[INFO] cloning repository https://github.com/ss2180/xv6-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ss2180/xv6-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fss2180%2Fxv6-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fss2180%2Fxv6-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b443048816b1ecf415a7f5dd62e1d6da94d7a5e5
[INFO] documenting ss2180/xv6-rust against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fss2180%2Fxv6-rust" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ss2180/xv6-rust on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-14/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-14/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/ss2180/xv6-rust
[INFO] finished tweaking git repo https://github.com/ss2180/xv6-rust
[INFO] tweaked toml for git repo https://github.com/ss2180/xv6-rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ss2180/xv6-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78c4739fcbd705eb7d860480b814b3a5902b7a1f8521c11d0c80725d353c5c14
[INFO] running `Command { std: "docker" "start" "-a" "78c4739fcbd705eb7d860480b814b3a5902b7a1f8521c11d0c80725d353c5c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78c4739fcbd705eb7d860480b814b3a5902b7a1f8521c11d0c80725d353c5c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78c4739fcbd705eb7d860480b814b3a5902b7a1f8521c11d0c80725d353c5c14", kill_on_drop: false }`
[INFO] [stdout] 78c4739fcbd705eb7d860480b814b3a5902b7a1f8521c11d0c80725d353c5c14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9c47c5fb2e4d531544f4759f0b8e8412b116af61727e5e599c272724d44216f
[INFO] running `Command { std: "docker" "start" "-a" "a9c47c5fb2e4d531544f4759f0b8e8412b116af61727e5e599c272724d44216f", kill_on_drop: false }`
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]  Documenting xv6-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]  --> src/x86.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     asm!(
[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]   --> src/x86.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     asm!(
[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]   --> src/x86.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     asm!("mov cr3, {}", in(reg) val);
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `xv6-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type staticlib --crate-name kernel src/kernel.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=449d7a5751100d50 -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-da9883d629d777ea.rmeta --extern spin=/opt/rustwide/target/debug/deps/libspin-5251e2e47a058021.rmeta --extern volatile=/opt/rustwide/target/debug/deps/libvolatile-24dafbdc33093d96.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a9c47c5fb2e4d531544f4759f0b8e8412b116af61727e5e599c272724d44216f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c47c5fb2e4d531544f4759f0b8e8412b116af61727e5e599c272724d44216f", kill_on_drop: false }`
[INFO] [stdout] a9c47c5fb2e4d531544f4759f0b8e8412b116af61727e5e599c272724d44216f