[INFO] cloning repository https://github.com/hectorlorenzo/rust_git [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hectorlorenzo/rust_git" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhectorlorenzo%2Frust_git", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhectorlorenzo%2Frust_git'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6e8bba1461940dbcc20bc85347a0f18a2b7bd9e9 [INFO] checking hectorlorenzo/rust_git against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhectorlorenzo%2Frust_git" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hectorlorenzo/rust_git on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hectorlorenzo/rust_git [INFO] finished tweaking git repo https://github.com/hectorlorenzo/rust_git [INFO] tweaked toml for git repo https://github.com/hectorlorenzo/rust_git written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/hectorlorenzo/rust_git 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libc v0.2.133 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 353d2ce7ef3839a60c89ee7dd79bf75cf3603b92ebc56b95598b3f94aafc136c [INFO] running `Command { std: "docker" "start" "-a" "353d2ce7ef3839a60c89ee7dd79bf75cf3603b92ebc56b95598b3f94aafc136c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "353d2ce7ef3839a60c89ee7dd79bf75cf3603b92ebc56b95598b3f94aafc136c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "353d2ce7ef3839a60c89ee7dd79bf75cf3603b92ebc56b95598b3f94aafc136c", kill_on_drop: false }` [INFO] [stdout] 353d2ce7ef3839a60c89ee7dd79bf75cf3603b92ebc56b95598b3f94aafc136c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 62d4832d25de6e6a8b5ad2b41c9f26984d949bfa37ee395b04d75d96c586485c [INFO] running `Command { std: "docker" "start" "-a" "62d4832d25de6e6a8b5ad2b41c9f26984d949bfa37ee395b04d75d96c586485c", kill_on_drop: false }` [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Compiling generic-array v0.14.6 [INFO] [stderr] Compiling libc v0.2.133 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Checking once_cell v1.14.0 [INFO] [stderr] Checking cpufeatures v0.2.5 [INFO] [stderr] Checking miniz_oxide v0.5.4 [INFO] [stderr] Checking clap_lex v0.3.0 [INFO] [stderr] Checking configparser v3.0.2 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling clap_derive v4.0.18 [INFO] [stderr] Checking flate2 v1.0.24 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Checking block-buffer v0.10.3 [INFO] [stderr] Checking digest v0.10.5 [INFO] [stderr] Checking sha1 v0.10.5 [INFO] [stderr] Checking clap v4.0.18 [INFO] [stderr] Checking got v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/lib.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `git_object::GitObject` [INFO] [stdout] --> src/bin.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use git_object::GitObject; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `git_object::GitObject` [INFO] [stdout] --> src/bin.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use git_object::GitObject; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `object_type` [INFO] [stdout] --> src/bin.rs:76:13 [INFO] [stdout] | [INFO] [stdout] 76 | object_type, [INFO] [stdout] | ^^^^^^^^^^^ help: try ignoring the field: `object_type: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `type` [INFO] [stdout] --> src/bin.rs:95:13 [INFO] [stdout] | [INFO] [stdout] 95 | r#type, [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `type: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `write` [INFO] [stdout] --> src/bin.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | write, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `write: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `filepath` [INFO] [stdout] --> src/bin.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | filepath, [INFO] [stdout] | ^^^^^^^^ help: try ignoring the field: `filepath: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `kvlm_parser` is never used [INFO] [stdout] --> src/git_object.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn kvlm_parser<'a>( [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `kvlm_serialize` is never used [INFO] [stdout] --> src/git_object.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn kvlm_serialize(kvv: &Vec<(&str, String)>) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `type_string`, `content_with_headers`, `encoded_header`, and `hash` are never used [INFO] [stdout] --> src/git_object.rs:77:12 [INFO] [stdout] | [INFO] [stdout] 76 | impl GitObject { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 77 | pub fn new(type_str: &str, content: String) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 87 | pub fn type_string(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 105 | pub fn content_with_headers(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 109 | pub fn encoded_header(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn hash(&self) -> String { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `object_type` [INFO] [stdout] --> src/bin.rs:76:13 [INFO] [stdout] | [INFO] [stdout] 76 | object_type, [INFO] [stdout] | ^^^^^^^^^^^ help: try ignoring the field: `object_type: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `type` [INFO] [stdout] --> src/bin.rs:95:13 [INFO] [stdout] | [INFO] [stdout] 95 | r#type, [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `type: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `write` [INFO] [stdout] --> src/bin.