[INFO] fetching crate mod_trait_exerci 0.2.1...
[INFO] testing mod_trait_exerci-0.2.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate mod_trait_exerci 0.2.1 into /workspace/builds/worker-47/source
[INFO] validating manifest of crates.io crate mod_trait_exerci 0.2.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mod_trait_exerci 0.2.1
[INFO] finished tweaking crates.io crate mod_trait_exerci 0.2.1
[INFO] tweaked toml for crates.io crate mod_trait_exerci 0.2.1 written to /workspace/builds/worker-47/source/Cargo.toml
[INFO] crate crates.io crate mod_trait_exerci 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 620718f1e412e993d51074c1fe7e7b8551018b063fbea203c7262c68b6e08e8f
[INFO] running `Command { std: "docker" "start" "-a" "620718f1e412e993d51074c1fe7e7b8551018b063fbea203c7262c68b6e08e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "620718f1e412e993d51074c1fe7e7b8551018b063fbea203c7262c68b6e08e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "620718f1e412e993d51074c1fe7e7b8551018b063fbea203c7262c68b6e08e8f", kill_on_drop: false }`
[INFO] [stdout] 620718f1e412e993d51074c1fe7e7b8551018b063fbea203c7262c68b6e08e8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e9fa84160aa09314cf808ebc5a0fd14941295529dbbc1a268c18897a33a233a
[INFO] running `Command { std: "docker" "start" "-a" "0e9fa84160aa09314cf808ebc5a0fd14941295529dbbc1a268c18897a33a233a", kill_on_drop: false }`
[INFO] [stderr]    Compiling mod_trait_exerci v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_bare/mod.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub data: (u32),
[INFO] [stdout]   |               ^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_bare/mod.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn get_tuple(&self) -> (u32) {
[INFO] [stdout]   |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/mod_bare/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |         (self.data)
[INFO] [stdout]   |         ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_bare/mod.rs:16:32
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get_tuple(&self) -> (u32) {
[INFO] [stdout]    |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mod_bare/mod.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         (self.0)
[INFO] [stdout]    |         ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_where_fn.rs:4:61
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_static_type_ref<Type: TraitCanal>(typ: &Type) -> (u32) {
[INFO] [stdout]   |                                                             ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_where_fn.rs:8:60
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_static_type_ref_with_where<Type>(typ: &Type) -> (u32)
[INFO] [stdout]   |                                                            ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_static_fn.rs:17:61
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn get_static_type_ref<Type: TraitCanal>(typ: &Type) -> (u32) {
[INFO] [stdout]    |                                                             ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mod_static_fn.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     (typ.get_tuple())
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_box_static_fn.rs:4:65
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_static_box_ref<Type: TraitCanal>(typ: &Box<Type>) -> (u32) {
[INFO] [stdout]   |                                                                 ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/mod_box_static_fn.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     (typ.get_tuple())
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_box_static_fn.rs:8:60
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_static_box<Type: TraitCanal>(typ: Box<Type>) -> (u32) {
[INFO] [stdout]   |                                                            ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/mod_box_static_fn.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     (typ.get_tuple())
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_box_static_fn.rs:12:79
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn get_static_box_type_ref<Type: TraitCanal + ?Sized>(typ: Box<&Type>) -> (u32) {
[INFO] [stdout]    |                                                                               ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mod_box_static_fn.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     (typ.get_tuple())
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_box_static_fn.rs:16:84
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn get_static_box_and_type_ref<Type: TraitCanal + ?Sized>(typ: &Box<&Type>) -> (u32) {
[INFO] [stdout]    |                                                                                    ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mod_box_static_fn.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     (typ.get_tuple())
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_dynamic_fn.rs:4:57
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_dynamic_trait_ref(canal: &dyn TraitCanal) -> (u32) {
[INFO] [stdout]   |                                                         ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/mod_dynamic_fn.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     (canal.get_tuple())
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_box_dynamic_fn.rs:4:55
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_dynamic_box(canal: Box<dyn TraitCanal>) -> (u32) {
[INFO] [stdout]   |                                                       ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_box_dynamic_fn.rs:8:66
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_dynamic_box_trait_ref(canal: Box<&dyn TraitCanal>) -> (u32) {
[INFO] [stdout]   |                                                                  ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_box_dynamic_fn.rs:12:60
