[INFO] cloning repository https://github.com/realcundo/nu_plugin_dcm [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/realcundo/nu_plugin_dcm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealcundo%2Fnu_plugin_dcm", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealcundo%2Fnu_plugin_dcm'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b9f72a2d40cd5f46a884a79b36829b8250cef200 [INFO] testing realcundo/nu_plugin_dcm against master#0d13f6afeba4935499abe0c9a07426c94492c94e for pr-96025 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealcundo%2Fnu_plugin_dcm" "/workspace/builds/worker-17/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/realcundo/nu_plugin_dcm on toolchain 0d13f6afeba4935499abe0c9a07426c94492c94e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/realcundo/nu_plugin_dcm [INFO] finished tweaking git repo https://github.com/realcundo/nu_plugin_dcm [INFO] tweaked toml for git repo https://github.com/realcundo/nu_plugin_dcm written to /workspace/builds/worker-17/source/Cargo.toml [INFO] crate git repo https://github.com/realcundo/nu_plugin_dcm already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "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 sized-chunks v0.6.5 [INFO] [stderr] Downloaded syn v1.0.90 [INFO] [stderr] Downloaded adler32 v1.2.0 [INFO] [stderr] Downloaded deflate v0.8.6 [INFO] [stderr] Downloaded png v0.16.8 [INFO] [stderr] Downloaded safe-transmute v0.11.2 [INFO] [stderr] Downloaded im v15.0.0 [INFO] [stderr] Downloaded noisy_float v0.2.0 [INFO] [stderr] Downloaded ndarray-stats v0.5.0 [INFO] [stderr] Downloaded weezl v0.1.5 [INFO] [stderr] Downloaded color_quant v1.1.0 [INFO] [stderr] Downloaded byte-unit v4.0.14 [INFO] [stderr] Downloaded jpeg-decoder v0.1.22 [INFO] [stderr] Downloaded sys-locale v0.1.0 [INFO] [stderr] Downloaded quote v1.0.17 [INFO] [stderr] Downloaded encoding-index-japanese v1.20141219.5 [INFO] [stderr] Downloaded erased-serde v0.3.20 [INFO] [stderr] Downloaded encoding v0.2.33 [INFO] [stderr] Downloaded miette v4.3.0 [INFO] [stderr] Downloaded utf8-width v0.1.6 [INFO] [stderr] Downloaded ghost v0.1.2 [INFO] [stderr] Downloaded serde_test v1.0.136 [INFO] [stderr] Downloaded inventory v0.2.2 [INFO] [stderr] Downloaded encoding_index_tests v0.1.4 [INFO] [stderr] Downloaded miette-derive v4.3.0 [INFO] [stderr] Downloaded encoding-index-tradchinese v1.20141219.5 [INFO] [stderr] Downloaded cstr_core v0.2.5 [INFO] [stderr] Downloaded cty v0.2.2 [INFO] [stderr] Downloaded capnp v0.14.6 [INFO] [stderr] Downloaded encoding-index-korean v1.20141219.5 [INFO] [stderr] Downloaded gif v0.11.3 [INFO] [stderr] Downloaded byteordered v0.6.0 [INFO] [stderr] Downloaded encoding-index-singlebyte v1.20141219.5 [INFO] [stderr] Downloaded ndarray v0.15.4 [INFO] [stderr] Downloaded tiff v0.6.1 [INFO] [stderr] Downloaded encoding-index-simpchinese v1.20141219.5 [INFO] [stderr] Downloaded typetag-impl v0.1.8 [INFO] [stderr] Downloaded typetag v0.1.8 [INFO] [stderr] Downloaded nu-engine v0.60.0 [INFO] [stderr] Downloaded snafu-derive v0.7.0 [INFO] [stderr] Downloaded image v0.23.14 [INFO] [stderr] Downloaded nu-glob v0.60.0 [INFO] [stderr] Downloaded dicom-transfer-syntax-registry v0.5.0-rc.2 [INFO] [stderr] Downloaded nu-path v0.60.0 [INFO] [stderr] Downloaded dunce v1.0.2 [INFO] [stderr] Downloaded chrono-humanize v0.2.1 [INFO] [stderr] Downloaded dicom v0.5.0-rc.2 [INFO] [stderr] Downloaded nu-plugin v0.60.0 [INFO] [stderr] Downloaded nu-protocol v0.60.0 [INFO] [stderr] Downloaded dicom-parser v0.5.0-rc.2 [INFO] [stderr] Downloaded dicom-object v0.5.0-rc.2 [INFO] [stderr] Downloaded dicom-ul v0.4.0-rc.2 [INFO] [stderr] Downloaded dicom-core v0.5.0-rc.2 [INFO] [stderr] Downloaded dicom-encoding v0.5.0-rc.2 [INFO] [stderr] Downloaded nu-json v0.60.0 [INFO] [stderr] Downloaded snafu v0.7.0 [INFO] [stderr] Downloaded rand_xoshiro v0.4.0 [INFO] [stderr] Downloaded dicom-dictionary-std v0.5.0-rc.2 [INFO] [stderr] Downloaded dicom-pixeldata v0.1.0-rc.