[INFO] fetching crate apalis-amqp 0.4.0-rc.1... [INFO] checking apalis-amqp-0.4.0-rc.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] extracting crate apalis-amqp 0.4.0-rc.1 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate apalis-amqp 0.4.0-rc.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate apalis-amqp 0.4.0-rc.1 [INFO] finished tweaking crates.io crate apalis-amqp 0.4.0-rc.1 [INFO] tweaked toml for crates.io crate apalis-amqp 0.4.0-rc.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--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] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 243 packages to latest compatible versions [INFO] [stderr] Adding addr2line v0.22.0 (latest: v0.24.1) [INFO] [stderr] Adding async-io v1.13.0 (latest: v2.3.4) [INFO] [stderr] Adding async-lock v2.8.0 (latest: v3.4.0) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.6.0) [INFO] [stderr] Adding core-foundation v0.9.4 (latest: v0.10.0) [INFO] [stderr] Adding deadpool v0.10.0 (latest: v0.12.1) [INFO] [stderr] Adding deadpool-lapin v0.11.0 (latest: v0.12.1) [INFO] [stderr] Adding event-listener v2.5.3 (latest: v5.3.1) [INFO] [stderr] Adding fastrand v1.9.0 (latest: v2.1.1) [INFO] [stderr] Adding futures-lite v1.13.0 (latest: v2.3.0) [INFO] [stderr] Adding generic-array v0.14.7 (latest: v1.1.0) [INFO] [stderr] Adding gimli v0.29.0 (latest: v0.31.0) [INFO] [stderr] Adding hermit-abi v0.3.9 (latest: v0.4.0) [INFO] [stderr] Adding idna v0.5.0 (latest: v1.0.2) [INFO] [stderr] Adding io-lifetimes v1.0.11 (latest: v2.0.3) [INFO] [stderr] Adding linux-raw-sys v0.3.8 (latest: v0.6.5) [INFO] [stderr] Adding linux-raw-sys v0.4.14 (latest: v0.6.5) [INFO] [stderr] Adding miniz_oxide v0.7.4 (latest: v0.8.0) [INFO] [stderr] Adding polling v2.8.0 (latest: v3.7.3) [INFO] [stderr] Adding rustix v0.37.27 (latest: v0.38.35) [INFO] [stderr] Adding rustls-connector v0.20.1 (latest: v0.21.4) [INFO] [stderr] Adding rustls-native-certs v0.7.3 (latest: v0.8.0) [INFO] [stderr] Adding socket2 v0.4.10 (latest: v0.5.7) [INFO] [stderr] Adding tcp-stream v0.28.0 (latest: v0.29.2) [INFO] [stderr] Adding tower v0.4.13 (latest: v0.5.0) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1) [INFO] [stderr] Adding windows-sys v0.48.0 (latest: v0.59.0) [INFO] [stderr] Adding windows-sys v0.52.0 (latest: v0.59.0) [INFO] [stderr] Adding windows-targets v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_i686_gnu v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_i686_msvc v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.6) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded socket2 v0.4.10 [INFO] [stderr] Downloaded executor-trait v2.1.0 [INFO] [stderr] Downloaded reactor-trait v1.1.0 [INFO] [stderr] Downloaded waker-fn v1.2.0 [INFO] [stderr] Downloaded async-io v1.13.0 [INFO] [stderr] Downloaded async-reactor-trait v1.1.0 [INFO] [stderr] Downloaded pinky-swear v6.2.0 [INFO] [stderr] Downloaded lapin v2.5.0 [INFO] [stderr] Downloaded async-stream-impl v0.3.5 [INFO] [stderr] Downloaded tokio-executor-trait v2.1.1 [INFO] [stderr] Downloaded amq-protocol-uri v7.2.1 [INFO] [stderr] Downloaded asn1-rs-derive v0.5.1 [INFO] [stderr] Downloaded async-channel v2.3.1 [INFO] [stderr] Downloaded async-global-executor v2.4.1 [INFO] [stderr] Downloaded synstructure v0.13.1 [INFO] [stderr] Downloaded apalis