[INFO] cloning repository https://github.com/TonyHsieh/rustack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TonyHsieh/rustack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTonyHsieh%2Frustack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTonyHsieh%2Frustack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2a0fffbb31341381b0cdf9e16ea5e3d67b3ddc3
[INFO] documenting TonyHsieh/rustack 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%2FTonyHsieh%2Frustack" "/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/TonyHsieh/rustack 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/TonyHsieh/rustack
[INFO] finished tweaking git repo https://github.com/TonyHsieh/rustack
[INFO] tweaked toml for git repo https://github.com/TonyHsieh/rustack written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/TonyHsieh/rustack 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]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v2.3.2
[INFO] [stderr]   Downloaded rusqlite v0.21.0
[INFO] [stderr]   Downloaded libsqlite3-sys v0.17.1
[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" "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] dce8d601eaba2e5f30472c0a7d3b1936aec7de9078ab34c2aff9dd186667c753
[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" "dce8d601eaba2e5f30472c0a7d3b1936aec7de9078ab34c2aff9dd186667c753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dce8d601eaba2e5f30472c0a7d3b1936aec7de9078ab34c2aff9dd186667c753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce8d601eaba2e5f30472c0a7d3b1936aec7de9078ab34c2aff9dd186667c753", kill_on_drop: false }`
[INFO] [stdout] dce8d601eaba2e5f30472c0a7d3b1936aec7de9078ab34c2aff9dd186667c753
[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" "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] [stdout] ec2b52d9d47efb3d5c2a677268be426f7842bc42b809e30cc8e7a736ed08855d
[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" "ec2b52d9d47efb3d5c2a677268be426f7842bc42b809e30cc8e7a736ed08855d", kill_on_drop: false }`
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling libsqlite3-sys v0.17.1
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking rusqlite v0.21.0
[INFO] [stderr]  Documenting rustack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> main.rs:70:90
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn stack_pop(connect: &rusqlite::Connection, dataMap: HashMap<String, String>) -> Result<(String)>{
[INFO] [stdout]    |                                                                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.51s
[INFO] running `Command { std: "docker" "inspect" "ec2b52d9d47efb3d5c2a677268be426f7842bc42b809e30cc8e7a736ed08855d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec2b52d9d47efb3d5c2a677268be426f7842bc42b809e30cc8e7a736ed08855d", kill_on_drop: false }`
[INFO] [stdout] ec2b52d9d47efb3d5c2a677268be426f7842bc42b809e30cc8e7a736ed08855d