[INFO] fetching crate torsh-core 0.1.0-alpha.2... [INFO] checking torsh-core-0.1.0-alpha.2 against master#c9af9c1dc85a55e309345030ff9cb7ea247953fa for pr-151146 [INFO] extracting crate torsh-core 0.1.0-alpha.2 into /workspace/builds/worker-3-tc1/source [INFO] started tweaking crates.io crate torsh-core 0.1.0-alpha.2 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate torsh-core 0.1.0-alpha.2 [INFO] tweaked toml for crates.io crate torsh-core 0.1.0-alpha.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate torsh-core 0.1.0-alpha.2 on toolchain c9af9c1dc85a55e309345030ff9cb7ea247953fa [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate torsh-core 0.1.0-alpha.2 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" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ryu v1.0.21 [INFO] [stderr] Downloaded openblas-src v0.10.13 [INFO] [stderr] Downloaded ndarray-rand v0.16.0 [INFO] [stderr] Downloaded primal-check v0.3.4 [INFO] [stderr] Downloaded cached_proc_macro v0.25.0 [INFO] [stderr] Downloaded plotly_derive v0.13.5 [INFO] [stderr] Downloaded serde-wasm-bindgen v0.6.5 [INFO] [stderr] Downloaded lambert_w v1.2.33 [INFO] [stderr] Downloaded bzip2 v0.6.1 [INFO] [stderr] Downloaded cached v0.56.0 [INFO] [stderr] Downloaded zopfli v0.8.3 [INFO] [stderr] Downloaded ureq-proto v0.5.3 [INFO] [stderr] Downloaded zip v5.1.1 [INFO] [stderr] Downloaded ureq v3.1.4 [INFO] [stderr] Downloaded webpki-root-certs v1.0.4 [INFO] [stderr] Downloaded wide v1.1.0 [INFO] [stderr] Downloaded safe_arch v1.0.0 [INFO] [stderr] Downloaded lzma-rust2 v0.13.0 [INFO] [stderr] Downloaded zlib-rs v0.5.4 [INFO] [stderr] Downloaded qhull-sys v0.4.0 [INFO] [stderr] Downloaded serde-pickle v1.2.0 [INFO] [stderr] Downloaded rustfft v6.4.1 [INFO] [stderr] Downloaded ndarray v0.17.1 [INFO] [stderr] Downloaded libbz2-rs-sys v0.2.2 [INFO] [stderr] Downloaded ppmd-rust v1.3.0 [INFO] [stderr] Downloaded libz-rs-sys v0.5.4 [INFO] [stderr] Downloaded redox_syscall v0.6.0 [INFO] [stderr] Downloaded transpose v0.2.3 [INFO] [stderr] Downloaded qhull v0.4.0 [INFO] [stderr] Downloaded deflate64 v0.1.10 [INFO] [stderr] Downloaded openblas-build v0.10.13 [INFO] [stderr] Downloaded special v0.11.4 [INFO] [stderr] Downloaded iter-read v1.1.0 [INFO] [stderr] Downloaded scirs2-spatial v0.1.0-rc.4 [INFO] [stderr] Downloaded lax v0.18.0 [INFO] [stderr] Downloaded ndarray-linalg v0.18.0 [INFO] [stderr] Downloaded scirs2-ndimage v0.1.0-rc.2 [INFO] [stderr] Downloaded scirs2-special v0.1.0-rc.4 [INFO] [stderr] Downloaded numrs2 v0.1.0-rc.1 [INFO] [stderr] Downloaded scirs2-signal v0.1.0-rc.4 [INFO] [stderr] Downloaded scirs2-core v0.1.0-rc.4 [INFO] [stderr] Downloaded scirs2-stats v0.1.0-rc.4 [INFO] [stderr] Downloaded plotly v0.13.5 [INFO] [stderr] Downloaded cudnn-sys v0.0.3 [INFO] [stderr] Downloaded lapack-sys v0.15.0 [INFO] [stderr] Downloaded scirs2-fft v0.1.0-rc.4 [INFO] [stderr] Downloaded scirs2-linalg v0.1.0-rc.4 [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" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3dbbef0c46186ca1c4a1f3235c8373f6a295f83631f9ec6b1c88d4ef3cd4c778 [INFO] running `Command { std: "docker" "start" "-a" "3dbbef0c46186ca1c4a1f3235c8373f6a295f83631f9ec6b1c88d4ef3cd4c778", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3dbbef0c46186ca1c4a1f3235c8373f6a295f83631f9ec6b1c88d4ef3cd4c778", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3dbbef0c46186ca1c4a1f3235c8373f6a295f83631f9ec6b1c88d4ef3cd4c778", kill_on_drop: false }` [INFO] [stdout] 3dbbef0c46186ca1c4a1f3235c8373f6a295f83631f9ec6b1c88d4ef3cd4c778 [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" "+c9af9c1dc85a55e309345030ff9cb7ea247953fa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 38f4c72c93ea5042e831a8115e3efad0e72384b717964b53deabbbcb24779eb6 [INFO] running `Command { std: "docker" "start" "-a" "38f4c72c93ea5042e831a8115e3efad0e72384b717964b53deabbbcb24779eb6", kill_on_drop: false }` [INFO] [stderr] Compiling zerocopy v0.8.31 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling base64ct v1.8.1 [INFO] [stderr] Compiling jobserver v0.1.34 [INFO] [stderr] Checking getrandom v0.2.16 [INFO] [stderr] Compiling simd-adler32 v0.3.8 [INFO] [stderr] Compiling crc32fast v1.5.0 [INFO] [stderr] Compiling typenum v1.19.0 [INFO] [stderr] Compiling syn v2.0.111 [INFO] [stderr] Compiling anyhow v1.0.100 [INFO] [stderr] Compiling httparse v1.10.1 [INFO] [stderr] Compiling rustix v1.1.2 [INFO] [stderr] Compiling matrixmultiply v0.3.10 [INFO] [stderr] Compiling itoa v1.0.16 [INFO] [stderr] Compiling rustls-pki-types v1.13.2 [INFO] [stderr] Compiling filetime v0.2.26 [INFO] [stderr] Compiling pem-rfc7468 v0.7.0 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling dirs-sys v0.5.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Compiling miniz_oxide v0.8.9 [INFO] [stderr] Compiling http v1.4.0 [INFO] [stderr] Compiling der v0.7.10 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Checking ryu v1.0.21 [INFO] [stderr] Compiling cc v1.2.50 [INFO] [stderr] Compiling dirs v6.0.0 [INFO] [stderr] Compiling winapi v0.2.8 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Compiling flate2 v1.1.5 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Checking approx v0.5.1 [INFO] [stderr] Compiling zstd-safe v5.0.2+zstd.1.5.2 [INFO] [stderr] Compiling thread-id v2.0.0 [INFO] [stderr] Compiling memchr v0.1.11 [INFO] [stderr] Compiling webpki-root-certs v1.0.4 [INFO] [stderr] Compiling deranged v0.5.5 [INFO] [stderr] Compiling password-hash v0.4.2 [INFO] [stderr] Checking num-bigint v0.4.6 [INFO] [stderr] Compiling aho-corasick v0.5.3 [INFO] [stderr] Compiling thread_local v0.2.7 [INFO] [stderr] Compiling time v0.1.45 [INFO] [stderr] Compiling ureq-proto v0.5.3 [INFO] [stderr] Checking lapack-sys v0.15.0 [INFO] [stderr] Compiling num-iter v0.1.45 [INFO] [stderr] Compiling virtue v0.0.18 [INFO] [stderr] Compiling regex-syntax v0.3.9 [INFO] [stderr] Compiling num v0.1.43 [INFO] [stderr] Compiling utf8-ranges v0.1.3 [INFO] [stderr] Compiling clang-sys v1.8.1 [INFO] [stderr] Compiling chrono v0.2.25 [INFO] [stderr] Compiling crypto-common v0.1.7 [INFO] [stderr] Compiling block-buffer v0.10.4 [INFO] [stderr] Compiling inout v0.1.4 [INFO] [stderr] Checking safe_arch v1.0.0 [INFO] [stderr] Compiling digest v0.10.7 [INFO] [stderr] Compiling cipher v0.4.4 [INFO] [stderr] Checking crossbeam-channel v0.5.15 [INFO] [stderr] Compiling sha2 v0.10.9 [INFO] [stderr] Compiling hmac v0.12.1 [INFO] [stderr] Compiling sha1 v0.10.6 [INFO] [stderr] Compiling aes v0.8.4 [INFO] [stderr] Checking crossbeam-queue v0.3.12 [INFO] [stderr] Compiling bincode_derive v2.0.1 [INFO] [stderr] Compiling prettyplease v0.2.37 [INFO] [stderr] Compiling openssl-sys v0.9.111 [INFO] [stderr] Compiling zstd-sys v2.0.16+zstd.1.5.7 [INFO] [stderr] Compiling bzip2-sys v0.1.13+1.0.8 [INFO] [stderr] Compiling regex v0.1.80 [INFO] [stderr] Compiling scirs2-core v0.1.0-rc.4 [INFO] [stderr] Compiling constant_time_eq v0.1.5 [INFO] [stderr] Compiling pbkdf2 v0.11.0 [INFO] [stderr] Compiling lazy_static v0.1.16 [INFO] [stderr] Checking unty v0.0.4 [INFO] [stderr] Checking crossbeam v0.8.4 [INFO] [stderr] Compiling rustix v0.38.44 [INFO] [stderr] Compiling xattr v1.6.1 [INFO] [stderr] Checking wide v1.1.0 [INFO] [stderr] Checking uuid v1.19.0 [INFO] [stderr] Checking memmap2 v0.9.9 [INFO] [stderr] Checking num-rational v0.4.2 [INFO] [stderr] Compiling openssl v0.10.75 [INFO] [stderr] Compiling native-tls v0.2.14 [INFO] [stderr] Compiling either v1.15.0 [INFO] [stderr] Compiling regex-syntax v0.8.8 [INFO] [stderr] Compiling nom v7.1.3 [INFO] [stderr] Compiling time v0.3.44 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling tar v0.4.44 [INFO] [stderr] Compiling libloading v0.8.9 [INFO] [stderr] Compiling bindgen v0.69.5 [INFO] [stderr] Compiling home v0.5.12 [INFO] [stderr] Compiling itertools v0.12.1 [INFO] [stderr] Compiling bzip2 v0.4.4 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Checking tempfile v3.23.0 [INFO] [stderr] Compiling ftp v3.0.1 [INFO] [stderr] Compiling lazy_static v1.5.0 [INFO] [stderr] Compiling rustc-hash v1.1.0 [INFO] [stderr] Checking strength_reduce v0.2.4 [INFO] [stderr] Checking primal-check v0.3.4 [INFO] [stderr] Compiling lambert_w v1.2.33 [INFO] [stderr] Checking transpose v0.2.3 [INFO] [stderr] Compiling rustc-hash v2.1.1 [INFO] [stderr] Compiling regex-automata v0.4.13 [INFO] [stderr] Compiling erased-serde v0.4.9 [INFO] [stderr] Compiling basic-toml v0.1.10 [INFO] [stderr] Checking parking_lot_core v0.9.12 [INFO] [stderr] Checking percent-encoding v2.3.2 [INFO] [stderr] Checking zlib-rs v0.5.4 [INFO] [stderr] Checking hashbrown v0.15.5 [INFO] [stderr] Checking parking_lot v0.12.5 [INFO] [stderr] Checking crc v3.4.0 [INFO] [stderr] Checking env_logger v0.8.4 [INFO] [stderr] Compiling darling_core v0.21.3 [INFO] [stderr] Compiling darling_core v0.20.11 [INFO] [stderr] Checking signal-hook-registry v1.4.7 [INFO] [stderr] Checking bumpalo v3.19.1 [INFO] [stderr] Checking dyn-clone v1.0.20 [INFO] [stderr] Checking libbz2-rs-sys v0.2.2 [INFO] [stderr] Compiling which v4.4.2 [INFO] [stderr] Checking lzma-rust2 v0.13.0 [INFO] [stderr] Compiling cexpr v0.6.0 [INFO] [stderr] Checking zopfli v0.8.3 [INFO] [stderr] Checking libz-rs-sys v0.5.4 [INFO] [stderr] Checking pbkdf2 v0.12.2 [INFO] [stderr] Checking bzip2 v0.6.1 [INFO] [stderr] Checking csv-core v0.1.13 [INFO] [stderr] Checking ppmd-rust v1.3.0 [INFO] [stderr] Checking clap_lex v0.7.5 [INFO] [stderr] Checking anstyle v1.0.11 [INFO] [stderr] Checking iter-read v1.1.0 [INFO] [stderr] Checking deflate64 v0.1.10 [INFO] [stderr] Checking csv v1.4.0 [INFO] [stderr] Compiling libfuzzer-sys v0.4.10 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking clap_builder v4.5.53 [INFO] [stderr] Checking bit-vec v0.8.0 [INFO] [stderr] Checking rusty-fork v0.3.0 [INFO] [stderr] Compiling regex v1.12.2 [INFO] [stderr] Checking bit-set v0.8.0 [INFO] [stderr] Checking plotters v0.3.7 [INFO] [stderr] Checking rand_xorshift v0.4.0 [INFO] [stderr] Checking is-terminal v0.4.16 [INFO] [stderr] Checking unarray v0.1.4 [INFO] [stderr] Checking arbitrary v1.4.2 [INFO] [stderr] Compiling zerocopy-derive v0.8.31 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling thiserror-impl v2.0.17 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling katexit v0.1.5 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling zeroize_derive v1.4.2 [INFO] [stderr] Compiling serde_repr v0.1.20 [INFO] [stderr] Compiling tokio-macros v2.6.0 [INFO] [stderr] Compiling tracing-attributes v0.1.30 [INFO] [stderr] Compiling darling_macro v0.20.11 [INFO] [stderr] Checking clap v4.5.53 [INFO] [stderr] Compiling darling v0.20.11 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Compiling cached_proc_macro v0.25.0 [INFO] [stderr] Compiling num-derive v0.4.2 [INFO] [stderr] Checking zeroize v1.8.2 [INFO] [stderr] Compiling darling_macro v0.21.3 [INFO] [stderr] Checking tokio v1.48.0 [INFO] [stderr] Compiling darling v0.21.3 [INFO] [stderr] Compiling serde_with_macros v3.16.1 [INFO] [stderr] Compiling plotly_derive v0.13.5 [INFO] [stderr] Checking thiserror v1.0.69 [INFO] [stderr] Compiling thiserror v2.0.17 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking serde_with v3.16.1 [INFO] [stderr] Checking ppv-lite86 v0.2.21 [INFO] [stderr] Checking ahash v0.8.12 [INFO] [stderr] Checking cached v0.56.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Compiling ureq v3.1.4 [INFO] [stderr] Checking rand_chacha v0.9.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling askama_parser v0.14.0 [INFO] [stderr] Checking rand v0.9.2 [INFO] [stderr] Compiling zstd v0.11.2+zstd.1.5.2 [INFO] [stderr] Compiling zip v0.6.6 [INFO] [stderr] Checking chrono v0.4.42 [INFO] [stderr] Checking bincode v2.0.1 [INFO] [stderr] Checking num-complex v0.4.6 [INFO] [stderr] Checking rand_distr v0.4.3 [INFO] [stderr] Checking rand_distr v0.5.1 [INFO] [stderr] Compiling openblas-build v0.10.13 [INFO] [stderr] Checking ndarray v0.17.1 [INFO] [stderr] Checking simba v0.9.1 [INFO] [stderr] Checking cauchy v0.4.0 [INFO] [stderr] Compiling fftw-src v0.8.0 [INFO] [stderr] Checking half v2.7.1 [INFO] [stderr] Checking ndarray v0.15.6 [INFO] [stderr] Compiling zstd-safe v7.2.4 [INFO] [stderr] Checking rustfft v6.4.1 [INFO] [stderr] Checking num v0.4.3 [INFO] [stderr] Checking special v0.11.4 [INFO] [stderr] Checking quickcheck v1.0.3 [INFO] [stderr] Checking serde-pickle v1.2.0 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking zstd v0.13.3 [INFO] [stderr] Compiling openblas-src v0.10.13 [INFO] [stderr] Compiling qhull-sys v0.4.0 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Checking zip v5.1.1 [INFO] [stderr] Checking proptest v1.9.0 [INFO] [stderr] Checking ciborium v0.2.2 [INFO] [stderr] Checking lax v0.18.0 [INFO] [stderr] Compiling askama_derive v0.14.0 [INFO] [stderr] Checking criterion v0.5.1 [INFO] [stderr] Checking askama v0.14.0 [INFO] [stderr] Checking plotly v0.13.5 [INFO] [stderr] Checking nalgebra v0.33.2 [INFO] [stderr] Checking qhull v0.4.0 [INFO] [stderr] Checking ndarray-rand v0.16.0 [INFO] [stderr] Checking ndarray-linalg v0.18.0 [INFO] [stderr] Checking statrs v0.18.0 [INFO] [stderr] Checking scirs2-linalg v0.1.0-rc.4 [INFO] [stderr] Checking scirs2-special v0.1.0-rc.4 [INFO] [stderr] Checking scirs2-spatial v0.1.0-rc.4 [INFO] [stderr] Checking scirs2-stats v0.1.0-rc.4 [INFO] [stderr] Checking fftw-sys v0.8.0 [INFO] [stderr] Checking fftw v0.8.0 [INFO] [stderr] Checking scirs2-fft v0.1.0-rc.4 [INFO] [stderr] Checking scirs2-ndimage v0.1.0-rc.2 [INFO] [stderr] Checking scirs2-signal v0.1.0-rc.4 [INFO] [stderr] Checking numrs2 v0.1.0-rc.1 [INFO] [stderr] Checking torsh-core v0.1.0-alpha.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/backend_detection.rs:251:9 [INFO] [stdout] | [INFO] [stdout] 251 | unsafe { [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/backend_detection.rs:251:9 [INFO] [stdout] | [INFO] [stdout] 251 | unsafe { [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5m 16s [INFO] running `Command { std: "docker" "inspect" "38f4c72c93ea5042e831a8115e3efad0e72384b717964b53deabbbcb24779eb6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "38f4c72c93ea5042e831a8115e3efad0e72384b717964b53deabbbcb24779eb6", kill_on_drop: false }` [INFO] [stdout] 38f4c72c93ea5042e831a8115e3efad0e72384b717964b53deabbbcb24779eb6