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn get_dynamic_box_ref(canal: &Box<dyn TraitCanal>) -> (u32) {
[INFO] [stdout]    |                                                            ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_box_dynamic_fn.rs:16:71
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn get_dynamic_box_and_trait_ref(canal: &Box<&dyn TraitCanal>) -> (u32) {
[INFO] [stdout]    |                                                                       ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 |         data: (u32),
[INFO] [stdout]    |               ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:20:32
[INFO] [stdout]    |
[INFO] [stdout] 20 |         fn get_tuple(&self) -> (u32);
[INFO] [stdout]    |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:28:32
[INFO] [stdout]    |
[INFO] [stdout] 28 |         fn get_tuple(&self) -> (u32) {
[INFO] [stdout]    |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/lib.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             (self.data)
[INFO] [stdout]    |             ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |         fn get_tuple(&self) -> (u32) {
[INFO] [stdout]    |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/lib.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             (self.0)
[INFO] [stdout]    |             ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "0e9fa84160aa09314cf808ebc5a0fd14941295529dbbc1a268c18897a33a233a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e9fa84160aa09314cf808ebc5a0fd14941295529dbbc1a268c18897a33a233a", kill_on_drop: false }`
[INFO] [stdout] 0e9fa84160aa09314cf808ebc5a0fd14941295529dbbc1a268c18897a33a233a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c297593458fac486508aec266b58d9b8235ed7383da6536a27cf7ffa20a13f2
[INFO] running `Command { std: "docker" "start" "-a" "5c297593458fac486508aec266b58d9b8235ed7383da6536a27cf7ffa20a13f2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_bare/mod.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub data: (u32),
[INFO] [stdout]   |               ^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_bare/mod.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn get_tuple(&self) -> (u32) {
[INFO] [stdout]   |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/mod_bare/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |         (self.data)
[INFO] [stdout]   |         ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_bare/mod.rs:16:32
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get_tuple(&self) -> (u32) {
[INFO] [stdout]    |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mod_bare/mod.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         (self.0)
[INFO] [stdout]    |         ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_where_fn.rs:4:61
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_static_type_ref<Type: TraitCanal>(typ: &Type) -> (u32) {
[INFO] [stdout]   |                                                             ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_where_fn.rs:8:60
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_static_type_ref_with_where<Type>(typ: &Type) -> (u32)
[INFO] [stdout]   |                                                            ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_static_fn.rs:17:61
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn get_static_type_ref<Type: TraitCanal>(typ: &Type) -> (u32) {
[INFO] [stdout]    |                                                             ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mod_static_fn.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     (typ.get_tuple())
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_box_static_fn.rs:4:65
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_static_box_ref<Type: TraitCanal>(typ: &Box<Type>) -> (u32) {
[INFO] [stdout]   |                                                                 ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/mod_box_static_fn.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     (typ.get_tuple())
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_box_static_fn.rs:8:60
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_static_box<Type: TraitCanal>(typ: Box<Type>) -> (u32) {
[INFO] [stdout]   |                                                            ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/mod_box_static_fn.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     (typ.get_tuple())
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_box_static_fn.rs:12:79
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn get_static_box_type_ref<Type: TraitCanal + ?Sized>(typ: Box<&Type>) -> (u32) {
[INFO] [stdout]    |                                                                               ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mod_box_static_fn.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     (typ.get_tuple())
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_box_static_fn.rs:16:84
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn get_static_box_and_type_ref<Type: TraitCanal + ?Sized>(typ: &Box<&Type>) -> (u32) {
[INFO] [stdout]    |                                                                                    ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mod_box_static_fn.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     (typ.get_tuple())
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_dynamic_fn.rs:4:57
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_dynamic_trait_ref(canal: &dyn TraitCanal) -> (u32) {
[INFO] [stdout]   |                                                         ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/mod_dynamic_fn.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     (canal.get_tuple())