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | write, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `write: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `filepath` [INFO] [stdout] --> src/bin.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | filepath, [INFO] [stdout] | ^^^^^^^^ help: try ignoring the field: `filepath: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `kvlm_parser` is never used [INFO] [stdout] --> src/git_object.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn kvlm_parser<'a>( [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `kvlm_serialize` is never used [INFO] [stdout] --> src/git_object.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn kvlm_serialize(kvv: &Vec<(&str, String)>) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `type_string`, `content_with_headers`, `encoded_header`, and `hash` are never used [INFO] [stdout] --> src/git_object.rs:77:12 [INFO] [stdout] | [INFO] [stdout] 76 | impl GitObject { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 77 | pub fn new(type_str: &str, content: String) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 87 | pub fn type_string(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 105 | pub fn content_with_headers(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 109 | pub fn encoded_header(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn hash(&self) -> String { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.91s [INFO] running `Command { std: "docker" "inspect" "62d4832d25de6e6a8b5ad2b41c9f26984d949bfa37ee395b04d75d96c586485c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "62d4832d25de6e6a8b5ad2b41c9f26984d949bfa37ee395b04d75d96c586485c", kill_on_drop: false }` [INFO] [stdout] 62d4832d25de6e6a8b5ad2b41c9f26984d949bfa37ee395b04d75d96c586485c [INFO] checking hectorlorenzo/rust_git against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhectorlorenzo%2Frust_git" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hectorlorenzo/rust_git on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hectorlorenzo/rust_git [INFO] finished tweaking git repo https://github.com/hectorlorenzo/rust_git [INFO] tweaked toml for git repo https://github.com/hectorlorenzo/rust_git written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/hectorlorenzo/rust_git 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4940b5bba1f5ee8c3ca5331d3dc24ed54085f4693f490b9b92457e11218b4bfd [INFO] running `Command { std: "docker" "start" "-a" "4940b5bba1f5ee8c3ca5331d3dc24ed54085f4693f490b9b92457e11218b4bfd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4940b5bba1f5ee8c3ca5331d3dc24ed54085f4693f490b9b92457e11218b4bfd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4940b5bba1f5ee8c3ca5331d3dc24ed54085f4693f490b9b92457e11218b4bfd", kill_on_drop: false }` [INFO] [stdout] 4940b5bba1f5ee8c3ca5331d3dc24ed54085f4693f490b9b92457e11218b4bfd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8ced5d0d5475193b0cf0bfe10696e828f7a89e2bc612444221b5e84179a3ba8d [INFO] running `Command { std: "docker" "start" "-a" "8ced5d0d5475193b0cf0bfe10696e828f7a89e2bc612444221b5e84179a3ba8d", kill_on_drop: false }` [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Compiling generic-array v0.14.6 [INFO] [stderr] Compiling libc v0.2.133 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Checking clap_lex v0.3.0 [INFO] [stderr] Checking miniz_oxide v0.5.4 [INFO] [stderr] Checking cpufeatures v0.2.5 [INFO] [stderr] Checking once_cell v1.14.0 [INFO] [stderr] Checking configparser v3.0.2 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling clap_derive v4.0.18 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/miniz_oxide-0.5.4/src/inflate/core.rs:1107:9 [INFO] [stdout] | [INFO] [stdout] 1107 | / match state { [INFO] [stdout] 1108 | | Start => generate_state!(state, 'state_machine, { [INFO] [stdout] 1109 | | l.bit_buf = 0; [INFO] [stdout] 1110 | | l.num_bits = 0; [INFO] [stdout] ... | [INFO] [stdout] 1639 | | _ => break TINFLStatus::Failed, [INFO] [stdout] 1640 | | }; [INFO] [stdout] | |_________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `miniz_oxide` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "8ced5d0d5475193b0cf0bfe10696e828f7a89e2bc612444221b5e84179a3ba8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ced5d0d5475193b0cf0bfe10696e828f7a89e2bc612444221b5e84179a3ba8d", kill_on_drop: false }` [INFO] [stdout] 8ced5d0d5475193b0cf0bfe10696e828f7a89e2bc612444221b5e84179a3ba8d