[INFO] cloning repository https://github.com/vikrem/click
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vikrem/click" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikrem%2Fclick", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikrem%2Fclick'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f25ec87cbbbdc97c97cc1b442630a0a592dfb9a6
[INFO] documenting vikrem/click 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%2Fvikrem%2Fclick" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vikrem/click 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/vikrem/click
[INFO] finished tweaking git repo https://github.com/vikrem/click
[INFO] tweaked toml for git repo https://github.com/vikrem/click written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/vikrem/click 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded duct_sh v0.1.0
[INFO] [stderr]   Downloaded der-parser v0.3.5
[INFO] [stderr]   Downloaded os_pipe v0.5.1
[INFO] [stderr]   Downloaded duct v0.12.0
[INFO] [stderr]   Downloaded rusticata-macros v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] be04ff6471ef1cbc7ddae65c5f366982b9d7df8df3a39c01457b3ace8ff4aecf
[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" "be04ff6471ef1cbc7ddae65c5f366982b9d7df8df3a39c01457b3ace8ff4aecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be04ff6471ef1cbc7ddae65c5f366982b9d7df8df3a39c01457b3ace8ff4aecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be04ff6471ef1cbc7ddae65c5f366982b9d7df8df3a39c01457b3ace8ff4aecf", kill_on_drop: false }`
[INFO] [stdout] be04ff6471ef1cbc7ddae65c5f366982b9d7df8df3a39c01457b3ace8ff4aecf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] a4622d859f58df15e93e436bf053e04ed089e618eaed1207ec7d2256c3b5c91e
[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" "a4622d859f58df15e93e436bf053e04ed089e618eaed1207ec7d2256c3b5c91e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]     Checking unicode-segmentation v1.2.1
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking serde_yaml v0.8.8
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]     Checking base64 v0.5.2
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking nix v0.13.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking shared_child v0.3.3
[INFO] [stderr]     Checking dirs-sys v0.3.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking csv v0.15.0
[INFO] [stderr]     Checking dirs v2.0.1
[INFO] [stderr]     Checking hyper v0.10.15
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking prettytable-rs v0.6.7
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking rusticata-macros v0.3.3
[INFO] [stderr]     Checking der-parser v0.3.5
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking os_pipe v0.5.1
[INFO] [stderr]     Checking webpki v0.18.1
[INFO] [stderr]     Checking sct v0.4.0
[INFO] [stderr]     Checking webpki-roots v0.15.0
[INFO] [stderr]     Checking rustls v0.14.0
[INFO] [stderr]     Checking ctrlc v3.1.1
[INFO] [stderr]     Checking atomicwrites v0.2.2
[INFO] [stderr]     Checking rustyline v5.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]     Checking os_pipe v0.8.1
[INFO] [stderr]     Checking duct v0.12.0
[INFO] [stderr]     Checking duct_sh v0.1.0
[INFO] [stderr]     Checking hyper-sync-rustls v0.3.0-rc.4
[INFO] [stderr]  Documenting click v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/describe.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 46 |         func: &'a (Fn(&Value) -> Cow<str>),
[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 1m 07s
[INFO] running `Command { std: "docker" "inspect" "a4622d859f58df15e93e436bf053e04ed089e618eaed1207ec7d2256c3b5c91e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4622d859f58df15e93e436bf053e04ed089e618eaed1207ec7d2256c3b5c91e", kill_on_drop: false }`
[INFO] [stdout] a4622d859f58df15e93e436bf053e04ed089e618eaed1207ec7d2256c3b5c91e