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_box_dynamic_fn.rs:4:55
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_dynamic_box(canal: Box<dyn TraitCanal>) -> (u32) {
[INFO] [stdout]   |                                                       ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_box_dynamic_fn.rs:8:66
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_dynamic_box_trait_ref(canal: Box<&dyn TraitCanal>) -> (u32) {
[INFO] [stdout]   |                                                                  ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_box_dynamic_fn.rs:12:60
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn get_dynamic_box_ref(canal: &Box<dyn TraitCanal>) -> (u32) {
[INFO] [stdout]    |                                                            ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_box_dynamic_fn.rs:16:71
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn get_dynamic_box_and_trait_ref(canal: &Box<&dyn TraitCanal>) -> (u32) {
[INFO] [stdout]    |                                                                       ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 |         data: (u32),
[INFO] [stdout]    |               ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:20:32
[INFO] [stdout]    |
[INFO] [stdout] 20 |         fn get_tuple(&self) -> (u32);
[INFO] [stdout]    |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:28:32
[INFO] [stdout]    |
[INFO] [stdout] 28 |         fn get_tuple(&self) -> (u32) {
[INFO] [stdout]    |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/lib.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             (self.data)
[INFO] [stdout]    |             ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |         fn get_tuple(&self) -> (u32) {
[INFO] [stdout]    |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/lib.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             (self.0)
[INFO] [stdout]    |             ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mod_trait_exerci v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> examples/trait_dispatch_concrete.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 |     data: (u8)
[INFO] [stdout]   |           ^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> examples/trait_dispatch_concrete.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn _fn(&self) -> (u8);
[INFO] [stdout]   |                      ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> examples/trait_dispatch_concrete.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn _fn(&self) -> (u8) { (self.data) }
[INFO] [stdout]    |                      ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> examples/trait_dispatch_concrete.rs:12:29
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn _fn(&self) -> (u8) { (self.data) }
[INFO] [stdout]    |                             ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> examples/trait_dispatch_concrete.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn _fn(&self) -> (u8) { (self.0) }
[INFO] [stdout]    |                      ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> examples/trait_dispatch_concrete.rs:18:29
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn _fn(&self) -> (u8) { (self.0) }
[INFO] [stdout]    |                             ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_bare/mod.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub data: (u32),
[INFO] [stdout]   |               ^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_bare/mod.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn get_tuple(&self) -> (u32) {
[INFO] [stdout]   |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/mod_bare/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |         (self.data)
[INFO] [stdout]   |         ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_bare/mod.rs:16:32
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get_tuple(&self) -> (u32) {
[INFO] [stdout]    |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mod_bare/mod.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         (self.0)
[INFO] [stdout]    |         ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_where_fn.rs:4:61
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_static_type_ref<Type: TraitCanal>(typ: &Type) -> (u32) {
[INFO] [stdout]   |                                                             ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_where_fn.rs:8:60
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_static_type_ref_with_where<Type>(typ: &Type) -> (u32)
[INFO] [stdout]   |                                                            ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_static_fn.rs:17:61
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn get_static_type_ref<Type: TraitCanal>(typ: &Type) -> (u32) {
[INFO] [stdout]    |                                                             ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mod_static_fn.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     (typ.get_tuple())
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_box_static_fn.rs:4:65
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_static_box_ref<Type: TraitCanal>(typ: &Box<Type>) -> (u32) {
[INFO] [stdout]   |                                                                 ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/mod_box_static_fn.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     (typ.get_tuple())
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_box_static_fn.rs:8:60
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_static_box<Type: TraitCanal>(typ: Box<Type>) -> (u32) {
[INFO] [stdout]   |                                                            ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/mod_box_static_fn.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     (typ.get_tuple())
