[INFO] cloning repository https://github.com/blawesom/rust-url
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blawesom/rust-url" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblawesom%2Frust-url", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblawesom%2Frust-url'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ecc6944c49e20c37bde7aee1c5eec91b6c79603
[INFO] documenting blawesom/rust-url 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%2Fblawesom%2Frust-url" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blawesom/rust-url 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/blawesom/rust-url
[INFO] finished tweaking git repo https://github.com/blawesom/rust-url
[INFO] tweaked toml for git repo https://github.com/blawesom/rust-url written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/blawesom/rust-url 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 bitflags v1.0.5
[INFO] [stderr]   Downloaded unicase v2.4.0
[INFO] [stderr]   Downloaded cc v1.0.36
[INFO] [stderr]   Downloaded ryu v0.2.8
[INFO] [stderr]   Downloaded regex v1.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 933e06950a4c88b19afeefa4e4c4a4b4b3c01fff6fb5c4a78d5660fb529b8c96
[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" "933e06950a4c88b19afeefa4e4c4a4b4b3c01fff6fb5c4a78d5660fb529b8c96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "933e06950a4c88b19afeefa4e4c4a4b4b3c01fff6fb5c4a78d5660fb529b8c96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "933e06950a4c88b19afeefa4e4c4a4b4b3c01fff6fb5c4a78d5660fb529b8c96", kill_on_drop: false }`
[INFO] [stdout] 933e06950a4c88b19afeefa4e4c4a4b4b3c01fff6fb5c4a78d5660fb529b8c96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b72436cd773c4870fe55be59d24a4ed838bc0049aa026797c419af7481f64724
[INFO] running `Command { std: "docker" "start" "-a" "b72436cd773c4870fe55be59d24a4ed838bc0049aa026797c419af7481f64724", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling openssl v0.10.21
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking h2 v0.1.18
[INFO] [stderr]     Checking cookie_store v0.5.1
[INFO] [stderr]     Checking console v0.7.5
[INFO] [stderr]     Checking tokio v0.1.19
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking hyper v0.12.28
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.16
[INFO] [stderr]  Documenting rust-url v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `{`, found keyword `let`
[INFO] [stdout]   --> src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     if url
[INFO] [stdout]    |     -- this `if` expression has a condition, but no block
[INFO] [stdout] 35 |     
[INFO] [stdout] 36 |     let target_url = 
[INFO] [stdout]    |     ^^^ expected `{`
[INFO] [stdout]    |
[INFO] [stdout] help: try placing this code inside a block
[INFO] [stdout]    |
[INFO] [stdout] 36 |     { let target_url = 
[INFO] [stdout] 37 | 
[INFO] [stdout] 38 |     let body = reqwest::get(url)?
[INFO] [stdout] 39 |                     .text()?; }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `let` expressions in this position are experimental
[INFO] [stdout]   --> src/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     let body = reqwest::get(url)?
[INFO] [stdout] 39 | |                     .text()?;
[INFO] [stdout]    | |____________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `rust-url`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name rust_url 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 clap=/opt/rustwide/target/debug/deps/libclap-a11872c861235bfa.rmeta --extern console=/opt/rustwide/target/debug/deps/libconsole-f0eeb4fecc9b0733.rmeta --extern indicatif=/opt/rustwide/target/debug/deps/libindicatif-f388ac9f0155819f.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-4e07dbe3ac32f1c7.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "b72436cd773c4870fe55be59d24a4ed838bc0049aa026797c419af7481f64724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b72436cd773c4870fe55be59d24a4ed838bc0049aa026797c419af7481f64724", kill_on_drop: false }`
[INFO] [stdout] b72436cd773c4870fe55be59d24a4ed838bc0049aa026797c419af7481f64724