[INFO] cloning repository https://github.com/agherzan/mandelbrot-viewer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/agherzan/mandelbrot-viewer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagherzan%2Fmandelbrot-viewer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagherzan%2Fmandelbrot-viewer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 866b0c9eb317bc78acb7a912fbdf911526aef986 [INFO] checking agherzan/mandelbrot-viewer against try#df0acfe6d8f079d1fdd8e6b7447569d81b00f126 for pr-100555 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagherzan%2Fmandelbrot-viewer" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/agherzan/mandelbrot-viewer on toolchain df0acfe6d8f079d1fdd8e6b7447569d81b00f126 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+df0acfe6d8f079d1fdd8e6b7447569d81b00f126" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/agherzan/mandelbrot-viewer [INFO] finished tweaking git repo https://github.com/agherzan/mandelbrot-viewer [INFO] tweaked toml for git repo https://github.com/agherzan/mandelbrot-viewer written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/agherzan/mandelbrot-viewer already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+df0acfe6d8f079d1fdd8e6b7447569d81b00f126" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+df0acfe6d8f079d1fdd8e6b7447569d81b00f126" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e44acfb1f291adfa8db74387c289200b32902b5c95ee3900f5d0bc2b8043a26e [INFO] running `Command { std: "docker" "start" "-a" "e44acfb1f291adfa8db74387c289200b32902b5c95ee3900f5d0bc2b8043a26e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e44acfb1f291adfa8db74387c289200b32902b5c95ee3900f5d0bc2b8043a26e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e44acfb1f291adfa8db74387c289200b32902b5c95ee3900f5d0bc2b8043a26e", kill_on_drop: false }` [INFO] [stdout] e44acfb1f291adfa8db74387c289200b32902b5c95ee3900f5d0bc2b8043a26e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+df0acfe6d8f079d1fdd8e6b7447569d81b00f126" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 668f33a642816ced9d30a87c66ea204b6d7ed276207e8e8311d6eaee35da52cb [INFO] running `Command { std: "docker" "start" "-a" "668f33a642816ced9d30a87c66ea204b6d7ed276207e8e8311d6eaee35da52cb", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.47 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling proc-macro2 v0.4.26 [INFO] [stderr] Compiling rayon-core v1.4.1 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Checking byteorder v1.2.7 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Compiling rayon v1.0.3 [INFO] [stderr] Compiling num-derive v0.2.3 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Checking adler32 v1.0.3 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking color_quant v1.0.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.7.0 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking safe-transmute v0.10.1 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Checking crossbeam-utils v0.6.3 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking inflate v0.4.4 [INFO] [stderr] Checking deflate v0.7.19 [INFO] [stderr] Checking textwrap v0.10.0 [INFO] [stderr] error: failed to run custom build command for `libc v0.2.47` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/libc-1e4f7fba64548b02/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'Failed to get rustc version', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.47/build.rs:10:30 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55b8cf0e2c60 - std::backtrace_rs::backtrace::libunwind::trace::hbcb16d55b8506aa5 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 1: 0x55b8cf0e2c60 - std::backtrace_rs::backtrace::trace_unsynchronized::hf7a4a940fa1f8cb8 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x55b8cf0e2c60 - std::sys_common::backtrace::_print_fmt::h19b6bfb86a540beb [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stderr] 3: 0x55b8cf0e2c60 - ::fmt::h4efbd2ca76dfe43c [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stderr] 4: 0x55b8cf10041e - core::fmt::write::hcf151bde7961613c [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/core/src/fmt/mod.rs:1202:17 [INFO] [stderr] 5: 0x55b8cf0e0015 - std::io::Write::write_fmt::h2918ebef2857dcc1 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/io/mod.rs:1672:15 [INFO] [stderr] 6: 0x55b8cf0e43c3 - std::sys_common::backtrace::_print::h1c807555f929250e [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stderr] 7: 0x55b8cf0e43c3 - std::sys_common::backtrace::print::he7ea6eb92b22658d [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stderr] 8: 0x55b8cf0e43c3 - std::panicking::default_hook::{{closure}}::h8f797a1af3524f7c [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/panicking.rs:295:22 [INFO] [stderr] 9: 0x55b8cf0e40af - std::panicking::default_hook::hbf4c39be1bbb3401 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/panicking.rs:314:9 [INFO] [stderr] 10: 0x55b8cf0e4a6a - std::panicking::rust_panic_with_hook::h4a8efaaadf0befd0 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/panicking.rs:698:17 [INFO] [stderr] 11: 0x55b8cf0e4967 - std::panicking::begin_panic_handler::{{closure}}::h8865961652c93e34 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/panicking.rs:588:13 [INFO] [stderr] 12: 0x55b8cf0e316c - std::sys_common::backtrace::__rust_end_short_backtrace::h7afec31e55a85950 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stderr] 13: 0x55b8cf0e4682 - rust_begin_unwind [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/panicking.rs:584:5 [INFO] [stderr] 14: 0x55b8cf0c09f3 - core::panicking::panic_fmt::he96037b585e1115c [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/core/src/panicking.rs:142:14 [INFO] [stderr] 15: 0x55b8cf0ff5f1 - core::panicking::panic_display::h3b55b9fb77fbd928 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/core/src/panicking.rs:72:5 [INFO] [stderr] 16: 0x55b8cf0ff59b - core::panicking::panic_str::h25e89ae3556f8500 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/core/src/panicking.rs:56:5 [INFO] [stderr] 17: 0x55b8cf0c0866 - core::option::expect_failed::hbc9c38ca36bc796f [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/core/src/option.rs:1874:5 [INFO] [stderr] 18: 0x55b8cf0c505a - core::option::Option::expect::hc8eca6ce75d939f1 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/core/src/option.rs:738:21 [INFO] [stderr] 19: 0x55b8cf0c84c1 - build_script_build::main::h46fae2445665dac3 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.47/build.rs:10:8 [INFO] [stderr] 20: 0x55b8cf0c43fb - core::ops::function::FnOnce::call_once::h0ae241fbcafe3f43 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/core/src/ops/function.rs:248:5 [INFO] [stderr] 21: 0x55b8cf0c3ade - std::sys_common::backtrace::__rust_begin_short_backtrace::h4b1215482f45831f [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stderr] 22: 0x55b8cf0c2ea1 - std::rt::lang_start::{{closure}}::he14bce06e0161c38 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/rt.rs:145:18 [INFO] [stderr] 23: 0x55b8cf0dd6ff - core::ops::function::impls:: for &F>::call_once::h987fd3f116a43cca [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/core/src/ops/function.rs:280:13 [INFO] [stderr] 24: 0x55b8cf0dd6ff - std::panicking::try::do_call::he85eb085216da788 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/panicking.rs:492:40 [INFO] [stderr] 25: 0x55b8cf0dd6ff - std::panicking::try::h25079d941d646086 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/panicking.rs:456:19 [INFO] [stderr] 26: 0x55b8cf0dd6ff - std::panic::catch_unwind::h9c086a3ee7527dfa [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/panic.rs:137:14 [INFO] [stderr] 27: 0x55b8cf0dd6ff - std::rt::lang_start_internal::{{closure}}::haefcd4fd2d1db261 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/rt.rs:128:48 [INFO] [stderr] 28: 0x55b8cf0dd6ff - std::panicking::try::do_call::hd76eb7e433e75818 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/panicking.rs:492:40 [INFO] [stderr] 29: 0x55b8cf0dd6ff - std::panicking::try::h961618ebe7254241 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/panicking.rs:456:19 [INFO] [stderr] 30: 0x55b8cf0dd6ff - std::panic::catch_unwind::h6bd0ce65cff8f49a [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/panic.rs:137:14 [INFO] [stderr] 31: 0x55b8cf0dd6ff - std::rt::lang_start_internal::hc47d5c9a63edda98 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/rt.rs:128:20 [INFO] [stderr] 32: 0x55b8cf0c2e70 - std::rt::lang_start::hde190d9d9b31cfc5 [INFO] [stderr] at /rustc/df0acfe6d8f079d1fdd8e6b7447569d81b00f126/library/std/src/rt.rs:144:17 [INFO] [stderr] 33: 0x55b8cf0c8a0c - main [INFO] [stderr] 34: 0x7f8b3ab4c083 - __libc_start_main [INFO] [stderr] 35: 0x55b8cf0c0bee - _start [INFO] [stderr] 36: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "668f33a642816ced9d30a87c66ea204b6d7ed276207e8e8311d6eaee35da52cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "668f33a642816ced9d30a87c66ea204b6d7ed276207e8e8311d6eaee35da52cb", kill_on_drop: false }` [INFO] [stdout] 668f33a642816ced9d30a87c66ea204b6d7ed276207e8e8311d6eaee35da52cb