[INFO] cloning repository https://github.com/javierjcf/gui_serial2websocket
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/javierjcf/gui_serial2websocket" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjavierjcf%2Fgui_serial2websocket", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjavierjcf%2Fgui_serial2websocket'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3630393488a10161402c08329ba1e21a17eb9864
[INFO] building javierjcf/gui_serial2websocket against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjavierjcf%2Fgui_serial2websocket" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/javierjcf/gui_serial2websocket
[INFO] finished tweaking git repo https://github.com/javierjcf/gui_serial2websocket
[INFO] tweaked toml for git repo https://github.com/javierjcf/gui_serial2websocket written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/javierjcf/gui_serial2websocket on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/javierjcf/gui_serial2websocket 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c82639e6ac347361d2d3e88855b3b4874e4f8b99f6d1d2ef09b8af193fdfdbc
[INFO] running `Command { std: "docker" "start" "-a" "8c82639e6ac347361d2d3e88855b3b4874e4f8b99f6d1d2ef09b8af193fdfdbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c82639e6ac347361d2d3e88855b3b4874e4f8b99f6d1d2ef09b8af193fdfdbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c82639e6ac347361d2d3e88855b3b4874e4f8b99f6d1d2ef09b8af193fdfdbc", kill_on_drop: false }`
[INFO] [stdout] 8c82639e6ac347361d2d3e88855b3b4874e4f8b99f6d1d2ef09b8af193fdfdbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f383fc498a475a77776af747302b9cf7a9304a988830c7bcca8c4998163b668f
[INFO] running `Command { std: "docker" "start" "-a" "f383fc498a475a77776af747302b9cf7a9304a988830c7bcca8c4998163b668f", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling xml-rs v0.8.25
[INFO] [stderr]    Compiling cc v1.2.15
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.5
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.1
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling xcursor v0.3.8
[INFO] [stderr]    Compiling fdeflate v0.3.7
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling crossfont v0.5.2
[INFO] [stderr]    Compiling foreign-types-shared v0.3.1
[INFO] [stderr]    Compiling owned_ttf_parser v0.25.0
[INFO] [stderr]    Compiling kurbo v0.8.3
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling nohash-hasher v0.2.0
[INFO] [stderr]    Compiling ab_glyph v0.2.29
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling raw-window-handle v0.4.3
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling wayland-sys v0.30.1
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling flate2 v1.1.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling x11rb-protocol v0.13.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling glutin v0.30.10
[INFO] [stderr]    Compiling home v0.5.11
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling glow v0.11.2
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling png v0.17.16
[INFO] [stderr]    Compiling glutin_egl_sys v0.5.1
[INFO] [stderr]    Compiling glutin_glx_sys v0.4.0
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling nix v0.25.1
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling servo-fontconfig v0.5.1
[INFO] [stderr]    Compiling freetype-rs v0.26.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/4987e9d4227139400384ab59296ffee3b0fb1183/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.98/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=ebc225f14a6cd227 -C extra-filename=-96ea7af2524425c6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c1602ad0331f815a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-7f88217c94841094.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-6759994d78e94663.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f383fc498a475a77776af747302b9cf7a9304a988830c7bcca8c4998163b668f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f383fc498a475a77776af747302b9cf7a9304a988830c7bcca8c4998163b668f", kill_on_drop: false }`
[INFO] [stdout] f383fc498a475a77776af747302b9cf7a9304a988830c7bcca8c4998163b668f