[INFO] cloning repository https://github.com/niclim/rust-hn-client [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/niclim/rust-hn-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniclim%2Frust-hn-client", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniclim%2Frust-hn-client'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cb5f43ce11a4293c8985ffabe34d1dfe23e725d0 [INFO] testing niclim/rust-hn-client against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniclim%2Frust-hn-client" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/niclim/rust-hn-client on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/niclim/rust-hn-client [INFO] finished tweaking git repo https://github.com/niclim/rust-hn-client [INFO] tweaked toml for git repo https://github.com/niclim/rust-hn-client written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/niclim/rust-hn-client already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a2d60d709c2158a9235b6f1b670b378ab8afecf2459d61ae33623577a690e03d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a2d60d709c2158a9235b6f1b670b378ab8afecf2459d61ae33623577a690e03d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a2d60d709c2158a9235b6f1b670b378ab8afecf2459d61ae33623577a690e03d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2d60d709c2158a9235b6f1b670b378ab8afecf2459d61ae33623577a690e03d", kill_on_drop: false }` [INFO] [stdout] a2d60d709c2158a9235b6f1b670b378ab8afecf2459d61ae33623577a690e03d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ad50c1ee408d35311e9add358ba96e26173a7e44fb824c857a477de6126db726 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ad50c1ee408d35311e9add358ba96e26173a7e44fb824c857a477de6126db726", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.30 [INFO] [stderr] Compiling arc-swap v0.4.6 [INFO] [stderr] Compiling pin-project-lite v0.1.6 [INFO] [stderr] Compiling serde v1.0.111 [INFO] [stderr] Compiling encoding_rs v0.8.23 [INFO] [stderr] Compiling openssl-sys v0.9.57 [INFO] [stderr] Compiling quote v1.0.6 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling http-body v0.3.1 [INFO] [stderr] Compiling socket2 v0.3.12 [INFO] [stderr] Compiling signal-hook-registry v1.2.0 [INFO] [stderr] Compiling signal-hook v0.1.16 [INFO] [stderr] Compiling crossterm v0.17.5 [INFO] [stderr] Compiling openssl v0.10.29 [INFO] [stderr] Compiling native-tls v0.2.4 [INFO] [stderr] Compiling pin-project-internal v0.4.17 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Compiling futures-macro v0.3.5 [INFO] [stderr] Compiling serde_derive v1.0.111 [INFO] [stderr] Compiling tokio v0.2.21 [INFO] [stderr] Compiling pin-project v0.4.17 [INFO] [stderr] Compiling futures-util v0.3.5 [INFO] [stderr] Compiling tokio-util v0.3.1 [INFO] [stderr] Compiling tokio-tls v0.3.1 [INFO] [stderr] Compiling h2 v0.2.5 [INFO] [stderr] Compiling futures-executor v0.3.5 [INFO] [stderr] Compiling futures v0.3.5 [INFO] [stderr] Compiling hyper v0.13.6 [INFO] [stderr] Compiling serde_urlencoded v0.6.1 [INFO] [stderr] Compiling serde_json v1.0.53 [INFO] [stderr] Compiling hyper-tls v0.4.1 [INFO] [stderr] Compiling reqwest v0.10.6 [INFO] [stderr] Compiling rust-hn-client v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `post` [INFO] [stdout] --> src/main.rs:99:33 [INFO] [stdout] | [INFO] [stdout] 99 | Page::PostDetails { post, cursor_index } => { [INFO] [stdout] | ^^^^ help: try ignoring the field: `post: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cursor_index` [INFO] [stdout] --> src/main.rs:99:39 [INFO] [stdout] | [INFO] [stdout] 99 | Page::PostDetails { post, cursor_index } => { [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `cursor_index: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `post` [INFO] [stdout] --> src/stores/view.rs:97:33 [INFO] [stdout] | [INFO] [stdout] 97 | Page::PostDetails { post, cursor_index } => { [INFO] [stdout] | ^^^^ help: try ignoring the field: `post: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cursor_index` [INFO] [stdout] --> src/stores/view.rs:97:39 [INFO] [stdout] | [INFO] [stdout] 97 | Page::PostDetails { post, cursor_index } => { [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `cursor_index: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `columns` [INFO] [stdout] --> src/ui.rs:80:48 [INFO] [stdout] | [INFO] [stdout] 80 | pub fn print_post(w: &mut W, number: usize, columns: u16, post: &Post) -> CrossTermResult<()> [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_comment` [INFO] [stdout] --> src/stores/data.rs:77:12 [INFO] [stdout] | [INFO] [stdout] 77 | pub fn get_comment(&self, comment_id: &u32) -> Option<&Comment> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `New` [INFO] [stdout] --> src/stores/view.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | New, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Best` [INFO] [stdout] --> src/stores/view.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | Best, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `PostDetails` [INFO] [stdout] --> src/stores/view.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | / PostDetails { [INFO] [stdout] 21 | | post: u32, [INFO] [stdout] 22 | | cursor_index: u32, [INFO] [stdout] 23 | | }, [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `FetchComments` [INFO] [stdout] --> src/main.