[INFO] fetching crate objc-macros 0.1.0...
[INFO] testing objc-macros-0.1.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate objc-macros 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate objc-macros 0.1.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "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-3-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abfb32c865186bb972b4e39476108c4579430b10f37754b0639e84becd02ea3c
[INFO] running `Command { std: "docker" "start" "-a" "abfb32c865186bb972b4e39476108c4579430b10f37754b0639e84becd02ea3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abfb32c865186bb972b4e39476108c4579430b10f37754b0639e84becd02ea3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abfb32c865186bb972b4e39476108c4579430b10f37754b0639e84becd02ea3c", kill_on_drop: false }`
[INFO] [stdout] abfb32c865186bb972b4e39476108c4579430b10f37754b0639e84becd02ea3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e00831acae2f93ed95620c14ddb05d63676bf044c7df3f4838432979eb1c3fa9
[INFO] running `Command { std: "docker" "start" "-a" "e00831acae2f93ed95620c14ddb05d63676bf044c7df3f4838432979eb1c3fa9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling objc v0.2.7
[INFO] [stderr]    Compiling 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: `process_field`
[INFO] [stdout]   --> src/class.rs:35:14
[INFO] [stdout]    |
[INFO] [stdout] 35 | macro_rules! process_field {
[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 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/main.rs:26:68
[INFO] [stdout]    |
[INFO] [stdout] 26 |         (sel getThing2:(u32)t1 withOtherThing:(u32)t2 -> u32 with |obj, sel| {
[INFO] [stdout]    |                                                                    ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: `obj` is captured in macro and introduced a unused variable
[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 $body
[INFO] [stdout]    |                                      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    = note: this warning originates in the macro `process_field` which comes from the expansion of the macro `register_class` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sel`
[INFO] [stdout]   --> src/main.rs:26:73
[INFO] [stdout]    |
[INFO] [stdout] 26 |         (sel getThing2:(u32)t1 withOtherThing:(u32)t2 -> u32 with |obj, sel| {
[INFO] [stdout]    |                                                                         ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: `sel` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/class.rs:43:55
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    = note: this warning originates in the macro `process_field` which comes from the expansion of the macro `register_class` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t1`
[INFO] [stdout]   --> src/main.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |         (sel getThing2:(u32)t1 withOtherThing:(u32)t2 -> u32 with |obj, sel| {
[INFO] [stdout]    |                             ^^
[INFO] [stdout]    |
[INFO] [stdout] help: `t1` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/class.rs:43:68
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    = note: this warning originates in the macro `process_field` which comes from the expansion of the macro `register_class` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t2`
[INFO] [stdout]   --> src/main.rs:26:52
[INFO] [stdout]    |
[INFO] [stdout] 26 |         (sel getThing2:(u32)t1 withOtherThing:(u32)t2 -> u32 with |obj, sel| {
[INFO] [stdout]    |                                                    ^^
[INFO] [stdout]    |
[INFO] [stdout] help: `t2` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/class.rs:43:68
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^^
[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]    = note: this warning originates in the macro `process_field` which comes from the expansion of the macro `register_class` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: LC_ALL="C" PATH="/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin:/opt/rustwide/cargo-home/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustcde6wqz/symbols.o" "/opt/rustwide/target/debug/deps/objc_macros-5eff9f1de9f83519.objc_macros.cb088354ec7d5238-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/objc_macros-5eff9f1de9f83519.z6res7ltqr7p2tc.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libobjc-f3358a2e1ce463ba.rlib" "/opt/rustwide/target/debug/deps/libmalloc_buf-d3f52482a1b718b9.rlib" "/opt/rustwide/target/debug/deps/liblibc-b28ada5401fd843a.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-66d8041607d2929b.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-a57e2388c0aea9b1.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-dcd9be90ae2cb505.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-516789932d161b4e.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-1ff34b0cf871cb60.