[INFO] fetching crate block2 0.2.0-alpha.8...
[INFO] documenting block2-0.2.0-alpha.8 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate block2 0.2.0-alpha.8 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate block2 0.2.0-alpha.8 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate block2 0.2.0-alpha.8
[INFO] finished tweaking crates.io crate block2 0.2.0-alpha.8
[INFO] tweaked toml for crates.io crate block2 0.2.0-alpha.8 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded block-sys v0.2.0
[INFO] [stderr]   Downloaded objc-sys v0.3.0
[INFO] [stderr]   Downloaded objc2-encode v2.0.0-pre.4
[INFO] [stderr]   Downloaded objc2 v0.3.0-beta.5
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40ccb5240455ff6f85aea4f60d544906a848f163a80cceeec6b39266267f2420
[INFO] running `Command { std: "docker" "start" "-a" "40ccb5240455ff6f85aea4f60d544906a848f163a80cceeec6b39266267f2420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40ccb5240455ff6f85aea4f60d544906a848f163a80cceeec6b39266267f2420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40ccb5240455ff6f85aea4f60d544906a848f163a80cceeec6b39266267f2420", kill_on_drop: false }`
[INFO] [stdout] 40ccb5240455ff6f85aea4f60d544906a848f163a80cceeec6b39266267f2420
[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=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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0b934a96de27359a1fed8a517c8eaa96456796e2c0700030017d3f6bfe8a50e
[INFO] running `Command { std: "docker" "start" "-a" "c0b934a96de27359a1fed8a517c8eaa96456796e2c0700030017d3f6bfe8a50e", kill_on_drop: false }`
[INFO] [stderr]    Compiling objc-sys v0.3.0
[INFO] [stderr]    Compiling block-sys v0.2.0
[INFO] [stderr]     Checking objc2-encode v2.0.0-pre.4
[INFO] [stderr]     Checking objc2 v0.3.0-beta.5
[INFO] [stdout] error[E0455]: link kind `framework` is only supported on Apple targets
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/objc2-0.3.0-beta.5/src/lib.rs:230:38
[INFO] [stdout]     |
[INFO] [stdout] 230 |     link(name = "Foundation", kind = "framework")
[INFO] [stdout]     |                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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] running `Command { std: "docker" "inspect" "c0b934a96de27359a1fed8a517c8eaa96456796e2c0700030017d3f6bfe8a50e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0b934a96de27359a1fed8a517c8eaa96456796e2c0700030017d3f6bfe8a50e", kill_on_drop: false }`
[INFO] [stdout] c0b934a96de27359a1fed8a517c8eaa96456796e2c0700030017d3f6bfe8a50e
