[INFO] cloning repository https://github.com/coreyja/domains [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/coreyja/domains" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoreyja%2Fdomains", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoreyja%2Fdomains'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0378716e13bf99be4fcc8d4969a5da1c07a0f5e7 [INFO] checking coreyja/domains against master#8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd for pr-150557 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoreyja%2Fdomains" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/coreyja/domains [INFO] finished tweaking git repo https://github.com/coreyja/domains [INFO] tweaked toml for git repo https://github.com/coreyja/domains written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/coreyja/domains on toolchain 8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/coreyja/domains 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" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating git repository `https://github.com/coreyja/coreyja.com` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded vergen v8.3.1 [INFO] [stderr] Downloaded gix-trace v0.1.9 [INFO] [stderr] Downloaded gix-path v0.10.7 [INFO] [stderr] Downloaded gix-validate v0.8.4 [INFO] [stderr] Downloaded gix-utils v0.1.12 [INFO] [stderr] Downloaded gix-url v0.26.1 [INFO] [stderr] Downloaded prodash v28.0.0 [INFO] [stderr] Downloaded sentry-contexts v0.32.3 [INFO] [stderr] Downloaded sentry-tower v0.31.8 [INFO] [stderr] Downloaded gix-index v0.28.2 [INFO] [stderr] Downloaded sentry v0.31.8 [INFO] [stderr] Downloaded sentry-panic v0.31.8 [INFO] [stderr] Downloaded gix-lock v12.0.1 [INFO] [stderr] Downloaded sentry-contexts v0.31.8 [INFO] [stderr] Downloaded opentelemetry-http v0.12.0 [INFO] [stderr] Downloaded sentry v0.32.3 [INFO] [stderr] Downloaded sentry-types v0.31.8 [INFO] [stderr] Downloaded sentry-types v0.32.3 [INFO] [stderr] Downloaded opentelemetry-proto v0.6.0 [INFO] [stderr] Downloaded opentelemetry v0.23.0 [INFO] [stderr] Downloaded ureq v2.9.7 [INFO] [stderr] Downloaded opentelemetry_sdk v0.23.0 [INFO] [stderr] Downloaded opentelemetry-proto v0.5.0 [INFO] [stderr] Downloaded tracing-opentelemetry v0.23.0 [INFO] [stderr] Downloaded opentelemetry_sdk v0.22.1 [INFO] [stderr] Downloaded opentelemetry v0.22.0 [INFO] [stderr] Downloaded gix-pack v0.46.1 [INFO] [stderr] Downloaded tracing-opentelemetry v0.24.0 [INFO] [stderr] Downloaded gix v0.57.1 [INFO] [stderr] Downloaded sentry-core v0.32.3 [INFO] [stderr] Downloaded gix-config v0.33.1 [INFO] [stderr] Downloaded gix-ref v0.40.1 [INFO] [stderr] Downloaded gix-odb v0.56.1 [INFO] [stderr] Downloaded clru v0.6.1 [INFO] [stderr] Downloaded gix-commitgraph v0.23.2 [INFO] [stderr] Downloaded gix-revision v0.25.1 [INFO] [stderr] Downloaded gix-tempfile v12.0.1 [INFO] [stderr] Downloaded gix-object v0.40.1 [INFO] [stderr] Downloaded flate2 v1.0.29 [INFO] [stderr] Downloaded opentelemetry-otlp v0.16.0 [INFO] [stderr] Downloaded sentry-core v0.31.8 [INFO] [stderr] Downloaded tracing-tree v0.2.5 [INFO] [stderr] Downloaded opentelemetry-semantic-conventions v0.14.0 [INFO] [stderr] Downloaded prost-derive v0.12.4 [INFO] [stderr] Downloaded prost v0.12.4 [INFO] [stderr] Downloaded opentelemetry-otlp v0.15.0 [INFO] [stderr] Downloaded security-framework-sys v2.10.0 [INFO] [stderr] Downloaded sentry-tracing v0.32.3 [INFO] [stderr] Downloaded rustls-pki-types v1.5.0 [INFO] [stderr] Downloaded sentry-tower v0.32.3 [INFO] [stderr] Downloaded tracing-tree v0.3.0 [INFO] [stderr] Downloaded unicode-bom v2.0.3 [INFO] [stderr] Downloaded gix-diff v0.39.1 [INFO] [stderr] Downloaded gix-bitmap v0.2.11 [INFO] [stderr] Downloaded gix-macros v0.1.4 [INFO] [stderr] Downloaded gix-revwalk v0.11.1 [INFO] [stderr] Downloaded gix-traverse v0.36.2 [INFO] [stderr] Downloaded sentry-backtrace v0.31.8 [INFO] [stderr] Downloaded opentelemetry-http v0.11.1 [INFO] [stderr] Downloaded gix-config-value v0.14.6 [INFO] [stderr] Downloaded gix-glob v0.15.1 [INFO] [stderr] Downloaded gix-date v0.8.5 [INFO] [stderr] Downloaded faster-hex v0.9.0 [INFO] [stderr] Downloaded sentry-tracing v0.31.8 [INFO] [stderr] Downloaded gix-refspec v0.21.1 [INFO] [stderr] Downloaded gix-fs v0.9.1 [INFO] [stderr] Downloaded gix-hashtable v0.5.2 [INFO] [stderr] Downloaded btoi v0.4.3 [INFO] [stderr] Downloaded gix-hash v0.14.2 [INFO] [stderr] Downloaded hostname v0.4.0 [INFO] [stderr] Downloaded gix-chunk v0.4.8 [INFO] [stderr] Downloaded gix-actor v0.29.1 [INFO] [stderr] Downloaded sentry-panic v0.32.3 [INFO] [stderr] Downloaded sentry-backtrace v0.32.3 [INFO] [stderr] Downloaded gix-discover v0.28.1 [INFO] [stderr] Downloaded gix-quote v0.4.12 [INFO] [stderr] Downloaded gix-sec v0.10.6 [INFO] [stderr] Downloaded gix-features v0.37.