[INFO] fetching crate mergui 0.1.0-alpha0.8... [INFO] checking mergui-0.1.0-alpha0.8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate mergui 0.1.0-alpha0.8 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate mergui 0.1.0-alpha0.8 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mergui 0.1.0-alpha0.8 [INFO] finished tweaking crates.io crate mergui 0.1.0-alpha0.8 [INFO] tweaked toml for crates.io crate mergui 0.1.0-alpha0.8 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate crates.io crate mergui 0.1.0-alpha0.8 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded platter v0.1.4 [INFO] [stderr] Downloaded futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Downloaded phf_shared v0.7.24 [INFO] [stderr] Downloaded string_cache_codegen v0.3.1 [INFO] [stderr] Downloaded string_cache_shared v0.3.0 [INFO] [stderr] Downloaded futures-executor-preview v0.3.0-alpha.19 [INFO] [stderr] Downloaded debug_unreachable v0.1.1 [INFO] [stderr] Downloaded phf_codegen v0.7.24 [INFO] [stderr] Downloaded html5ever-atoms v0.2.2 [INFO] [stderr] Downloaded gestalt v0.1.0 [INFO] [stderr] Downloaded unreachable v0.1.1 [INFO] [stderr] Downloaded ndk-glue v0.1.0 [INFO] [stderr] Downloaded phf v0.7.24 [INFO] [stderr] Downloaded diff v0.1.12 [INFO] [stderr] Downloaded RustyXML v0.1.1 [INFO] [stderr] Downloaded calloop v0.4.4 [INFO] [stderr] Downloaded blinds v0.1.6 [INFO] [stderr] Downloaded glutin v0.24.1 [INFO] [stderr] Downloaded ndk-sys v0.1.0 [INFO] [stderr] Downloaded winit v0.22.2 [INFO] [stderr] Downloaded wayland-protocols v0.23.6 [INFO] [stderr] Downloaded smithay-client-toolkit v0.6.6 [INFO] [stderr] Downloaded html5ever v0.13.1 [INFO] [stderr] Downloaded lalrpop v0.16.3 [INFO] [stderr] Downloaded image v0.22.5 [INFO] [stderr] Downloaded syn v1.0.52 [INFO] [stderr] Downloaded cocoa v0.20.2 [INFO] [stderr] Downloaded ndk v0.1.0 [INFO] [stderr] Downloaded cc v1.0.65 [INFO] [stderr] Downloaded wayland-client v0.23.6 [INFO] [stderr] Downloaded ahash v0.3.8 [INFO] [stderr] Downloaded hashbrown v0.7.2 [INFO] [stderr] Downloaded rustc-serialize v0.3.24 [INFO] [stderr] Downloaded serde v0.9.15 [INFO] [stderr] Downloaded tendril v0.2.4 [INFO] [stderr] Downloaded docopt v1.1.0 [INFO] [stderr] Downloaded term v0.4.6 [INFO] [stderr] Downloaded webidl v0.8.0 [INFO] [stderr] Downloaded glow v0.4.0 [INFO] [stderr] Downloaded png v0.15.3 [INFO] [stderr] Downloaded futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Downloaded net2 v0.2.36 [INFO] [stderr] Downloaded wayland-commons v0.23.6 [INFO] [stderr] Downloaded wayland-scanner v0.23.6 [INFO] [stderr] Downloaded libloading v0.6.5 [INFO] [stderr] Downloaded wayland-sys v0.23.6 [INFO] [stderr] Downloaded ascii-canvas v1.0.0 [INFO] [stderr] Downloaded string_cache v0.4.0 [INFO] [stderr] Downloaded quicksilver v0.4.0 [INFO] [stderr] Downloaded string_cache v0.7.5 [INFO] [stderr] Downloaded ena v0.11.0 [INFO] [stderr] Downloaded golem v0.1.7 [INFO] [stderr] Downloaded slotmap v0.3.0 [INFO] [stderr] Downloaded mint v0.5.6 [INFO] [stderr] Downloaded webgl_generator v0.2.0 [INFO] [stderr] Downloaded lalrpop-util v0.16.3 [INFO] [stderr] Downloaded lazy_static v0.2.11 [INFO] [stderr] Downloaded futf v0.1.4 [INFO] [stderr] Downloaded siphasher v0.2.3 [INFO] [stderr] Downloaded phf_generator v0.7.24 [INFO] [stderr] Downloaded html2runes v1.0.1 [INFO] [stderr] Downloaded string_cache_codegen v0.4.4 [INFO] [stderr] Downloaded utf-8 v0.6.0 [INFO] [stderr] Downloaded webgl_stdweb v0.3.0 [INFO] [stderr] Downloaded futures-util-preview v0.3.0-alpha.19 [INFO] [stderr] Downloaded ordered-float v1.1.0 [INFO] [stderr] Downloaded tinyvec v1.1.0 [INFO] [stderr] Downloaded elefont v0.1.3 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0abedf518f888501ec7c2680d755866331af86e752d5edce62f6cc6bcf13ebe8 [INFO] running `Command { std: "docker" "start" "-a" "0abedf518f888501ec7c2680d755866331af86e752d5edce62f6cc6bcf13ebe8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0abedf518f888501ec7c2680d755866331af86e752d5edce62f6cc6bcf13ebe8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0abedf518f888501ec7c2680d755866331af86e752d5edce62f6cc6bcf13ebe8", kill_on_drop: false }` [INFO] [stdout] 0abedf518f888501ec7c2680d755866331af86e752d5edce62f6cc6bcf13ebe8 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1f4a68cd69173e58ec2f2a9714c3330731e92c4783d24ab9c33ed5361172b163 [INFO] running `Command { std: "docker" "start" "-a" "1f4a68cd69173e58ec2f2a9714c3330731e92c4783d24ab9c33ed5361172b163", kill_on_drop: false }` [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling xml-rs v0.8.3 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling khronos_api v3.1.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Checking libloading v0.6.5 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling syn v1.0.52 [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking downcast-rs v1.2.0 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking smallvec v1.5.0 [INFO] [stderr] Checking dlib v0.4.2 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Compiling cc v1.0.65 [INFO] [stderr] Checking wayland-sys v0.23.6 [INFO] [stderr] Checking xdg v2.2.0 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Checking futures-task v0.3.8 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Checking futures-core v0.3.8 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Checking stb_truetype v0.3.1 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Compiling hashbrown v0.7.2 [INFO] [stderr] Compiling gl_generator v0.14.0 [INFO] [stderr] Compiling x11-dl v2.18.5 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.36 [INFO] [stderr] Compiling gl_generator v0.13.1 [INFO] [stderr] Checking parking_lot_core v0.7.2 [INFO] [stderr] Checking memmap v0.7.0 [INFO] [stderr] Checking parking_lot v0.10.2 [INFO] [stderr] Checking shared_library v0.1.9 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking raw-window-handle v0.3.3 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Checking jpeg-decoder v0.1.20 [INFO] [stderr] Checking tinyvec v1.1.0 [INFO] [stderr] Checking osmesa-sys v0.1.2 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking ahash v0.3.8 [INFO] [stderr] Checking png v0.15.3 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Compiling wayland-scanner v0.23.6 [INFO] [stderr] Checking bytemuck v1.4.1 [INFO] [stderr] Checking mint v0.5.6 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Checking ordered-float v1.1.0 [INFO] [stderr] Checking approx v0.3.2 [INFO] [stderr] Checking line_drawing v0.7.0 [INFO] [stderr] Compiling libloading v0.5.2 [INFO] [stderr] Checking rusttype v0.8.3 [INFO] [stderr] Compiling glutin_glx_sys v0.1.7 [INFO] [stderr] Compiling glutin_egl_sys v0.1.5 [INFO] [stderr] Compiling glow v0.4.0 [INFO] [stderr] Checking unicode-normalization v0.1.16 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking rusttype v0.7.9 [INFO] [stderr] Checking andrew v0.2.1 [INFO] [stderr] Checking elefont v0.1.3 [INFO] [stderr] Checking image v0.22.5 [INFO] [stderr] Checking calloop v0.4.4 [INFO] [stderr] Checking wayland-commons v0.23.6 [INFO] [stderr] Compiling wayland-client v0.23.6 [INFO] [stderr] Compiling wayland-protocols v0.23.6 [INFO] [stderr] Checking golem v0.1.7 [INFO] [stderr] Compiling pin-project-internal v1.0.2 [INFO] [stderr] Checking pin-project v1.0.2 [INFO] [stderr] Checking futures-util v0.3.8 [INFO] [stderr] Checking futures-executor v0.3.8 [INFO] [stderr] Checking platter v0.1.4 [INFO] [stderr] Checking smithay-client-toolkit v0.6.6 [INFO] [stderr] Checking winit v0.22.2 [INFO] [stderr] Checking glutin