[INFO] fetching crate gosh-database 0.2.0...
[INFO] checking gosh-database-0.2.0 against master#c3def263a44e07e09ae6d57abfc8650227fb4972 for pr-118920
[INFO] extracting crate gosh-database 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate gosh-database 0.2.0 on toolchain c3def263a44e07e09ae6d57abfc8650227fb4972
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gosh-database 0.2.0
[INFO] finished tweaking crates.io crate gosh-database 0.2.0
[INFO] tweaked toml for crates.io crate gosh-database 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slug v0.1.5
[INFO] [stderr]   Downloaded wide v0.7.13
[INFO] [stderr]   Downloaded chrono-tz-build v0.2.1
[INFO] [stderr]   Downloaded gosh-core v0.2.0
[INFO] [stderr]   Downloaded nix v0.20.2
[INFO] [stderr]   Downloaded ropey v1.6.1
[INFO] [stderr]   Downloaded unic-char-property v0.9.0
[INFO] [stderr]   Downloaded lazy-regex v2.5.0
[INFO] [stderr]   Downloaded grep-matcher v0.1.7
[INFO] [stderr]   Downloaded grep-searcher v0.1.13
[INFO] [stderr]   Downloaded minijinja v1.0.10
[INFO] [stderr]   Downloaded parse-zoneinfo v0.3.0
[INFO] [stderr]   Downloaded chrono-tz v0.8.4
[INFO] [stderr]   Downloaded str_indices v0.4.3
[INFO] [stderr]   Downloaded libsqlite3-sys v0.22.2
[INFO] [stderr]   Downloaded gchemol-neighbors v0.1.3
[INFO] [stderr]   Downloaded handlebars v4.0.1
[INFO] [stderr]   Downloaded octree v0.1.0
[INFO] [stderr]   Downloaded migrations_internals v1.4.1
[INFO] [stderr]   Downloaded globset v0.4.14
[INFO] [stderr]   Downloaded diesel_derives v1.4.1
[INFO] [stderr]   Downloaded deunicode v1.4.2
[INFO] [stderr]   Downloaded base64 v0.20.0
[INFO] [stderr]   Downloaded phf v0.11.2
[INFO] [stderr]   Downloaded roxmltree v0.18.1
[INFO] [stderr]   Downloaded unic-segment v0.9.0
[INFO] [stderr]   Downloaded diesel_migrations v1.4.0
[INFO] [stderr]   Downloaded tera v1.19.1
[INFO] [stderr]   Downloaded nalgebra v0.31.4
[INFO] [stderr]   Downloaded snailquote v0.2.0
[INFO] [stderr]   Downloaded gchemol-gut v0.3.1
[INFO] [stderr]   Downloaded gchemol-graph v0.1.5
[INFO] [stderr]   Downloaded envfile v0.2.1
[INFO] [stderr]   Downloaded diesel v1.4.8
[INFO] [stderr]   Downloaded gchemol-core v0.1.5
[INFO] [stderr]   Downloaded phf_shared v0.11.2
[INFO] [stderr]   Downloaded edip v0.1.1
[INFO] [stderr]   Downloaded gchemol-geometry v0.1.1
[INFO] [stderr]   Downloaded bimap v0.6.3
[INFO] [stderr]   Downloaded simba v0.7.3
[INFO] [stderr]   Downloaded gosh-model v0.2.0
[INFO] [stderr]   Downloaded grep-printer v0.1.7
[INFO] [stderr]   Downloaded migrations_macros v1.4.2
[INFO] [stderr]   Downloaded clap_derive v3.2.25
[INFO] [stderr]   Downloaded unicode_categories v0.1.1
[INFO] [stderr]   Downloaded petgraph v0.6.4
[INFO] [stderr]   Downloaded gchemol v0.1.7
[INFO] [stderr]   Downloaded gchemol-parser v0.4.5
[INFO] [stderr]   Downloaded gchemol-readwrite v0.1.10
[INFO] [stderr]   Downloaded gchemol-lattice v0.1.2
[INFO] [stderr]   Downloaded phf_codegen v0.11.2
[INFO] [stderr]   Downloaded siphasher v0.3.11
[INFO] [stderr]   Downloaded globwalk v0.8.1
[INFO] [stderr]   Downloaded unic-char-range v0.9.0
[INFO] [stderr]   Downloaded unic-common v0.9.0
[INFO] [stderr]   Downloaded unic-ucd-segment v0.9.0
[INFO] [stderr]   Downloaded gchemol-gut v0.4.4
[INFO] [stderr]   Downloaded encoding_rs_io v0.1.7
[INFO] [stderr]   Downloaded grep v0.2.13
[INFO] [stderr]   Downloaded envy v0.4.2
[INFO] [stderr]   Downloaded unic-ucd-version v0.9.0
[INFO] [stderr]   Downloaded ignore v0.4.21
[INFO] [stderr]   Downloaded uom v0.33.0
[INFO] [stderr]   Downloaded lazy-regex-proc_macros v2.4.1
[INFO] [stderr]   Downloaded phf_generator v0.11.2
[INFO] [stderr]   Downloaded grep-regex v0.1.12
