[INFO] cloning repository https://github.com/jxs/gotham-middleware-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jxs/gotham-middleware-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjxs%2Fgotham-middleware-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjxs%2Fgotham-middleware-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 081c90c776199e81ef187a0a00002e680e237773
[INFO] documenting jxs/gotham-middleware-example 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%2Fjxs%2Fgotham-middleware-example" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jxs/gotham-middleware-example 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/jxs/gotham-middleware-example
[INFO] finished tweaking git repo https://github.com/jxs/gotham-middleware-example
[INFO] tweaked toml for git repo https://github.com/jxs/gotham-middleware-example written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jxs/gotham-middleware-example 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]     Updating git repository `https://github.com/gotham-rs/gotham.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures v0.1.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 9751e62069602b341421878308b80ea4654daefaa20f2e6af201c274b9d76446
[INFO] running `Command { std: "docker" "start" "-a" "9751e62069602b341421878308b80ea4654daefaa20f2e6af201c274b9d76446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9751e62069602b341421878308b80ea4654daefaa20f2e6af201c274b9d76446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9751e62069602b341421878308b80ea4654daefaa20f2e6af201c274b9d76446", kill_on_drop: false }`
[INFO] [stdout] 9751e62069602b341421878308b80ea4654daefaa20f2e6af201c274b9d76446
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] d3632fca9c4ba5d0e3f1c994e772fd8b712f55b10ce104f931d26025f56358f1
[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" "d3632fca9c4ba5d0e3f1c994e772fd8b712f55b10ce104f931d26025f56358f1", kill_on_drop: false }`
[INFO] [stderr]     Checking futures v0.1.22
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]    Compiling cc v1.0.17
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[INFO] [stderr]    Compiling gotham_derive v0.3.0-dev (https://github.com/gotham-rs/gotham.git#d0b35b16)
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[INFO] [stderr]     Checking gotham v0.3.0-dev (https://github.com/gotham-rs/gotham.git#d0b35b16)
[INFO] [stderr]  Documenting gotham_examples_middleware_introduction v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |   ///     1. That the struct implements the `gotham::middleware::NewMiddleware` trait which allows
[INFO] [stdout]    |  _________^
[INFO] [stdout] 36 | | ///        the Gotham web framework to create a new instance of your middleware to service every
[INFO] [stdout] 37 | | ///        request. In many cases, as we're doing here, this can simply be derived.
[INFO] [stdout] 38 | | ///     2. That the struct implements the `gotham::middleware::Middleware` trait as we're doing
[INFO] [stdout] 39 | | ///        next.
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: error from rustc: unknown start of token: `
[INFO] [stdout]    = note: error from rustc: unknown start of token: `
[INFO] [stdout]    = note: error from rustc: unknown start of token: `
[INFO] [stdout]    = note: error from rustc: unknown start of token: `
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.81s
[INFO] running `Command { std: "docker" "inspect" "d3632fca9c4ba5d0e3f1c994e772fd8b712f55b10ce104f931d26025f56358f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3632fca9c4ba5d0e3f1c994e772fd8b712f55b10ce104f931d26025f56358f1", kill_on_drop: false }`
[INFO] [stdout] d3632fca9c4ba5d0e3f1c994e772fd8b712f55b10ce104f931d26025f56358f1