[INFO] fetching crate multicast_dns 0.5.0...
[INFO] checking multicast_dns-0.5.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate multicast_dns 0.5.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate multicast_dns 0.5.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate multicast_dns 0.5.0
[INFO] finished tweaking crates.io crate multicast_dns 0.5.0
[INFO] tweaked toml for crates.io crate multicast_dns 0.5.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate multicast_dns 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c76a99f423126be7e3e5095caf8bad79fecf19e44d6bd2cbf7e7c299474ab3eb
[INFO] running `Command { std: "docker" "start" "-a" "c76a99f423126be7e3e5095caf8bad79fecf19e44d6bd2cbf7e7c299474ab3eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c76a99f423126be7e3e5095caf8bad79fecf19e44d6bd2cbf7e7c299474ab3eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c76a99f423126be7e3e5095caf8bad79fecf19e44d6bd2cbf7e7c299474ab3eb", kill_on_drop: false }`
[INFO] [stdout] c76a99f423126be7e3e5095caf8bad79fecf19e44d6bd2cbf7e7c299474ab3eb
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67c43a85a30ffa207b07d3af258d928793c0e0e10e9d6fec590ba2e50c2edb2b
[INFO] running `Command { std: "docker" "start" "-a" "67c43a85a30ffa207b07d3af258d928793c0e0e10e9d6fec590ba2e50c2edb2b", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking multicast_dns v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::adapter::Adapter`
[INFO] [stdout]  --> src/adapters/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use self::adapter::Adapter;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::adapter::Adapter`
[INFO] [stdout]  --> src/adapters/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use self::adapter::Adapter;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flags` is never read
[INFO] [stdout]   --> src/adapters/avahi/callbacks.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct BrowseCallbackParameters {
[INFO] [stdout]    |            ------------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub flags: AvahiLookupResultFlags,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BrowseCallbackParameters` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flags` is never read
[INFO] [stdout]   --> src/adapters/avahi/callbacks.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct ResolveCallbackParameters {
[INFO] [stdout]    |            ------------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub flags: AvahiLookupResultFlags,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ResolveCallbackParameters` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:144:17
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 Box::from_raw((*avahi_client).userdata);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 let _ = Box::from_raw((*avahi_client).userdata);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:233:18
[INFO] [stdout]     |
[INFO] [stdout] 233 |         unsafe { CString::from_raw(service_type) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 233 |         unsafe { let _ = CString::from_raw(service_type); };
[INFO] [stdout]     |                  +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:291:17
[INFO] [stdout]     |
[INFO] [stdout] 291 |                 Box::from_raw((*avahi_service_browser).userdata);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 291 |                 let _ = Box::from_raw((*avahi_service_browser).userdata);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:357:18
[INFO] [stdout]     |
[INFO] [stdout] 357 |         unsafe { CString::from_raw(host_name) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 357 |         unsafe { let _ = CString::from_raw(host_name); };
[INFO] [stdout]     |                  +++++++                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:372:18
[INFO] [stdout]     |
[INFO] [stdout] 372 |         unsafe { CString::from_raw(host_name) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 372 |         unsafe { let _ = CString::from_raw(host_name); };
[INFO] [stdout]     |                  +++++++                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:387:18
[INFO] [stdout]     |
[INFO] [stdout] 387 |         unsafe { CString::from_raw(original_host_name) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 387 |         unsafe { let _ = CString::from_raw(original_host_name); };
[INFO] [stdout]     |                  +++++++                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:444:18
[INFO] [stdout]     |
[INFO] [stdout] 444 |         unsafe { CString::from_raw(host_name) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 444 |         unsafe { let _ = CString::from_raw(host_name); };
[INFO] [stdout]     |                  +++++++                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:499:18
[INFO] [stdout]     |
[INFO] [stdout] 499 |         unsafe { CString::from_raw(service_type) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 499 |         unsafe { let _ = CString::from_raw(service_type); };
[INFO] [stdout]     |                  +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:500:18
[INFO] [stdout]     |
[INFO] [stdout] 500 |         unsafe { CString::from_raw(service_name) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 500 |         unsafe { let _ = CString::from_raw(service_name); };