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_box_static_fn.rs:12:79
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn get_static_box_type_ref<Type: TraitCanal + ?Sized>(typ: Box<&Type>) -> (u32) {
[INFO] [stdout]    |                                                                               ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mod_box_static_fn.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     (typ.get_tuple())
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_box_static_fn.rs:16:84
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn get_static_box_and_type_ref<Type: TraitCanal + ?Sized>(typ: &Box<&Type>) -> (u32) {
[INFO] [stdout]    |                                                                                    ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/mod_box_static_fn.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     (typ.get_tuple())
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_dynamic_fn.rs:4:57
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_dynamic_trait_ref(canal: &dyn TraitCanal) -> (u32) {
[INFO] [stdout]   |                                                         ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/mod_dynamic_fn.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     (canal.get_tuple())
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> examples/simple_dynamic_dispatch.rs:3:34
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fn static_dispatch(&self) -> (u8);
[INFO] [stdout]   |                                  ^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_box_dynamic_fn.rs:4:55
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_dynamic_box(canal: Box<dyn TraitCanal>) -> (u32) {
[INFO] [stdout]   |                                                       ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/mod_box_dynamic_fn.rs:8:66
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_dynamic_box_trait_ref(canal: Box<&dyn TraitCanal>) -> (u32) {
[INFO] [stdout]   |                                                                  ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_box_dynamic_fn.rs:12:60
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn get_dynamic_box_ref(canal: &Box<dyn TraitCanal>) -> (u32) {
[INFO] [stdout]    |                                                            ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> examples/simple_dynamic_dispatch.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Struct {data: (u8)}
[INFO] [stdout]   |                      ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/mod_box_dynamic_fn.rs:16:71
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn get_dynamic_box_and_trait_ref(canal: &Box<&dyn TraitCanal>) -> (u32) {
[INFO] [stdout]    |                                                                       ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> examples/simple_dynamic_dispatch.rs:10:34
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn static_dispatch(&self) -> (u8) {
[INFO] [stdout]    |                                  ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 |         data: (u32),
[INFO] [stdout]    |               ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> examples/simple_dynamic_dispatch.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (self.data)
[INFO] [stdout]    |         ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:20:32
[INFO] [stdout]    |
[INFO] [stdout] 20 |         fn get_tuple(&self) -> (u32);
[INFO] [stdout]    |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:28:32
[INFO] [stdout]    |
[INFO] [stdout] 28 |         fn get_tuple(&self) -> (u32) {
[INFO] [stdout]    |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/lib.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             (self.data)
[INFO] [stdout]    |             ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |         fn get_tuple(&self) -> (u32) {
[INFO] [stdout]    |                                ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/lib.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             (self.0)
[INFO] [stdout]    |             ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> examples/simple_static_dispatch.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 |     data: (u8)
[INFO] [stdout]   |           ^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> examples/simple_static_dispatch.rs:8:34
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn static_dispatch(&self) -> (u8) { (self.data) }
[INFO] [stdout]   |                                  ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> examples/simple_static_dispatch.rs:8:41
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn static_dispatch(&self) -> (u8) { (self.data) }
[INFO] [stdout]   |                                         ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "5c297593458fac486508aec266b58d9b8235ed7383da6536a27cf7ffa20a13f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c297593458fac486508aec266b58d9b8235ed7383da6536a27cf7ffa20a13f2", kill_on_drop: false }`
[INFO] [stdout] 5c297593458fac486508aec266b58d9b8235ed7383da6536a27cf7ffa20a13f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 920552d445524a0a2cc32abe47ee0e0631e30295bf2eb3305fb6f89761270036
[INFO] running `Command { std: "docker" "start" "-a" "920552d445524a0a2cc32abe47ee0e0631e30295bf2eb3305fb6f89761270036", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/mod_bare/mod.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 |     pub data: (u32),
[INFO] [stderr]   |               ^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/mod_bare/mod.rs:7:32
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn get_tuple(&self) -> (u32) {
