[INFO] fetching crate objc-macros 0.1.0...
[INFO] checking objc-macros-0.1.0 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate objc-macros 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate objc-macros 0.1.0 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate objc-macros 0.1.0
[INFO] finished tweaking crates.io crate objc-macros 0.1.0
[INFO] tweaked toml for crates.io crate objc-macros 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate objc-macros 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da684e7aacda4e929dbd16ac5af4b8ecfc02822cc7d73c4b929bf3842661b311
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "da684e7aacda4e929dbd16ac5af4b8ecfc02822cc7d73c4b929bf3842661b311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da684e7aacda4e929dbd16ac5af4b8ecfc02822cc7d73c4b929bf3842661b311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da684e7aacda4e929dbd16ac5af4b8ecfc02822cc7d73c4b929bf3842661b311", kill_on_drop: false }`
[INFO] [stdout] da684e7aacda4e929dbd16ac5af4b8ecfc02822cc7d73c4b929bf3842661b311
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5acb8df4d6583466b437f7a869857609d54b22d8a39825706ccc6f31b1630a65
[INFO] running `Command { std: "docker" "start" "-a" "5acb8df4d6583466b437f7a869857609d54b22d8a39825706ccc6f31b1630a65", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]     Checking malloc_buf v0.0.6
[INFO] [stderr]     Checking objc v0.2.7
[INFO] [stderr]     Checking objc-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `objc::declare::ClassDecl`
[INFO] [stdout]  --> src/class.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use objc::declare::ClassDecl;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Class`, `Object`, `Sel`
[INFO] [stdout]  --> src/class.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use objc::runtime::{Class, Object, Sel};
[INFO] [stdout]   |                     ^^^^^  ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/class.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | / macro_rules! process_field {
[INFO] [stdout] 36 | |     ($class_dec:expr, (sel $($sel_name:ident :)* <- $fun_name:expr)) => {{
[INFO] [stdout] 37 | |         unsafe {
[INFO] [stdout] 38 | |             $class_dec.add_method(sel!($($sel_name :)*), $fun_name)
[INFO] [stdout] ...  |
[INFO] [stdout] 61 | |     };
[INFO] [stdout] 62 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]   --> src/class.rs:87:34
[INFO] [stdout]    |
[INFO] [stdout] 87 |         extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sel`
[INFO] [stdout]   --> src/class.rs:87:52
[INFO] [stdout]    |
[INFO] [stdout] 87 |         extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_sel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i1`
[INFO] [stdout]   --> src/class.rs:87:62
[INFO] [stdout]    |
[INFO] [stdout] 87 |         extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                                              ^^ help: if this is intentional, prefix it with an underscore: `_i1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i2`
[INFO] [stdout]   --> src/class.rs:87:71
[INFO] [stdout]    |
[INFO] [stdout] 87 |         extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                                                       ^^ help: if this is intentional, prefix it with an underscore: `_i2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]    --> src/class.rs:43:36
[INFO] [stdout]     |
[INFO] [stdout] 43  |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout] ...
[INFO] [stdout] 92  |           let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]     |  ____________________________-
[INFO] [stdout] 93  | |             (pub width: u32),
[INFO] [stdout] 94  | |             (priv height: u32),
[INFO] [stdout] 95  | |             (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |             }),
[INFO] [stdout] 102 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sel`
[INFO] [stdout]    --> src/class.rs:43:55
[INFO] [stdout]     |
[INFO] [stdout] 43  |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]     |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_sel`
[INFO] [stdout] ...
[INFO] [stdout] 92  |           let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]     |  ____________________________-
[INFO] [stdout] 93  | |             (pub width: u32),
[INFO] [stdout] 94  | |             (priv height: u32),
[INFO] [stdout] 95  | |             (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |             }),
[INFO] [stdout] 102 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cls`
[INFO] [stdout]    --> src/class.rs:52:36
[INFO] [stdout]     |
[INFO] [stdout] 52  |           extern "C" fn selector_fun($cls: &Class, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_cls`
[INFO] [stdout] ...
[INFO] [stdout] 92  |           let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]     |  ____________________________-
[INFO] [stdout] 93  | |             (pub width: u32),
[INFO] [stdout] 94  | |             (priv height: u32),
[INFO] [stdout] 95  | |             (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |             }),
[INFO] [stdout] 102 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sel`
[INFO] [stdout]    --> src/class.rs:52:50
[INFO] [stdout]     |
[INFO] [stdout] 52  |           extern "C" fn selector_fun($cls: &Class, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]     |                                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_sel`
[INFO] [stdout] ...
