[INFO] cloning repository https://github.com/AlienKevin/music-synthesizer-webview
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlienKevin/music-synthesizer-webview" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlienKevin%2Fmusic-synthesizer-webview", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlienKevin%2Fmusic-synthesizer-webview'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2650bca5fd29781f7e230197ab06b429bf3fe6c
[INFO] checking AlienKevin/music-synthesizer-webview against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlienKevin%2Fmusic-synthesizer-webview" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AlienKevin/music-synthesizer-webview
[INFO] finished tweaking git repo https://github.com/AlienKevin/music-synthesizer-webview
[INFO] tweaked toml for git repo https://github.com/AlienKevin/music-synthesizer-webview written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AlienKevin/music-synthesizer-webview on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AlienKevin/music-synthesizer-webview 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded urlencoding v1.0.0
[INFO] [stderr]   Downloaded boxfnonce v0.1.1
[INFO] [stderr]   Downloaded cc v1.0.50
[INFO] [stderr]   Downloaded webview-sys v0.3.3
[INFO] [stderr]   Downloaded web-view v0.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82fcb971289a2936db909acced1509db318ade4f01b4faddb96851deb921caf1
[INFO] running `Command { std: "docker" "start" "-a" "82fcb971289a2936db909acced1509db318ade4f01b4faddb96851deb921caf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82fcb971289a2936db909acced1509db318ade4f01b4faddb96851deb921caf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82fcb971289a2936db909acced1509db318ade4f01b4faddb96851deb921caf1", kill_on_drop: false }`
[INFO] [stdout] 82fcb971289a2936db909acced1509db318ade4f01b4faddb96851deb921caf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cb4eae6304355a18d563a86814da81470812ac54f9a9ae95c23bf5f6a2ccbf9
[INFO] running `Command { std: "docker" "start" "-a" "4cb4eae6304355a18d563a86814da81470812ac54f9a9ae95c23bf5f6a2ccbf9", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]     Checking urlencoding v1.0.0
[INFO] [stderr]    Compiling webview-sys v0.3.3
[INFO] [stderr] error: failed to run custom build command for `webview-sys v0.3.3`
[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/webview-sys-898f175eeed90487/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (99) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/webview-sys-0.3.3/build.rs:44:14:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Failure { command: "PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=\"1\" PKG_CONFIG_ALLOW_SYSTEM_LIBS=\"1\" \"pkg-config\" \"--libs\" \"--cflags\" \"webkit2gtk-4.0\" \"webkit2gtk-4.0 >= 2.8\"", output: Output { status: ExitStatus(unix_wait_status(256)), stdout: "", stderr: "Package webkit2gtk-4.0 was not found in the pkg-config search path.\nPerhaps you should add the directory containing `webkit2gtk-4.0.pc'\nto the PKG_CONFIG_PATH environment variable\nPackage 'webkit2gtk-4.0', required by 'virtual:world', not found\nPackage 'webkit2gtk-4.0', required by 'virtual:world', not found\n" } }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5663d7cf55e2 - std::backtrace_rs::backtrace::libunwind::trace::h12d94fb93e64efeb
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5663d7cf55e2 - std::backtrace_rs::backtrace::trace_unsynchronized::h138fa2876d6b998b
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5663d7cf55e2 - std::sys::backtrace::_print_fmt::h352b2bf08234f7a5
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5663d7cf55e2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h6d19077111bf2052
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5663d7d0506f - core::fmt::rt::Argument::fmt::h4b5114a56e27e6d3
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5663d7d0506f - core::fmt::write::hdcf21b4a8a83514e
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x5663d7cc4893 - std::io::default_write_fmt::h19759bcf5cab25d1
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5663d7cc4893 - std::io::Write::write_fmt::h4b06d7fb18f8204b
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5663d7ccfb52 - std::sys::backtrace::BacktraceLock::print::hc2b4875f5d80034d
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5663d7cd2f8f - std::panicking::default_hook::{{closure}}::h905a8c4092e100bb
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x5663d7cd2de9 - std::panicking::default_hook::h82491bd5e973bcd1
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x5663d7cd3565 - std::panicking::panic_with_hook::had69cba82e257263
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x5663d7cd33fa - std::panicking::panic_handler::{{closure}}::h3dd7223ffdfb0831
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x5663d7ccfc99 - std::sys::backtrace::__rust_end_short_backtrace::h70d9c3ecea2861c6
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5663d7cb8b0d - __rustc[d9c763ef9790d63a]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x5663d7d08d20 - core::panicking::panic_fmt::h035a98694b847710
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5663d7d08416 - core::result::unwrap_failed::hd549a8a5f4d15281
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/core/src/result.rs:1855:5
[INFO] [stderr]     17:     0x5663d7c644ce - build_script_build::main::h8589a9af4513e65f
[INFO] [stderr]     18:     0x5663d7c64ed3 - core::ops::function::FnOnce::call_once::h51e4854b7ac41e95
[INFO] [stderr]     19:     0x5663d7c64e96 - std::sys::backtrace::__rust_begin_short_backtrace::hf40320e0fa7dc00a
[INFO] [stderr]     20:     0x5663d7c64e79 - std::rt::lang_start::{{closure}}::h8143ebf599ed71b4
[INFO] [stderr]     21:     0x5663d7cc6050 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h39df14509648ffd9
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x5663d7cc6050 - std::panicking::catch_unwind::do_call::h249a5e8553e6a2ed
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/panicking.rs:590:40
[INFO] [stderr]     23:     0x5663d7cc6050 - std::panicking::catch_unwind::h4cc7d4b5009664c5
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/panicking.rs:553:19
[INFO] [stderr]     24:     0x5663d7cc6050 - std::panic::catch_unwind::hf62421fb31235dcd
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x5663d7cc6050 - std::rt::lang_start_internal::{{closure}}::h044ee053c1a7ce48
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x5663d7cc6050 - std::panicking::catch_unwind::do_call::h78b113f7316d4f0c
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/panicking.rs:590:40
[INFO] [stderr]     27:     0x5663d7cc6050 - std::panicking::catch_unwind::h2619b5b3b0db8d93
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/panicking.rs:553:19
[INFO] [stderr]     28:     0x5663d7cc6050 - std::panic::catch_unwind::he49e81b228594388
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x5663d7cc6050 - std::rt::lang_start_internal::hd032eef47164dbcf
[INFO] [stderr]                                  at /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x5663d7c64e61 - std::rt::lang_start::hfd1edb8d9e7a1c90
[INFO] [stderr]     31:     0x5663d7c658f5 - main
[INFO] [stderr]     32:     0x7505bd04b1ca - <unknown>
[INFO] [stderr]     33:     0x7505bd04b28b - __libc_start_main
[INFO] [stderr]     34:     0x5663d7c63c25 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "4cb4eae6304355a18d563a86814da81470812ac54f9a9ae95c23bf5f6a2ccbf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cb4eae6304355a18d563a86814da81470812ac54f9a9ae95c23bf5f6a2ccbf9", kill_on_drop: false }`
[INFO] [stdout] 4cb4eae6304355a18d563a86814da81470812ac54f9a9ae95c23bf5f6a2ccbf9
