[INFO] fetching crate follow 0.1.5...
[INFO] documenting follow-0.1.5 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate follow 0.1.5 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate follow 0.1.5 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate follow 0.1.5
[INFO] finished tweaking crates.io crate follow 0.1.5
[INFO] tweaked toml for crates.io crate follow 0.1.5 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6049170c3c9f144f5464f3bdde3df5d138b52cea96c6cc013f654c7389d09b94
[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" "6049170c3c9f144f5464f3bdde3df5d138b52cea96c6cc013f654c7389d09b94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6049170c3c9f144f5464f3bdde3df5d138b52cea96c6cc013f654c7389d09b94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6049170c3c9f144f5464f3bdde3df5d138b52cea96c6cc013f654c7389d09b94", kill_on_drop: false }`
[INFO] [stdout] 6049170c3c9f144f5464f3bdde3df5d138b52cea96c6cc013f654c7389d09b94
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] c0f8c5451959bdc6bd91e336c978237d0e10585fe4b505e3bc9048c9f6bd4b1b
[INFO] running `Command { std: "docker" "start" "-a" "c0f8c5451959bdc6bd91e336c978237d0e10585fe4b505e3bc9048c9f6bd4b1b", kill_on_drop: false }`
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking fern v0.3.5
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking docopt v0.7.0
[INFO] [stderr]  Documenting follow v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/worker.rs:180:27
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 return Ok((cursor..len));
[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 function argument
[INFO] [stdout]    --> src/worker.rs:189:27
[INFO] [stdout]     |
[INFO] [stdout] 189 |                 return Ok((0..len));
[INFO] [stdout]     |                           ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:143:28
[INFO] [stdout]     |
[INFO] [stdout] 143 |         Some((Width(w @ 20 ... 200), _)) => {
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "c0f8c5451959bdc6bd91e336c978237d0e10585fe4b505e3bc9048c9f6bd4b1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0f8c5451959bdc6bd91e336c978237d0e10585fe4b505e3bc9048c9f6bd4b1b", kill_on_drop: false }`
[INFO] [stdout] c0f8c5451959bdc6bd91e336c978237d0e10585fe4b505e3bc9048c9f6bd4b1b
