[INFO] fetching crate preftool-dirs 0.2.0...
[INFO] documenting preftool-dirs-0.2.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate preftool-dirs 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate preftool-dirs 0.2.0 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 crates.io crate preftool-dirs 0.2.0
[INFO] finished tweaking crates.io crate preftool-dirs 0.2.0
[INFO] tweaked toml for crates.io crate preftool-dirs 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dirs-sys v0.1.0
[INFO] [stderr]   Downloaded preftool v0.2.0
[INFO] [stderr]   Downloaded caseless v0.2.1
[INFO] [stderr]   Downloaded slog-stdlog v3.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 74d35c65ca320b595c73ce0f5cb0ec4ac9d4431f0f6ead45beea66061b53b358
[INFO] running `Command { std: "docker" "start" "-a" "74d35c65ca320b595c73ce0f5cb0ec4ac9d4431f0f6ead45beea66061b53b358", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74d35c65ca320b595c73ce0f5cb0ec4ac9d4431f0f6ead45beea66061b53b358", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d35c65ca320b595c73ce0f5cb0ec4ac9d4431f0f6ead45beea66061b53b358", kill_on_drop: false }`
[INFO] [stdout] 74d35c65ca320b595c73ce0f5cb0ec4ac9d4431f0f6ead45beea66061b53b358
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1f4b46799e65b15cb5c59fd630c705b575382cfdc739c4473f3813c9548f6678
[INFO] running `Command { std: "docker" "start" "-a" "1f4b46799e65b15cb5c59fd630c705b575382cfdc739c4473f3813c9548f6678", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking arc-swap v1.6.0
[INFO] [stderr]    Compiling caseless v0.2.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking dirs-sys v0.1.0
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking slog-scope v4.4.0
[INFO] [stderr]     Checking slog-stdlog v3.0.5
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking preftool v0.2.0
[INFO] [stderr]  Documenting preftool-dirs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: no rules expected the token `:`
[INFO] [stdout]   --> src/lib.rs:22:34
[INFO] [stdout]    |
[INFO] [stdout] 16 |   macro_rules! vec_opt {
[INFO] [stdout]    |   -------------------- when calling this macro
[INFO] [stdout] ...
[INFO] [stdout] 22 |       1 + vec_opt!(__count $($value:expr,)*)
[INFO] [stdout]    |                                    ^ no rules expected this token in macro call
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lin.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let dirs = vec_opt!(
[INFO] [stdout]    |  ______________-
[INFO] [stdout] 19 | |     // XDG config path
[INFO] [stdout] 20 | |     env::var_os("XDG_CONFIG_HOME")
[INFO] [stdout] 21 | |       .and_then(dirs_sys::is_absolute_path)
[INFO] [stdout] ...  |
[INFO] [stdout] 26 | |       .map(|home_dir| home_dir.join(".config").join(&application)),
[INFO] [stdout] 27 | |   );
[INFO] [stdout]    | |___- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] note: while trying to match `,`
[INFO] [stdout]   --> src/lib.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |   (__count $_fst:expr, $($value:expr,)*) => {
[INFO] [stdout]    |                      ^
[INFO] [stdout]    = note: this error originates in the macro `vec_opt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:204:6
[INFO] [stdout]     |
[INFO] [stdout] 204 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:220:6
[INFO] [stdout]     |
[INFO] [stdout] 220 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `preftool-dirs`
[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 lib --crate-name preftool_dirs src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=5182bdc89e557eea -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-b97deb9e7f1da5f8.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-7ee22f13a2130506.rmeta --extern dirs_sys=/opt/rustwide/target/debug/deps/libdirs_sys-77c14729260c4301.rmeta --extern preftool=/opt/rustwide/target/debug/deps/libpreftool-80e9ddbdc876a1b0.rmeta --extern slog=/opt/rustwide/target/debug/deps/libslog-c8f18fc72194bbdf.rmeta --extern slog_stdlog=/opt/rustwide/target/debug/deps/libslog_stdlog-0df9f018b8e6d8b7.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "1f4b46799e65b15cb5c59fd630c705b575382cfdc739c4473f3813c9548f6678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f4b46799e65b15cb5c59fd630c705b575382cfdc739c4473f3813c9548f6678", kill_on_drop: false }`
[INFO] [stdout] 1f4b46799e65b15cb5c59fd630c705b575382cfdc739c4473f3813c9548f6678
