[INFO] cloning repository https://github.com/JCBurnside/macro_use_example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JCBurnside/macro_use_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJCBurnside%2Fmacro_use_example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJCBurnside%2Fmacro_use_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17e98407276a1a4e669a85db4abd5d6361983eb9
[INFO] documenting JCBurnside/macro_use_example against 1.76.0 for beta-1.77-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJCBurnside%2Fmacro_use_example" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JCBurnside/macro_use_example on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JCBurnside/macro_use_example
[INFO] finished tweaking git repo https://github.com/JCBurnside/macro_use_example
[INFO] tweaked toml for git repo https://github.com/JCBurnside/macro_use_example written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JCBurnside/macro_use_example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47310dfc9b0d7cb2108db42ab859a973fc2609052237a4aa9c755ced5c4ef890
[INFO] running `Command { std: "docker" "start" "-a" "47310dfc9b0d7cb2108db42ab859a973fc2609052237a4aa9c755ced5c4ef890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47310dfc9b0d7cb2108db42ab859a973fc2609052237a4aa9c755ced5c4ef890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47310dfc9b0d7cb2108db42ab859a973fc2609052237a4aa9c755ced5c4ef890", kill_on_drop: false }`
[INFO] [stdout] 47310dfc9b0d7cb2108db42ab859a973fc2609052237a4aa9c755ced5c4ef890
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6a6a736c79b27876ad4f2301b51b7a0a37ffcfbfd90a7428b5e178a9c864581
[INFO] running `Command { std: "docker" "start" "-a" "a6a6a736c79b27876ad4f2301b51b7a0a37ffcfbfd90a7428b5e178a9c864581", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling macro_support v0.0.1 (/opt/rustwide/workdir/macro_support)
[INFO] [stderr]  Documenting macro_support v0.0.1 (/opt/rustwide/workdir/macro_support)
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]  Documenting macro_export v0.0.1 (/opt/rustwide/workdir/macro_export)
[INFO] [stderr]    Compiling macro_export v0.0.1 (/opt/rustwide/workdir/macro_export)
[INFO] [stderr]  Documenting macro_sample v0.1.0 (/opt/rustwide/workdir/macro_sample)
[INFO] [stdout] error: expected identifier, found `"test_t"`
[INFO] [stdout]  --> macro_sample/src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[format]
[INFO] [stdout]   | ^^^^^^^^^ expected identifier
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the attribute macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `macro_sample`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type bin --crate-name macro_sample macro_sample/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=164778f939bda796 -L dependency=/opt/rustwide/target/debug/deps --extern macro_export=/opt/rustwide/target/debug/deps/libmacro_export-4b4482fcc49a3482.so --extern macro_support=/opt/rustwide/target/debug/deps/libmacro_support-4460af2c2ceac93e.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a6a6a736c79b27876ad4f2301b51b7a0a37ffcfbfd90a7428b5e178a9c864581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6a6a736c79b27876ad4f2301b51b7a0a37ffcfbfd90a7428b5e178a9c864581", kill_on_drop: false }`
[INFO] [stdout] a6a6a736c79b27876ad4f2301b51b7a0a37ffcfbfd90a7428b5e178a9c864581
