[INFO] fetching crate monitor_sleep_toggle 1.0.1... [INFO] testing monitor_sleep_toggle-1.0.1 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate monitor_sleep_toggle 1.0.1 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate monitor_sleep_toggle 1.0.1 [INFO] finished tweaking crates.io crate monitor_sleep_toggle 1.0.1 [INFO] tweaked toml for crates.io crate monitor_sleep_toggle 1.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate monitor_sleep_toggle 1.0.1 on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate monitor_sleep_toggle 1.0.1 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0abc9943c0e3f6de077cf31b3bd688ab6067015ce09f1404c5c99863efcffdbb [INFO] running `Command { std: "docker" "start" "-a" "0abc9943c0e3f6de077cf31b3bd688ab6067015ce09f1404c5c99863efcffdbb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0abc9943c0e3f6de077cf31b3bd688ab6067015ce09f1404c5c99863efcffdbb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0abc9943c0e3f6de077cf31b3bd688ab6067015ce09f1404c5c99863efcffdbb", kill_on_drop: false }` [INFO] [stdout] 0abc9943c0e3f6de077cf31b3bd688ab6067015ce09f1404c5c99863efcffdbb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a3d598b2dec49739eae1afb4144c45af6bfbf5c7662ac2c819e5c9956c756b48 [INFO] running `Command { std: "docker" "start" "-a" "a3d598b2dec49739eae1afb4144c45af6bfbf5c7662ac2c819e5c9956c756b48", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.218 [INFO] [stderr] Compiling hashbrown v0.15.2 [INFO] [stderr] Compiling equivalent v1.0.2 [INFO] [stderr] Compiling winnow v0.5.40 [INFO] [stderr] Compiling target-lexicon v0.12.16 [INFO] [stderr] Compiling smallvec v1.14.0 [INFO] [stderr] Compiling version-compare v0.2.0 [INFO] [stderr] Compiling libc v0.2.170 [INFO] [stderr] Compiling once_cell v1.20.3 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling quote v1.0.39 [INFO] [stderr] Compiling semver v1.0.26 [INFO] [stderr] Compiling gio v0.18.4 [INFO] [stderr] Compiling simd-adler32 v0.3.7 [INFO] [stderr] Compiling futures-io v0.3.31 [INFO] [stderr] Compiling syn v2.0.99 [INFO] [stderr] Compiling rustc_version v0.4.1 [INFO] [stderr] Compiling x11 v2.21.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling memoffset v0.9.1 [INFO] [stderr] Compiling miniz_oxide v0.8.5 [INFO] [stderr] Compiling gtk v0.18.2 [INFO] [stderr] Compiling num-bigint v0.4.6 [INFO] [stderr] Compiling libxdo-sys v0.11.0 [INFO] [stderr] Compiling built v0.7.7 [INFO] [stderr] Compiling aligned-vec v0.5.0 [INFO] [stderr] Compiling maybe-rayon v0.1.1 [INFO] [stderr] Compiling itertools v0.12.1 [INFO] [stderr] Compiling fdeflate v0.3.7 [INFO] [stderr] Compiling simd_helpers v0.1.0 [INFO] [stderr] Compiling field-offset v0.3.6 [INFO] [stderr] Compiling v_frame v0.3.8 [INFO] [stderr] Compiling flate2 v1.1.0 [INFO] [stderr] Compiling crossbeam-channel v0.5.14 [INFO] [stderr] Compiling indexmap v2.7.1 [INFO] [stderr] Compiling cfg-expr v0.15.8 [INFO] [stderr] Compiling libloading v0.7.4 [INFO] [stderr] Compiling rav1e v0.7.1 [INFO] [stderr] Compiling x11-dl v2.21.0 [INFO] [stderr] Compiling dpi v0.1.1 [INFO] [stderr] Compiling new_debug_unreachable v1.0.6 [INFO] [stderr] Compiling option-ext v0.2.0 [INFO] [stderr] Compiling percent-encoding v2.3.1 [INFO] [stderr] Compiling unicode-segmentation v1.12.0 [INFO] [stderr] Compiling imgref v1.11.0 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling weezl v0.1.8 [INFO] [stderr] Compiling bitstream-io v2.6.0 [INFO] [stderr] Compiling quick-error v2.0.1 [INFO] [stderr] Compiling noop_proc_macro v0.3.0 [INFO] [stderr] Compiling form_urlencoded v1.2.1 [INFO] [stderr] Compiling num-rational v0.4.2 [INFO] [stderr] Compiling loop9 v0.1.5 [INFO] [stderr] Compiling png v0.17.16 [INFO] [stderr] Compiling avif-serialize v0.8.3 [INFO] [stderr] Compiling zune-inflate v0.2.54 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Compiling dirs-sys v0.5.0 [INFO] [stderr] Compiling half v2.4.1 [INFO] [stderr] Compiling bit_field v0.10.2 [INFO] [stderr] Compiling rgb v0.8.50 [INFO] [stderr] Compiling zune-core v0.4.12 [INFO] [stderr] Compiling byteorder-lite v0.1.0 [INFO] [stderr] Compiling bytemuck v1.22.0 [INFO] [stderr] Compiling av1-grain v0.2.3 [INFO] [stderr] Compiling jpeg-decoder v0.3.1 [INFO] [stderr] Compiling lebe v0.5.2 [INFO] [stderr] Compiling zune-jpeg v0.4.14 [INFO] [stderr] Compiling gif v0.13.1 [INFO] [stderr] Compiling image-webp v0.2.1 [INFO] [stderr] Compiling parking_lot v0.12.3 [INFO] [stderr] Compiling exr v1.73.0 [INFO] [stderr] Compiling qoi v0.4.1 [INFO] [stderr] Compiling dirs v6.0.0 [INFO] [stderr] Compiling raw-window-handle v0.6.2 [INFO] [stderr] Compiling tiff v0.9.1 [INFO] [stderr] Compiling libxdo v0.6.0 [INFO] [stderr] Compiling toml_datetime v0.6.3 [INFO] [stderr] Compiling serde_spanned v0.6.8 [INFO] [stderr] Compiling synstructure v0.13.1 [INFO] [stderr] Compiling toml_edit v0.20.2 [INFO] [stderr] Compiling toml_edit v0.19.15 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling serde_derive v1.0.218 [INFO] [stderr] Compiling zerofrom-derive v0.1.6 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling yoke-derive v0.7.5 [INFO] [stderr] Compiling zerovec-derive v0.10.3 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling icu_provider_macros v1.5.0 [INFO] [stderr] Compiling profiling-procmacros v1.0.16 [INFO] [stderr] Compiling arg_enum_proc_macro v0.3.4 [INFO] [stderr] Compiling num-derive v0.4.2 [INFO] [stderr] Compiling thiserror-impl v2.0.12 [INFO] [stderr] Compiling profiling v1.0.16 [INFO] [stderr] Compiling dlopen2_derive v0.4.0 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling dlopen2 v0.7.0 [INFO] [stderr] Compiling zerofrom v0.1.6 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Compiling yoke v0.7.5 [INFO] [stderr] Compiling zerovec v0.10.4 [INFO] [stderr] Compiling thiserror v2.0.12 [INFO] [stderr] Compiling proc-macro-crate v1.3.1 [INFO] [stderr] Compiling toml v0.8.2 [INFO] [stderr] Compiling proc-macro-crate v2.0.2 [INFO] [stderr] Compiling gtk3-macros v0.18.2 [INFO] [stderr] Compiling glib-macros v0.18.5 [INFO] [stderr] Compiling system-deps v6.2.2 [INFO] [stderr] Compiling tinystr v0.7.6 [INFO] [stderr] Compiling icu_collections v1.5.0 [INFO] [stderr] Compiling futures-executor v0.3.31 [INFO] [stderr] Compiling icu_locid v1.5.0 [INFO] [stderr] Compiling glib-sys v0.18.1 [INFO] [stderr] Compiling gobject-sys v0.18.0 [INFO] [stderr] Compiling gio-sys v0.18.1 [INFO] [stderr] Compiling gdk-sys v0.18.2 [INFO] [stderr] Compiling pango-sys v0.18.0 [INFO] [stderr] Compiling cairo-sys-rs v0.18.2 [INFO] [stderr] Compiling gdk-pixbuf-sys v0.18.0 [INFO] [stderr] Compiling atk-sys v0.18.2 [INFO] [stderr] Compiling gtk-sys v0.18.2 [INFO] [stderr] Compiling gdkx11-sys v0.18.2 [INFO] [stderr] Compiling icu_provider v1.5.0 [INFO] [stderr] Compiling icu_locid_transform v1.5.0 [INFO] [stderr] Compiling icu_properties v1.5.1 [INFO] [stderr] Compiling gdkwayland-sys v0.18.2 [INFO] [stderr] Compiling bitflags v2.9.0 [INFO] [stderr] Compiling glib