[INFO] fetching crate mcp23x17 0.2.0...
[INFO] documenting mcp23x17-0.2.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate mcp23x17 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mcp23x17 0.2.0 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mcp23x17 0.2.0
[INFO] finished tweaking crates.io crate mcp23x17 0.2.0
[INFO] tweaked toml for crates.io crate mcp23x17 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", 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] ac0c8cf70daa2060ec73cac9db893cfc1307d5ac29009d0d22680945b7f0f20d
[INFO] running `Command { std: "docker" "start" "-a" "ac0c8cf70daa2060ec73cac9db893cfc1307d5ac29009d0d22680945b7f0f20d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac0c8cf70daa2060ec73cac9db893cfc1307d5ac29009d0d22680945b7f0f20d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac0c8cf70daa2060ec73cac9db893cfc1307d5ac29009d0d22680945b7f0f20d", kill_on_drop: false }`
[INFO] [stdout] ac0c8cf70daa2060ec73cac9db893cfc1307d5ac29009d0d22680945b7f0f20d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ff3c161f50d012c431fb3b75d8cbdba6c2c34ce96e22a82d4e1f0d4aeda173e
[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" "2ff3c161f50d012c431fb3b75d8cbdba6c2c34ce96e22a82d4e1f0d4aeda173e", kill_on_drop: false }`
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]  Documenting mcp23x17 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated constant `_nothin` should have an upper case name
[INFO] [stdout]    --> src/lib.rs:101:15
[INFO] [stdout]     |
[INFO] [stdout] 101 |         const _nothin = 1 << 0;
[INFO] [stdout]     |               ^^^^^^^ help: convert the identifier to upper case: `_NOTHIN`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `_nothin` should have an upper case name
[INFO] [stdout]    --> src/lib.rs:101:15
[INFO] [stdout]     |
[INFO] [stdout] 101 |         const _nothin = 1 << 0;
[INFO] [stdout]     |               ^^^^^^^ help: convert the identifier to upper case: `_NOTHIN`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "2ff3c161f50d012c431fb3b75d8cbdba6c2c34ce96e22a82d4e1f0d4aeda173e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ff3c161f50d012c431fb3b75d8cbdba6c2c34ce96e22a82d4e1f0d4aeda173e", kill_on_drop: false }`
[INFO] [stdout] 2ff3c161f50d012c431fb3b75d8cbdba6c2c34ce96e22a82d4e1f0d4aeda173e