[INFO] fetching crate xen 0.0.0-pre1...
[INFO] documenting xen-0.0.0-pre1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate xen 0.0.0-pre1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate xen 0.0.0-pre1 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xen 0.0.0-pre1
[INFO] finished tweaking crates.io crate xen 0.0.0-pre1
[INFO] tweaked toml for crates.io crate xen 0.0.0-pre1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xen-sys v0.0.0-pre1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", 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] 244081d2865da8c97abc3d68df6fc620c051ea801a86282b8b4ba2b063cf2668
[INFO] running `Command { std: "docker" "start" "-a" "244081d2865da8c97abc3d68df6fc620c051ea801a86282b8b4ba2b063cf2668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "244081d2865da8c97abc3d68df6fc620c051ea801a86282b8b4ba2b063cf2668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "244081d2865da8c97abc3d68df6fc620c051ea801a86282b8b4ba2b063cf2668", kill_on_drop: false }`
[INFO] [stdout] 244081d2865da8c97abc3d68df6fc620c051ea801a86282b8b4ba2b063cf2668
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] f10532d140cfa3f8f25ed13f015abdd8a4521d95d7630f6b81f4a74f74fbb8a3
[INFO] running `Command { std: "docker" "start" "-a" "f10532d140cfa3f8f25ed13f015abdd8a4521d95d7630f6b81f4a74f74fbb8a3", kill_on_drop: false }`
[INFO] [stderr]     Checking xen-sys v0.0.0-pre1
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xen-sys-0.0.0-pre1/src/hypercall/x86_64.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     asm!("call *$0"
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xen-sys-0.0.0-pre1/src/hypercall/x86_64.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     asm!("call *$0"
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xen-sys-0.0.0-pre1/src/hypercall/x86_64.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     asm!("call *$0"
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xen-sys-0.0.0-pre1/src/hypercall/x86_64.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 91 |     asm!("call *$0"
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xen-sys-0.0.0-pre1/src/hypercall/x86_64.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     asm!("call *$0"
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider importing this macro:
[INFO] [stdout]             core::arch::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/xen-sys-0.0.0-pre1/src/lib.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![feature(asm)]
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xen-sys` due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "f10532d140cfa3f8f25ed13f015abdd8a4521d95d7630f6b81f4a74f74fbb8a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f10532d140cfa3f8f25ed13f015abdd8a4521d95d7630f6b81f4a74f74fbb8a3", kill_on_drop: false }`
[INFO] [stdout] f10532d140cfa3f8f25ed13f015abdd8a4521d95d7630f6b81f4a74f74fbb8a3