v0.6.0-rc.5 [INFO] [stderr] Downloaded web-time v1.1.0 [INFO] [stderr] Downloaded pkcs5 v0.7.1 [INFO] [stderr] Downloaded async-executor v1.13.0 [INFO] [stderr] Downloaded der-parser v9.0.0 [INFO] [stderr] Downloaded pkcs12 v0.1.0 [INFO] [stderr] Downloaded x509-cert v0.2.5 [INFO] [stderr] Downloaded asn1-rs v0.6.2 [INFO] [stderr] Downloaded x509-parser v0.16.0 [INFO] [stderr] Downloaded rustls-native-certs v0.7.3 [INFO] [stderr] Downloaded cms v0.2.3 [INFO] [stderr] Downloaded async-io v2.3.4 [INFO] [stderr] Downloaded event-listener v5.3.1 [INFO] [stderr] Downloaded data-encoding v2.6.0 [INFO] [stderr] Downloaded async-lock v3.4.0 [INFO] [stderr] Downloaded async-task v4.7.1 [INFO] [stderr] Downloaded futures-lite v2.3.0 [INFO] [stderr] Downloaded async-lock v2.8.0 [INFO] [stderr] Downloaded rustix v0.37.27 [INFO] [stderr] Downloaded polling v2.8.0 [INFO] [stderr] Downloaded io-lifetimes v1.0.11 [INFO] [stderr] Downloaded apalis-core v0.6.0-rc.5 [INFO] [stderr] Downloaded deadpool v0.10.0 [INFO] [stderr] Downloaded des v0.8.1 [INFO] [stderr] Downloaded der_derive v0.7.3 [INFO] [stderr] Downloaded oid-registry v0.7.1 [INFO] [stderr] Downloaded p12-keystore v0.1.3 [INFO] [stderr] Downloaded rustls-pemfile v2.1.3 [INFO] [stderr] Downloaded event-listener-strategy v0.5.2 [INFO] [stderr] Downloaded blocking v1.6.1 [INFO] [stderr] Downloaded futures-lite v1.13.0 [INFO] [stderr] Downloaded futures-micro v0.5.0 [INFO] [stderr] Downloaded async-oneshot v0.5.9 [INFO] [stderr] Downloaded ulid v1.1.3 [INFO] [stderr] Downloaded async-stream v0.3.5 [INFO] [stderr] Downloaded flagset v0.4.6 [INFO] [stderr] Downloaded rusticata-macros v4.1.0 [INFO] [stderr] Downloaded amq-protocol-types v7.2.1 [INFO] [stderr] Downloaded amq-protocol v7.2.1 [INFO] [stderr] Downloaded parking v2.2.0 [INFO] [stderr] Downloaded fastrand v1.9.0 [INFO] [stderr] Downloaded async-global-executor-trait v2.1.0 [INFO] [stderr] Downloaded deadpool-runtime v0.1.4 [INFO] [stderr] Downloaded deadpool-lapin v0.11.0 [INFO] [stderr] Downloaded rc2 v0.8.1 [INFO] [stderr] Downloaded asn1-rs-impl v0.2.0 [INFO] [stderr] Downloaded rustls-connector v0.20.1 [INFO] [stderr] Downloaded tcp-stream v0.28.0 [INFO] [stderr] Downloaded amq-protocol-tcp v7.2.1 [INFO] [stderr] Downloaded linux-raw-sys v0.3.8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 52bc830b3dce2d03df239c8dcc8440860e4da9a312b71107bd590f139cc3197b [INFO] running `Command { std: "docker" "start" "-a" "52bc830b3dce2d03df239c8dcc8440860e4da9a312b71107bd590f139cc3197b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "52bc830b3dce2d03df239c8dcc8440860e4da9a312b71107bd590f139cc3197b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52bc830b3dce2d03df239c8dcc8440860e4da9a312b71107bd590f139cc3197b", kill_on_drop: false }` [INFO] [stdout] 52bc830b3dce2d03df239c8dcc8440860e4da9a312b71107bd590f139cc3197b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 16c65b1bbf35d5dce3fbf79d907e1e8e91d3936d0daf5d5391da23651db2640c [INFO] running `Command { std: "docker" "start" "-a" "16c65b1bbf35d5dce3fbf79d907e1e8e91d3936d0daf5d5391da23651db2640c", kill_on_drop: false }` [INFO] [stderr] Compiling typenum v1.17.0 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Checking subtle v2.6.1 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Checking parking v2.2.0 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Checking zeroize v1.8.1 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking minimal-lexical v0.2.1 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking base64ct v1.6.0 [INFO] [stderr] Checking flagset v0.4.6 [INFO] [stderr] Checking powerfmt v0.2.0 [INFO] [stderr] Checking const-oid v0.9.6 [INFO] [stderr] Compiling time-core v0.1.2 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Compiling num-conv v0.1.