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-0c110dd0650d6cb7.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-a6e97aae2681ad8f.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-b93dac2525ec4d1e.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-ce1d65fb391ae98b.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-8933a2fb54d88492.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-306712ebb1ee1a3f.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-349c574f342b0d30.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-65c422a3ad95273d.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-7e6330a6c0cb9441.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-39c59240bfdfab27.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e9d126c51bb8b2bb.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-5af394d9b1f07bdc.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-693a8f23970c5917.rlib" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-13fc9d1ed9c7a2bc.rlib" "-Wl,-Bdynamic" "-lobjc" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/objc_macros-5eff9f1de9f83519" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libobjc-f3358a2e1ce463ba.rlib(objc-f3358a2e1ce463ba.objc.5f9f694ed7cf154e-cgu.0.rcgu.o): in function `objc::runtime::Object::class':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/objc-0.2.7/src/runtime.rs:464: undefined reference to `object_getClass'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libobjc-f3358a2e1ce463ba.rlib(objc-f3358a2e1ce463ba.objc.5f9f694ed7cf154e-cgu.1.rcgu.o): in function `<objc::rc::strong::StrongPtr as core::ops::drop::Drop>::drop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/objc-0.2.7/src/rc/strong.rs:48: undefined reference to `objc_release'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `objc-macros` (bin "objc-macros") due to 2 previous errors; 10 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e00831acae2f93ed95620c14ddb05d63676bf044c7df3f4838432979eb1c3fa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e00831acae2f93ed95620c14ddb05d63676bf044c7df3f4838432979eb1c3fa9", kill_on_drop: false }`
[INFO] [stdout] e00831acae2f93ed95620c14ddb05d63676bf044c7df3f4838432979eb1c3fa9
[INFO] testing objc-macros-0.1.0 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate objc-macros 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate objc-macros 0.1.0 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "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-3-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13efd384b079b13c801365415dbab5dda2ab23c64b16e70ff57476cbdc122428
[INFO] running `Command { std: "docker" "start" "-a" "13efd384b079b13c801365415dbab5dda2ab23c64b16e70ff57476cbdc122428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13efd384b079b13c801365415dbab5dda2ab23c64b16e70ff57476cbdc122428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13efd384b079b13c801365415dbab5dda2ab23c64b16e70ff57476cbdc122428", kill_on_drop: false }`
[INFO] [stdout] 13efd384b079b13c801365415dbab5dda2ab23c64b16e70ff57476cbdc122428
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe2c4bbd7cbc0bb4ded99b8aa71057f00a0f94fb49733420b892217d8d664f6c
[INFO] running `Command { std: "docker" "start" "-a" "fe2c4bbd7cbc0bb4ded99b8aa71057f00a0f94fb49733420b892217d8d664f6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling objc v0.2.7
[INFO] [stderr]    Compiling 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: `process_field`
[INFO] [stdout]   --> src/class.rs:35:14
[INFO] [stdout]    |
[INFO] [stdout] 35 | macro_rules! process_field {
[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 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/main.rs:26:68
[INFO] [stdout]    |
[INFO] [stdout] 26 |         (sel getThing2:(u32)t1 withOtherThing:(u32)t2 -> u32 with |obj, sel| {
[INFO] [stdout]    |                                                                    ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: `obj` is captured in macro and introduced a unused variable
[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 $body
[INFO] [stdout]    |                                      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    = note: this warning originates in the macro `process_field` which comes from the expansion of the macro `register_class` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sel`
[INFO] [stdout]   --> src/main.rs:26:73
[INFO] [stdout]    |
[INFO] [stdout] 26 |         (sel getThing2:(u32)t1 withOtherThing:(u32)t2 -> u32 with |obj, sel| {
[INFO] [stdout]    |                                                                         ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: `sel` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/class.rs:43:55
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    = note: this warning originates in the macro `process_field` which comes from the expansion of the macro `register_class` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t1`
