[INFO] cloning repository https://github.com/andykilroy/mcast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andykilroy/mcast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandykilroy%2Fmcast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandykilroy%2Fmcast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f0bd729f772f1bcc0c982e37265d7d49a8491ef
[INFO] testing andykilroy/mcast against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandykilroy%2Fmcast" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andykilroy/mcast on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andykilroy/mcast
[INFO] finished tweaking git repo https://github.com/andykilroy/mcast
[INFO] tweaked toml for git repo https://github.com/andykilroy/mcast written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/andykilroy/mcast already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffbcad92ed0464c3926073634660c055134c62012fe4ad730a498b5959a569fd
[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" "ffbcad92ed0464c3926073634660c055134c62012fe4ad730a498b5959a569fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffbcad92ed0464c3926073634660c055134c62012fe4ad730a498b5959a569fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffbcad92ed0464c3926073634660c055134c62012fe4ad730a498b5959a569fd", kill_on_drop: false }`
[INFO] [stdout] ffbcad92ed0464c3926073634660c055134c62012fe4ad730a498b5959a569fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] af08272a2f271d2071e73536cc083f74d39da8dd886c0a7fba10176cf6fcb50d
[INFO] running `Command { std: "docker" "start" "-a" "af08272a2f271d2071e73536cc083f74d39da8dd886c0a7fba10176cf6fcb50d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling socket2 v0.3.9
[INFO] [stderr]    Compiling backtrace v0.3.12
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling exitfailure v0.5.1
[INFO] [stderr]    Compiling mcast v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `parse_ipv4_groups`
[INFO] [stdout]   --> src/main.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn parse_ipv4_groups(groups_str: &[String]) -> Result<Vec<Ipv4Addr>, Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.88s
[INFO] running `Command { std: "docker" "inspect" "af08272a2f271d2071e73536cc083f74d39da8dd886c0a7fba10176cf6fcb50d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af08272a2f271d2071e73536cc083f74d39da8dd886c0a7fba10176cf6fcb50d", kill_on_drop: false }`
[INFO] [stdout] af08272a2f271d2071e73536cc083f74d39da8dd886c0a7fba10176cf6fcb50d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 075bc3dea9b52ad82c46628c743fa7912d3bddd6cc4620c66a91cfc8530b31a6
[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" "075bc3dea9b52ad82c46628c743fa7912d3bddd6cc4620c66a91cfc8530b31a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling regex-syntax v0.6.8
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stdout] warning: function is never used: `parse_ipv4_groups`
[INFO] [stdout]   --> src/main.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn parse_ipv4_groups(groups_str: &[String]) -> Result<Vec<Ipv4Addr>, Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling predicates v1.0.1
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]    Compiling assert_cmd v0.11.1
[INFO] [stderr]    Compiling mcast v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `parse_ipv4_groups`
[INFO] [stdout]   --> src/main.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn parse_ipv4_groups(groups_str: &[String]) -> Result<Vec<Ipv4Addr>, Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> tests/cli.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn send_not_enough_args() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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]   --> tests/cli.rs:16:53
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn send_to_malformed_ipv4_group() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:30:50
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn send_to_out_of_range_port() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:44:57
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn send_to_malformed_ipv4_interface() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:58:47
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn listen_not_enough_args() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:68:74
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn listen_must_be_given_at_least_one_multicast_group() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:79:55
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn listen_to_malformed_ipv4_group() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/cli.rs:93:52
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn listen_to_out_of_range_port() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/cli.rs:107:59
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn listen_to_malformed_ipv4_interface() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                           ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/cli.rs:121:45
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn unrecognised_command() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 41.95s
[INFO] running `Command { std: "docker" "inspect" "075bc3dea9b52ad82c46628c743fa7912d3bddd6cc4620c66a91cfc8530b31a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "075bc3dea9b52ad82c46628c743fa7912d3bddd6cc4620c66a91cfc8530b31a6", kill_on_drop: false }`
[INFO] [stdout] 075bc3dea9b52ad82c46628c743fa7912d3bddd6cc4620c66a91cfc8530b31a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 15d1f81721364b0ae0443f51ee239e9c741b2f9f136e5386186d088600d57b2c
[INFO] running `Command { std: "docker" "start" "-a" "15d1f81721364b0ae0443f51ee239e9c741b2f9f136e5386186d088600d57b2c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> tests/cli.rs:6:45
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn send_not_enough_args() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:16:53
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn send_to_malformed_ipv4_group() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:30:50
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn send_to_out_of_range_port() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:44:57
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn send_to_malformed_ipv4_interface() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:58:47
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn listen_not_enough_args() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:68:74
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn listen_must_be_given_at_least_one_multicast_group() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:79:55
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn listen_to_malformed_ipv4_group() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/cli.rs:93:52
[INFO] [stderr]    |
[INFO] [stderr] 93 | fn listen_to_out_of_range_port() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/cli.rs:107:59
[INFO] [stderr]     |
[INFO] [stderr] 107 | fn listen_to_malformed_ipv4_interface() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/cli.rs:121:45
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn unrecognised_command() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_ipv4_groups`
[INFO] [stderr]   --> src/main.rs:88:4
[INFO] [stderr]    |
[INFO] [stderr] 88 | fn parse_ipv4_groups(groups_str: &[String]) -> Result<Vec<Ipv4Addr>, Error> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_ipv4_groups`
[INFO] [stderr]   --> src/main.rs:88:4
[INFO] [stderr]    |
[INFO] [stderr] 88 | fn parse_ipv4_groups(groups_str: &[String]) -> Result<Vec<Ipv4Addr>, Error> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mcast-d81c7abe4fdba65e
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cli-c89b620cae964d78
[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 10 tests
[INFO] [stdout] test listen_to_out_of_range_port ... ok
[INFO] [stdout] test send_to_malformed_ipv4_group ... ok
[INFO] [stdout] test listen_not_enough_args ... ok
[INFO] [stdout] test unrecognised_command ... ok
[INFO] [stdout] test send_to_malformed_ipv4_interface ... ok
[INFO] [stdout] test send_not_enough_args ... ok
[INFO] [stdout] test listen_must_be_given_at_least_one_multicast_group ... ok
[INFO] [stdout] test send_to_out_of_range_port ... ok
[INFO] [stdout] test listen_to_malformed_ipv4_group ... ok
[INFO] [stdout] test listen_to_malformed_ipv4_interface ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "15d1f81721364b0ae0443f51ee239e9c741b2f9f136e5386186d088600d57b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d1f81721364b0ae0443f51ee239e9c741b2f9f136e5386186d088600d57b2c", kill_on_drop: false }`
[INFO] [stdout] 15d1f81721364b0ae0443f51ee239e9c741b2f9f136e5386186d088600d57b2c