[INFO] [stdout]     |                  +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]   --> src/adapters/avahi/callbacks.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Box::into_raw(sender);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let _ = Box::into_raw(sender);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]   --> src/adapters/avahi/callbacks.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         Box::into_raw(sender);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let _ = Box::into_raw(sender);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on `Self: Drop` are most likely incorrect, consider instead using `std::mem::needs_drop` to detect whether a type can be trivially dropped
[INFO] [stdout]   --> src/adapters/adapter.rs:24:53
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub trait Adapter: DiscoveryAdapter + HostAdapter + Drop {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(drop_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flags` is never read
[INFO] [stdout]   --> src/adapters/avahi/callbacks.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct BrowseCallbackParameters {
[INFO] [stdout]    |            ------------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub flags: AvahiLookupResultFlags,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BrowseCallbackParameters` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flags` is never read
[INFO] [stdout]   --> src/adapters/avahi/callbacks.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct ResolveCallbackParameters {
[INFO] [stdout]    |            ------------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub flags: AvahiLookupResultFlags,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ResolveCallbackParameters` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:144:17
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 Box::from_raw((*avahi_client).userdata);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 144 |                 let _ = Box::from_raw((*avahi_client).userdata);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:233:18
[INFO] [stdout]     |
[INFO] [stdout] 233 |         unsafe { CString::from_raw(service_type) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 233 |         unsafe { let _ = CString::from_raw(service_type); };
[INFO] [stdout]     |                  +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:291:17
[INFO] [stdout]     |
[INFO] [stdout] 291 |                 Box::from_raw((*avahi_service_browser).userdata);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 291 |                 let _ = Box::from_raw((*avahi_service_browser).userdata);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:357:18
[INFO] [stdout]     |
[INFO] [stdout] 357 |         unsafe { CString::from_raw(host_name) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 357 |         unsafe { let _ = CString::from_raw(host_name); };
[INFO] [stdout]     |                  +++++++                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:372:18
[INFO] [stdout]     |
[INFO] [stdout] 372 |         unsafe { CString::from_raw(host_name) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 372 |         unsafe { let _ = CString::from_raw(host_name); };
[INFO] [stdout]     |                  +++++++                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:387:18
[INFO] [stdout]     |
[INFO] [stdout] 387 |         unsafe { CString::from_raw(original_host_name) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 387 |         unsafe { let _ = CString::from_raw(original_host_name); };
[INFO] [stdout]     |                  +++++++                                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:444:18
[INFO] [stdout]     |
[INFO] [stdout] 444 |         unsafe { CString::from_raw(host_name) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 444 |         unsafe { let _ = CString::from_raw(host_name); };
[INFO] [stdout]     |                  +++++++                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:499:18
[INFO] [stdout]     |
[INFO] [stdout] 499 |         unsafe { CString::from_raw(service_type) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 499 |         unsafe { let _ = CString::from_raw(service_type); };
[INFO] [stdout]     |                  +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/adapters/avahi/adapter.rs:500:18
[INFO] [stdout]     |
[INFO] [stdout] 500 |         unsafe { CString::from_raw(service_name) };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 500 |         unsafe { let _ = CString::from_raw(service_name); };
[INFO] [stdout]     |                  +++++++                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]   --> src/adapters/avahi/callbacks.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Box::into_raw(sender);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let _ = Box::into_raw(sender);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]   --> src/adapters/avahi/callbacks.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         Box::into_raw(sender);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let _ = Box::into_raw(sender);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on `Self: Drop` are most likely incorrect, consider instead using `std::mem::needs_drop` to detect whether a type can be trivially dropped
[INFO] [stdout]   --> src/adapters/adapter.rs:24:53
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub trait Adapter: DiscoveryAdapter + HostAdapter + Drop {
[INFO] [stdout]    |                                                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(drop_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "67c43a85a30ffa207b07d3af258d928793c0e0e10e9d6fec590ba2e50c2edb2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67c43a85a30ffa207b07d3af258d928793c0e0e10e9d6fec590ba2e50c2edb2b", kill_on_drop: false }`
[INFO] [stdout] 67c43a85a30ffa207b07d3af258d928793c0e0e10e9d6fec590ba2e50c2edb2b