[INFO] cloning repository https://github.com/Petezah/linkstation-monitor [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Petezah/linkstation-monitor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPetezah%2Flinkstation-monitor", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPetezah%2Flinkstation-monitor'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ec5ec81f7fa28fa68e3156c75bacd94a8c8517ef [INFO] checking Petezah/linkstation-monitor against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPetezah%2Flinkstation-monitor" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Petezah/linkstation-monitor on toolchain 5518eaa946291f00471af8b254b2a1715f234882 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config [INFO] started tweaking git repo https://github.com/Petezah/linkstation-monitor [INFO] finished tweaking git repo https://github.com/Petezah/linkstation-monitor [INFO] tweaked toml for git repo https://github.com/Petezah/linkstation-monitor written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Petezah/linkstation-monitor 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde_json v1.0.37 [INFO] [stderr] Downloaded env_logger v0.6.0 [INFO] [stderr] Downloaded memchr v2.1.3 [INFO] [stderr] Downloaded libc v0.2.48 [INFO] [stderr] Downloaded mqtt-protocol v0.6.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cd21f72d4f93e28b5cb1f9b7e571f3bdb9917f3fa0b2febcf4b442424afa0f68 [INFO] running `Command { std: "docker" "start" "-a" "cd21f72d4f93e28b5cb1f9b7e571f3bdb9917f3fa0b2febcf4b442424afa0f68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cd21f72d4f93e28b5cb1f9b7e571f3bdb9917f3fa0b2febcf4b442424afa0f68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd21f72d4f93e28b5cb1f9b7e571f3bdb9917f3fa0b2febcf4b442424afa0f68", kill_on_drop: false }` [INFO] [stdout] cd21f72d4f93e28b5cb1f9b7e571f3bdb9917f3fa0b2febcf4b442424afa0f68 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2ae0d626b0f666f46194016431ba3901581fc151251814c5e21ab1f21910694e [INFO] running `Command { std: "docker" "start" "-a" "2ae0d626b0f666f46194016431ba3901581fc151251814c5e21ab1f21910694e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling memchr v2.1.3 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Checking regex-syntax v0.6.5 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Checking regex-syntax v0.5.6 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking futures v0.1.25 [INFO] [stderr] Checking termcolor v1.0.4 [INFO] [stderr] Checking serde_json v1.0.37 [INFO] [stderr] Compiling serde_derive v1.0.85 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking humantime v1.2.0 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking bytes v0.4.11 [INFO] [stderr] Checking aho-corasick v0.6.9 [INFO] [stderr] Checking tokio-io v0.1.11 [INFO] [stderr] Checking scan_fmt v0.1.3 [INFO] [stderr] Checking mqtt-protocol v0.6.1 [INFO] [stderr] Checking env_logger v0.6.0 [INFO] [stderr] Checking linkstation-monitor v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.31s [INFO] running `Command { std: "docker" "inspect" "2ae0d626b0f666f46194016431ba3901581fc151251814c5e21ab1f21910694e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ae0d626b0f666f46194016431ba3901581fc151251814c5e21ab1f21910694e", kill_on_drop: false }` [INFO] [stdout] 2ae0d626b0f666f46194016431ba3901581fc151251814c5e21ab1f21910694e [INFO] checking Petezah/linkstation-monitor against try#7622c0f807a4e13c4db886a1681bf343795692df+rustflags=-Dnon_local_definitions for pr-120393 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPetezah%2Flinkstation-monitor" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Petezah/linkstation-monitor on toolchain 7622c0f807a4e13c4db886a1681bf343795692df [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config [INFO] started tweaking git repo https://github.com/Petezah/linkstation-monitor [INFO] finished tweaking git repo https://github.com/Petezah/linkstation-monitor [INFO] tweaked toml for git repo https://github.com/Petezah/linkstation-monitor written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Petezah/linkstation-monitor 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" "+7622c0f807a4e13c4db886a1681bf343795692df" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4d6190e4125094759e18086384b6b84954015a9ffe889b7e2b0d6dc1925beec5 [INFO] running `Command { std: "docker" "start" "-a" "4d6190e4125094759e18086384b6b84954015a9ffe889b7e2b0d6dc1925beec5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4d6190e4125094759e18086384b6b84954015a9ffe889b7e2b0d6dc1925beec5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d6190e4125094759e18086384b6b84954015a9ffe889b7e2b0d6dc1925beec5", kill_on_drop: false }` [INFO] [stdout] 4d6190e4125094759e18086384b6b84954015a9ffe889b7e2b0d6dc1925beec5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dnon_local_definitions" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1e1b1f6736c5dc86556ca2b6318545432526544703afa5f5edc74566bee0cef8 [INFO] running `Command { std: "docker" "start" "-a" "1e1b1f6736c5dc86556ca2b6318545432526544703afa5f5edc74566bee0cef8", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling memchr v2.1.3 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking futures v0.1.25 [INFO] [stderr] Checking regex-syntax v0.6.5 [INFO] [stderr] Checking regex-syntax v0.5.6 [INFO] [stderr] Checking termcolor v1.0.4 [INFO] [stderr] Checking serde_json v1.0.37 [INFO] [stderr] Compiling serde_derive v1.0.85 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking humantime v1.2.0 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking bytes v0.4.11 [INFO] [stderr] Checking aho-corasick v0.6.9 [INFO] [stderr] Checking tokio-io v0.1.11 [INFO] [stderr] Checking scan_fmt v0.1.3 [INFO] [stderr] Checking mqtt-protocol v0.6.1 [INFO] [stderr] Checking env_logger v0.6.0 [INFO] [stderr] Checking linkstation-monitor v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation [INFO] [stdout] --> src/config.