[INFO] updating cached repository https://github.com/vendethiel/smallstack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 053b8d48c8de87e036a17ee7283676eeba67ba66
[INFO] documenting vendethiel/smallstack against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvendethiel%2Fsmallstack" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vendethiel/smallstack on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vendethiel/smallstack
[INFO] finished tweaking git repo https://github.com/vendethiel/smallstack
[INFO] tweaked toml for git repo https://github.com/vendethiel/smallstack written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/vendethiel/smallstack already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: path `/workspace/builds/worker-4/source/src/smallstack.rs` was erroneously implicitly accepted for binary `smallstack`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37efd2dec35ca36f376d12b6ec64f7a63b227c42256b661db1a19d8efc8fb7cf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "37efd2dec35ca36f376d12b6ec64f7a63b227c42256b661db1a19d8efc8fb7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37efd2dec35ca36f376d12b6ec64f7a63b227c42256b661db1a19d8efc8fb7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37efd2dec35ca36f376d12b6ec64f7a63b227c42256b661db1a19d8efc8fb7cf", kill_on_drop: false }`
[INFO] [stdout] 37efd2dec35ca36f376d12b6ec64f7a63b227c42256b661db1a19d8efc8fb7cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] b8bfb609ed45206da453468346a611f9a195966d1c8e398f2fff3f6b86e68ffc
[INFO] running `Command { std: "docker" "start" "-a" "b8bfb609ed45206da453468346a611f9a195966d1c8e398f2fff3f6b86e68ffc", kill_on_drop: false }`
[INFO] [stderr] warning: path `/opt/rustwide/workdir/src/smallstack.rs` was erroneously implicitly accepted for binary `smallstack`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]  Documenting smallstack v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `,`, `@`, `]`, or `|`, found `..`
[INFO] [stdout]   --> src/smallstack.rs:63:31
[INFO] [stdout]    |
[INFO] [stdout] 63 |         &["push", "str", ref n..] => stack.push(Expr::Str(String::from(n.join(" ")))),
[INFO] [stdout]    |                               ^^ expected one of `,`, `@`, `]`, or `|`
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to bind the contents of the rest of the array pattern into `n`, use `@`
[INFO] [stdout]    |
[INFO] [stdout] 63 |         &["push", "str", ref n @ ..] => stack.push(Expr::Str(String::from(n.join(" ")))),
[INFO] [stdout]    |                                ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `smallstack`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name smallstack src/smallstack.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "b8bfb609ed45206da453468346a611f9a195966d1c8e398f2fff3f6b86e68ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8bfb609ed45206da453468346a611f9a195966d1c8e398f2fff3f6b86e68ffc", kill_on_drop: false }`
[INFO] [stdout] b8bfb609ed45206da453468346a611f9a195966d1c8e398f2fff3f6b86e68ffc