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 522f030090318b60d517f75055e020d323b4883095cd046dfb5ba6445bd234c6 [INFO] running `Command { std: "docker" "start" "-a" "522f030090318b60d517f75055e020d323b4883095cd046dfb5ba6445bd234c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "522f030090318b60d517f75055e020d323b4883095cd046dfb5ba6445bd234c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "522f030090318b60d517f75055e020d323b4883095cd046dfb5ba6445bd234c6", kill_on_drop: false }` [INFO] [stdout] 522f030090318b60d517f75055e020d323b4883095cd046dfb5ba6445bd234c6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d5f5f36f7f4614100cf52463503e2414b07f4ccff71a7c332084f001f541fbbe [INFO] running `Command { std: "docker" "start" "-a" "d5f5f36f7f4614100cf52463503e2414b07f4ccff71a7c332084f001f541fbbe", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.199 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Compiling cc v1.0.95 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Compiling ahash v0.8.11 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Compiling syn v2.0.60 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Compiling serde_json v1.0.116 [INFO] [stderr] Compiling getrandom v0.2.14 [INFO] [stderr] Checking unicode-bidi v0.3.15 [INFO] [stderr] Checking unicode-normalization v0.1.23 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling smallvec v1.13.2 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling regex-syntax v0.8.3 [INFO] [stderr] Compiling faster-hex v0.9.0 [INFO] [stderr] Compiling crc32fast v1.4.0 [INFO] [stderr] Compiling adler v1.0.2 [INFO] [stderr] Compiling gix-trace v0.1.9 [INFO] [stderr] Compiling miniz_oxide v0.7.2 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling sha1_smol v1.0.0 [INFO] [stderr] Compiling prodash v28.0.0 [INFO] [stderr] Checking parking_lot v0.12.2 [INFO] [stderr] Compiling walkdir v2.5.0 [INFO] [stderr] Compiling bitflags v2.5.0 [INFO] [stderr] Checking idna v0.5.0 [INFO] [stderr] Compiling allocator-api2 v0.2.18 [INFO] [stderr] Checking subtle v2.5.0 [INFO] [stderr] Compiling deranged v0.3.11 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Compiling num_threads v0.1.7 [INFO] [stderr] Compiling rustix v0.38.34 [INFO] [stderr] Compiling fastrand v2.1.0 [INFO] [stderr] Compiling flate2 v1.0.29 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling hashbrown v0.14.5 [INFO] [stderr] Compiling winnow v0.5.40 [INFO] [stderr] Compiling rustversion v1.0.15 [INFO] [stderr] Compiling memmap2 v0.9.4 [INFO] [stderr] Compiling ring v0.17.8 [INFO] [stderr] Compiling time v0.3.36 [INFO] [stderr] Compiling anyhow v1.0.82 [INFO] [stderr] Compiling signal-hook v0.3.17 [INFO] [stderr] Compiling signal-hook-registry v1.4.2 [INFO] [stderr] Compiling form_urlencoded v1.2.1 [INFO] [stderr] Compiling btoi v0.4.3 [INFO] [stderr] Checking http-body v1.0.0 [INFO] [stderr] Compiling block-buffer v0.10.4 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking sharded-slab v0.1.7 [INFO] [stderr] Compiling backtrace v0.3.71 [INFO] [stderr] Compiling gix-utils v0.1.12 [INFO] [stderr] Checking tracing-log v0.2.0 [INFO] [stderr] Compiling url v2.5.0 [INFO] [stderr] Checking gimli v0.28.1 [INFO] [stderr] Compiling digest v0.10.7 [INFO] [stderr] Checking indexmap v2.2.6 [INFO] [stderr] Checking ordered-float v4.2.0 [INFO] [stderr] Checking object v0.32.2 [INFO] [stderr] Compiling pin-project-lite v0.2.14 [INFO] [stderr] Compiling futures-core v0.3.30 [INFO] [stderr] Compiling tempfile v3.10.1 [INFO] [stderr] Checking http-body-util v0.1.1 [INFO] [stderr] Compiling mio v0.8.11 [INFO] [stderr] Compiling socket2 v0.5.6 [INFO] [stderr] Compiling futures-sink v0.3.30 [INFO] [stderr] Checking base64 v0.22.0 [INFO] [stderr] Compiling bytes v1.6.0 [INFO] [stderr] Checking rustls-pki-types v1.5.0 [INFO] [stderr] Compiling nom v7.1.3 [INFO] [stderr] Checking inout v0.1.3 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling tokio v1.37.0 [INFO] [stderr] Compiling log v0.4.21 [INFO] [stderr] Compiling cpufeatures v0.2.12 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Compiling futures-task v0.3.30 [INFO] [stderr] Compiling chrono v0.4.38 [INFO] [stderr] Compiling sha2 v0.10.8 [INFO] [stderr] Compiling crossbeam-queue v0.3.11 [INFO] [stderr] Compiling futures-util v0.3.30 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Checking cipher v0.4.4 [INFO] [stderr] Compiling rustls v0.21.12 [INFO] [stderr] Compiling futures-channel v0.3.30 [INFO] [stderr] Compiling futures-intrusive v0.5.0 [INFO] [stderr] Checking hmac v0.12.1 [INFO] [stderr] Checking addr2line v0.21.0 [INFO] [stderr] Compiling hashlink v0.8.4 [INFO] [stderr] Compiling axum-core v0.4.3 [INFO] [stderr] Compiling atoi v2.0.0 [INFO] [stderr] Checking universal-hash v0.5.1 [INFO] [stderr] Compiling gix-sec v0.10.6 [INFO] [stderr] Checking uname v0.1.1 [INFO] [stderr] Checking sct v0.7.1 [INFO] [stderr] Checking rustls-webpki v0.101.7 [INFO] [stderr] Compiling uuid v1.8.0 [INFO] [stderr] Compiling finl_unicode v1.2.0 [INFO] [stderr] Compiling unicode-segmentation v1.11.0 [INFO] [stderr] Compiling rustls v0.22.4 [INFO] [stderr] Compiling clru v0.6.1 [INFO] [stderr] Compiling bstr v1.9.1 [INFO] [stderr] Compiling stringprep v0.1.4 [INFO] [stderr] Checking polyval v0.6.2 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Checking rustls-webpki v0.102.3 [INFO] [stderr] Compiling hkdf v0.12.4 [INFO] [stderr] Compiling md-5 v0.10.6 [INFO] [stderr] Compiling filetime v0.2.23 [INFO] [stderr] Compiling unicode-bom v2.0.3 [INFO] [stderr] Checking match_cfg v0.1.0 [INFO] [stderr] Compiling whoami v1.5.1 [INFO] [stderr] Checking zeroize v1.7.0 [INFO] [stderr] Checking iana-time-zone v0.1.60 [INFO] [stderr] Compiling arc-swap v1.7.1 [INFO] [stderr] Checking hostname v0.3.1 [INFO] [stderr] Checking ghash v0.5.1 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking ctr v0.9.2 [INFO] [stderr] Checking aes v0.8.4 [INFO] [stderr] Checking crossbeam-channel v0.5.12 [INFO] [stderr] Compiling vergen v8.3.1 [INFO] [stderr] Checking aead v0.5.2 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling cookie v0.18.1 [INFO] [stderr] error: could not compile `regex-automata` (lib) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/bin/rustc --crate-name regex_automata --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-automata-0.4.6/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="alloc"' --cfg 'feature="dfa-onepass"' --cfg 'feature="dfa-search"' --cfg 'feature="hybrid"' --cfg 'feature="meta"' --cfg 'feature="nfa-backtrack"' --cfg 'feature="nfa-pikevm"' --cfg 'feature="nfa-thompson"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="perf-literal-multisubstring"' --cfg 'feature="perf-literal-substring"' --cfg 'feature="std"' --cfg 'feature="syntax"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' --cfg 'feature="unicode-word-boundary"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "dfa", "dfa-build", "dfa-onepass", "dfa-search", "hybrid", "internal-instrument", "internal-instrument-pikevm", "logging", "meta", "nfa", "nfa-backtrack", "nfa-pikevm", "nfa-thompson", "perf", "perf-inline", "perf-literal", "perf-literal-multisubstring", "perf-literal-substring", "std", "syntax", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment", "unicode-word-boundary"))' -C metadata=2c14620123877448 -C extra-filename=-a8ead0aff7b3f7f8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-df3396746c9b0a69.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-f6d3a80039506637.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-865b77df6a20aea4.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: could not compile `syn` (lib) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/8c52f735abd1af9a73941b78fe7ed2ab08b9c0dd/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.60/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-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=4e50f2b760b6d553 -C extra-filename=-5a8f182008e41a09 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-0b8d9fbac46dbf3b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-6799a93556b01fd3.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-f2de522ba645d884.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill) [INFO] running `Command { std: "docker" "inspect" "d5f5f36f7f4614100cf52463503e2414b07f4ccff71a7c332084f001f541fbbe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5f5f36f7f4614100cf52463503e2414b07f4ccff71a7c332084f001f541fbbe", kill_on_drop: false }` [INFO] [stdout] d5f5f36f7f4614100cf52463503e2414b07f4ccff71a7c332084f001f541fbbe