[INFO] fetching crate rift 0.5.1...
[INFO] documenting rift-0.5.1 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate rift 0.5.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rift 0.5.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rift 0.5.1
[INFO] finished tweaking crates.io crate rift 0.5.1
[INFO] tweaked toml for crates.io crate rift 0.5.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cfbbc89e4cc816194218cad8dc464d16c1cbdaa7b4c0c8b1f8112a954d09d09
[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" "5cfbbc89e4cc816194218cad8dc464d16c1cbdaa7b4c0c8b1f8112a954d09d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cfbbc89e4cc816194218cad8dc464d16c1cbdaa7b4c0c8b1f8112a954d09d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cfbbc89e4cc816194218cad8dc464d16c1cbdaa7b4c0c8b1f8112a954d09d09", kill_on_drop: false }`
[INFO] [stdout] 5cfbbc89e4cc816194218cad8dc464d16c1cbdaa7b4c0c8b1f8112a954d09d09
[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" "+1.47.0" "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] 7bd973aeb41fa6b2c67e9bd2851df6e3d1236ae37b7360239f062f206c36d94c
[INFO] running `Command { std: "docker" "start" "-a" "7bd973aeb41fa6b2c67e9bd2851df6e3d1236ae37b7360239f062f206c36d94c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking integer-encoding v1.1.5
[INFO] [stderr]     Checking try_from v0.2.2
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]  Documenting rift v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/protocol/compact.rs:258:44
[INFO] [stdout]     |
[INFO] [stdout] 258 |             let val_type = try!(u8_to_type((type_header & 0x0F)));
[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 2.42s
[INFO] running `Command { std: "docker" "inspect" "7bd973aeb41fa6b2c67e9bd2851df6e3d1236ae37b7360239f062f206c36d94c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bd973aeb41fa6b2c67e9bd2851df6e3d1236ae37b7360239f062f206c36d94c", kill_on_drop: false }`
[INFO] [stdout] 7bd973aeb41fa6b2c67e9bd2851df6e3d1236ae37b7360239f062f206c36d94c
