[INFO] fetching crate objc2 0.4.1...
[INFO] checking objc2-0.4.1 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate objc2 0.4.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate objc2 0.4.1 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate objc2 0.4.1
[INFO] finished tweaking crates.io crate objc2 0.4.1
[INFO] tweaked toml for crates.io crate objc2 0.4.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate objc2 0.4.1 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded objc2-proc-macros v0.1.1
[INFO] [stderr]   Downloaded iai v0.1.1
[INFO] [stderr]   Downloaded malloc_buf v1.0.0
[INFO] [stderr]   Downloaded objc2-encode v3.0.0
[INFO] [stderr]   Downloaded objc-sys v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dd063061bb7c5ae57813a1dd521df7849793a51b361d4a94ba067b714ce71cf
[INFO] running `Command { std: "docker" "start" "-a" "9dd063061bb7c5ae57813a1dd521df7849793a51b361d4a94ba067b714ce71cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dd063061bb7c5ae57813a1dd521df7849793a51b361d4a94ba067b714ce71cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dd063061bb7c5ae57813a1dd521df7849793a51b361d4a94ba067b714ce71cf", kill_on_drop: false }`
[INFO] [stdout] 9dd063061bb7c5ae57813a1dd521df7849793a51b361d4a94ba067b714ce71cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6dd68b8e46a0e51ed97bd6bc3773a9639d073ca034ecbb737edffa810169d31
[INFO] running `Command { std: "docker" "start" "-a" "f6dd68b8e46a0e51ed97bd6bc3773a9639d073ca034ecbb737edffa810169d31", kill_on_drop: false }`
[INFO] [stderr]    Compiling objc-sys v0.3.1
[INFO] [stderr]     Checking objc2-encode v3.0.0
[INFO] [stderr]     Checking iai v0.1.1
[INFO] [stderr]     Checking objc2 v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0455]: link kind `framework` is only supported on Apple targets
[INFO] [stdout]    --> src/lib.rs:226:38
[INFO] [stdout]     |
[INFO] [stdout] 226 |     link(name = "Foundation", kind = "framework")
[INFO] [stdout]     |                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0455`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `objc2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: trait `Abc` is never used
[INFO] [stdout]    --> src/__macro_helpers/mod.rs:934:15
[INFO] [stdout]     |
[INFO] [stdout] 934 |         trait Abc {
[INFO] [stdout]     |               ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/rc/id_traits.rs:153:21
[INFO] [stdout]     |
[INFO] [stdout] 153 |     struct Iter<'a>(&'a Collection);
[INFO] [stdout]     |            ----     ^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 153 |     struct Iter<'a>(());
[INFO] [stdout]     |                     ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/rc/id_traits.rs:171:24
[INFO] [stdout]     |
[INFO] [stdout] 171 |     struct IterMut<'a>(&'a mut Collection);
[INFO] [stdout]     |            -------     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 171 |     struct IterMut<'a>(());
[INFO] [stdout]     |                        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/rc/id_traits.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |     struct IntoIter(Id<Collection>);
[INFO] [stdout]     |            -------- ^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 190 |     struct IntoIter(());
[INFO] [stdout]     |                     ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `foo_class` and `foo_instance` are never used
[INFO] [stdout]    --> src/runtime/protocol_object.rs:207:16
[INFO] [stdout]     |
[INFO] [stdout] 205 |         unsafe trait Foo {
[INFO] [stdout]     |                      --- associated items in this trait
[INFO] [stdout] 206 |             #[method(foo)]
[INFO] [stdout] 207 |             fn foo_class();
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 210 |             fn foo_instance(&self);
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::__extern_protocol_rewrite_methods` which comes from the expansion of the macro `extern_protocol` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `bar_class` and `bar_instance` are never used
[INFO] [stdout]    --> src/runtime/protocol_object.rs:219:16
[INFO] [stdout]     |
[INFO] [stdout] 217 |         unsafe trait Bar: NSObjectProtocol {
[INFO] [stdout]     |                      --- associated items in this trait
[INFO] [stdout] 218 |             #[method(bar)]
[INFO] [stdout] 219 |             fn bar_class();
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |             fn bar_instance(&self);
