[INFO] cloning repository https://github.com/himanoa/mdmg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/himanoa/mdmg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhimanoa%2Fmdmg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhimanoa%2Fmdmg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee233dd2ee09ecc369d2192afe8b9778aa5d898b
[INFO] testing himanoa/mdmg against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhimanoa%2Fmdmg" "/workspace/builds/worker-115/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-115/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/himanoa/mdmg on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/himanoa/mdmg
[INFO] finished tweaking git repo https://github.com/himanoa/mdmg
[INFO] tweaked toml for git repo https://github.com/himanoa/mdmg written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] crate git repo https://github.com/himanoa/mdmg already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b8897ed0e6e2228473d273e6a44f7eaee671aa57aab96b7ff916dda14c14b92
[INFO] running `Command { std: "docker" "start" "-a" "1b8897ed0e6e2228473d273e6a44f7eaee671aa57aab96b7ff916dda14c14b92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b8897ed0e6e2228473d273e6a44f7eaee671aa57aab96b7ff916dda14c14b92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b8897ed0e6e2228473d273e6a44f7eaee671aa57aab96b7ff916dda14c14b92", kill_on_drop: false }`
[INFO] [stdout] 1b8897ed0e6e2228473d273e6a44f7eaee671aa57aab96b7ff916dda14c14b92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68a187a1007b860b61f3122283e53d7805ea5c7f417253cd07520cb50fbdfeff
[INFO] running `Command { std: "docker" "start" "-a" "68a187a1007b860b61f3122283e53d7805ea5c7f417253cd07520cb50fbdfeff", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]    Compiling unchecked-index v0.2.2
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling entities v1.0.1
[INFO] [stderr]    Compiling shell-words v1.0.0
[INFO] [stderr]    Compiling typed-arena v1.7.0
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling twoway v0.2.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling xdg v2.4.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling comrak v0.11.0
[INFO] [stderr]    Compiling structopt v0.3.25
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling handlebars v4.1.3
[INFO] [stderr]    Compiling mdmg v0.1.2-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.87s
[INFO] running `Command { std: "docker" "inspect" "68a187a1007b860b61f3122283e53d7805ea5c7f417253cd07520cb50fbdfeff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68a187a1007b860b61f3122283e53d7805ea5c7f417253cd07520cb50fbdfeff", kill_on_drop: false }`
[INFO] [stdout] 68a187a1007b860b61f3122283e53d7805ea5c7f417253cd07520cb50fbdfeff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b8c73065dd0643f4d7211ad6df662a308972f2adbcd28fa3db79f9e0ef5c9c4
[INFO] running `Command { std: "docker" "start" "-a" "7b8c73065dd0643f4d7211ad6df662a308972f2adbcd28fa3db79f9e0ef5c9c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling pretty_assertions v1.0.0
[INFO] [stderr]    Compiling mdmg v0.1.2-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `var`
[INFO] [stdout]    --> src/template.rs:140:41
[INFO] [stdout]     |
[INFO] [stdout] 140 |     use std::env::{remove_var, set_var, var};
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_FSScaffoldExecutor_execute_is_created_files` should have a snake case name
[INFO] [stdout]   --> src/scaffold_executor.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn test_FSScaffoldExecutor_execute_is_created_files() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_fsscaffold_executor_execute_is_created_files`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `render_returning_the_FOO` should have a snake case name
[INFO] [stdout]    --> src/template.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn render_returning_the_FOO() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `render_returning_the_foo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_FSTemplateRepository_list_return_to_files` should have a snake case name
[INFO] [stdout]   --> src/template_repository.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn test_FSTemplateRepository_list_return_to_files() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_fstemplate_repository_list_return_to_files`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_FSTemplateRepository_resolve_return_to_TemplateIsNotFound` should have a snake case name
[INFO] [stdout]   --> src/template_repository.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn test_FSTemplateRepository_resolve_return_to_TemplateIsNotFound() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_fstemplate_repository_resolve_return_to_template_is_not_found`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_FSTemplateRepository_resolve_return_to_Template` should have a snake case name