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4f3549c7eb0efe382edc3dbb9d4ac74e629847ab1f54aed05361502dfb560b3b [INFO] running `Command { std: "docker" "start" "-a" "4f3549c7eb0efe382edc3dbb9d4ac74e629847ab1f54aed05361502dfb560b3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4f3549c7eb0efe382edc3dbb9d4ac74e629847ab1f54aed05361502dfb560b3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f3549c7eb0efe382edc3dbb9d4ac74e629847ab1f54aed05361502dfb560b3b", kill_on_drop: false }` [INFO] [stdout] 4f3549c7eb0efe382edc3dbb9d4ac74e629847ab1f54aed05361502dfb560b3b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 45cdcd8c086ba1e5e5a84b9e2a896d3701ab5e161977a2893249102be217c4b8 [INFO] running `Command { std: "docker" "start" "-a" "45cdcd8c086ba1e5e5a84b9e2a896d3701ab5e161977a2893249102be217c4b8", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.90 [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling encoding_index_tests v0.1.4 [INFO] [stderr] Compiling unicode-segmentation v1.9.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling smallvec v1.8.0 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling safe-transmute v0.11.2 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Compiling hashbrown v0.11.2 [INFO] [stderr] Compiling serde_test v1.0.136 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Compiling cc v1.0.73 [INFO] [stderr] Compiling erased-serde v0.3.20 [INFO] [stderr] Compiling adler32 v1.2.0 [INFO] [stderr] Compiling adler v1.0.2 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling cty v0.2.2 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling weezl v0.1.5 [INFO] [stderr] Compiling ppv-lite86 v0.2.16 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling nodrop v0.1.14 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling utf8-width v0.1.6 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling unicode-width v0.1.9 [INFO] [stderr] Compiling itoa v1.0.1 [INFO] [stderr] Compiling color_quant v1.1.0 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling ryu v1.0.9 [INFO] [stderr] Compiling scoped_threadpool v0.1.9 [INFO] [stderr] Compiling dunce v1.0.2 [INFO] [stderr] Compiling bytemuck v1.9.1 [INFO] [stderr] Compiling nu-glob v0.60.0 [INFO] [stderr] Compiling capnp v0.14.6 [INFO] [stderr] Compiling encoding-index-tradchinese v1.20141219.5 [INFO] [stderr] Compiling encoding-index-simpchinese v1.20141219.5 [INFO] [stderr] Compiling encoding-index-korean v1.20141219.5 [INFO] [stderr] Compiling encoding-index-japanese v1.20141219.5 [INFO] [stderr] Compiling encoding-index-singlebyte v1.20141219.5 [INFO] [stderr] Compiling byte-unit v4.0.14 [INFO] [stderr] Compiling itertools v0.10.3 [INFO] [stderr] Compiling rand_xoshiro v0.4.0 [INFO] [stderr] Compiling miniz_oxide v0.3.7 [INFO] [stderr] Compiling byteordered v0.6.0 [INFO] [stderr] Compiling deflate v0.8.6 [INFO] [stderr] Compiling gif v0.11.3 [INFO] [stderr] Compiling matrixmultiply v0.3.2 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling crossbeam-epoch v0.9.8 [INFO] [stderr] Compiling indexmap v1.8.1 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Compiling im v15.0.0 [INFO] [stderr] Compiling encoding v0.2.33 [INFO] [stderr] Compiling crossbeam-channel v0.5.4 [INFO] [stderr] Compiling png v0.16.8 [INFO] [stderr] Compiling quote v1.0.17 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling cstr_core v0.2.5 [INFO] [stderr] Compiling sys-locale v0.1.0 [INFO] [stderr] Compiling num-format v0.4.0 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling num_cpus v1.13.1 [INFO] [stderr] Compiling getrandom v0.2.6 [INFO] [stderr] Compiling dirs-sys-next v0.1.2 [INFO] [stderr] Compiling crossbeam-deque v0.8.1 