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::__extern_protocol_rewrite_methods` which comes from the expansion of the macro `extern_protocol` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `foobar_class` and `foobar_instance` are never used
[INFO] [stdout]    --> src/runtime/protocol_object.rs:231:16
[INFO] [stdout]     |
[INFO] [stdout] 229 |         unsafe trait FooBar: Foo + Bar {
[INFO] [stdout]     |                      ------ associated items in this trait
[INFO] [stdout] 230 |             #[method(foobar)]
[INFO] [stdout] 231 |             fn foobar_class();
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 234 |             fn foobar_instance(&self);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::__extern_protocol_rewrite_methods` which comes from the expansion of the macro `extern_protocol` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `foofoobar_class` and `foofoobar_instance` are never used
[INFO] [stdout]    --> src/runtime/protocol_object.rs:243:16
[INFO] [stdout]     |
[INFO] [stdout] 241 |         unsafe trait FooFooBar: Foo + FooBar {
[INFO] [stdout]     |                      --------- associated items in this trait
[INFO] [stdout] 242 |             #[method(foofoobar)]
[INFO] [stdout] 243 |             fn foofoobar_class();
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 246 |             fn foofoobar_instance(&self);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::__extern_protocol_rewrite_methods` which comes from the expansion of the macro `extern_protocol` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0455]: link kind `framework` is only supported on Apple targets
[INFO] [stdout]    --> src/lib.rs:226:38
[INFO] [stdout]     |
[INFO] [stdout] 226 |     link(name = "Foundation", kind = "framework")
[INFO] [stdout]     |                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0455`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `objc2` (lib test) due to 2 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f6dd68b8e46a0e51ed97bd6bc3773a9639d073ca034ecbb737edffa810169d31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6dd68b8e46a0e51ed97bd6bc3773a9639d073ca034ecbb737edffa810169d31", kill_on_drop: false }`
[INFO] [stdout] f6dd68b8e46a0e51ed97bd6bc3773a9639d073ca034ecbb737edffa810169d31
[INFO] checking objc2-0.4.1 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate objc2 0.4.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate objc2 0.4.1 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate objc2 0.4.1
[INFO] finished tweaking crates.io crate objc2 0.4.1
[INFO] tweaked toml for crates.io crate objc2 0.4.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate objc2 0.4.1 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" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab12b094a75f1b93baa9c525793d115ded64b7ae2a324984c5d912f189fef4fa
[INFO] running `Command { std: "docker" "start" "-a" "ab12b094a75f1b93baa9c525793d115ded64b7ae2a324984c5d912f189fef4fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab12b094a75f1b93baa9c525793d115ded64b7ae2a324984c5d912f189fef4fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab12b094a75f1b93baa9c525793d115ded64b7ae2a324984c5d912f189fef4fa", kill_on_drop: false }`
[INFO] [stdout] ab12b094a75f1b93baa9c525793d115ded64b7ae2a324984c5d912f189fef4fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9dfe66edb9326564583402118fa4c2c139e24a6ada8b42e72306bf51bf92858
[INFO] running `Command { std: "docker" "start" "-a" "d9dfe66edb9326564583402118fa4c2c139e24a6ada8b42e72306bf51bf92858", kill_on_drop: false }`
[INFO] [stderr]    Compiling objc-sys v0.3.1
[INFO] [stderr]     Checking objc2-encode v3.0.0
[INFO] [stderr]     Checking iai v0.1.1
[INFO] [stderr]     Checking objc2 v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0455]: link kind `framework` is only supported on Apple targets
[INFO] [stdout]    --> src/lib.rs:226:38
[INFO] [stdout]     |
[INFO] [stdout] 226 |     link(name = "Foundation", kind = "framework")
[INFO] [stdout]     |                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0455`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `objc2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: trait `Abc` is never used
[INFO] [stdout]    --> src/__macro_helpers/mod.rs:934:15
[INFO] [stdout]     |
[INFO] [stdout] 934 |         trait Abc {
