[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#c9af9c1dc85a55e309345030ff9cb7ea247953fa for pr-151146
[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 c9af9c1dc85a55e309345030ff9cb7ea247953fa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "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" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded webview-sys v0.3.3
[INFO] [stderr]   Downloaded boxfnonce v0.1.1
[INFO] [stderr]   Downloaded pkg-config v0.3.17
[INFO] [stderr]   Downloaded urlencoding v1.0.0
[INFO] [stderr]   Downloaded cc v1.0.50
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbf4e45c3cc7ce04642452cc738b105693b8e5368cd6ea12c318dc7b0dcdc2db
[INFO] running `Command { std: "docker" "start" "-a" "dbf4e45c3cc7ce04642452cc738b105693b8e5368cd6ea12c318dc7b0dcdc2db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbf4e45c3cc7ce04642452cc738b105693b8e5368cd6ea12c318dc7b0dcdc2db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbf4e45c3cc7ce04642452cc738b105693b8e5368cd6ea12c318dc7b0dcdc2db", kill_on_drop: false }`
[INFO] [stdout] dbf4e45c3cc7ce04642452cc738b105693b8e5368cd6ea12c318dc7b0dcdc2db
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be0e7b7a3f3a881b32f1fe295bc1f1879b5d31c390595a4bc92e61ee94320ca5
[INFO] running `Command { std: "docker" "start" "-a" "be0e7b7a3f3a881b32f1fe295bc1f1879b5d31c390595a4bc92e61ee94320ca5", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking urlencoding v1.0.0
[INFO] [stderr]     Checking boxfnonce v0.1.1
[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-06b37d1efa278b1d/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (79) 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:     0x625d9fe92d82 - std[6c41843ca4ea972b]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x625d9fe92d82 - std[6c41843ca4ea972b]::backtrace_rs::backtrace::trace_unsynchronized::<std[6c41843ca4ea972b]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x625d9fe92d82 - std[6c41843ca4ea972b]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x625d9fe92d82 - <<std[6c41843ca4ea972b]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[45f3dede45e89300]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x625d9fea745a - <core[45f3dede45e89300]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x625d9fea745a - core[45f3dede45e89300]::fmt::write
[INFO] [stderr]      6:     0x625d9fe996f6 - std[6c41843ca4ea972b]::io::default_write_fmt::<std[6c41843ca4ea972b]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x625d9fe996f6 - <std[6c41843ca4ea972b]::sys::stdio::unix::Stderr as std[6c41843ca4ea972b]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x625d9fe72e7f - <std[6c41843ca4ea972b]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x625d9fe72e7f - std[6c41843ca4ea972b]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x625d9fe8cf11 - std[6c41843ca4ea972b]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x625d9fe8d0cb - std[6c41843ca4ea972b]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x625d9fe72f38 - std[6c41843ca4ea972b]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x625d9fe68069 - std[6c41843ca4ea972b]::sys::backtrace::__rust_end_short_backtrace::<std[6c41843ca4ea972b]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x625d9fe739ad - __rustc[3eadb29bb9cdf11b]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x625d9fea7b6c - core[45f3dede45e89300]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x625d9fea78e2 - core[45f3dede45e89300]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x625d9fe093dc - build_script_build[e450262464a1807]::main
[INFO] [stderr]     18:     0x625d9fe0a103 - <fn() as core[45f3dede45e89300]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     19:     0x625d9fe08c96 - std[6c41843ca4ea972b]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     20:     0x625d9fe08ce9 - std[6c41843ca4ea972b]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     21:     0x625d9fe8c056 - <&dyn core[45f3dede45e89300]::ops::function::Fn<(), Output = i32> + core[45f3dede45e89300]::panic::unwind_safe::RefUnwindSafe + core[45f3dede45e89300]::marker::Sync as core[45f3dede45e89300]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x625d9fe8c056 - std[6c41843ca4ea972b]::panicking::catch_unwind::do_call::<&dyn core[45f3dede45e89300]::ops::function::Fn<(), Output = i32> + core[45f3dede45e89300]::panic::unwind_safe::RefUnwindSafe + core[45f3dede45e89300]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/panicking.rs:581:40
[INFO] [stderr]     23:     0x625d9fe8c056 - std[6c41843ca4ea972b]::panicking::catch_unwind::<i32, &dyn core[45f3dede45e89300]::ops::function::Fn<(), Output = i32> + core[45f3dede45e89300]::panic::unwind_safe::RefUnwindSafe + core[45f3dede45e89300]::marker::Sync>
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/panicking.rs:544:19
[INFO] [stderr]     24:     0x625d9fe8c056 - std[6c41843ca4ea972b]::panic::catch_unwind::<&dyn core[45f3dede45e89300]::ops::function::Fn<(), Output = i32> + core[45f3dede45e89300]::panic::unwind_safe::RefUnwindSafe + core[45f3dede45e89300]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x625d9fe8c056 - std[6c41843ca4ea972b]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x625d9fe8c056 - std[6c41843ca4ea972b]::panicking::catch_unwind::do_call::<std[6c41843ca4ea972b]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/panicking.rs:581:40
[INFO] [stderr]     27:     0x625d9fe8c056 - std[6c41843ca4ea972b]::panicking::catch_unwind::<isize, std[6c41843ca4ea972b]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/panicking.rs:544:19
[INFO] [stderr]     28:     0x625d9fe8c056 - std[6c41843ca4ea972b]::panic::catch_unwind::<std[6c41843ca4ea972b]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x625d9fe8c056 - std[6c41843ca4ea972b]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/c9af9c1dc85a55e309345030ff9cb7ea247953fa/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x625d9fe08c81 - std[6c41843ca4ea972b]::rt::lang_start::<()>
[INFO] [stderr]     31:     0x625d9fe0a165 - main
[INFO] [stderr]     32:     0x771f912691ca - <unknown>
[INFO] [stderr]     33:     0x771f9126928b - __libc_start_main
[INFO] [stderr]     34:     0x625d9fe08645 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "be0e7b7a3f3a881b32f1fe295bc1f1879b5d31c390595a4bc92e61ee94320ca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be0e7b7a3f3a881b32f1fe295bc1f1879b5d31c390595a4bc92e61ee94320ca5", kill_on_drop: false }`
[INFO] [stdout] be0e7b7a3f3a881b32f1fe295bc1f1879b5d31c390595a4bc92e61ee94320ca5
