[INFO] cloning repository https://github.com/KirillKrutski/tokioexamples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KirillKrutski/tokioexamples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKirillKrutski%2Ftokioexamples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKirillKrutski%2Ftokioexamples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb14c3e21fdfb9251115ea57ae4617af51fbc40a
[INFO] documenting KirillKrutski/tokioexamples against 1.99.0-beta.1 for beta-rustdoc-1.99-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKirillKrutski%2Ftokioexamples" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KirillKrutski/tokioexamples
[INFO] finished tweaking git repo https://github.com/KirillKrutski/tokioexamples
[INFO] tweaked toml for git repo https://github.com/KirillKrutski/tokioexamples written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KirillKrutski/tokioexamples on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KirillKrutski/tokioexamples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] documenting KirillKrutski/tokioexamples against 1.99.0-beta.1 for beta-rustdoc-1.99-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKirillKrutski%2Ftokioexamples" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KirillKrutski/tokioexamples
[INFO] finished tweaking git repo https://github.com/KirillKrutski/tokioexamples
[INFO] tweaked toml for git repo https://github.com/KirillKrutski/tokioexamples written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KirillKrutski/tokioexamples on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KirillKrutski/tokioexamples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v2.4.0
[INFO] [stderr]   Downloaded quote v1.0.37
[INFO] [stderr]   Downloaded unicode-ident v1.0.13
[INFO] [stderr]   Downloaded adler2 v2.0.0
[INFO] [stderr]   Downloaded hermit-abi v0.3.9
[INFO] [stderr]   Downloaded signal-hook-registry v1.4.2
[INFO] [stderr]   Downloaded rustc-demangle v0.1.24
[INFO] [stderr]   Downloaded pin-project-lite v0.2.14
[INFO] [stderr]   Downloaded proc-macro2 v1.0.86
[INFO] [stderr]   Downloaded addr2line v0.24.1
[INFO] [stderr]   Downloaded miniz_oxide v0.8.0
[INFO] [stderr]   Downloaded backtrace v0.3.74
[INFO] [stderr]   Downloaded memchr v2.7.4
[INFO] [stderr]   Downloaded mio v1.0.2
[INFO] [stderr]   Downloaded syn v2.0.77
[INFO] [stderr]   Downloaded gimli v0.31.0
[INFO] [stderr]   Downloaded object v0.36.4
[INFO] [stderr]   Downloaded libc v0.2.159
[INFO] [stderr]   Downloaded tokio v1.40.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a6a09453e9684edeb048849ab01392a7be0f4a7179095c8cf8fdb513aeb2aeae
[INFO] running `Command { std: "docker" "start" "a6a09453e9684edeb048849ab01392a7be0f4a7179095c8cf8fdb513aeb2aeae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6a09453e9684edeb048849ab01392a7be0f4a7179095c8cf8fdb513aeb2aeae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a6a09453e9684edeb048849ab01392a7be0f4a7179095c8cf8fdb513aeb2aeae" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6a09453e9684edeb048849ab01392a7be0f4a7179095c8cf8fdb513aeb2aeae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a6a09453e9684edeb048849ab01392a7be0f4a7179095c8cf8fdb513aeb2aeae" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v1.0.2
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]  Documenting tokioexamples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]    --> src/main.rs:317:20
[INFO] [stdout]     |
[INFO] [stdout] 317 |               return (
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 318 | |                 Point::dist(&self.a, &self.b)
[INFO] [stdout]     | |________________^
[INFO] [stdout] 319 |                   + Point::dist(&self.b, &self.c)
[INFO] [stdout] 320 |                   + Point::dist(&self.c, &self.a)
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 321 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 317 ~             return Point::dist(&self.a, &self.b)
[INFO] [stdout] 318 |                 + Point::dist(&self.b, &self.c)
[INFO] [stdout] 319 ~                 + Point::dist(&self.c, &self.a);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.00s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/tokioexamples/index.html
[INFO] running `Command { std: "docker" "inspect" "a6a09453e9684edeb048849ab01392a7be0f4a7179095c8cf8fdb513aeb2aeae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6a09453e9684edeb048849ab01392a7be0f4a7179095c8cf8fdb513aeb2aeae", kill_on_drop: false }`
[INFO] [stdout] a6a09453e9684edeb048849ab01392a7be0f4a7179095c8cf8fdb513aeb2aeae
