[INFO] cloning repository https://github.com/realityone/rsping
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/realityone/rsping" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealityone%2Frsping", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealityone%2Frsping'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 212a3c858d89d379cb221eb96fcadcb14efc12b5
[INFO] checking realityone/rsping against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealityone%2Frsping" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/realityone/rsping on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/realityone/rsping
[INFO] finished tweaking git repo https://github.com/realityone/rsping
[INFO] tweaked toml for git repo https://github.com/realityone/rsping written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/realityone/rsping already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 823150dd0920736856c59c44adde11488e80472d2497582c23e7e9025be6b218
[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" "823150dd0920736856c59c44adde11488e80472d2497582c23e7e9025be6b218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "823150dd0920736856c59c44adde11488e80472d2497582c23e7e9025be6b218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "823150dd0920736856c59c44adde11488e80472d2497582c23e7e9025be6b218", kill_on_drop: false }`
[INFO] [stdout] 823150dd0920736856c59c44adde11488e80472d2497582c23e7e9025be6b218
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db4f0a86e4a8a5cb90ea84d5b3740ff129a268df8b3645c70abe94612c73fe96
[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" "db4f0a86e4a8a5cb90ea84d5b3740ff129a268df8b3645c70abe94612c73fe96", kill_on_drop: false }`
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling lazy_static v0.2.9
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling cc v1.0.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking ipnetwork v0.12.7
[INFO] [stderr]     Checking pnet_macros_support v0.2.0
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]     Checking textwrap v0.8.0
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]     Checking clap v2.26.2
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]     Checking syntex_errors v0.42.0
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]     Checking syntex_syntax v0.42.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.15
[INFO] [stderr]     Checking syntex v0.42.2
[INFO] [stderr]     Checking pnet_macros v0.15.0
[INFO] [stderr]     Checking backtrace v0.3.3
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]    Compiling pnet v0.19.0
[INFO] [stderr]     Checking rsping v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ping/arp.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 |     channel: (Box<EthernetDataLinkSender>, Box<EthernetDataLinkReceiver>),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn EthernetDataLinkSender`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ping/arp.rs:25:48
[INFO] [stdout]    |
[INFO] [stdout] 25 |     channel: (Box<EthernetDataLinkSender>, Box<EthernetDataLinkReceiver>),
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn EthernetDataLinkReceiver`
[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/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / error_chain! {
[INFO] [stdout] 2  | |     errors {
[INFO] [stdout] 3  | |         BuildPacketError
[INFO] [stdout] 4  | |         ParsePacketError
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / error_chain! {
[INFO] [stdout] 2  | |     errors {
[INFO] [stdout] 3  | |         BuildPacketError
[INFO] [stdout] 4  | |         ParsePacketError
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/ping/icmp.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | / lazy_static!{
[INFO] [stdout] 8 | |     static ref MINIMUM_BUFFER_SIZE: usize = MutableIcmpPacket::minimum_packet_size() + MutableIpv4Packet::minimum_packet_size();
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/ping/icmp.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | / lazy_static!{
[INFO] [stdout] 8 | |     static ref MINIMUM_BUFFER_SIZE: usize = MutableIcmpPacket::minimum_packet_size() + MutableIpv4Packet::minimum_packet_size();
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/ping/arp.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / lazy_static!{
[INFO] [stdout] 19 | |     static ref MINIMUM_BUFFER_SIZE: usize = MutableArpPacket::minimum_packet_size() + MutableEthernetPacket::minimum_packet_size();
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/ping/arp.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / lazy_static!{
[INFO] [stdout] 19 | |     static ref MINIMUM_BUFFER_SIZE: usize = MutableArpPacket::minimum_packet_size() + MutableEthernetPacket::minimum_packet_size();
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/ping/tcp.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | / lazy_static!{
