[INFO] cloning repository https://github.com/oneminot/HelloRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oneminot/HelloRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foneminot%2FHelloRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foneminot%2FHelloRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89acb2c5bb47dc15db05fddbf465411e78b5d55f
[INFO] documenting oneminot/HelloRust against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foneminot%2FHelloRust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oneminot/HelloRust on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/oneminot/HelloRust
[INFO] finished tweaking git repo https://github.com/oneminot/HelloRust
[INFO] tweaked toml for git repo https://github.com/oneminot/HelloRust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/oneminot/HelloRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/rust-lang/semver.git`
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/rust-lang/semver.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d25de5ce7c826e80e5062642f649a4f51eced12879f8c0428eb88405e6c95360
[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" "d25de5ce7c826e80e5062642f649a4f51eced12879f8c0428eb88405e6c95360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d25de5ce7c826e80e5062642f649a4f51eced12879f8c0428eb88405e6c95360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d25de5ce7c826e80e5062642f649a4f51eced12879f8c0428eb88405e6c95360", kill_on_drop: false }`
[INFO] [stdout] d25de5ce7c826e80e5062642f649a4f51eced12879f8c0428eb88405e6c95360
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "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] 9ad5784cbdbf9462122eea0833d0b1c50f211cf5e8b575487e5ee28734760209
[INFO] running `Command { std: "docker" "start" "-a" "9ad5784cbdbf9462122eea0833d0b1c50f211cf5e8b575487e5ee28734760209", kill_on_drop: false }`
[INFO] [stderr]     Checking semver v0.10.0 (https://github.com/rust-lang/semver.git#db822b7f)
[INFO] [stderr]  Documenting hello_world v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `v`
[INFO] [stdout]  --> src/main.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 |     v = []
[INFO] [stdout]   |           - expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 5 |     v.push("Hello")
[INFO] [stdout]   |     ^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `hello_world`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name hello_world 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 semver=/opt/rustwide/target/debug/deps/libsemver-3835053ff2707ecd.rmeta --cap-lints=warn --crate-version 0.0.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "9ad5784cbdbf9462122eea0833d0b1c50f211cf5e8b575487e5ee28734760209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ad5784cbdbf9462122eea0833d0b1c50f211cf5e8b575487e5ee28734760209", kill_on_drop: false }`
[INFO] [stdout] 9ad5784cbdbf9462122eea0833d0b1c50f211cf5e8b575487e5ee28734760209