v0.24.1 [INFO] [stderr] Checking blinds v0.1.6 [INFO] [stderr] Checking quicksilver v0.4.0 [INFO] [stderr] Checking mergui v0.1.0-alpha0.8 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.97s [INFO] running `Command { std: "docker" "inspect" "1f4a68cd69173e58ec2f2a9714c3330731e92c4783d24ab9c33ed5361172b163", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f4a68cd69173e58ec2f2a9714c3330731e92c4783d24ab9c33ed5361172b163", kill_on_drop: false }` [INFO] [stdout] 1f4a68cd69173e58ec2f2a9714c3330731e92c4783d24ab9c33ed5361172b163 [INFO] checking mergui-0.1.0-alpha0.8 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate mergui 0.1.0-alpha0.8 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate mergui 0.1.0-alpha0.8 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mergui 0.1.0-alpha0.8 [INFO] finished tweaking crates.io crate mergui 0.1.0-alpha0.8 [INFO] tweaked toml for crates.io crate mergui 0.1.0-alpha0.8 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate crates.io crate mergui 0.1.0-alpha0.8 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5568cf7cd9e2baac2597adff7dfabfb3856a6970ed66c21af8e591c6ea2f8e90 [INFO] running `Command { std: "docker" "start" "-a" "5568cf7cd9e2baac2597adff7dfabfb3856a6970ed66c21af8e591c6ea2f8e90", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5568cf7cd9e2baac2597adff7dfabfb3856a6970ed66c21af8e591c6ea2f8e90", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5568cf7cd9e2baac2597adff7dfabfb3856a6970ed66c21af8e591c6ea2f8e90", kill_on_drop: false }` [INFO] [stdout] 5568cf7cd9e2baac2597adff7dfabfb3856a6970ed66c21af8e591c6ea2f8e90 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bfba8f07ae35efc943bec7dd6eb8f3691a248a865ce65b19b81cd3e6ffe63bb7 [INFO] running `Command { std: "docker" "start" "-a" "bfba8f07ae35efc943bec7dd6eb8f3691a248a865ce65b19b81cd3e6ffe63bb7", kill_on_drop: false }` [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling xml-rs v0.8.3 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling khronos_api v3.1.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Checking libloading v0.6.5 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Compiling syn v1.0.52 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking downcast-rs v1.2.0 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Checking dlib v0.4.2 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Checking wayland-sys v0.23.6 [INFO] [stderr] Checking xdg v2.2.0 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking smallvec v1.5.0 [INFO] [stderr] Compiling cc v1.0.65 [INFO] [stderr] Checking futures-task v0.3.8 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Checking futures-core v0.3.8 [INFO] [stderr] Checking stb_truetype v0.3.1 [INFO] [stderr] Compiling x11-dl v2.18.5 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Compiling hashbrown v0.7.2 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Checking tinyvec v1.1.0 [INFO] [stderr] Checking jpeg-decoder v0.1.20 [INFO] [stderr] Checking ahash v0.3.8 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Checking bytemuck v1.4.1 [INFO] [stderr] Compiling gl_generator v0.14.0 [INFO] [stderr] Compiling gl_generator v0.13.1 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking net2 v0.2.36 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking parking_lot_core v0.7.2 [INFO] [stderr] Checking memmap v0.7.0 [INFO] [stderr] Checking shared_library v0.1.9 [INFO] [stderr] Compiling wayland-scanner v0.23.6 [INFO] [stderr] Checking parking_lot v0.10.2 [INFO] [stderr] Checking raw-window-handle v0.3.3 [INFO] [stderr] Checking osmesa-sys v0.1.2 [INFO] [stderr] Checking png v0.15.3 [INFO] [stderr] Checking mint v0.5.6 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Compiling libloading v0.5.2 [INFO] [stderr] Compiling glutin_glx_sys