[INFO] [stdout] 8 | |     static ref MINIMUM_BUFFER_SIZE: usize = MutableIcmpPacket::minimum_packet_size() + MutableIpv4Packet::minimum_packet_size();
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/ping/tcp.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | / lazy_static!{
[INFO] [stdout] 8 | |     static ref MINIMUM_BUFFER_SIZE: usize = MutableIcmpPacket::minimum_packet_size() + MutableIpv4Packet::minimum_packet_size();
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ping/arp.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 |     channel: (Box<EthernetDataLinkSender>, Box<EthernetDataLinkReceiver>),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn EthernetDataLinkSender`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ping/arp.rs:25:48
[INFO] [stdout]    |
[INFO] [stdout] 25 |     channel: (Box<EthernetDataLinkSender>, Box<EthernetDataLinkReceiver>),
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn EthernetDataLinkReceiver`
[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/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / error_chain! {
[INFO] [stdout] 2  | |     errors {
[INFO] [stdout] 3  | |         BuildPacketError
[INFO] [stdout] 4  | |         ParsePacketError
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / error_chain! {
[INFO] [stdout] 2  | |     errors {
[INFO] [stdout] 3  | |         BuildPacketError
[INFO] [stdout] 4  | |         ParsePacketError
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/ping/icmp.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | / lazy_static!{
[INFO] [stdout] 8 | |     static ref MINIMUM_BUFFER_SIZE: usize = MutableIcmpPacket::minimum_packet_size() + MutableIpv4Packet::minimum_packet_size();
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/ping/icmp.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | / lazy_static!{
[INFO] [stdout] 8 | |     static ref MINIMUM_BUFFER_SIZE: usize = MutableIcmpPacket::minimum_packet_size() + MutableIpv4Packet::minimum_packet_size();
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/ping/arp.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / lazy_static!{
[INFO] [stdout] 19 | |     static ref MINIMUM_BUFFER_SIZE: usize = MutableArpPacket::minimum_packet_size() + MutableEthernetPacket::minimum_packet_size();
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/ping/arp.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / lazy_static!{
[INFO] [stdout] 19 | |     static ref MINIMUM_BUFFER_SIZE: usize = MutableArpPacket::minimum_packet_size() + MutableEthernetPacket::minimum_packet_size();
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/ping/tcp.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | / lazy_static!{
[INFO] [stdout] 8 | |     static ref MINIMUM_BUFFER_SIZE: usize = MutableIcmpPacket::minimum_packet_size() + MutableIpv4Packet::minimum_packet_size();
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> src/ping/tcp.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | / lazy_static!{
[INFO] [stdout] 8 | |     static ref MINIMUM_BUFFER_SIZE: usize = MutableIcmpPacket::minimum_packet_size() + MutableIpv4Packet::minimum_packet_size();
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / error_chain! {
[INFO] [stdout] 2  | |     errors {
[INFO] [stdout] 3  | |         BuildPacketError
[INFO] [stdout] 4  | |         ParsePacketError
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/ping/icmp.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn execute<'a>(app: &ArgMatches<'a>) {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_ifname`
[INFO] [stdout]    --> src/ping/arp.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let default_ifname = "eth0";
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_ifname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / error_chain! {
[INFO] [stdout] 2  | |     errors {
[INFO] [stdout] 3  | |         BuildPacketError
[INFO] [stdout] 4  | |         ParsePacketError
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/ping/tcp.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn execute<'a>(app: &ArgMatches<'a>) {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/ping/icmp.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn execute<'a>(app: &ArgMatches<'a>) {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_ifname`
[INFO] [stdout]    --> src/ping/arp.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let default_ifname = "eth0";
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_ifname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `app`
[INFO] [stdout]   --> src/ping/tcp.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn execute<'a>(app: &ArgMatches<'a>) {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "db4f0a86e4a8a5cb90ea84d5b3740ff129a268df8b3645c70abe94612c73fe96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db4f0a86e4a8a5cb90ea84d5b3740ff129a268df8b3645c70abe94612c73fe96", kill_on_drop: false }`
[INFO] [stdout] db4f0a86e4a8a5cb90ea84d5b3740ff129a268df8b3645c70abe94612c73fe96