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling dirs-next v2.0.0 [INFO] [stderr] Compiling nu-path v0.60.0 [INFO] [stderr] Compiling bitmaps v2.1.0 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling num-complex v0.4.0 [INFO] [stderr] Compiling noisy_float v0.2.0 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling ndarray v0.15.4 [INFO] [stderr] Compiling sized-chunks v0.6.5 [INFO] [stderr] Compiling jpeg-decoder v0.1.22 [INFO] [stderr] Compiling ghost v0.1.2 [INFO] [stderr] Compiling ctor v0.1.22 [INFO] [stderr] Compiling snafu-derive v0.7.0 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Compiling typetag-impl v0.1.8 [INFO] [stderr] Compiling miette-derive v4.3.0 [INFO] [stderr] Compiling inventory v0.2.2 [INFO] [stderr] Compiling thiserror v1.0.30 [INFO] [stderr] Compiling tiff v0.6.1 [INFO] [stderr] Compiling miette v4.3.0 [INFO] [stderr] Compiling snafu v0.7.0 [INFO] [stderr] Compiling image v0.23.14 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling ndarray-stats v0.5.0 [INFO] [stderr] Compiling linked-hash-map v0.5.4 [INFO] [stderr] Compiling typetag v0.1.8 [INFO] [stderr] Compiling nu-json v0.60.0 [INFO] [stderr] Compiling dicom-core v0.5.0-rc.2 [INFO] [stderr] Compiling chrono-humanize v0.2.1 [INFO] [stderr] Compiling nu-protocol v0.60.0 [INFO] [stderr] Compiling dicom-dictionary-std v0.5.0-rc.2 [INFO] [stderr] Compiling dicom-encoding v0.5.0-rc.2 [INFO] [stderr] Compiling dicom-transfer-syntax-registry v0.5.0-rc.2 [INFO] [stderr] Compiling dicom-parser v0.5.0-rc.2 [INFO] [stderr] Compiling dicom-ul v0.4.0-rc.2 [INFO] [stderr] Compiling dicom-object v0.5.0-rc.2 [INFO] [stderr] Compiling nu-engine v0.60.0 [INFO] [stderr] Compiling dicom-pixeldata v0.1.0-rc.2 [INFO] [stderr] Compiling nu-plugin v0.60.0 [INFO] [stderr] Compiling dicom v0.5.0-rc.2 [INFO] [stderr] Compiling nu_plugin_dcm v0.1.5 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 47s [INFO] running `Command { std: "docker" "inspect" "45cdcd8c086ba1e5e5a84b9e2a896d3701ab5e161977a2893249102be217c4b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "45cdcd8c086ba1e5e5a84b9e2a896d3701ab5e161977a2893249102be217c4b8", kill_on_drop: false }` [INFO] [stdout] 45cdcd8c086ba1e5e5a84b9e2a896d3701ab5e161977a2893249102be217c4b8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f05bc32db2e94680748beffb8dc371a8bc565bf39a45d52d64080e5890ae06b4 [INFO] running `Command { std: "docker" "start" "-a" "f05bc32db2e94680748beffb8dc371a8bc565bf39a45d52d64080e5890ae06b4", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling nu_plugin_dcm v0.1.5 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1m 24s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/nu_plugin_dcm-68930d367be0972e) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/nu_plugin_dcm-801111f49da8d8d4) [INFO] [stderr] Executable tests/simple.rs (/opt/rustwide/target/debug/deps/simple-fd74b2c770d8457d) [INFO] running `Command { std: "docker" "inspect" "f05bc32db2e94680748beffb8dc371a8bc565bf39a45d52d64080e5890ae06b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f05bc32db2e94680748beffb8dc371a8bc565bf39a45d52d64080e5890ae06b4", kill_on_drop: false }` [INFO] [stdout] f05bc32db2e94680748beffb8dc371a8bc565bf39a45d52d64080e5890ae06b4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a37a5ffdd4a106fc479a5b7324b3ce9a0514d408d2c2897ba895e2fdb8aec6cc [INFO] running `Command { std: "docker" "start" "-a" "a37a5ffdd4a106fc479a5b7324b3ce9a0514d408d2c2897ba895e2fdb8aec6cc", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] running `Command { std: "docker" "inspect" "a37a5ffdd4a106fc479a5b7324b3ce9a0514d408d2c2897ba895e2fdb8aec6cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a37a5ffdd4a106fc479a5b7324b3ce9a0514d408d2c2897ba895e2fdb8aec6cc", kill_on_drop: false }` [INFO] [stdout] a37a5ffdd4a106fc479a5b7324b3ce9a0514d408d2c2897ba895e2fdb8aec6cc