[INFO] [stderr]   |                                ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> src/mod_bare/mod.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |         (self.data)
[INFO] [stderr]   |         ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/mod_bare/mod.rs:16:32
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn get_tuple(&self) -> (u32) {
[INFO] [stderr]    |                                ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/mod_bare/mod.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         (self.0)
[INFO] [stderr]    |         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/mod_where_fn.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_static_type_ref<Type: TraitCanal>(typ: &Type) -> (u32) {
[INFO] [stderr]   |                                                             ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/mod_where_fn.rs:8:60
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn get_static_type_ref_with_where<Type>(typ: &Type) -> (u32)
[INFO] [stderr]   |                                                            ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/mod_static_fn.rs:17:61
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn get_static_type_ref<Type: TraitCanal>(typ: &Type) -> (u32) {
[INFO] [stderr]    |                                                             ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/mod_static_fn.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     (typ.get_tuple())
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/mod_box_static_fn.rs:4:65
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_static_box_ref<Type: TraitCanal>(typ: &Box<Type>) -> (u32) {
[INFO] [stderr]   |                                                                 ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> src/mod_box_static_fn.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     (typ.get_tuple())
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/mod_box_static_fn.rs:8:60
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn get_static_box<Type: TraitCanal>(typ: Box<Type>) -> (u32) {
[INFO] [stderr]   |                                                            ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> src/mod_box_static_fn.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     (typ.get_tuple())
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/mod_box_static_fn.rs:12:79
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn get_static_box_type_ref<Type: TraitCanal + ?Sized>(typ: Box<&Type>) -> (u32) {
[INFO] [stderr]    |                                                                               ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/mod_box_static_fn.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     (typ.get_tuple())
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/mod_box_static_fn.rs:16:84
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn get_static_box_and_type_ref<Type: TraitCanal + ?Sized>(typ: &Box<&Type>) -> (u32) {
[INFO] [stderr]    |                                                                                    ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/mod_box_static_fn.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     (typ.get_tuple())
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/mod_dynamic_fn.rs:4:57
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_dynamic_trait_ref(canal: &dyn TraitCanal) -> (u32) {
[INFO] [stderr]   |                                                         ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> src/mod_dynamic_fn.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     (canal.get_tuple())
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/mod_box_dynamic_fn.rs:4:55
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_dynamic_box(canal: Box<dyn TraitCanal>) -> (u32) {
[INFO] [stderr]   |                                                       ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/mod_box_dynamic_fn.rs:8:66
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn get_dynamic_box_trait_ref(canal: Box<&dyn TraitCanal>) -> (u32) {
[INFO] [stderr]   |                                                                  ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/mod_box_dynamic_fn.rs:12:60
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn get_dynamic_box_ref(canal: &Box<dyn TraitCanal>) -> (u32) {
[INFO] [stderr]    |                                                            ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/mod_box_dynamic_fn.rs:16:71
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn get_dynamic_box_and_trait_ref(canal: &Box<&dyn TraitCanal>) -> (u32) {
[INFO] [stderr]    |                                                                       ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 |         data: (u32),
[INFO] [stderr]    |               ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |         fn get_tuple(&self) -> (u32);
[INFO] [stderr]    |                                ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:28:32
[INFO] [stderr]    |
[INFO] [stderr] 28 |         fn get_tuple(&self) -> (u32) {
[INFO] [stderr]    |                                ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/lib.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |             (self.data)
[INFO] [stderr]    |             ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:39:32
[INFO] [stderr]    |
[INFO] [stderr] 39 |         fn get_tuple(&self) -> (u32) {
[INFO] [stderr]    |                                ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/lib.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             (self.0)
[INFO] [stderr]    |             ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: `mod_trait_exerci` (lib) generated 29 warnings
