[INFO] cloning repository https://github.com/RammeDon/DS-Project
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RammeDon/DS-Project" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRammeDon%2FDS-Project", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRammeDon%2FDS-Project'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8ae71466e8f6f3993a93d70bc81442335d0e675
[INFO] checking RammeDon/DS-Project against master#2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a for pr-145113
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRammeDon%2FDS-Project" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/RammeDon/DS-Project
[INFO] finished tweaking git repo https://github.com/RammeDon/DS-Project
[INFO] tweaked toml for git repo https://github.com/RammeDon/DS-Project written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RammeDon/DS-Project on toolchain 2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/RammeDon/DS-Project 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" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/haraldng/omnipaxos.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 118 packages to latest compatible versions
[INFO] [stderr]       Adding allocator-api2 v0.2.21
[INFO] [stderr]       Adding atoi v2.0.0
[INFO] [stderr]       Adding base64ct v1.8.0
[INFO] [stderr]       Adding const-oid v0.9.6
[INFO] [stderr]       Adding crc v3.3.0
[INFO] [stderr]       Adding crc-catalog v2.4.0
[INFO] [stderr]       Adding crossbeam-queue v0.3.12
[INFO] [stderr]       Adding crossbeam-utils v0.8.21
[INFO] [stderr]       Adding der v0.7.10
[INFO] [stderr]       Adding displaydoc v0.2.5
[INFO] [stderr]       Adding dotenvy v0.15.7
[INFO] [stderr]       Adding either v1.15.0
[INFO] [stderr]       Adding errno v0.3.13
[INFO] [stderr]       Adding etcetera v0.8.0
[INFO] [stderr]       Adding event-listener v2.5.3
[INFO] [stderr]       Adding fastrand v2.3.0
[INFO] [stderr]       Adding flume v0.11.1
[INFO] [stderr]       Adding form_urlencoded v1.2.1
[INFO] [stderr]       Adding futures-intrusive v0.5.0
[INFO] [stderr]       Adding getrandom v0.3.3
[INFO] [stderr]       Adding hashlink v0.8.4
[INFO] [stderr]       Adding heck v0.4.1
[INFO] [stderr]       Adding hex v0.4.3
[INFO] [stderr]       Adding hkdf v0.12.4
[INFO] [stderr]       Adding hmac v0.12.1
[INFO] [stderr]       Adding home v0.5.11
[INFO] [stderr]       Adding icu_collections v2.0.0
[INFO] [stderr]       Adding icu_locale_core v2.0.0
[INFO] [stderr]       Adding icu_normalizer v2.0.0
[INFO] [stderr]       Adding icu_normalizer_data v2.0.0
[INFO] [stderr]       Adding icu_properties v2.0.1
[INFO] [stderr]       Adding icu_properties_data v2.0.1
[INFO] [stderr]       Adding icu_provider v2.0.0
[INFO] [stderr]       Adding idna v1.0.3
[INFO] [stderr]       Adding idna_adapter v1.2.1
[INFO] [stderr]       Adding lazy_static v1.5.0
[INFO] [stderr]       Adding libm v0.2.15
[INFO] [stderr]       Adding libsqlite3-sys v0.27.0
[INFO] [stderr]       Adding linux-raw-sys v0.9.4
[INFO] [stderr]       Adding litemap v0.8.0
[INFO] [stderr]       Adding md-5 v0.10.6
[INFO] [stderr]       Adding minimal-lexical v0.2.1
[INFO] [stderr]       Adding nom v7.1.3
[INFO] [stderr]       Adding num-bigint-dig v0.8.4
[INFO] [stderr]       Adding num-iter v0.1.45
[INFO] [stderr]       Adding paste v1.0.15
[INFO] [stderr]       Adding pem-rfc7468 v0.7.0
[INFO] [stderr]       Adding percent-encoding v2.3.1
[INFO] [stderr]       Adding pkcs1 v0.7.5
[INFO] [stderr]       Adding pkcs8 v0.10.2
[INFO] [stderr]       Adding pkg-config v0.3.32
[INFO] [stderr]       Adding potential_utf v0.1.2
[INFO] [stderr]       Adding r-efi v5.3.0
[INFO] [stderr]       Adding ring v0.17.14
[INFO] [stderr]       Adding rsa v0.9.8
[INFO] [stderr]       Adding rustix v1.0.8
[INFO] [stderr]       Adding rustls v0.21.12
[INFO] [stderr]       Adding rustls-pemfile v1.0.4
[INFO] [stderr]       Adding rustls-webpki v0.101.7
[INFO] [stderr]       Adding sct v0.7.1
[INFO] [stderr]       Adding sha1 v0.10.6
[INFO] [stderr]       Adding signature v2.2.0
[INFO] [stderr]       Adding spin v0.9.8
[INFO] [stderr]       Adding spki v0.7.3
[INFO] [stderr]       Adding sqlformat v0.2.6
[INFO] [stderr]       Adding sqlx v0.7.4 (available: v0.8.6)
[INFO] [stderr]       Adding sqlx-core v0.7.4
[INFO] [stderr]       Adding sqlx-macros v0.7.4
[INFO] [stderr]       Adding sqlx-macros-core v0.7.4
[INFO] [stderr]       Adding sqlx-mysql v0.7.4
[INFO] [stderr]       Adding sqlx-postgres v0.7.4
[INFO] [stderr]       Adding sqlx-sqlite v0.7.4
[INFO] [stderr]       Adding stable_deref_trait v1.2.0
[INFO] [stderr]       Adding stringprep v0.1.5
[INFO] [stderr]       Adding subtle v2.6.1
[INFO] [stderr]       Adding synstructure v0.13.2
[INFO] [stderr]       Adding tempfile v3.20.0
[INFO] [stderr]       Adding thiserror v1.0.69
[INFO] [stderr]       Adding thiserror-impl v1.0.69
[INFO] [stderr]       Adding tinystr v0.8.1
[INFO] [stderr]       Adding tinyvec v1.9.0
[INFO] [stderr]       Adding tinyvec_macros v0.1.1
[INFO] [stderr]       Adding tokio-stream v0.1.17
[INFO] [stderr]       Adding tracing v0.1.41
[INFO] [stderr]       Adding tracing-attributes v0.1.30
[INFO] [stderr]       Adding tracing-core v0.1.34
[INFO] [stderr]       Adding unicode-bidi v0.3.18
[INFO] [stderr]       Adding unicode-normalization v0.1.24
[INFO] [stderr]       Adding unicode-properties v0.1.3