[INFO] [stderr]   Downloaded matrixmultiply v0.3.8
[INFO] [stderr]   Downloaded grep-cli v0.1.10
[INFO] [stderr]   Downloaded safe_arch v0.7.1
[INFO] [stderr]   Downloaded vecfx v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 095ffb3be0b558986f11e6035ddc3e176fd4837aa918ea776d3a2709f1d4d0bb
[INFO] running `Command { std: "docker" "start" "-a" "095ffb3be0b558986f11e6035ddc3e176fd4837aa918ea776d3a2709f1d4d0bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "095ffb3be0b558986f11e6035ddc3e176fd4837aa918ea776d3a2709f1d4d0bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "095ffb3be0b558986f11e6035ddc3e176fd4837aa918ea776d3a2709f1d4d0bb", kill_on_drop: false }`
[INFO] [stdout] 095ffb3be0b558986f11e6035ddc3e176fd4837aa918ea776d3a2709f1d4d0bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc8c1bac43bc84225914c27c5646ad004c7c1a9930a6ca79418f09e8892d74bd
[INFO] running `Command { std: "docker" "start" "-a" "fc8c1bac43bc84225914c27c5646ad004c7c1a9930a6ca79418f09e8892d74bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling libsqlite3-sys v0.22.2
[INFO] [stderr]     Checking grep-matcher v0.1.7
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]     Checking safe_arch v0.7.1
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]     Checking encoding_rs_io v0.1.7
[INFO] [stderr]     Checking memmap2 v0.9.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]    Compiling phf v0.11.2
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]     Checking unic-char-property v0.9.0
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking base64 v0.20.0
[INFO] [stderr]     Checking unic-ucd-version v0.9.0
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking unic-ucd-segment v0.9.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking wide v0.7.13
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]     Checking str_indices v0.4.3
[INFO] [stderr]     Checking deunicode v1.4.2
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking ropey v1.6.1
[INFO] [stderr]     Checking slug v0.1.5
[INFO] [stderr]     Checking humansize v2.1.3
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]     Checking unic-segment v0.9.0
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking xmlparser v0.13.6
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking roxmltree v0.18.1
[INFO] [stderr]     Checking snailquote v0.2.0
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking envfile v0.2.1
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking uom v0.33.0
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking bstr v1.8.0
[INFO] [stderr]     Checking env_logger v0.10.1
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]     Checking globset v0.4.14
[INFO] [stderr]     Checking grep-searcher v0.1.13
[INFO] [stderr]     Checking grep-regex v0.1.12
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking ignore v0.4.21
[INFO] [stderr]     Checking grep-cli v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling thiserror-impl v1.0.51
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]    Compiling pest v2.7.5
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]     Checking clap v4.4.11
[INFO] [stderr]    Compiling lazy-regex-proc_macros v2.4.1
[INFO] [stderr]    Compiling pest_meta v2.7.5
[INFO] [stderr]     Checking serde v1.0.193
[INFO] [stderr]    Compiling pest_generator v2.7.5
[INFO] [stderr]     Checking lazy-regex v2.5.0
[INFO] [stderr]    Compiling pest_derive v2.7.5
[INFO] [stderr]    Compiling diesel v1.4.8
[INFO] [stderr]     Checking serde_json v1.0.108
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking serde_spanned v0.6.4
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking bimap v0.6.3