[INFO] [stdout]     |               ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/rc/id_traits.rs:153:21
[INFO] [stdout]     |
[INFO] [stdout] 153 |     struct Iter<'a>(&'a Collection);
[INFO] [stdout]     |            ----     ^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 153 |     struct Iter<'a>(());
[INFO] [stdout]     |                     ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/rc/id_traits.rs:171:24
[INFO] [stdout]     |
[INFO] [stdout] 171 |     struct IterMut<'a>(&'a mut Collection);
[INFO] [stdout]     |            -------     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 171 |     struct IterMut<'a>(());
[INFO] [stdout]     |                        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/rc/id_traits.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |     struct IntoIter(Id<Collection>);
[INFO] [stdout]     |            -------- ^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 190 |     struct IntoIter(());
[INFO] [stdout]     |                     ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `foo_class` and `foo_instance` are never used
[INFO] [stdout]    --> src/runtime/protocol_object.rs:207:16
[INFO] [stdout]     |
[INFO] [stdout] 205 |         unsafe trait Foo {
[INFO] [stdout]     |                      --- associated items in this trait
[INFO] [stdout] 206 |             #[method(foo)]
[INFO] [stdout] 207 |             fn foo_class();
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 210 |             fn foo_instance(&self);
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::__extern_protocol_rewrite_methods` which comes from the expansion of the macro `extern_protocol` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `bar_class` and `bar_instance` are never used
[INFO] [stdout]    --> src/runtime/protocol_object.rs:219:16
[INFO] [stdout]     |
[INFO] [stdout] 217 |         unsafe trait Bar: NSObjectProtocol {
[INFO] [stdout]     |                      --- associated items in this trait
[INFO] [stdout] 218 |             #[method(bar)]
[INFO] [stdout] 219 |             fn bar_class();
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |             fn bar_instance(&self);
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::__extern_protocol_rewrite_methods` which comes from the expansion of the macro `extern_protocol` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `foobar_class` and `foobar_instance` are never used
[INFO] [stdout]    --> src/runtime/protocol_object.rs:231:16
[INFO] [stdout]     |
[INFO] [stdout] 229 |         unsafe trait FooBar: Foo + Bar {
[INFO] [stdout]     |                      ------ associated items in this trait
[INFO] [stdout] 230 |             #[method(foobar)]
[INFO] [stdout] 231 |             fn foobar_class();
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 234 |             fn foobar_instance(&self);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::__extern_protocol_rewrite_methods` which comes from the expansion of the macro `extern_protocol` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `foofoobar_class` and `foofoobar_instance` are never used
[INFO] [stdout]    --> src/runtime/protocol_object.rs:243:16
[INFO] [stdout]     |
[INFO] [stdout] 241 |         unsafe trait FooFooBar: Foo + FooBar {
[INFO] [stdout]     |                      --------- associated items in this trait
[INFO] [stdout] 242 |             #[method(foofoobar)]
[INFO] [stdout] 243 |             fn foofoobar_class();
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 246 |             fn foofoobar_instance(&self);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::__extern_protocol_rewrite_methods` which comes from the expansion of the macro `extern_protocol` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0455]: link kind `framework` is only supported on Apple targets
[INFO] [stdout]    --> src/lib.rs:226:38
[INFO] [stdout]     |
[INFO] [stdout] 226 |     link(name = "Foundation", kind = "framework")
[INFO] [stdout]     |                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0455`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `objc2` (lib test) due to 2 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d9dfe66edb9326564583402118fa4c2c139e24a6ada8b42e72306bf51bf92858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9dfe66edb9326564583402118fa4c2c139e24a6ada8b42e72306bf51bf92858", kill_on_drop: false }`
[INFO] [stdout] d9dfe66edb9326564583402118fa4c2c139e24a6ada8b42e72306bf51bf92858