v0.1.7 [INFO] [stderr] Compiling glutin_egl_sys v0.1.5 [INFO] [stderr] Checking ordered-float v1.1.0 [INFO] [stderr] Checking approx v0.3.2 [INFO] [stderr] Checking line_drawing v0.7.0 [INFO] [stderr] Compiling glow v0.4.0 [INFO] [stderr] Checking unicode-normalization v0.1.16 [INFO] [stderr] Checking rusttype v0.8.3 [INFO] [stderr] Checking rusttype v0.7.9 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking andrew v0.2.1 [INFO] [stderr] Checking elefont v0.1.3 [INFO] [stderr] Compiling wayland-client v0.23.6 [INFO] [stderr] Compiling wayland-protocols v0.23.6 [INFO] [stderr] Checking image v0.22.5 [INFO] [stderr] Checking wayland-commons v0.23.6 [INFO] [stderr] Checking calloop v0.4.4 [INFO] [stderr] Checking golem v0.1.7 [INFO] [stderr] Compiling pin-project-internal v1.0.2 [INFO] [stderr] Checking pin-project v1.0.2 [INFO] [stderr] Checking futures-util v0.3.8 [INFO] [stderr] Checking futures-executor v0.3.8 [INFO] [stderr] Checking platter v0.1.4 [INFO] [stderr] Checking smithay-client-toolkit v0.6.6 [INFO] [stderr] Checking winit v0.22.2 [INFO] [stderr] Checking glutin v0.24.1 [INFO] [stderr] Checking blinds v0.1.6 [INFO] [stderr] Checking quicksilver v0.4.0 [INFO] [stderr] Checking mergui v0.1.0-alpha0.8 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: a value of type `!` cannot be built from an iterator over elements of type `()` [INFO] [stdout] --> src/widgets/dropdown.rs:207:28 [INFO] [stdout] | [INFO] [stdout] 207 | .collect::>()?; [INFO] [stdout] | ------- ^^^^^^^^^ value of type `!` cannot be built from `std::iter::Iterator` [INFO] [stdout] | | [INFO] [stdout] | required by a bound introduced by this call [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromIterator<()>` is not implemented for `!`, which is required by `Result<_, QuicksilverError>: FromIterator>` [INFO] [stdout] = help: the trait `FromIterator>` is implemented for `Result` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #48950 for more information) [INFO] [stdout] = help: did you intend to use the type `()` here instead? [INFO] [stdout] = note: required for `Result` to implement `FromIterator>` [INFO] [stdout] note: required by a bound in `collect` [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/core/src/iter/traits/iterator.rs:1999:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: a value of type `!` cannot be built from an iterator over elements of type `()` [INFO] [stdout] --> src/widgets/dropdown.rs:207:28 [INFO] [stdout] | [INFO] [stdout] 207 | .collect::>()?; [INFO] [stdout] | ------- ^^^^^^^^^ value of type `!` cannot be built from `std::iter::Iterator` [INFO] [stdout] | | [INFO] [stdout] | required by a bound introduced by this call [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromIterator<()>` is not implemented for `!`, which is required by `Result<_, QuicksilverError>: FromIterator>` [INFO] [stdout] = help: the trait `FromIterator>` is implemented for `Result` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #48950 for more information) [INFO] [stdout] = help: did you intend to use the type `()` here instead? [INFO] [stdout] = note: required for `Result` to implement `FromIterator>` [INFO] [stdout] note: required by a bound in `collect` [INFO] [stdout] --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/core/src/iter/traits/iterator.rs:1999:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `mergui` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `mergui` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "bfba8f07ae35efc943bec7dd6eb8f3691a248a865ce65b19b81cd3e6ffe63bb7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bfba8f07ae35efc943bec7dd6eb8f3691a248a865ce65b19b81cd3e6ffe63bb7", kill_on_drop: false }` [INFO] [stdout] bfba8f07ae35efc943bec7dd6eb8f3691a248a865ce65b19b81cd3e6ffe63bb7