[INFO] cloning repository https://github.com/jasonhansel/paraphrase
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jasonhansel/paraphrase" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasonhansel%2Fparaphrase", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasonhansel%2Fparaphrase'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce446649cb3b9538fff5ad09560720368c7e7eab
[INFO] documenting jasonhansel/paraphrase 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%2Fjasonhansel%2Fparaphrase" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jasonhansel/paraphrase 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/jasonhansel/paraphrase
[INFO] finished tweaking git repo https://github.com/jasonhansel/paraphrase
[INFO] tweaked toml for git repo https://github.com/jasonhansel/paraphrase written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/jasonhansel/paraphrase 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 structopt v0.1.7
[INFO] [stderr]   Downloaded structopt-derive v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 46c4ca4f9448f589fbf796fd70cf9667861f6340b66ff8930e117ae3d9eb5f73
[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" "46c4ca4f9448f589fbf796fd70cf9667861f6340b66ff8930e117ae3d9eb5f73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46c4ca4f9448f589fbf796fd70cf9667861f6340b66ff8930e117ae3d9eb5f73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46c4ca4f9448f589fbf796fd70cf9667861f6340b66ff8930e117ae3d9eb5f73", kill_on_drop: false }`
[INFO] [stdout] 46c4ca4f9448f589fbf796fd70cf9667861f6340b66ff8930e117ae3d9eb5f73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] eddba554ba4d750651adf994c254502d8ee04f04a9b5ea4dc53af1d604e70244
[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" "eddba554ba4d750651adf994c254502d8ee04f04a9b5ea4dc53af1d604e70244", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking num-traits v0.1.42
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking clap v2.29.2
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking regex v0.2.5
[INFO] [stderr]     Checking structopt v0.1.7
[INFO] [stderr]  Documenting paraphrase v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/value.rs:76:50
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn split_at<'t>(&'t mut self, idx: usize) -> (ArcSlice) {
[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 `let` scrutinee expression
[INFO] [stdout]    --> src/base.rs:201:36
[INFO] [stdout]     |
[INFO] [stdout] 201 |                 if let Some(tag) = (name_tag.get(1)) {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/expand.rs:238:41
[INFO] [stdout]     |
[INFO] [stdout] 238 |         self.final_join = Some(Box::new((self.handle_call(cmd, call))));
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/expand.rs:407:26
[INFO] [stdout]     |
[INFO] [stdout] 407 |                   Box::new((final_join.map(|w| {
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 408 | |                     match w {
[INFO] [stdout] 409 | |                         EvalResult::Expand(new_scope, new_rope) => Loop::Continue((joins, new_scope, new_rope)),
[INFO] [stdout] 410 | |                         EvalResult::Done(val) => {
[INFO] [stdout] ...   |
[INFO] [stdout] 414 | |                     }
[INFO] [stdout] 415 | |                 })))  as Fut<Loop<_,_>>
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 407 |                 Box::new(final_join.map(|w| {
[INFO] [stdout] 408 |                     match w {
[INFO] [stdout] 409 |                         EvalResult::Expand(new_scope, new_rope) => Loop::Continue((joins, new_scope, new_rope)),
[INFO] [stdout] 410 |                         EvalResult::Done(val) => {
[INFO] [stdout] 411 |                             joins.push(Box::new(ok(Rope::from_value(val))));
[INFO] [stdout] 412 |                             Loop::Break(joins)
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.20s
[INFO] running `Command { std: "docker" "inspect" "eddba554ba4d750651adf994c254502d8ee04f04a9b5ea4dc53af1d604e70244", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eddba554ba4d750651adf994c254502d8ee04f04a9b5ea4dc53af1d604e70244", kill_on_drop: false }`
[INFO] [stdout] eddba554ba4d750651adf994c254502d8ee04f04a9b5ea4dc53af1d604e70244