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | FetchComments { comment_ids: Vec }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 03s [INFO] running `Command { std: "docker" "inspect" "ad50c1ee408d35311e9add358ba96e26173a7e44fb824c857a477de6126db726", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ad50c1ee408d35311e9add358ba96e26173a7e44fb824c857a477de6126db726", kill_on_drop: false }` [INFO] [stdout] ad50c1ee408d35311e9add358ba96e26173a7e44fb824c857a477de6126db726 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d37b0aa394ee070c0cb67300904691c82439393979ace88739ca6dc4bbd52558 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d37b0aa394ee070c0cb67300904691c82439393979ace88739ca6dc4bbd52558", kill_on_drop: false }` [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Compiling colored v1.9.3 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.2 [INFO] [stderr] Compiling proc-macro-error v1.0.2 [INFO] [stderr] Compiling extend v0.1.2 [INFO] [stderr] Compiling assert-json-diff v1.0.3 [INFO] [stderr] Compiling mockito v0.25.2 [INFO] [stderr] Compiling rust-hn-client v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `post` [INFO] [stdout] --> src/main.rs:99:33 [INFO] [stdout] | [INFO] [stdout] 99 | Page::PostDetails { post, cursor_index } => { [INFO] [stdout] | ^^^^ help: try ignoring the field: `post: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cursor_index` [INFO] [stdout] --> src/main.rs:99:39 [INFO] [stdout] | [INFO] [stdout] 99 | Page::PostDetails { post, cursor_index } => { [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `cursor_index: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `post` [INFO] [stdout] --> src/stores/view.rs:97:33 [INFO] [stdout] | [INFO] [stdout] 97 | Page::PostDetails { post, cursor_index } => { [INFO] [stdout] | ^^^^ help: try ignoring the field: `post: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cursor_index` [INFO] [stdout] --> src/stores/view.rs:97:39 [INFO] [stdout] | [INFO] [stdout] 97 | Page::PostDetails { post, cursor_index } => { [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `cursor_index: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `columns` [INFO] [stdout] --> src/ui.rs:80:48 [INFO] [stdout] | [INFO] [stdout] 80 | pub fn print_post(w: &mut W, number: usize, columns: u16, post: &Post) -> CrossTermResult<()> [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `PostDetails` [INFO] [stdout] --> src/stores/view.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | / PostDetails { [INFO] [stdout] 21 | | post: u32, [INFO] [stdout] 22 | | cursor_index: u32, [INFO] [stdout] 23 | | }, [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `FetchComments` [INFO] [stdout] --> src/main.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | FetchComments { comment_ids: Vec }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 24.08s [INFO] running `Command { std: "docker" "inspect" "d37b0aa394ee070c0cb67300904691c82439393979ace88739ca6dc4bbd52558", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d37b0aa394ee070c0cb67300904691c82439393979ace88739ca6dc4bbd52558", kill_on_drop: false }` [INFO] [stdout] d37b0aa394ee070c0cb67300904691c82439393979ace88739ca6dc4bbd52558 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 5ecbc2e3d7d0358c436bf19bc76806c6b642e01ad6e6b8c8a9695cac5e76328e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "5ecbc2e3d7d0358c436bf19bc76806c6b642e01ad6e6b8c8a9695cac5e76328e", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `post` [INFO] [stderr] --> src/main.rs:99:33 [INFO] [stderr] | [INFO] [stderr] 99 | Page::PostDetails { post, cursor_index } => { [INFO] [stderr] | ^^^^ help: try ignoring the field: `post: _` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cursor_index` [INFO] [stderr] --> src/main.rs:99:39 [INFO] [stderr] | [INFO] [stderr] 99 | Page::PostDetails { post, cursor_index } => { [INFO] [stderr] | ^^^^^^^^^^^^ help: try ignoring the field: `cursor_index: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `post` [INFO] [stderr] --> src/stores/view.rs:97:33 [INFO] [stderr] | [INFO] [stderr] 97 | Page::PostDetails { post, cursor_index } => { [INFO] [stderr] | ^^^^ help: try ignoring the field: `post: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cursor_index` [INFO] [stderr] --> src/stores/view.rs:97:39 [INFO] [stderr] | [INFO] [stderr] 97 | Page::PostDetails { post, cursor_index } => { [INFO] [stderr] | ^^^^^^^^^^^^ help: try ignoring the field: `cursor_index: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `columns` [INFO] [stderr] --> src/ui.rs:80:48 [INFO] [stderr] | [INFO] [stderr] 80 | pub fn print_post(w: &mut W, number: usize, columns: u16, post: &Post) -> CrossTermResult<()> [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_columns` [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `PostDetails` [INFO] [stderr] --> src/stores/view.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | / PostDetails { [INFO] [stderr] 21 | | post: u32, [INFO] [stderr] 22 | | cursor_index: u32, [INFO] [stderr] 23 | | }, [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `FetchComments` [INFO] [stderr] --> src/main.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | FetchComments { comment_ids: Vec }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `rust-hn-client` (bin "rust-hn-client" test) generated 7 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.14s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_hn_client-1da43c2b1fec5ad3) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test stores::data::tests::data_store_posts ... ok [INFO] [stdout] test stores::data::tests::missing_post_and_comments ... ok [INFO] [stdout] test stores::data::tests::data_store_comments ... ok [INFO] [stdout] test hn_client::tests::get_top_post_ids ... ok [INFO] [stdout] test hn_client::tests::get_comments_returns_comments ... ok [INFO] [stdout] test hn_client::tests::get_top_stories_returns_posts ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.42s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "5ecbc2e3d7d0358c436bf19bc76806c6b642e01ad6e6b8c8a9695cac5e76328e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ecbc2e3d7d0358c436bf19bc76806c6b642e01ad6e6b8c8a9695cac5e76328e", kill_on_drop: false }` [INFO] [stdout] 5ecbc2e3d7d0358c436bf19bc76806c6b642e01ad6e6b8c8a9695cac5e76328e