[INFO] [stderr] warning: `mod_trait_exerci` (lib test) generated 29 warnings (29 duplicates)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> examples/simple_dynamic_dispatch.rs:3:34
[INFO] [stderr]   |
[INFO] [stderr] 3 |     fn static_dispatch(&self) -> (u8);
[INFO] [stderr]   |                                  ^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> examples/simple_dynamic_dispatch.rs:7:22
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Struct {data: (u8)}
[INFO] [stderr]   |                      ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> examples/simple_dynamic_dispatch.rs:10:34
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn static_dispatch(&self) -> (u8) {
[INFO] [stderr]    |                                  ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> examples/simple_dynamic_dispatch.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         (self.data)
[INFO] [stderr]    |         ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> examples/trait_dispatch_concrete.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 |     data: (u8)
[INFO] [stderr]   |           ^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> examples/trait_dispatch_concrete.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn _fn(&self) -> (u8);
[INFO] [stderr]   |                      ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> examples/trait_dispatch_concrete.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn _fn(&self) -> (u8) { (self.data) }
[INFO] [stderr]    |                      ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> examples/trait_dispatch_concrete.rs:12:29
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn _fn(&self) -> (u8) { (self.data) }
[INFO] [stderr]    |                             ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> examples/trait_dispatch_concrete.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn _fn(&self) -> (u8) { (self.0) }
[INFO] [stderr]    |                      ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> examples/trait_dispatch_concrete.rs:18:29
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn _fn(&self) -> (u8) { (self.0) }
[INFO] [stderr]    |                             ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> examples/simple_static_dispatch.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 |     data: (u8)
[INFO] [stderr]   |           ^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> examples/simple_static_dispatch.rs:8:34
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn static_dispatch(&self) -> (u8) { (self.data) }
[INFO] [stderr]   |                                  ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> examples/simple_static_dispatch.rs:8:41
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn static_dispatch(&self) -> (u8) { (self.data) }
[INFO] [stderr]   |                                         ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: `mod_trait_exerci` (example "simple_dynamic_dispatch") generated 4 warnings
[INFO] [stderr] warning: `mod_trait_exerci` (example "trait_dispatch_concrete") generated 6 warnings
[INFO] [stderr] warning: `mod_trait_exerci` (example "simple_static_dispatch") generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mod_trait_exerci-2f118524b4715ebe)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/u_for_box_dynamic_hello.rs (/opt/rustwide/target/debug/deps/u_for_box_dynamic_hello-d86a5d478f5cfe71)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::struct_dynamic_box ... ok
[INFO] [stdout] test tests::struct_dynamic_box_and_trait ... ok
[INFO] [stdout] test tests::tulpe_dynamic_box ... ok
[INFO] [stdout] test tests::tulpe_dynamic_box_trait ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/u_for_box_static_hello.rs (/opt/rustwide/target/debug/deps/u_for_box_static_hello-e0f8e00ed124916b)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running tests/u_for_mod_bare.rs (/opt/rustwide/target/debug/deps/u_for_mod_bare-34c931c25b2a5868)
[INFO] [stdout] test tests::struct_static_box ... ok
[INFO] [stdout] test tests::tuple_static_box ... ok
[INFO] [stdout] test tests::tuple_static_box_type ... ok
[INFO] [stdout] test tests::struct_static_box_ref_and_type_ref ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::it_works_with_struct ... ok
[INFO] [stdout] test tests::it_works_with_struct_default ... ok
[INFO] [stdout] test tests::it_works_with_struct_struct ... ok
[INFO] [stdout] test tests::it_works_with_tuple ... ok
[INFO] [stdout] test tests::it_works_with_tuple_default ... ok
[INFO] [stdout] test tests::it_works_with_tuple_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/u_for_mod_trait_fn.rs (/opt/rustwide/target/debug/deps/u_for_mod_trait_fn-fdf824c444b7079a)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running tests/u_for_mod_trait_instance.rs (/opt/rustwide/target/debug/deps/u_for_mod_trait_instance-ffbc6e078fdc5313)
[INFO] [stdout] test tests::it_works_with_fn_struct_default ... ok
[INFO] [stdout] test tests::it_works_with_fn_tuple_default ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::it_works_with_struct ... ok
[INFO] [stdout] test tests::it_works_with_struct_default ... ok
[INFO] [stdout] test tests::it_works_with_struct_new ... ok
[INFO] [stdout] test tests::it_works_with_tuple ... ok
[INFO] [stdout] test tests::it_works_with_tuple_default ... ok
[INFO] [stdout] test tests::it_works_with_tuple_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mod_trait_exerci
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_bare/mod.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 |     pub data: (u32),
[INFO] [stderr]   |               ^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_bare/mod.rs:7:32
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn get_tuple(&self) -> (u32) {
[INFO] [stderr]   |                                ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_bare/mod.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |         (self.data)
