[INFO] cloning repository https://github.com/JKI757/serial_micro_gui_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JKI757/serial_micro_gui_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJKI757%2Fserial_micro_gui_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJKI757%2Fserial_micro_gui_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a5981d03d338927fac0727a89a3ac7c4e6b46b4
[INFO] checking JKI757/serial_micro_gui_rust against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJKI757%2Fserial_micro_gui_rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JKI757/serial_micro_gui_rust on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JKI757/serial_micro_gui_rust
[INFO] finished tweaking git repo https://github.com/JKI757/serial_micro_gui_rust
[INFO] tweaked toml for git repo https://github.com/JKI757/serial_micro_gui_rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/JKI757/serial_micro_gui_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded iced_winit v0.2.0
[INFO] [stderr]   Downloaded iced_web v0.3.0
[INFO] [stderr]   Downloaded clipboard_x11 v0.1.0
[INFO] [stderr]   Downloaded clipboard_wayland v0.1.2
[INFO] [stderr]   Downloaded iced_wgpu v0.3.0
[INFO] [stderr]   Downloaded iced_style v0.2.0
[INFO] [stderr]   Downloaded iced_graphics v0.1.0
[INFO] [stderr]   Downloaded font-kit v0.8.0
[INFO] [stderr]   Downloaded iced v0.2.0
[INFO] [stderr]   Downloaded iced_core v0.3.0
[INFO] [stderr]   Downloaded window_clipboard v0.1.3
[INFO] [stderr]   Downloaded iced_futures v0.2.0
[INFO] [stderr]   Downloaded iced_native v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 850bfd868d4c3b58bc13c4b9155a4288af954199bc6cdb6b8080c4260d4e6125
[INFO] running `Command { std: "docker" "start" "-a" "850bfd868d4c3b58bc13c4b9155a4288af954199bc6cdb6b8080c4260d4e6125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "850bfd868d4c3b58bc13c4b9155a4288af954199bc6cdb6b8080c4260d4e6125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "850bfd868d4c3b58bc13c4b9155a4288af954199bc6cdb6b8080c4260d4e6125", kill_on_drop: false }`
[INFO] [stdout] 850bfd868d4c3b58bc13c4b9155a4288af954199bc6cdb6b8080c4260d4e6125
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0772949b2c8dc0b680df57fd8e0f6906c54388e86f79ad537f5c529ebbc7a9a1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0772949b2c8dc0b680df57fd8e0f6906c54388e86f79ad537f5c529ebbc7a9a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.4
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking inplace_it v0.3.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking iced_core v0.3.0
[INFO] [stderr]     Checking weezl v0.1.3
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]     Checking svg_fmt v0.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling wayland-sys v0.28.2
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]    Compiling glam v0.10.2
[INFO] [stderr]     Checking libloading v0.6.6
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking iced_style v0.2.0
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ab_glyph v0.2.7
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking owned_ttf_parser v0.6.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking wgpu-types v0.6.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling pathfinder_simd v0.5.0
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking ash v0.31.0
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]    Compiling wayland-scanner v0.28.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking spirv_headers v1.5.0
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking ordered-float v2.0.1
[INFO] [stderr]     Checking euclid v0.22.1
[INFO] [stderr]     Checking glyph_brush_layout v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling wayland-client v0.28.2
[INFO] [stderr]    Compiling wayland-protocols v0.28.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking parking_lot_core v0.8.1
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking guillotiere v0.6.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking gfx-hal v0.6.0
[INFO] [stderr]     Checking xcursor v0.3.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking serial v0.4.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.54/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=9f2ea1db7a5b7071 -C extra-filename=-9f2ea1db7a5b7071 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-68d422dfc8864dc7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-65304f056af28667.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-4182131ee577b5da.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0772949b2c8dc0b680df57fd8e0f6906c54388e86f79ad537f5c529ebbc7a9a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0772949b2c8dc0b680df57fd8e0f6906c54388e86f79ad537f5c529ebbc7a9a1", kill_on_drop: false }`
[INFO] [stdout] 0772949b2c8dc0b680df57fd8e0f6906c54388e86f79ad537f5c529ebbc7a9a1