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | #[derive(Serialize, Deserialize, Debug)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: move this `impl` block outside the of the current constant `_IMPL_SERIALIZE_FOR_Config` [INFO] [stdout] = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block [INFO] [stdout] = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue [INFO] [stdout] = note: requested on the command line with `-D non-local-definitions` [INFO] [stdout] = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation [INFO] [stdout] --> src/config.rs:6:21 [INFO] [stdout] | [INFO] [stdout] 6 | #[derive(Serialize, Deserialize, Debug)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: move this `impl` block outside the of the current constant `_IMPL_DESERIALIZE_FOR_Config` [INFO] [stdout] = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block [INFO] [stdout] = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue [INFO] [stdout] = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation [INFO] [stdout] --> src/config.rs:17:10 [INFO] [stdout] | [INFO] [stdout] 17 | #[derive(Serialize, Deserialize, Debug, Clone)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: move this `impl` block outside the of the current constant `_IMPL_SERIALIZE_FOR_FileMonitor` [INFO] [stdout] = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block [INFO] [stdout] = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue [INFO] [stdout] = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation [INFO] [stdout] --> src/config.rs:17:21 [INFO] [stdout] | [INFO] [stdout] 17 | #[derive(Serialize, Deserialize, Debug, Clone)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: move this `impl` block outside the of the current constant `_IMPL_DESERIALIZE_FOR_FileMonitor` [INFO] [stdout] = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block [INFO] [stdout] = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue [INFO] [stdout] = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation [INFO] [stdout] --> src/config.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | #[derive(Serialize, Deserialize, Debug)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: move this `impl` block outside the of the current constant `_IMPL_SERIALIZE_FOR_Config` [INFO] [stdout] = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block [INFO] [stdout] = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue [INFO] [stdout] = note: requested on the command line with `-D non-local-definitions` [INFO] [stdout] = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation [INFO] [stdout] --> src/config.rs:6:21 [INFO] [stdout] | [INFO] [stdout] 6 | #[derive(Serialize, Deserialize, Debug)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: move this `impl` block outside the of the current constant `_IMPL_DESERIALIZE_FOR_Config` [INFO] [stdout] = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block [INFO] [stdout] = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue [INFO] [stdout] = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation [INFO] [stdout] --> src/config.rs:17:10 [INFO] [stdout] | [INFO] [stdout] 17 | #[derive(Serialize, Deserialize, Debug, Clone)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: move this `impl` block outside the of the current constant `_IMPL_SERIALIZE_FOR_FileMonitor` [INFO] [stdout] = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block [INFO] [stdout] = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue [INFO] [stdout] = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: non-local `impl` definition, they should be avoided as they go against expectation [INFO] [stdout] --> src/config.rs:17:21 [INFO] [stdout] | [INFO] [stdout] 17 | #[derive(Serialize, Deserialize, Debug, Clone)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: move this `impl` block outside the of the current constant `_IMPL_DESERIALIZE_FOR_FileMonitor` [INFO] [stdout] = note: an `impl` definition is non-local if it is nested inside an item and neither the type nor the trait are at the same nesting level as the `impl` block [INFO] [stdout] = note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue [INFO] [stdout] = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `linkstation-monitor` (bin "linkstation-monitor") due to 5 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `linkstation-monitor` (bin "linkstation-monitor" test) due to 5 previous errors [INFO] running `Command { std: "docker" "inspect" "1e1b1f6736c5dc86556ca2b6318545432526544703afa5f5edc74566bee0cef8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e1b1f6736c5dc86556ca2b6318545432526544703afa5f5edc74566bee0cef8", kill_on_drop: false }` [INFO] [stdout] 1e1b1f6736c5dc86556ca2b6318545432526544703afa5f5edc74566bee0cef8