[INFO] [stderr]   |         ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/mod_bare/mod.rs:16:32
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn get_tuple(&self) -> (u32) {
[INFO] [stderr]    |                                ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/mod_bare/mod.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         (self.0)
[INFO] [stderr]    |         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_where_fn.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_static_type_ref<Type: TraitCanal>(typ: &Type) -> (u32) {
[INFO] [stderr]   |                                                             ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_where_fn.rs:8:60
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn get_static_type_ref_with_where<Type>(typ: &Type) -> (u32)
[INFO] [stderr]   |                                                            ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/mod_static_fn.rs:17:61
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn get_static_type_ref<Type: TraitCanal>(typ: &Type) -> (u32) {
[INFO] [stderr]    |                                                             ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/mod_static_fn.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     (typ.get_tuple())
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_box_static_fn.rs:4:65
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_static_box_ref<Type: TraitCanal>(typ: &Box<Type>) -> (u32) {
[INFO] [stderr]   |                                                                 ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_box_static_fn.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     (typ.get_tuple())
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_box_static_fn.rs:8:60
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn get_static_box<Type: TraitCanal>(typ: Box<Type>) -> (u32) {
[INFO] [stderr]   |                                                            ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_box_static_fn.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     (typ.get_tuple())
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/mod_box_static_fn.rs:12:79
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn get_static_box_type_ref<Type: TraitCanal + ?Sized>(typ: Box<&Type>) -> (u32) {
[INFO] [stderr]    |                                                                               ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/mod_box_static_fn.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     (typ.get_tuple())
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/mod_box_static_fn.rs:16:84
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn get_static_box_and_type_ref<Type: TraitCanal + ?Sized>(typ: &Box<&Type>) -> (u32) {
[INFO] [stderr]    |                                                                                    ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/mod_box_static_fn.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     (typ.get_tuple())
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_dynamic_fn.rs:4:57
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_dynamic_trait_ref(canal: &dyn TraitCanal) -> (u32) {
[INFO] [stderr]   |                                                         ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_dynamic_fn.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     (canal.get_tuple())
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_box_dynamic_fn.rs:4:55
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_dynamic_box(canal: Box<dyn TraitCanal>) -> (u32) {
[INFO] [stderr]   |                                                       ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> /opt/rustwide/workdir/src/mod_box_dynamic_fn.rs:8:66
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn get_dynamic_box_trait_ref(canal: Box<&dyn TraitCanal>) -> (u32) {
[INFO] [stderr]   |                                                                  ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/mod_box_dynamic_fn.rs:12:60
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn get_dynamic_box_ref(canal: &Box<dyn TraitCanal>) -> (u32) {
[INFO] [stderr]    |                                                            ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/mod_box_dynamic_fn.rs:16:71
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn get_dynamic_box_and_trait_ref(canal: &Box<&dyn TraitCanal>) -> (u32) {
[INFO] [stderr]    |                                                                       ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 |         data: (u32),
[INFO] [stderr]    |               ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |         fn get_tuple(&self) -> (u32);
[INFO] [stderr]    |                                ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:28:32
[INFO] [stderr]    |
[INFO] [stderr] 28 |         fn get_tuple(&self) -> (u32) {
[INFO] [stderr]    |                                ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |             (self.data)
[INFO] [stderr]    |             ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:39:32
[INFO] [stderr]    |
[INFO] [stderr] 39 |         fn get_tuple(&self) -> (u32) {
[INFO] [stderr]    |                                ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             (self.0)
[INFO] [stderr]    |             ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "920552d445524a0a2cc32abe47ee0e0631e30295bf2eb3305fb6f89761270036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "920552d445524a0a2cc32abe47ee0e0631e30295bf2eb3305fb6f89761270036", kill_on_drop: false }`
[INFO] [stdout] 920552d445524a0a2cc32abe47ee0e0631e30295bf2eb3305fb6f89761270036