[INFO] [stdout] 92  |           let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]     |  ____________________________-
[INFO] [stdout] 93  | |             (pub width: u32),
[INFO] [stdout] 94  | |             (priv height: u32),
[INFO] [stdout] 95  | |             (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |             }),
[INFO] [stdout] 102 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> src/class.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     #[macro_use]
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `objc::declare::ClassDecl`
[INFO] [stdout]  --> src/class.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use objc::declare::ClassDecl;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Class`, `Object`, `Sel`
[INFO] [stdout]  --> src/class.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use objc::runtime::{Class, Object, Sel};
[INFO] [stdout]   |                     ^^^^^  ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]   --> src/main.rs:17:30
[INFO] [stdout]    |
[INFO] [stdout] 17 |     extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sel`
[INFO] [stdout]   --> src/main.rs:17:48
[INFO] [stdout]    |
[INFO] [stdout] 17 |     extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                                ^^^ help: if this is intentional, prefix it with an underscore: `_sel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i1`
[INFO] [stdout]   --> src/main.rs:17:58
[INFO] [stdout]    |
[INFO] [stdout] 17 |     extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                                          ^^ help: if this is intentional, prefix it with an underscore: `_i1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i2`
[INFO] [stdout]   --> src/main.rs:17:67
[INFO] [stdout]    |
[INFO] [stdout] 17 |     extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                                                   ^^ help: if this is intentional, prefix it with an underscore: `_i2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]   --> src/class.rs:43:36
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sel`
[INFO] [stdout]   --> src/class.rs:43:55
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_sel`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t1`
[INFO] [stdout]   --> src/class.rs:43:68
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_t1`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t2`
[INFO] [stdout]   --> src/class.rs:43:68
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_t2`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]   --> src/main.rs:17:30
[INFO] [stdout]    |
[INFO] [stdout] 17 |     extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sel`
[INFO] [stdout]   --> src/main.rs:17:48
[INFO] [stdout]    |
[INFO] [stdout] 17 |     extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                                ^^^ help: if this is intentional, prefix it with an underscore: `_sel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i1`
[INFO] [stdout]   --> src/main.rs:17:58
[INFO] [stdout]    |
[INFO] [stdout] 17 |     extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                                          ^^ help: if this is intentional, prefix it with an underscore: `_i1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i2`
[INFO] [stdout]   --> src/main.rs:17:67
[INFO] [stdout]    |
[INFO] [stdout] 17 |     extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                                                   ^^ help: if this is intentional, prefix it with an underscore: `_i2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]   --> src/class.rs:43:36
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sel`
[INFO] [stdout]   --> src/class.rs:43:55
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_sel`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t1`
[INFO] [stdout]   --> src/class.rs:43:68
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_t1`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t2`
[INFO] [stdout]   --> src/class.rs:43:68
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_t2`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]   --> src/class.rs:87:34
[INFO] [stdout]    |
[INFO] [stdout] 87 |         extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sel`
[INFO] [stdout]   --> src/class.rs:87:52
[INFO] [stdout]    |
[INFO] [stdout] 87 |         extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_sel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i1`
[INFO] [stdout]   --> src/class.rs:87:62
[INFO] [stdout]    |
[INFO] [stdout] 87 |         extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                                              ^^ help: if this is intentional, prefix it with an underscore: `_i1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i2`
[INFO] [stdout]   --> src/class.rs:87:71
[INFO] [stdout]    |
[INFO] [stdout] 87 |         extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 {
[INFO] [stdout]    |                                                                       ^^ help: if this is intentional, prefix it with an underscore: `_i2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]    --> src/class.rs:43:36
[INFO] [stdout]     |
[INFO] [stdout] 43  |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout] ...
[INFO] [stdout] 92  |           let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]     |  ____________________________-
[INFO] [stdout] 93  | |             (pub width: u32),
[INFO] [stdout] 94  | |             (priv height: u32),
[INFO] [stdout] 95  | |             (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |             }),
[INFO] [stdout] 102 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sel`
[INFO] [stdout]    --> src/class.rs:43:55
[INFO] [stdout]     |
[INFO] [stdout] 43  |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]     |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_sel`
[INFO] [stdout] ...
[INFO] [stdout] 92  |           let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]     |  ____________________________-
[INFO] [stdout] 93  | |             (pub width: u32),
[INFO] [stdout] 94  | |             (priv height: u32),
[INFO] [stdout] 95  | |             (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |             }),
[INFO] [stdout] 102 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cls`
[INFO] [stdout]    --> src/class.rs:52:36
[INFO] [stdout]     |
[INFO] [stdout] 52  |           extern "C" fn selector_fun($cls: &Class, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_cls`
[INFO] [stdout] ...
[INFO] [stdout] 92  |           let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]     |  ____________________________-
[INFO] [stdout] 93  | |             (pub width: u32),
[INFO] [stdout] 94  | |             (priv height: u32),
[INFO] [stdout] 95  | |             (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |             }),
[INFO] [stdout] 102 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sel`
[INFO] [stdout]    --> src/class.rs:52:50
[INFO] [stdout]     |
[INFO] [stdout] 52  |           extern "C" fn selector_fun($cls: &Class, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]     |                                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_sel`
[INFO] [stdout] ...
[INFO] [stdout] 92  |           let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]     |  ____________________________-
[INFO] [stdout] 93  | |             (pub width: u32),
[INFO] [stdout] 94  | |             (priv height: u32),
[INFO] [stdout] 95  | |             (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |             }),
[INFO] [stdout] 102 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> src/class.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     #[macro_use]
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `Command { std: "docker" "inspect" "5acb8df4d6583466b437f7a869857609d54b22d8a39825706ccc6f31b1630a65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5acb8df4d6583466b437f7a869857609d54b22d8a39825706ccc6f31b1630a65", kill_on_drop: false }`
[INFO] [stdout] 5acb8df4d6583466b437f7a869857609d54b22d8a39825706ccc6f31b1630a65