[INFO] cloning repository https://github.com/dingo-actual/silver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dingo-actual/silver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdingo-actual%2Fsilver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdingo-actual%2Fsilver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3efd4749a4ff6013b950864d0e3bce0f1212d351
[INFO] documenting dingo-actual/silver 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%2Fdingo-actual%2Fsilver" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dingo-actual/silver 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/dingo-actual/silver
[INFO] finished tweaking git repo https://github.com/dingo-actual/silver
[INFO] tweaked toml for git repo https://github.com/dingo-actual/silver written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/dingo-actual/silver 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] e94da23eb94fbe0325388ba78c078bef8933336f928451dfa18755b3e163388b
[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" "e94da23eb94fbe0325388ba78c078bef8933336f928451dfa18755b3e163388b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e94da23eb94fbe0325388ba78c078bef8933336f928451dfa18755b3e163388b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e94da23eb94fbe0325388ba78c078bef8933336f928451dfa18755b3e163388b", kill_on_drop: false }`
[INFO] [stdout] e94da23eb94fbe0325388ba78c078bef8933336f928451dfa18755b3e163388b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 34ce9bcd3f50ded1fc4aa278fc11dfbc7fcd828d8d05a853f2e66fedfe8e9749
[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" "34ce9bcd3f50ded1fc4aa278fc11dfbc7fcd828d8d05a853f2e66fedfe8e9749", kill_on_drop: false }`
[INFO] [stderr]  Documenting silver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:209:34
[INFO] [stdout]     |
[INFO] [stdout] 209 |             nonzero_mask[*ix2] = (l.abs() >= *eps);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:213:34
[INFO] [stdout]     |
[INFO] [stdout] 213 |             nonzero_mask[*ix2] = (h.abs() >= *eps);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:217:34
[INFO] [stdout]     |
[INFO] [stdout] 217 |             nonzero_mask[*ix2] = (a2_old >= *eps);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:235:30
[INFO] [stdout]     |
[INFO] [stdout] 235 |         nonzero_mask[*ix1] = (a1 >= *eps);
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:236:30
[INFO] [stdout]     |
[INFO] [stdout] 236 |         nonzero_mask[*ix2] = (a2 >= *eps);
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "34ce9bcd3f50ded1fc4aa278fc11dfbc7fcd828d8d05a853f2e66fedfe8e9749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34ce9bcd3f50ded1fc4aa278fc11dfbc7fcd828d8d05a853f2e66fedfe8e9749", kill_on_drop: false }`
[INFO] [stdout] 34ce9bcd3f50ded1fc4aa278fc11dfbc7fcd828d8d05a853f2e66fedfe8e9749