[INFO] [stdout]   --> src/template_repository.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn test_FSTemplateRepository_resolve_return_to_Template() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_fstemplate_repository_resolve_return_to_template`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.26s
[INFO] running `Command { std: "docker" "inspect" "7b8c73065dd0643f4d7211ad6df662a308972f2adbcd28fa3db79f9e0ef5c9c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b8c73065dd0643f4d7211ad6df662a308972f2adbcd28fa3db79f9e0ef5c9c4", kill_on_drop: false }`
[INFO] [stdout] 7b8c73065dd0643f4d7211ad6df662a308972f2adbcd28fa3db79f9e0ef5c9c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5f13df53190595eb075b5125b80b72ac11860a4ac454924a328ef921e1e0159d
[INFO] running `Command { std: "docker" "start" "-a" "5f13df53190595eb075b5125b80b72ac11860a4ac454924a328ef921e1e0159d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `var`
[INFO] [stderr]    --> src/template.rs:140:41
[INFO] [stderr]     |
[INFO] [stderr] 140 |     use std::env::{remove_var, set_var, var};
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_FSScaffoldExecutor_execute_is_created_files` should have a snake case name
[INFO] [stderr]   --> src/scaffold_executor.rs:86:12
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn test_FSScaffoldExecutor_execute_is_created_files() {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_fsscaffold_executor_execute_is_created_files`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `render_returning_the_FOO` should have a snake case name
[INFO] [stderr]    --> src/template.rs:167:8
[INFO] [stderr]     |
[INFO] [stderr] 167 |     fn render_returning_the_FOO() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `render_returning_the_foo`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_FSTemplateRepository_list_return_to_files` should have a snake case name
[INFO] [stderr]   --> src/template_repository.rs:72:12
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn test_FSTemplateRepository_list_return_to_files() {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_fstemplate_repository_list_return_to_files`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_FSTemplateRepository_resolve_return_to_TemplateIsNotFound` should have a snake case name
[INFO] [stderr]   --> src/template_repository.rs:87:12
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn test_FSTemplateRepository_resolve_return_to_TemplateIsNotFound() {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_fstemplate_repository_resolve_return_to_template_is_not_found`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_FSTemplateRepository_resolve_return_to_Template` should have a snake case name
[INFO] [stderr]   --> src/template_repository.rs:95:12
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn test_FSTemplateRepository_resolve_return_to_Template() {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_fstemplate_repository_resolve_return_to_template`
[INFO] [stderr] 
[INFO] [stderr] warning: `mdmg` (lib test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.81s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mdmg-afd2abeccf4a9abf)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test scaffold_executor::tests::test_FSScaffoldExecutor_execute_is_created_files ... ignored
[INFO] [stdout] test template_repository::tests::test_FSTemplateRepository_list_return_to_files ... ignored
[INFO] [stdout] test template_repository::tests::test_FSTemplateRepository_resolve_return_to_Template ... ignored
[INFO] [stdout] test template_repository::tests::test_FSTemplateRepository_resolve_return_to_TemplateIsNotFound ... ignored
[INFO] [stdout] test template::tests::render_returning_the_variable ... ok
[INFO] [stdout] test template::tests::render_returning_the_FOO ... ok
[INFO] [stdout] test markdown::tests::parse_is_return_to_one_scaffold ... ok
[INFO] [stdout] test template::tests::render_returning_the_foo_adapter ... ok
[INFO] [stdout] test template::tests::render_returning_the_himanoa ... ok
[INFO] [stdout] test template::tests::render_returning_helper ... ok
[INFO] [stdout] test template::tests::render_returning_the_piyopoyo ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mdmg-e46e820c0c4fd704)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mdmg
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5f13df53190595eb075b5125b80b72ac11860a4ac454924a328ef921e1e0159d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f13df53190595eb075b5125b80b72ac11860a4ac454924a328ef921e1e0159d", kill_on_drop: false }`
[INFO] [stdout] 5f13df53190595eb075b5125b80b72ac11860a4ac454924a328ef921e1e0159d