[INFO] fetching crate async-rustbus 0.2.0...
[INFO] checking async-rustbus-0.2.0 against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] extracting crate async-rustbus 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate async-rustbus 0.2.0 on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-rustbus 0.2.0
[INFO] finished tweaking crates.io crate async-rustbus 0.2.0
[INFO] tweaked toml for crates.io crate async-rustbus 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 65 packages to latest compatible versions
[INFO] [stderr]       Adding async-channel v1.9.0 (available: v2.3.1)
[INFO] [stderr]       Adding rustbus v0.17.0 (available: v0.19.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2166bd210c625371bb215a5dc482e4c0ad7259164fdf0952912e831b6e84c984
[INFO] running `Command { std: "docker" "start" "-a" "2166bd210c625371bb215a5dc482e4c0ad7259164fdf0952912e831b6e84c984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2166bd210c625371bb215a5dc482e4c0ad7259164fdf0952912e831b6e84c984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2166bd210c625371bb215a5dc482e4c0ad7259164fdf0952912e831b6e84c984", kill_on_drop: false }`
[INFO] [stdout] 2166bd210c625371bb215a5dc482e4c0ad7259164fdf0952912e831b6e84c984
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9760db525868648c8cccf361ebbb804ae4e83eee05e356c5d3e21f5d9d877b6
[INFO] running `Command { std: "docker" "start" "-a" "c9760db525868648c8cccf361ebbb804ae4e83eee05e356c5d3e21f5d9d877b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking nix v0.22.3
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking socket2 v0.5.8
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking xml-rs v0.8.23
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking tokio v1.41.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling rustbus_derive v0.4.0
[INFO] [stderr]     Checking rustbus v0.17.0
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking async-rustbus v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `cmsg_level` and `cmsg_type` are never read
[INFO] [stdout]    --> src/conn/ancillary.rs:239:15
[INFO] [stdout]     |
[INFO] [stdout] 239 |     Unknown { cmsg_level: i32, cmsg_type: i32 },
[INFO] [stdout]     |     -------   ^^^^^^^^^^       ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AncillaryError` 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: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |           && MAP_TUPLE
[INFO] [stdout]    |  ____________^
[INFO] [stdout] 23 | |             .0
[INFO] [stdout] 24 | |             .compare_exchange(0, 1, Ordering::AcqRel, Ordering::Relaxed)
[INFO] [stdout]    | |________________________________________________________________________^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         MAP_TUPLE.0.store(2, Ordering::Release);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |         return &*MAP_TUPLE.1.as_ptr();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 |     while MAP_TUPLE.0.load(Ordering::Acquire) != 2 {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:34:7
[INFO] [stdout]    |
[INFO] [stdout] 34 |     &*MAP_TUPLE.1.as_ptr()
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let flag = MAP_TUPLE.0.load(Ordering::Acquire);
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:40:22
[INFO] [stdout]    |
[INFO] [stdout] 40 |             return &*MAP_TUPLE.1.as_ptr();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cmsg_level` and `cmsg_type` are never read
[INFO] [stdout]    --> src/conn/ancillary.rs:239:15
[INFO] [stdout]     |
[INFO] [stdout] 239 |     Unknown { cmsg_level: i32, cmsg_type: i32 },
[INFO] [stdout]     |     -------   ^^^^^^^^^^       ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AncillaryError` 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: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |           && MAP_TUPLE
[INFO] [stdout]    |  ____________^
[INFO] [stdout] 23 | |             .0
[INFO] [stdout] 24 | |             .compare_exchange(0, 1, Ordering::AcqRel, Ordering::Relaxed)
[INFO] [stdout]    | |________________________________________________________________________^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         MAP_TUPLE.0.store(2, Ordering::Release);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |         return &*MAP_TUPLE.1.as_ptr();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 |     while MAP_TUPLE.0.load(Ordering::Acquire) != 2 {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:34:7
[INFO] [stdout]    |
[INFO] [stdout] 34 |     &*MAP_TUPLE.1.as_ptr()
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let flag = MAP_TUPLE.0.load(Ordering::Acquire);
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]   --> src/routing.rs:40:22
[INFO] [stdout]    |
[INFO] [stdout] 40 |             return &*MAP_TUPLE.1.as_ptr();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/stress.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Io(std::io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestingError` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Io(()),
[INFO] [stdout]    |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/stress.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Bad(MarshalledMessage),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Bad(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/stress.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |     JoinErr(tokio::task::JoinError),
[INFO] [stdout]    |     ------- ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 22 |     JoinErr(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/bench.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Io(std::io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestingError` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Io(()),
[INFO] [stdout]    |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/bench.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Bad(MarshalledMessage),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Bad(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/bench.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |     JoinErr(tokio::task::JoinError),
[INFO] [stdout]    |     ------- ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 24 |     JoinErr(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/rpc_conn.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Io(std::io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestingError` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Io(()),
[INFO] [stdout]    |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/rpc_conn.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Bad(MarshalledMessage),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Bad(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/rpc_conn.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |     JoinErr(tokio::task::JoinError),
[INFO] [stdout]    |     ------- ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 40 |     JoinErr(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.52s
[INFO] running `Command { std: "docker" "inspect" "c9760db525868648c8cccf361ebbb804ae4e83eee05e356c5d3e21f5d9d877b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9760db525868648c8cccf361ebbb804ae4e83eee05e356c5d3e21f5d9d877b6", kill_on_drop: false }`
[INFO] [stdout] c9760db525868648c8cccf361ebbb804ae4e83eee05e356c5d3e21f5d9d877b6