[INFO] [stderr]       Adding unicode_categories v0.1.1
[INFO] [stderr]       Adding untrusted v0.9.0
[INFO] [stderr]       Adding url v2.5.4
[INFO] [stderr]       Adding urlencoding v2.1.3
[INFO] [stderr]       Adding utf8_iter v1.0.4
[INFO] [stderr]       Adding vcpkg v0.2.15
[INFO] [stderr]       Adding wasi v0.14.2+wasi-0.2.4
[INFO] [stderr]       Adding wasite v0.1.0
[INFO] [stderr]       Adding webpki-roots v0.25.4
[INFO] [stderr]       Adding whoami v1.6.0
[INFO] [stderr]       Adding windows-sys v0.48.0
[INFO] [stderr]       Adding windows-targets v0.48.5
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5
[INFO] [stderr]       Adding wit-bindgen-rt v0.39.0
[INFO] [stderr]       Adding writeable v0.6.1
[INFO] [stderr]       Adding yoke v0.8.0
[INFO] [stderr]       Adding yoke-derive v0.8.0
[INFO] [stderr]       Adding zerofrom v0.1.6
[INFO] [stderr]       Adding zerofrom-derive v0.1.6
[INFO] [stderr]       Adding zeroize v1.8.1
[INFO] [stderr]       Adding zerotrie v0.2.2
[INFO] [stderr]       Adding zerovec v0.11.4
[INFO] [stderr]       Adding zerovec-derive v0.11.1
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded config v0.15.8
[INFO] [stderr]   Downloaded yaml-rust2 v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ece33c690fe701fa4ba2e255fb93d106ce343635091d08ee1e430f7a781e7eb3
[INFO] running `Command { std: "docker" "start" "-a" "ece33c690fe701fa4ba2e255fb93d106ce343635091d08ee1e430f7a781e7eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ece33c690fe701fa4ba2e255fb93d106ce343635091d08ee1e430f7a781e7eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ece33c690fe701fa4ba2e255fb93d106ce343635091d08ee1e430f7a781e7eb3", kill_on_drop: false }`
[INFO] [stdout] ece33c690fe701fa4ba2e255fb93d106ce343635091d08ee1e430f7a781e7eb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7e13d6911972a7278baa088789efd729d151e12bc95776269a2ce5fedcbb4ac
[INFO] running `Command { std: "docker" "start" "-a" "d7e13d6911972a7278baa088789efd729d151e12bc95776269a2ce5fedcbb4ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
[INFO] [stderr]    Compiling icu_properties_data v2.0.1
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling cc v1.2.12
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling writeable v0.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling litemap v0.8.0
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]    Compiling serde_json v1.0.138
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling untrusted v0.9.0
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling utf8_iter v1.0.4
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]     Checking bytes v1.10.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]     Checking indexmap v2.7.1
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling tinyvec v1.9.0
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.8
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling ryu v1.0.19
[INFO] [stderr]    Compiling bitflags v2.8.0
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling log v0.4.25
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling base64 v0.21.7
[INFO] [stderr]    Compiling tokio v1.43.0
[INFO] [stderr]    Compiling cpufeatures v0.2.17
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling crc v3.3.0
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.24
[INFO] [stderr]    Compiling futures-intrusive v0.5.0
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling webpki-roots v0.25.4
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling unicode-bidi v0.3.18
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling unicode-properties v0.1.3
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]    Compiling hkdf v0.12.4
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stderr]    Compiling stringprep v0.1.5
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling sqlformat v0.2.6
[INFO] [stderr]    Compiling whoami v1.6.0
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling dotenvy v0.15.7
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]    Compiling home v0.5.11
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]     Checking dlv-list v0.5.2
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking winnow v0.7.1
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]     Checking arraydeque v0.5.1
[INFO] [stderr]     Checking trim-in-place v0.1.7
[INFO] [stderr]     Checking convert_case v0.6.0
[INFO] [stderr]     Checking is-terminal v0.4.15
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking pathdiff v0.2.3
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[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/2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a/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=5d05daf318e3d778 -C extra-filename=-b4a81243d07e427b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ba1164ef8c5072f6.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-45812ef4b8688a30.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-a3690edd3a41f0e2.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" "d7e13d6911972a7278baa088789efd729d151e12bc95776269a2ce5fedcbb4ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7e13d6911972a7278baa088789efd729d151e12bc95776269a2ce5fedcbb4ac", kill_on_drop: false }`
[INFO] [stdout] d7e13d6911972a7278baa088789efd729d151e12bc95776269a2ce5fedcbb4ac