v0.18.5 [INFO] [stderr] Compiling keyboard-types v0.7.0 [INFO] [stderr] Compiling libappindicator-sys v0.9.0 [INFO] [stderr] Compiling icu_normalizer v1.5.0 [INFO] [stderr] Compiling idna_adapter v1.2.0 [INFO] [stderr] Compiling idna v1.0.3 [INFO] [stderr] Compiling url v2.5.4 [INFO] [stderr] Compiling ravif v0.11.11 [INFO] [stderr] Compiling image v0.25.5 [INFO] [stderr] Compiling cairo-rs v0.18.5 [INFO] [stderr] Compiling atk v0.18.2 [INFO] [stderr] Compiling gdk-pixbuf v0.18.5 [INFO] [stderr] Compiling pango v0.18.3 [INFO] [stderr] Compiling gdk v0.18.2 [INFO] [stderr] Compiling libappindicator v0.9.0 [INFO] [stderr] Compiling muda v0.16.1 [INFO] [stderr] Compiling tao v0.32.8 [INFO] [stderr] Compiling tray-icon v0.20.0 [INFO] [stderr] Compiling monitor_sleep_toggle v1.0.1 (/opt/rustwide/workdir) [INFO] [stdout] error: linking with `cc` failed: exit status: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-m64" "/tmp/rustcFa12J5/symbols.o" "<7 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libimage-7259404544565a5d,libimage_webp-9f8b3a8434cdb820,libqoi-4d2d8f25c985206c,libexr-253781fae8e0b836,libzune_inflate-830e3160eed64e83,libbit_field-fb70c6f816573082,liblebe-5694b67511a9813c,libhalf-69da55b60c671332,libzune_jpeg-68473c4b52f604c7,libzune_core-d8a810c65908360c,libgif-a79f84abcc2f81df,libcolor_quant-72accfe2cafd1a2d,libbyteorder_lite-f5df2d14b4488fc7,libravif-b6c004fdd3f38a94,libloop9-c515fa5eea69c246,libavif_serialize-ddf2765727e17278,libquick_error-702b385be5f12d4a,librgb-99db55da7664e2e5,librav1e-4d52283aded1fc57,libprofiling-926cf09d108eb838,libav1_grain-41b229f07a85961f,libnom-1f9e736189f20c7a,libnum_rational-756fb683b3f15b43,libnum_bigint-9fa966b5545bac0e,libnum_integer-d3e4a14ee2c6f46d,libdebug_unreachable-2bce5da2715432ba,libmaybe_rayon-c917a3d2347944ed,librayon-874a60ad382c3868,librayon_core-8bf0f5a29314231d,libcrossbeam_deque-ea3ff61555084ad8,libcrossbeam_epoch-aa86d5e6e408d661,libv_frame-29e2b16c532fc791,libaligned_vec-657289efa2e8e100,libarrayvec-09741c597eeba17a,libbitstream_io-a4cb3b37262b126d,libitertools-039d9c925d898bbe,libeither-e5ea87bd27ac73a9,libimgref-4a6803244c01930e,libbytemuck-0824e5c758f4af44,libnum_traits-5ba94aa5999cc22f,libtiff-9013d333dd760b81,libweezl-81d61edd414eb5e8,libjpeg_decoder-5be1025935bd4e47,libanyhow-48c4874d2e1f3573,libtray_icon-1f2a63b4801fd1d1,libdirs-8d2de2fa379a3479,libdirs_sys-dd62f00bc0252888,liboption_ext-61303ef911796993,libpng-92b9116b1044155f,libbitflags-dde12b0d7d495b50,libflate2-0a00d987d1df4bad,libminiz_oxide-7bca4df72a47d71c,libfdeflate-a48e901c10f6d560,libsimd_adler32-a85d6c6326d2f661,libcrc32fast-dba2d92cf6d67f2f,libmuda-21c54bd6f0060be1,liblibxdo-84b5b920570e1b37,liblibxdo_sys-2f453920ad710869,libkeyboard_types-62f95a627e802381,libunicode_segmentation-421de088ab714999,liblibappindicator-24261cb6438c9d8e,liblibappindicator_sys-760031f366db162f,liblibloading-1d9d598bea47447c,libthiserror-8b5e53f659bdb5e6,libtao-58d2324f14edee50,libgdk_x11_sys-985a0763820d924f,libx11-fd8cfa3130080e26,libgdk_wayland_sys-35dac710e52f83c1,liburl-624510fe606195fa,libidna-b60f3b48f462ac81,libidna_adapter-6a594df75140bf3b,libicu_normalizer-47f58d43db0930dc,libicu_normalizer_data-5f7d7c19a0e21ea1,libwrite16-e996c39ad8ba5f0b,libutf8_iter-51566bbad89f3a68,libutf16_iter-7ca3c212f3ee1c68,libicu_properties-d91ae2ac5c5835ec,libicu_properties_data-61b2e4b1f2e1f988,libicu_locid_transform-c752f3c4a6969db0,libicu_locid_transform_data-94513cffde0b2fcb,libicu_collections-b9a7396e7516a666,libicu_provider-aece