[INFO] [stderr]     Checking envy v0.4.2
[INFO] [stderr]     Checking minijinja v1.0.10
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking simba v0.7.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking grep-printer v0.1.7
[INFO] [stderr]     Checking handlebars v4.0.1
[INFO] [stderr]     Checking gchemol-gut v0.3.1
[INFO] [stderr]     Checking grep v0.2.13
[INFO] [stderr]     Checking ordered-float v3.9.2
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling phf_codegen v0.11.2
[INFO] [stderr]    Compiling chrono-tz-build v0.2.1
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stderr]     Checking gchemol-graph v0.1.5
[INFO] [stderr]     Checking gchemol-gut v0.4.4
[INFO] [stderr]    Compiling chrono-tz v0.8.4
[INFO] [stderr]     Checking gchemol-parser v0.4.5
[INFO] [stderr]     Checking migrations_internals v1.4.1
[INFO] [stderr]    Compiling migrations_macros v1.4.2
[INFO] [stderr]     Checking nalgebra v0.31.4
[INFO] [stderr]     Checking diesel_migrations v1.4.0
[INFO] [stderr]     Checking tera v1.19.1
[INFO] [stderr]     Checking vecfx v0.1.6
[INFO] [stderr]     Checking gchemol-lattice v0.1.2
[INFO] [stderr]     Checking octree v0.1.0
[INFO] [stderr]     Checking gchemol-geometry v0.1.1
[INFO] [stderr]     Checking edip v0.1.1
[INFO] [stderr]     Checking gchemol-neighbors v0.1.3
[INFO] [stderr]     Checking gchemol-core v0.1.5
[INFO] [stderr]     Checking gchemol-readwrite v0.1.10
[INFO] [stderr]     Checking gchemol v0.1.7
[INFO] [stderr]     Checking gosh-core v0.2.0
[INFO] [stderr]     Checking gosh-model v0.2.0
[INFO] [stderr]     Checking gosh-database v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::schema::*`
[INFO] [stdout]  --> src/checkpoint.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::schema::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::*`
[INFO] [stdout]  --> src/checkpoint.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::schema::*`
[INFO] [stdout]  --> src/collection.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::schema::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gut::prelude::*`
[INFO] [stdout]  --> src/collection.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use gut::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::schema::*`
[INFO] [stdout]  --> src/checkpoint.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::schema::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::*`
[INFO] [stdout]  --> src/checkpoint.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::schema::*`
[INFO] [stdout]  --> src/collection.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::schema::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gut::prelude::*`
[INFO] [stdout]  --> src/collection.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use gut::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `save_model_results` is never used
[INFO] [stdout]   --> src/core.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn save_model_results(mp: &ModelProperties, db: &DbConnection) -> Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `save_model_results` is never used
[INFO] [stdout]   --> src/core.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn save_model_results(mp: &ModelProperties, db: &DbConnection) -> Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.80s
[INFO] running `Command { std: "docker" "inspect" "fc8c1bac43bc84225914c27c5646ad004c7c1a9930a6ca79418f09e8892d74bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc8c1bac43bc84225914c27c5646ad004c7c1a9930a6ca79418f09e8892d74bd", kill_on_drop: false }`
[INFO] [stdout] fc8c1bac43bc84225914c27c5646ad004c7c1a9930a6ca79418f09e8892d74bd