[INFO] fetching crate scall 0.2.5...
[INFO] documenting scall-0.2.5 against try#6fd27704e643b25711e6a97ec2b04873b411b97d for pr-96676
[INFO] extracting crate scall 0.2.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate scall 0.2.5 on toolchain 6fd27704e643b25711e6a97ec2b04873b411b97d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scall 0.2.5
[INFO] finished tweaking crates.io crate scall 0.2.5
[INFO] tweaked toml for crates.io crate scall 0.2.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate scall 0.2.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32a599701963bf3a47a8704aee4437a4559cbde26d8293be62ff69adad44bcd8
[INFO] running `Command { std: "docker" "start" "-a" "32a599701963bf3a47a8704aee4437a4559cbde26d8293be62ff69adad44bcd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32a599701963bf3a47a8704aee4437a4559cbde26d8293be62ff69adad44bcd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32a599701963bf3a47a8704aee4437a4559cbde26d8293be62ff69adad44bcd8", kill_on_drop: false }`
[INFO] [stdout] 32a599701963bf3a47a8704aee4437a4559cbde26d8293be62ff69adad44bcd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45d89a2348f0ed05562fdb974d265e69686a9f61425ec8b64366eae4a9eda46f
[INFO] running `Command { std: "docker" "start" "-a" "45d89a2348f0ed05562fdb974d265e69686a9f61425ec8b64366eae4a9eda46f", kill_on_drop: false }`
[INFO] [stderr]    Compiling scall v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting scall v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]    --> src/macros.rs:237:42
[INFO] [stdout]     |
[INFO] [stdout] 237 | /// architecture-specific differences ([`syscall_args64!`] may help with this).
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(rustdoc::macro_rules_fallback)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]  --> src/args64.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | /// A version of [`syscall!`] that makes it easier to pass 64-bit arguments.
[INFO] [stdout]   |                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `scall`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name scall src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=0d256fc09bc54b50 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid --crate-version 0.2.5 --cfg 'scall_error="packed"'` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "45d89a2348f0ed05562fdb974d265e69686a9f61425ec8b64366eae4a9eda46f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45d89a2348f0ed05562fdb974d265e69686a9f61425ec8b64366eae4a9eda46f", kill_on_drop: false }`
[INFO] [stdout] 45d89a2348f0ed05562fdb974d265e69686a9f61425ec8b64366eae4a9eda46f