7fc62a7c16b5,libicu_locid-434ef1fc6e5137be,liblitemap-79485f3bd9d9879d,libtinystr-a49202c2a7179907,libzerovec-af900f75c42c7147,libwriteable-1e5dea0053e4c229,libyoke-ec8a3a31b49ab1d1,libzerofrom-e4a885fcb7124d9b,libstable_deref_trait-14e4a70bda35dfe8,libform_urlencoded-ccbcef42f8ae53ab,libpercent_encoding-e42b7a0b4a5edca5,libparking_lot-2bb7623463f8e203,libparking_lot_core-82deef62f7a8d4df,libcfg_if-3e7fc4e38d4a72b5,liblock_api-a7c3a9f3e321ce25,libscopeguard-7ec2214574194454,libdlopen2-a260dd58065cfc49,libcrossbeam_channel-5b5f5fcb8683302a,libcrossbeam_utils-ca54231108c39f35,libx11_dl-c0926a792338dd18,libgtk-d630556f592481cb,libfield_offset-5e1f4660a5e00765,libmemoffset-344b8ffdb269c81d,libgdk-fc8f611acc994ba5,libpango-6cd9206f7986f2e4,libgdk_pixbuf-5126860cf7315810,libgio-89303a606502b11b,libfutures_io-6a4719510b0746bc,libcairo-a8f38a276452a832,libatk-fd7e1827bd4cbd4b,libglib-0148793aa324fe56,libfutures_executor-8f4412b69f283e17,libmemchr-08f38e9718637002,libsmallvec-ffd6d3e2f5f8f424,libthiserror-c13b046a8de202c3,libfutures_util-ec3db12c28051c59,libslab-0a476b530f8e6631,libpin_project_lite-72bf04572caa1c84,libpin_utils-3860774ad9b215b5,libfutures_task-e09ab7898221cb97,libfutures_channel-bcaf6695731d86fd,libfutures_core-6189164566e294f9,libonce_cell-87ad594b4fdd0b3c,libgtk_sys-183f63c5d4240642,libatk_sys-2f0cf28616ce490a,libgdk_sys-5a9d4dc0bde59c42,libpango_sys-6dc4a673e9a233e6,libgdk_pixbuf_sys-79513ab963cda0d7,libgio_sys-ee38e10ceb809fa3,libcairo_sys-efc209a28895bcc1,libgobject_sys-d2818aab26aa9caa,libglib_sys-985f10dd1b67a6e6,liblibc-8e8176b617406ce8,libdpi-6c2f2aba4ca9eeb8,libraw_window_handle-633e2839334924d0,libbitflags-462d97ddd32b4ee6,libserde-49fba09af720c68c,liblog-ea7edc51f2e45fa1,liblazy_static-3674be3f4245d19b}.rlib" "/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lxdo" "-ldl" "-lgdk-3" "-lz" "-lpangocairo-1.0" "-lpango-1.0" "-lharfbuzz" "-lgdk_pixbuf-2.0" "-lcairo-gobject" "-lcairo" "-lgobject-2.0" "-lglib-2.0" "-ldl" "-lgobject-2.0" "-lgtk-3" "-lgdk-3" "-lz" "-lpangocairo-1.0" "-lpango-1.0" "-lharfbuzz" "-latk-1.0" "-lcairo-gobject" "-lcairo" "-lgdk_pixbuf-2.0" "-lgio-2.0" "-lgobject-2.0" "-lglib-2.0" "-latk-1.0" "-lgobject-2.0" "-lglib-2.0" "-lgdk-3" "-lz" "-lpangocairo-1.0" "-lpango-1.0" "-lharfbuzz" "-lgdk_pixbuf-2.0" "-lcairo-gobject" "-lcairo" "-lgobject-2.0" "-lglib-2.0" "-lpango-1.0" "-lgobject-2.0" "-lglib-2.0" "-lharfbuzz" "-lgdk_pixbuf-2.0" "-lgobject-2.0" "-lglib-2.0" "-lgio-2.0" "-lgobject-2.0" "-lglib-2.0" "-lcairo-gobject" "-lcairo" "-lgobject-2.0" "-lglib-2.0" "-lgobject-2.0" "-lglib-2.0" "-lgobject-2.0" "-lglib-2.0" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcFa12J5/raw-dylibs" "-B/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/monitor_sleep_toggle-4886b97d6f878ca9" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs" [INFO] [stdout] = note: some arguments are omitted. use `--verbose` to show all linker arguments [INFO] [stdout] = note: rust-lld: error: unable to find library -lxdo [INFO] [stdout] collect2: error: ld returned 1 exit status [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `monitor_sleep_toggle` (bin "monitor_sleep_toggle") due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "a3d598b2dec49739eae1afb4144c45af6bfbf5c7662ac2c819e5c9956c756b48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3d598b2dec49739eae1afb4144c45af6bfbf5c7662ac2c819e5c9956c756b48", kill_on_drop: false }` [INFO] [stdout] a3d598b2dec49739eae1afb4144c45af6bfbf5c7662ac2c819e5c9956c756b48