[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#f5e2df741b4a9820a7579f0c8eccc951706a8782 for pr-147984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlienKevin%2Fmusic-synthesizer-webview" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-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-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AlienKevin/music-synthesizer-webview on toolchain f5e2df741b4a9820a7579f0c8eccc951706a8782
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "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" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pkg-config v0.3.17
[INFO] [stderr]   Downloaded urlencoding v1.0.0
[INFO] [stderr]   Downloaded web-view v0.5.4
[INFO] [stderr]   Downloaded boxfnonce v0.1.1
[INFO] [stderr]   Downloaded cc v1.0.50
[INFO] [stderr]   Downloaded webview-sys v0.3.3
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 588f69cdc99c6049f710d79c7da9bc3f7460fa126b4b5c531d26504f6bc87fee
[INFO] running `Command { std: "docker" "start" "-a" "588f69cdc99c6049f710d79c7da9bc3f7460fa126b4b5c531d26504f6bc87fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "588f69cdc99c6049f710d79c7da9bc3f7460fa126b4b5c531d26504f6bc87fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "588f69cdc99c6049f710d79c7da9bc3f7460fa126b4b5c531d26504f6bc87fee", kill_on_drop: false }`
[INFO] [stdout] 588f69cdc99c6049f710d79c7da9bc3f7460fa126b4b5c531d26504f6bc87fee
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a46704f160d3694c060291dbe1954da77dd20c08a4758a9052c293de178e078
[INFO] running `Command { std: "docker" "start" "-a" "5a46704f160d3694c060291dbe1954da77dd20c08a4758a9052c293de178e078", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.50
[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' (112) 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:     0x56466aa32072 - std::backtrace_rs::backtrace::libunwind::trace::h1970e67b2cd270b9
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x56466aa32072 - std::backtrace_rs::backtrace::trace_unsynchronized::hc7b359bfc0d13de8
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x56466aa32072 - std::sys::backtrace::_print_fmt::h701a76b69b3bb3e2
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x56466aa32072 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h43e4263445ba022b
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x56466aa41b4f - core::fmt::rt::Argument::fmt::h830247f1adad511f
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x56466aa41b4f - core::fmt::write::h4c16295a0bd61f3c
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x56466aa013d3 - std::io::default_write_fmt::hfc76503c34f98834
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x56466aa013d3 - std::io::Write::write_fmt::hf11cbaace1ee4980
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x56466aa0c5a2 - std::sys::backtrace::BacktraceLock::print::hefa34b6840eb0ead
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x56466aa0f9df - std::panicking::default_hook::{{closure}}::h50547d56729ca69d
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x56466aa0f839 - std::panicking::default_hook::hfc7171463c93ef10
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x56466aa0ffb5 - std::panicking::panic_with_hook::hbb2cef370b951e47
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x56466aa0fe4a - std::panicking::panic_handler::{{closure}}::h661f84bd25f1eb9e
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x56466aa0c6e9 - std::sys::backtrace::__rust_end_short_backtrace::hefbe60e7c80a29d4
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x56466a9f551d - __rustc[618a55cd962e06d8]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x56466aa45800 - core::panicking::panic_fmt::hf8d1e7ccff5afa16
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x56466aa44ef6 - core::result::unwrap_failed::hee4b2a904416c97b
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/core/src/result.rs:1862:5
[INFO] [stderr]     17:     0x56466a9a12ae - build_script_build::main::h9abed13eaa6122a1
[INFO] [stderr]     18:     0x56466a9a1cf3 - core::ops::function::FnOnce::call_once::he74fb4ca2fc24504
[INFO] [stderr]     19:     0x56466a9a1c76 - std::sys::backtrace::__rust_begin_short_backtrace::h49c67e121b8e2950
[INFO] [stderr]     20:     0x56466a9a1c59 - std::rt::lang_start::{{closure}}::h1aae29725e39a17f
[INFO] [stderr]     21:     0x56466aa02a60 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hb6a3d32a2695937f
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x56466aa02a60 - std::panicking::catch_unwind::do_call::h28ef54babab57caa
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:590:40
[INFO] [stderr]     23:     0x56466aa02a60 - std::panicking::catch_unwind::h6368f28f042e2c7a
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:553:19
[INFO] [stderr]     24:     0x56466aa02a60 - std::panic::catch_unwind::h7e9800de993f7592
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x56466aa02a60 - std::rt::lang_start_internal::{{closure}}::h35c3d1911128eb2f
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x56466aa02a60 - std::panicking::catch_unwind::do_call::h82a719c3d5f2fc6a
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:590:40
[INFO] [stderr]     27:     0x56466aa02a60 - std::panicking::catch_unwind::h6d36f0a1939e434c
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panicking.rs:553:19
[INFO] [stderr]     28:     0x56466aa02a60 - std::panic::catch_unwind::hd2cf2e89f1490a3e
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x56466aa02a60 - std::rt::lang_start_internal::h170d55e82a57c035
[INFO] [stderr]                                  at /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x56466a9a1c41 - std::rt::lang_start::h68da96306a776f12
[INFO] [stderr]     31:     0x56466a9a26d5 - main
[INFO] [stderr]     32:     0x7dea00ca71ca - <unknown>
[INFO] [stderr]     33:     0x7dea00ca728b - __libc_start_main
[INFO] [stderr]     34:     0x56466a9a0a05 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "5a46704f160d3694c060291dbe1954da77dd20c08a4758a9052c293de178e078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a46704f160d3694c060291dbe1954da77dd20c08a4758a9052c293de178e078", kill_on_drop: false }`
[INFO] [stdout] 5a46704f160d3694c060291dbe1954da77dd20c08a4758a9052c293de178e078