[INFO] [stdout]   --> src/main.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |         (sel getThing2:(u32)t1 withOtherThing:(u32)t2 -> u32 with |obj, sel| {
[INFO] [stdout]    |                             ^^
[INFO] [stdout]    |
[INFO] [stdout] help: `t1` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/class.rs:43:68
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |       let my_box_class = register_class!(MyBox:NSObject with {
[INFO] [stdout]    |  ________________________-
[INFO] [stdout] 23 | |         (pub width: u32),
[INFO] [stdout] 24 | |         (priv height: u32),
[INFO] [stdout] 25 | |         (sel getThing:withOtherThing: <- my_method),
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }),
[INFO] [stdout] 29 | |     });
[INFO] [stdout]    | |______- in this macro invocation
[INFO] [stdout]    = note: this warning originates in the macro `process_field` which comes from the expansion of the macro `register_class` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t2`
[INFO] [stdout]   --> src/main.rs:26:52
[INFO] [stdout]    |
[INFO] [stdout] 26 |         (sel getThing2:(u32)t1 withOtherThing:(u32)t2 -> u32 with |obj, sel| {
[INFO] [stdout]    |                                                    ^^
[INFO] [stdout]    |
[INFO] [stdout] help: `t2` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/class.rs:43:68
[INFO] [stdout]    |
[INFO] [stdout] 43 |           extern "C" fn selector_fun($obj: &mut Object, $sel: Sel, $($sel_local_name:$sel_type),*) -> $ret_type $body
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^^^^
[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]    = note: this warning originates in the macro `process_field` which comes from the expansion of the macro `register_class` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: LC_ALL="C" PATH="/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin:/opt/rustwide/cargo-home/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustcLioasT/symbols.o" "/opt/rustwide/target/debug/deps/objc_macros-a71fbc55a2d498b9.objc_macros.eb7904b52d20cee6-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/objc_macros-a71fbc55a2d498b9.be4c2g0aqzotab4.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libobjc-aaaec943b92ce7a1.rlib" "/opt/rustwide/target/debug/deps/libmalloc_buf-d542ffe235a3cdb5.rlib" "/opt/rustwide/target/debug/deps/liblibc-57b611451d100ac0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-c3d3f3356130ff3b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-95df42f89c1d4925.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0d2835f8aa540844.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-370839a40e011065.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-9649e5e19a7f7d26.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-947cba7c5cf68c1c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-ced012bebfb4965d.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-ca1b3bc71d252cc2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-fc6e78e39549a6fa.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-339fe9c79c84af4f.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-1568bb4b0be20e00.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-fe9837fa83c5d69d.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-4c6008bb65e308f5.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-c9bf4c045d493bdb.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-e47cddc003bce885.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-ddda47710dcba33d.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-e46bc3da6d7c462f.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8d1ac131d3cb2645.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-b4e1725cffd81412.rlib" "-Wl,-Bdynamic" "-lobjc" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/objc_macros-a71fbc55a2d498b9" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libobjc-aaaec943b92ce7a1.rlib(objc-aaaec943b92ce7a1.objc.9c55af0b69e061eb-cgu.0.rcgu.o): in function `<objc::rc::strong::StrongPtr as core::ops::drop::Drop>::drop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/objc-0.2.7/src/rc/strong.rs:48: undefined reference to `objc_release'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libobjc-aaaec943b92ce7a1.rlib(objc-aaaec943b92ce7a1.objc.9c55af0b69e061eb-cgu.1.rcgu.o): in function `objc::runtime::Object::class':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/objc-0.2.7/src/runtime.rs:464: undefined reference to `object_getClass'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#rustc-link-lib)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `objc-macros` (bin "objc-macros") due to 2 previous errors; 10 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "fe2c4bbd7cbc0bb4ded99b8aa71057f00a0f94fb49733420b892217d8d664f6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe2c4bbd7cbc0bb4ded99b8aa71057f00a0f94fb49733420b892217d8d664f6c", kill_on_drop: false }`
[INFO] [stdout] fe2c4bbd7cbc0bb4ded99b8aa71057f00a0f94fb49733420b892217d8d664f6c
