[INFO] fetching crate objrs 0.0.2...
[INFO] testing objrs-0.0.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate objrs 0.0.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate objrs 0.0.2 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate objrs 0.0.2
[INFO] finished tweaking crates.io crate objrs 0.0.2
[INFO] tweaked toml for crates.io crate objrs 0.0.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19b8df75fbc5e2e28f76f86941cf5c64468af37db0e1e83a9e79aef2ad5a20d5
[INFO] running `Command { std: "docker" "start" "-a" "19b8df75fbc5e2e28f76f86941cf5c64468af37db0e1e83a9e79aef2ad5a20d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19b8df75fbc5e2e28f76f86941cf5c64468af37db0e1e83a9e79aef2ad5a20d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19b8df75fbc5e2e28f76f86941cf5c64468af37db0e1e83a9e79aef2ad5a20d5", kill_on_drop: false }`
[INFO] [stdout] 19b8df75fbc5e2e28f76f86941cf5c64468af37db0e1e83a9e79aef2ad5a20d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7608e49e80fea284c364f11760d9abf226984104542d597358db699cd7dd7984
[INFO] running `Command { std: "docker" "start" "-a" "7608e49e80fea284c364f11760d9abf226984104542d597358db699cd7dd7984", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling objrs_runtime v0.0.2
[INFO] [stdout] error: cannot find macro `global_asm` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/objrs_runtime-0.0.2/src/objc_exception.rs:144:1
[INFO] [stdout]     |
[INFO] [stdout] 144 | global_asm!{r#"
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider importing this macro:
[INFO] [stdout]             core::arch::global_asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/objrs_runtime-0.0.2/src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(global_asm, untagged_unions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0740]: unions cannot contain fields that may need dropping
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/objrs_runtime-0.0.2/src/objc_exception.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     f: F,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: a type is guaranteed not to need dropping when it implements `Copy`, or when it is the special `ManuallyDrop<_>` type
[INFO] [stdout] help: when the type does not implement `Copy`, wrap it inside a `ManuallyDrop<_>` and ensure it is manually dropped
[INFO] [stdout]    |
[INFO] [stdout] 96 |     f: std::mem::ManuallyDrop<F>,
[INFO] [stdout]    |        +++++++++++++++++++++++ +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0740.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `objrs_runtime` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7608e49e80fea284c364f11760d9abf226984104542d597358db699cd7dd7984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7608e49e80fea284c364f11760d9abf226984104542d597358db699cd7dd7984", kill_on_drop: false }`
[INFO] [stdout] 7608e49e80fea284c364f11760d9abf226984104542d597358db699cd7dd7984