[INFO] cloning repository https://github.com/yaowenqiang/rust_csv_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yaowenqiang/rust_csv_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyaowenqiang%2Frust_csv_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyaowenqiang%2Frust_csv_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc41a3a699a50caff16fbf8bc4489d27bbe00796
[INFO] documenting yaowenqiang/rust_csv_demo 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%2Fyaowenqiang%2Frust_csv_demo" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yaowenqiang/rust_csv_demo 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/yaowenqiang/rust_csv_demo
[INFO] finished tweaking git repo https://github.com/yaowenqiang/rust_csv_demo
[INFO] tweaked toml for git repo https://github.com/yaowenqiang/rust_csv_demo written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/yaowenqiang/rust_csv_demo 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 6fcbf652c4e9dca1455da06428bf573bc31e1e0adad865ac7d0b6e31554e2e72
[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" "6fcbf652c4e9dca1455da06428bf573bc31e1e0adad865ac7d0b6e31554e2e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fcbf652c4e9dca1455da06428bf573bc31e1e0adad865ac7d0b6e31554e2e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fcbf652c4e9dca1455da06428bf573bc31e1e0adad865ac7d0b6e31554e2e72", kill_on_drop: false }`
[INFO] [stdout] 6fcbf652c4e9dca1455da06428bf573bc31e1e0adad865ac7d0b6e31554e2e72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] cb3417c35035ded037ad6fb2fb833e9df6ff6f7e98b5df48d66ed837b3b08859
[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" "cb3417c35035ded037ad6fb2fb833e9df6ff6f7e98b5df48d66ed837b3b08859", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking tracing-core v0.1.13
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking openssl-sys v0.9.58
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking tracing v0.1.18
[INFO] [stderr]     Checking openssl v0.10.30
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.7
[INFO] [stderr]  Documenting csv_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: argument never used
[INFO] [stdout]   --> src/main.rs:59:61
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let request_url = format!("http://localhost:8889/", line) ;
[INFO] [stdout]    |                                   ------------------------  ^^^^ argument never used
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   formatting specifier missing
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `csv_demo`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name csv_demo src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-23c2c67f0613c61d.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-b2d1186c4d9ee5ca.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "cb3417c35035ded037ad6fb2fb833e9df6ff6f7e98b5df48d66ed837b3b08859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb3417c35035ded037ad6fb2fb833e9df6ff6f7e98b5df48d66ed837b3b08859", kill_on_drop: false }`
[INFO] [stdout] cb3417c35035ded037ad6fb2fb833e9df6ff6f7e98b5df48d66ed837b3b08859