[INFO] crate traceroute 0.1.1 is already in cache
[INFO] testing traceroute-0.1.1 against 1.45.2 for beta-1.46-1
[INFO] extracting crate traceroute 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate traceroute 0.1.1 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate traceroute 0.1.1
[INFO] finished tweaking crates.io crate traceroute 0.1.1
[INFO] tweaked toml for crates.io crate traceroute 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 031d09e9dae98fca028b7945c1729ce2d78a47d249d0249bd362ff45bc091b42
[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" "031d09e9dae98fca028b7945c1729ce2d78a47d249d0249bd362ff45bc091b42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "031d09e9dae98fca028b7945c1729ce2d78a47d249d0249bd362ff45bc091b42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "031d09e9dae98fca028b7945c1729ce2d78a47d249d0249bd362ff45bc091b42", kill_on_drop: false }`
[INFO] [stdout] 031d09e9dae98fca028b7945c1729ce2d78a47d249d0249bd362ff45bc091b42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfe5939805768af016a1c04967d074e5b92089c565fc3e7d00fa9ed3fe1deecc
[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" "cfe5939805768af016a1c04967d074e5b92089c565fc3e7d00fa9ed3fe1deecc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num v0.3.0
[INFO] [stderr]    Compiling socket v0.0.7
[INFO] [stderr]    Compiling traceroute v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut addr_iter = try!(address.to_socket_addrs());
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:80:22
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let socket = try!(Socket::new(AF_INET, SOCK_RAW, IPPROTO_ICMP));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |             try!(socket.setsockopt(IPPROTO_IP, IP_TTL, self.ttl));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |             try!(socket.setsockopt(SOL_SOCKET, SO_RCVTIMEO, compute_timeout(self.timeout)));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let wrote = try!(socket.sendto(&ping, 0, &self.addr));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:105:28
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 let data = try!(ip_payload(&data));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.59s
[INFO] running `Command { std: "docker" "inspect" "cfe5939805768af016a1c04967d074e5b92089c565fc3e7d00fa9ed3fe1deecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfe5939805768af016a1c04967d074e5b92089c565fc3e7d00fa9ed3fe1deecc", kill_on_drop: false }`
[INFO] [stdout] cfe5939805768af016a1c04967d074e5b92089c565fc3e7d00fa9ed3fe1deecc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52416324d3f48980032f724323b907e218c4fb4f8ed7ac742f1403f54f18066e
[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" "52416324d3f48980032f724323b907e218c4fb4f8ed7ac742f1403f54f18066e", kill_on_drop: false }`
[INFO] [stderr]    Compiling traceroute v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut addr_iter = try!(address.to_socket_addrs());
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:80:22
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let socket = try!(Socket::new(AF_INET, SOCK_RAW, IPPROTO_ICMP));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |             try!(socket.setsockopt(IPPROTO_IP, IP_TTL, self.ttl));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |             try!(socket.setsockopt(SOL_SOCKET, SO_RCVTIMEO, compute_timeout(self.timeout)));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let wrote = try!(socket.sendto(&ping, 0, &self.addr));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:105:28
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 let data = try!(ip_payload(&data));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut addr_iter = try!(address.to_socket_addrs());
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:80:22
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let socket = try!(Socket::new(AF_INET, SOCK_RAW, IPPROTO_ICMP));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |             try!(socket.setsockopt(IPPROTO_IP, IP_TTL, self.ttl));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |             try!(socket.setsockopt(SOL_SOCKET, SO_RCVTIMEO, compute_timeout(self.timeout)));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let wrote = try!(socket.sendto(&ping, 0, &self.addr));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:105:28
[INFO] [stdout]     |
[INFO] [stdout] 105 |                 let data = try!(ip_payload(&data));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "52416324d3f48980032f724323b907e218c4fb4f8ed7ac742f1403f54f18066e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52416324d3f48980032f724323b907e218c4fb4f8ed7ac742f1403f54f18066e", kill_on_drop: false }`
[INFO] [stdout] 52416324d3f48980032f724323b907e218c4fb4f8ed7ac742f1403f54f18066e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5ec87ba456c494239ab880c4d3cfd4fa0129412ad088b102d3de8c1f363077d7
[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" "5ec87ba456c494239ab880c4d3cfd4fa0129412ad088b102d3de8c1f363077d7", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:48:25
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let mut addr_iter = try!(address.to_socket_addrs());
[INFO] [stderr]    |                         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:80:22
[INFO] [stderr]    |
[INFO] [stderr] 80 |         let socket = try!(Socket::new(AF_INET, SOCK_RAW, IPPROTO_ICMP));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             try!(socket.setsockopt(IPPROTO_IP, IP_TTL, self.ttl));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |             try!(socket.setsockopt(SOL_SOCKET, SO_RCVTIMEO, compute_timeout(self.timeout)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:89:25
[INFO] [stderr]    |
[INFO] [stderr] 89 |             let wrote = try!(socket.sendto(&ping, 0, &self.addr));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:105:28
[INFO] [stderr]     |
[INFO] [stderr] 105 |                 let data = try!(ip_payload(&data));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:48:25
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let mut addr_iter = try!(address.to_socket_addrs());
[INFO] [stderr]    |                         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:80:22
[INFO] [stderr]    |
[INFO] [stderr] 80 |         let socket = try!(Socket::new(AF_INET, SOCK_RAW, IPPROTO_ICMP));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             try!(socket.setsockopt(IPPROTO_IP, IP_TTL, self.ttl));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |             try!(socket.setsockopt(SOL_SOCKET, SO_RCVTIMEO, compute_timeout(self.timeout)));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:89:25
[INFO] [stderr]    |
[INFO] [stderr] 89 |             let wrote = try!(socket.sendto(&ping, 0, &self.addr));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:105:28
[INFO] [stderr]     |
[INFO] [stderr] 105 |                 let data = try!(ip_payload(&data));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/traceroute-9ae134a62de04786
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/traceroute-edc85afc1158ff3e
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests traceroute
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5ec87ba456c494239ab880c4d3cfd4fa0129412ad088b102d3de8c1f363077d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ec87ba456c494239ab880c4d3cfd4fa0129412ad088b102d3de8c1f363077d7", kill_on_drop: false }`
[INFO] [stdout] 5ec87ba456c494239ab880c4d3cfd4fa0129412ad088b102d3de8c1f363077d7