[INFO] cloning repository https://github.com/robertDurst/struct_gen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robertDurst/struct_gen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrobertDurst%2Fstruct_gen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FrobertDurst%2Fstruct_gen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b5bf8249826d75de07dc9fd56ece5d7cdc904b7
[INFO] documenting robertDurst/struct_gen 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%2FrobertDurst%2Fstruct_gen" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robertDurst/struct_gen 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/robertDurst/struct_gen
[INFO] finished tweaking git repo https://github.com/robertDurst/struct_gen
[INFO] tweaked toml for git repo https://github.com/robertDurst/struct_gen written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/robertDurst/struct_gen 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 struct_gen_derive v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 0fcdec443a4b98d6701febc55b0710dd1d5bda1cabdcfc215101cd1c964a08a6
[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" "0fcdec443a4b98d6701febc55b0710dd1d5bda1cabdcfc215101cd1c964a08a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fcdec443a4b98d6701febc55b0710dd1d5bda1cabdcfc215101cd1c964a08a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fcdec443a4b98d6701febc55b0710dd1d5bda1cabdcfc215101cd1c964a08a6", kill_on_drop: false }`
[INFO] [stdout] 0fcdec443a4b98d6701febc55b0710dd1d5bda1cabdcfc215101cd1c964a08a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 7782ebac0d9d320d909298cc73af3de73d6fd65aa399ff4afdd9e172fa928ca1
[INFO] running `Command { std: "docker" "start" "-a" "7782ebac0d9d320d909298cc73af3de73d6fd65aa399ff4afdd9e172fa928ca1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]    Compiling struct_gen_derive v0.1.0
[INFO] [stderr]  Documenting struct_gen v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown attribute `no-run`. Did you mean `no_run`?
[INFO] [stdout]    --> src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | / /// `impl_zero!` is a macro for implementing the `Zero` trait in an
[INFO] [stdout] 111 | | /// ergonomically friendly way.
[INFO] [stdout] 112 | | ///
[INFO] [stdout] 113 | | /// # impl_zero
[INFO] [stdout] ...   |
[INFO] [stdout] 124 | | /// impl_zero!(i32, 0);
[INFO] [stdout] 125 | | /// ```
[INFO] [stdout]     | |_______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_codeblock_attributes)]` on by default
[INFO] [stdout]     = help: the code block will either not be tested if not marked as a rust one or will be run (which you might not want)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown attribute `no-run`. Did you mean `no_run`?
[INFO] [stdout]    --> src/lib.rs:110:1
[INFO] [stdout]     |
[INFO] [stdout] 110 | / /// `impl_zero!` is a macro for implementing the `Zero` trait in an
[INFO] [stdout] 111 | | /// ergonomically friendly way.
[INFO] [stdout] 112 | | ///
[INFO] [stdout] 113 | | /// # impl_zero
[INFO] [stdout] ...   |
[INFO] [stdout] 124 | | /// impl_zero!(i32, 0);
[INFO] [stdout] 125 | | /// ```
[INFO] [stdout]     | |_______^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the code block will either not be tested if not marked as a rust one or will be run (which you might not want)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.70s
[INFO] running `Command { std: "docker" "inspect" "7782ebac0d9d320d909298cc73af3de73d6fd65aa399ff4afdd9e172fa928ca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7782ebac0d9d320d909298cc73af3de73d6fd65aa399ff4afdd9e172fa928ca1", kill_on_drop: false }`
[INFO] [stdout] 7782ebac0d9d320d909298cc73af3de73d6fd65aa399ff4afdd9e172fa928ca1