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Compiling ring v0.17.8 [INFO] [stderr] Checking deranged v0.3.11 [INFO] [stderr] Checking pem-rfc7468 v0.7.0 [INFO] [stderr] Compiling time-macros v0.2.18 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Compiling serde v1.0.209 [INFO] [stderr] Checking rustls-pki-types v1.8.0 [INFO] [stderr] Compiling oid-registry v0.7.1 [INFO] [stderr] Checking untrusted v0.9.0 [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Checking mio v1.0.2 [INFO] [stderr] Checking base64 v0.22.1 [INFO] [stderr] Compiling rustls v0.23.12 [INFO] [stderr] Checking concurrent-queue v2.5.0 [INFO] [stderr] Checking bytes v1.7.1 [INFO] [stderr] Compiling rustix v0.38.35 [INFO] [stderr] Checking unicode-normalization v0.1.23 [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Checking linux-raw-sys v0.4.14 [INFO] [stderr] Checking event-listener v5.3.1 [INFO] [stderr] Checking rustls-pemfile v2.1.3 [INFO] [stderr] Checking data-encoding v2.6.0 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking unicode-bidi v0.3.15 [INFO] [stderr] Compiling io-lifetimes v1.0.11 [INFO] [stderr] Checking lazy_static v1.5.0 [INFO] [stderr] Checking openssl-probe v0.1.5 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Compiling polling v2.8.0 [INFO] [stderr] Checking async-task v4.7.1 [INFO] [stderr] Checking event-listener-strategy v0.5.2 [INFO] [stderr] Compiling rustix v0.37.27 [INFO] [stderr] Checking rustls-native-certs v0.7.3 [INFO] [stderr] Checking cookie-factory v0.3.3 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking num-bigint v0.4.6 [INFO] [stderr] Checking hex v0.4.3 [INFO] [stderr] Checking atomic-waker v1.1.2 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking idna v0.5.0 [INFO] [stderr] Checking piper v0.2.4 [INFO] [stderr] Checking async-channel v2.3.1 [INFO] [stderr] Checking async-lock v3.4.0 [INFO] [stderr] Compiling async-io v1.13.0 [INFO] [stderr] Checking linux-raw-sys v0.3.8 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking fastrand v1.9.0 [INFO] [stderr] Checking event-listener v2.5.3 [INFO] [stderr] Checking waker-fn v1.2.0 [INFO] [stderr] Checking blocking v1.6.1 [INFO] [stderr] Checking async-lock v2.8.0 [INFO] [stderr] Checking async-executor v1.13.0 [INFO] [stderr] Checking rusticata-macros v4.1.0 [INFO] [stderr] Checking futures-lite v1.13.0 [INFO] [stderr] Checking socket2 v0.4.10 [INFO] [stderr] Checking url v2.5.2 [INFO] [stderr] Compiling amq-protocol v7.2.1 [INFO] [stderr] Checking flume v0.11.0 [INFO] [stderr] Checking futures-micro v0.5.0 [INFO] [stderr] Compiling lapin v2.5.0 [INFO] [stderr] Checking tower-service v0.3.3 [INFO] [stderr] Checking tower-layer v0.3.3 [INFO] [stderr] Checking time v0.3.36 [INFO] [stderr] Checking async-oneshot v0.5.9 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Checking block-padding v0.3.3 [INFO] [stderr] Checking block-buffer v0.10.4 [INFO] [stderr] Checking inout v0.1.3 [INFO] [stderr] Checking digest v0.10.7 [INFO] [stderr] Checking cipher v0.4.4 [INFO] [stderr] Checking hmac v0.12.1 [INFO] [stderr] Checking sha2 v0.10.8 [INFO] [stderr] Checking sha1 v0.10.6 [INFO] [stderr] Checking pbkdf2 v0.12.2 [INFO] [stderr] Checking salsa20 v0.10.2 [INFO] [stderr] Checking aes v0.8.4 [INFO] [stderr] Checking cbc v0.1.2 [INFO] [stderr] Checking rc2 v0.8.1 [INFO] [stderr] Checking des v0.8.1 [INFO] [stderr] Checking scrypt v0.11.0 [INFO] [stderr] Compiling synstructure v0.13.1 [INFO] [stderr] Compiling thiserror-impl v1.0.63 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Compiling der_derive v0.7.3 [INFO] [stderr] Compiling serde_derive v1.0.209 [INFO] [stderr] Compiling asn1-rs-impl v0.2.0 [INFO] [stderr] Compiling asn1-rs-derive v0.5.1 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling async-trait v0.1.81 [INFO] [stderr] Compiling tokio-macros v2.4.0 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling pin-project-internal v1.1.5 [INFO] [stderr] Compiling async-stream-impl v0.3.5 [INFO] [stderr] Checking async-stream v0.3.5 [INFO] [stderr] Checking tokio v1.40.0 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking executor-trait v2.1.0 [INFO] [stderr] Checking reactor-trait v1.1.0 [INFO] [stderr] Checking der v0.7.9 [INFO] [stderr] Checking rustls-webpki v0.102.7 [INFO] [stderr] Checking thiserror v1.0.63 [INFO] [stderr] Checking async-reactor-trait v1.1.0 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking asn1-rs v0.6.2 [INFO] [stderr] Checking pin-project v1.1.5 [INFO] [stderr] Checking polling v3.7.3 [INFO] [stderr] Checking pinky-swear v6.2.0 [INFO] [stderr] Checking async-io v2.3.4 [INFO] [stderr] Checking ppv-lite86 v0.2.20 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking async-global-executor v2.4.1 [INFO] [stderr] Checking spki v0.7.3 [INFO] [stderr] Checking async-global-executor-trait v2.1.0 [INFO] [stderr] Checking x509-cert v0.2.5 [INFO] [stderr] Checking pkcs5 v0.7.1 [INFO] [stderr] Checking der-parser v9.0.0 [INFO] [stderr] Checking ulid v1.1.3 [INFO] [stderr] Checking x509-parser v0.16.0 [INFO] [stderr] Checking cms v0.2.3 [INFO] [stderr] Checking pkcs12 v0.1.0 [INFO] [stderr] Checking p12-keystore v0.1.3 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking rustls-connector v0.20.1 [INFO] [stderr] Checking tcp-stream v0.28.0 [INFO] [stderr] Checking serde_json v1.0.127 [INFO] [stderr] Checking deadpool-runtime v0.1.4 [INFO] [stderr] Checking tower v0.4.13 [INFO] [stderr] Checking tokio-executor-trait v2.1.1 [INFO] [stderr] Checking deadpool v0.10.0 [INFO] [stderr] Checking apalis-core v0.6.0-rc.5 [INFO] [stderr] Checking amq-protocol-types v7.2.1 [INFO] [stderr] Checking apalis v0.6.0-rc.5 [INFO] [stderr] Checking amq-protocol-uri v7.2.1 [INFO] [stderr] Checking amq-protocol-tcp v7.2.1 [INFO] [stderr] Checking deadpool-lapin v0.11.0 [INFO] [stderr] Checking apalis-amqp v0.4.0-rc.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.32s [INFO] running `Command { std: "docker" "inspect" "16c65b1bbf35d5dce3fbf79d907e1e8e91d3936d0daf5d5391da23651db2640c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16c65b1bbf35d5dce3fbf79d907e1e8e91d3936d0daf5d5391da23651db2640c", kill_on_drop: false }` [INFO] [stdout] 16c65b1bbf35d5dce3fbf79d907e1e8e91d3936d0daf5d5391da23651db2640c