc-sys@0.5.1: Checking for system installed libraries. Use --features = build-from-source to disable this behavior [INFO] [stderr] warning: shaderc-sys@0.5.1: 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 v0.5.1` [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-c776c3d4cc3e188e/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 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/shaderc-sys-0.5.1/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: 0x5591a79da0e5 - std::backtrace_rs::backtrace::libunwind::trace::h876d7c806a499a4c [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5 [INFO] [stderr] 1: 0x5591a79da0e5 - std::backtrace_rs::backtrace::trace_unsynchronized::h93aa6ac20204363f [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x5591a79da0e5 - std::sys_common::backtrace::_print_fmt::haa4d06348037420c [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stderr] 3: 0x5591a79da0e5 - ::fmt::hb19a1068483db389 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stderr] 4: 0x5591a79fe9eb - core::fmt::rt::Argument::fmt::he1186800a1f8dba1 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/fmt/rt.rs:165:63 [INFO] [stderr] 5: 0x5591a79fe9eb - core::fmt::write::h93b97d526ac83ab7 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/fmt/mod.rs:1169:21 [INFO] [stderr] 6: 0x5591a79d6f7f - std::io::Write::write_fmt::h5b8b8a434bcca5dd [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/io/mod.rs:1835:15 [INFO] [stderr] 7: 0x5591a79d9ebe - std::sys_common::backtrace::_print::h68eb04d9824256f0 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stderr] 8: 0x5591a79d9ebe - std::sys_common::backtrace::print::h9c98f0d9c4306586 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stderr] 9: 0x5591a79db449 - std::panicking::default_hook::{{closure}}::hcf6830dc400daae4 [INFO] [stderr] 10: 0x5591a79db18d - std::panicking::default_hook::h483615856e3a5cc0 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:298:9 [INFO] [stderr] 11: 0x5591a79db953 - std::panicking::rust_panic_with_hook::h36ebc998f351e5fd [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:795:13 [INFO] [stderr] 12: 0x5591a79db834 - std::panicking::begin_panic_handler::{{closure}}::h686207a93492b797 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:664:13 [INFO] [stderr] 13: 0x5591a79da5a9 - std::sys_common::backtrace::__rust_end_short_backtrace::h2e37e6bf5aac538a [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stderr] 14: 0x5591a79db567 - rust_begin_unwind [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:652:5 [INFO] [stderr] 15: 0x5591a79fd773 - core::panicking::panic_fmt::heae5d8e5e3703b89 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/panicking.rs:72:14 [INFO] [stderr] 16: 0x5591a797537a - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h946c8860d52f44b1 [INFO] [stderr] 17: 0x5591a7972b03 - core::option::Option::unwrap_or_else::he18933c340f1251e [INFO] [stderr] 18: 0x5591a79752dc - build_script_build::cmd_finder::CommandFinder::must_have::h5483535571b4ab9d [INFO] [stderr] 19: 0x5591a79778e7 - build_script_build::main::hb1c180ec2de4d5c7 [INFO] [stderr] 20: 0x5591a7972343 - core::ops::function::FnOnce::call_once::hb5cc7c8d73b7b517 [INFO] [stderr] 21: 0x5591a7971526 - std::sys_common::backtrace::__rust_begin_short_backtrace::h9290b0293017bc6c [INFO] [stderr] 22: 0x5591a7971bc9 - std::rt::lang_start::{{closure}}::h07471daf1bc4067c [INFO] [stderr] 23: 0x5591a79d306d - core::ops::function::impls:: for &F>::call_once::h75d0a4fe40296b94 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/ops/function.rs:284:13 [INFO] [stderr] 24: 0x5591a79d306d - std::panicking::try::do_call::ha27ca65264b021a4 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:559:40 [INFO] [stderr] 25: 0x5591a79d306d - std::panicking::try::h901e100a17b3cd54 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:523:19 [INFO] [stderr] 26: 0x5591a79d306d - std::panic::catch_unwind::h13d256f1691dfb07 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panic.rs:149:14 [INFO] [stderr] 27: 0x5591a79d306d - std::rt::lang_start_internal::{{closure}}::hdf5a5a26190e1fd8 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/rt.rs:141:48 [INFO] [stderr] 28: 0x5591a79d306d - std::panicking::try::do_call::h3a8fb98242ec30e5 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:559:40 [INFO] [stderr] 29: 0x5591a79d306d - std::panicking::try::h881801cd3cb8ba77 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panicking.rs:523:19 [INFO] [stderr] 30: 0x5591a79d306d - std::panic::catch_unwind::he14d380083644433 [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/panic.rs:149:14 [INFO] [stderr] 31: 0x5591a79d306d - std::rt::lang_start_internal::hf560e7575b65e65f [INFO] [stderr] at /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/rt.rs:141:20 [INFO] [stderr] 32: 0x5591a7971ba7 - std::rt::lang_start::hee479fccea72fcd5 [INFO] [stderr] 33: 0x5591a7978595 - main [INFO] [stderr] 34: 0x7fda44eafd90 - [INFO] [stderr] 35: 0x7fda44eafe40 - __libc_start_main [INFO] [stderr] 36: 0x5591a7971355 - _start [INFO] [stderr] 37: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "5e869d9a584474e851cc32d95264c8f7c96bd625adb14319c4d78dbb4ad0fa69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e869d9a584474e851cc32d95264c8f7c96bd625adb14319c4d78dbb4ad0fa69", kill_on_drop: false }` [INFO] [stdout] 5e869d9a584474e851cc32d95264c8f7c96bd625adb14319c4d78dbb4ad0fa69