[INFO] updating cached repository https://github.com/prowe/rust_guessing_game [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] 1758a22df4bc58622ae526b8dc6b8d5102aabfa2 [INFO] documenting prowe/rust_guessing_game against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprowe%2Frust_guessing_game" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/prowe/rust_guessing_game on toolchain 394e1b40d264aa6928811919c1124fa248e7d802 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/prowe/rust_guessing_game [INFO] finished tweaking git repo https://github.com/prowe/rust_guessing_game [INFO] tweaked toml for git repo https://github.com/prowe/rust_guessing_game written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/prowe/rust_guessing_game already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 092c45769b0d6eda1e8aa8d22ddbf34cde9f3f4a6a8b9881bf70a698172a97bf [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" "092c45769b0d6eda1e8aa8d22ddbf34cde9f3f4a6a8b9881bf70a698172a97bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "092c45769b0d6eda1e8aa8d22ddbf34cde9f3f4a6a8b9881bf70a698172a97bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "092c45769b0d6eda1e8aa8d22ddbf34cde9f3f4a6a8b9881bf70a698172a97bf", kill_on_drop: false }` [INFO] [stdout] 092c45769b0d6eda1e8aa8d22ddbf34cde9f3f4a6a8b9881bf70a698172a97bf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] 0d6b6b35610c9eb3c518dececb8b97a46857878d65635d6a322443ce0cf5962c [INFO] running `Command { std: "docker" "start" "-a" "0d6b6b35610c9eb3c518dececb8b97a46857878d65635d6a322443ce0cf5962c", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.28 [INFO] [stderr] Checking rand v0.3.16 [INFO] [stderr] Documenting guessing_game v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: the size for values of type `(dyn std::error::Error + 'static)` cannot be known at compilation time [INFO] [stdout] --> src/main.rs:29:20 [INFO] [stdout] | [INFO] [stdout] 29 | fn read_guess() -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::marker::Sized` is not implemented for `(dyn std::error::Error + 'static)` [INFO] [stdout] = note: to learn more, visit [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: Could not document `guessing_game`. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --crate-type bin --crate-name guessing_game src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-e5a845157f3b5e74.rmeta --cap-lints=forbid` (exit code: 1) [INFO] running `Command { std: "docker" "inspect" "0d6b6b35610c9eb3c518dececb8b97a46857878d65635d6a322443ce0cf5962c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d6b6b35610c9eb3c518dececb8b97a46857878d65635d6a322443ce0cf5962c", kill_on_drop: false }` [INFO] [stdout] 0d6b6b35610c9eb3c518dececb8b97a46857878d65635d6a322443ce0cf5962c