[INFO] cloning repository https://github.com/alsuren/cargo-ngrok
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alsuren/cargo-ngrok" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falsuren%2Fcargo-ngrok", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falsuren%2Fcargo-ngrok'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7e336fc9f48b12875b844ff9b41a2ae7fa217a6
[INFO] documenting alsuren/cargo-ngrok 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%2Falsuren%2Fcargo-ngrok" "/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/alsuren/cargo-ngrok 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/alsuren/cargo-ngrok
[INFO] finished tweaking git repo https://github.com/alsuren/cargo-ngrok
[INFO] tweaked toml for git repo https://github.com/alsuren/cargo-ngrok written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/alsuren/cargo-ngrok 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 proc-macro-error v0.4.9
[INFO] [stderr]   Downloaded aho-corasick v0.7.9
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.9
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0ff1d6381aa2155fa0257f984f8ee45aaa9f6689fe3bd17cb1c3ca80118a6ab5
[INFO] running `Command { std: "docker" "start" "-a" "0ff1d6381aa2155fa0257f984f8ee45aaa9f6689fe3bd17cb1c3ca80118a6ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ff1d6381aa2155fa0257f984f8ee45aaa9f6689fe3bd17cb1c3ca80118a6ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ff1d6381aa2155fa0257f984f8ee45aaa9f6689fe3bd17cb1c3ca80118a6ab5", kill_on_drop: false }`
[INFO] [stdout] 0ff1d6381aa2155fa0257f984f8ee45aaa9f6689fe3bd17cb1c3ca80118a6ab5
[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] ef366a5d3d8ff45805cf47dee11794f22df8d54b159baa6c6981e8df6abf70dc
[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" "ef366a5d3d8ff45805cf47dee11794f22df8d54b159baa6c6981e8df6abf70dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.15
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking ryu v1.0.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.9
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling tokio-macros v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]     Checking tokio v0.2.11
[INFO] [stderr]    Compiling proc-macro-error v0.4.9
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.9
[INFO] [stderr]    Compiling structopt-derive v0.4.2
[INFO] [stderr]     Checking pin-project v0.4.8
[INFO] [stderr]     Checking structopt v0.3.9
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.2.1
[INFO] [stderr]     Checking hyper v0.13.2
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking reqwest v0.10.2
[INFO] [stderr]  Documenting cargo-ngrok v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]   --> src/main.rs:88:15
[INFO] [stdout]    |
[INFO] [stdout] 88 |     Other(Vec<String>),
[INFO] [stdout]    |               ^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` 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 35s
[INFO] running `Command { std: "docker" "inspect" "ef366a5d3d8ff45805cf47dee11794f22df8d54b159baa6c6981e8df6abf70dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef366a5d3d8ff45805cf47dee11794f22df8d54b159baa6c6981e8df6abf70dc", kill_on_drop: false }`
[INFO] [stdout] ef366a5d3d8ff45805cf47dee11794f22df8d54b159baa6c6981e8df6abf70dc