[INFO] fetching crate handshake-types 0.1.1... [INFO] testing handshake-types-0.1.1 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate handshake-types 0.1.1 into /workspace/builds/worker-55/source [INFO] validating manifest of crates.io crate handshake-types 0.1.1 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate handshake-types 0.1.1 [INFO] finished tweaking crates.io crate handshake-types 0.1.1 [INFO] tweaked toml for crates.io crate handshake-types 0.1.1 written to /workspace/builds/worker-55/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c8b64be99c848f08bb22f3612ca6a5ba808ba7baafaf490d902f1b7dd5e03978 [INFO] running `Command { std: "docker" "start" "-a" "c8b64be99c848f08bb22f3612ca6a5ba808ba7baafaf490d902f1b7dd5e03978", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c8b64be99c848f08bb22f3612ca6a5ba808ba7baafaf490d902f1b7dd5e03978", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8b64be99c848f08bb22f3612ca6a5ba808ba7baafaf490d902f1b7dd5e03978", kill_on_drop: false }` [INFO] [stdout] c8b64be99c848f08bb22f3612ca6a5ba808ba7baafaf490d902f1b7dd5e03978 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b86626c84b68bed69afb984727c2349213883e3630c1e9e926ff3d542aaf3987 [INFO] running `Command { std: "docker" "start" "-a" "b86626c84b68bed69afb984727c2349213883e3630c1e9e926ff3d542aaf3987", kill_on_drop: false }` [INFO] [stderr] Compiling encodings v0.1.0 [INFO] [stderr] Compiling cryptoxide v0.1.3 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling extended-primitives v0.3.5 [INFO] [stderr] Compiling handshake-encoding v0.1.1 [INFO] [stderr] Compiling handshake-types v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/amount.rs:190:20 [INFO] [stdout] | [INFO] [stdout] 190 | '0'...'9' => { [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/amount.rs:80:41 [INFO] [stdout] | [INFO] [stdout] 80 | let desc = ::std::error::Error::description(self); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/amount.rs:90:32 [INFO] [stdout] | [INFO] [stdout] 90 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 90 - fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] 90 + fn cause(&self) -> Option<&dyn error::Error> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/amount.rs:275:40 [INFO] [stdout] | [INFO] [stdout] 275 | pub fn fmt_value_in(&self, f: &mut fmt::Write, denom: Denomination) -> fmt::Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 275 - pub fn fmt_value_in(&self, f: &mut fmt::Write, denom: Denomination) -> fmt::Result { [INFO] [stdout] 275 + pub fn fmt_value_in(&self, f: &mut dyn fmt::Write, denom: Denomination) -> fmt::Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.33s [INFO] running `Command { std: "docker" "inspect" "b86626c84b68bed69afb984727c2349213883e3630c1e9e926ff3d542aaf3987", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b86626c84b68bed69afb984727c2349213883e3630c1e9e926ff3d542aaf3987", kill_on_drop: false }` [INFO] [stdout] b86626c84b68bed69afb984727c2349213883e3630c1e9e926ff3d542aaf3987 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 40df31303d0abb3961e39ddb65e48e3aed775a465a7b7e6e62495f70a6417427 [INFO] running `Command { std: "docker" "start" "-a" "40df31303d0abb3961e39ddb65e48e3aed775a465a7b7e6e62495f70a6417427", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling handshake-types v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/amount.rs:190:20 [INFO] [stdout] | [INFO] [stdout] 190 | '0'...'9' => { [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/amount.rs:80:41 [INFO] [stdout] | [INFO] [stdout] 80 | let desc = ::std::error::Error::description(self); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/amount.rs:90:32 [INFO] [stdout] | [INFO] [stdout] 90 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 90 - fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] 90 + fn cause(&self) -> Option<&dyn error::Error> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/amount.rs:275:40 [INFO] [stdout] | [INFO] [stdout] 275 | pub fn fmt_value_in(&self, f: &mut fmt::Write, denom: Denomination) -> fmt::Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 275 - pub fn fmt_value_in(&self, f: &mut fmt::Write, denom: Denomination) -> fmt::Result { [INFO] [stdout] 275 + pub fn fmt_value_in(&self, f: &mut dyn fmt::Write, denom: Denomination) -> fmt::Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/amount.rs:190:20 [INFO] [stdout] | [INFO] [stdout] 190 | '0'...'9' => { [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/amount.rs:80:41 [INFO] [stdout] | [INFO] [stdout] 80 | let desc = ::std::error::Error::description(self); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/amount.rs:90:32 [INFO] [stdout] | [INFO] [stdout] 90 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 90 - fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] 90 + fn cause(&self) -> Option<&dyn error::Error> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/amount.rs:275:40 [INFO] [stdout] | [INFO] [stdout] 275 | pub fn fmt_value_in(&self, f: &mut fmt::Write, denom: Denomination) -> fmt::Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 275 - pub fn fmt_value_in(&self, f: &mut fmt::Write, denom: Denomination) -> fmt::Result { [INFO] [stdout] 275 + pub fn fmt_value_in(&self, f: &mut dyn fmt::Write, denom: Denomination) -> fmt::Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.24s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/handshake_types-ff9d4abfd86b9c6e) [INFO] running `Command { std: "docker" "inspect" "40df31303d0abb3961e39ddb65e48e3aed775a465a7b7e6e62495f70a6417427", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "40df31303d0abb3961e39ddb65e48e3aed775a465a7b7e6e62495f70a6417427", kill_on_drop: false }` [INFO] [stdout] 40df31303d0abb3961e39ddb65e48e3aed775a465a7b7e6e62495f70a6417427 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 466b7e227b6f6f6d2346144c18254e77e514881727a5995f0d2fbb7c39791a5d [INFO] running `Command { std: "docker" "start" "-a" "466b7e227b6f6f6d2346144c18254e77e514881727a5995f0d2fbb7c39791a5d", kill_on_drop: false }` [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/amount.rs:190:20 [INFO] [stderr] | [INFO] [stderr] 190 | '0'...'9' => { [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stderr] --> src/amount.rs:80:41 [INFO] [stderr] | [INFO] [stderr] 80 | let desc = ::std::error::Error::description(self); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/amount.rs:90:32 [INFO] [stderr] | [INFO] [stderr] 90 | fn cause(&self) -> Option<&error::Error> { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 90 - fn cause(&self) -> Option<&error::Error> { [INFO] [stderr] 90 + fn cause(&self) -> Option<&dyn error::Error> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/amount.rs:275:40 [INFO] [stderr] | [INFO] [stderr] 275 | pub fn fmt_value_in(&self, f: &mut fmt::Write, denom: Denomination) -> fmt::Result { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 275 - pub fn fmt_value_in(&self, f: &mut fmt::Write, denom: Denomination) -> fmt::Result { [INFO] [stderr] 275 + pub fn fmt_value_in(&self, f: &mut dyn fmt::Write, denom: Denomination) -> fmt::Result { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `handshake-types` (lib) generated 4 warnings [INFO] [stderr] warning: `handshake-types` (lib test) generated 4 warnings (4 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/handshake_types-ff9d4abfd86b9c6e) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test amount::tests::test_denomination_from_string ... ok [INFO] [stdout] test compact::tests::difficulty ... ok [INFO] [stdout] test compact::tests::test_compact_to_from_u256 ... ok [INFO] [stdout] test compact::tests::test_compact_to_u256 ... ok [INFO] [stdout] test compact::tests::test_from_u256 ... ok [INFO] [stdout] test merkle_tree::test::test_merkle_tree_generation ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests handshake-types [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> /opt/rustwide/workdir/src/amount.rs:190:20 [INFO] [stderr] | [INFO] [stderr] 190 | '0'...'9' => { [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [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" "466b7e227b6f6f6d2346144c18254e77e514881727a5995f0d2fbb7c39791a5d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "466b7e227b6f6f6d2346144c18254e77e514881727a5995f0d2fbb7c39791a5d", kill_on_drop: false }` [INFO] [stdout] 466b7e227b6f6f6d2346144c18254e77e514881727a5995f0d2fbb7c39791a5d