[INFO] updating cached repository https://github.com/feminstincts/serva
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 364b1d78e3d2129ca714b5e10cc2144012000ef3
[INFO] documenting feminstincts/serva against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffeminstincts%2Fserva" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/feminstincts/serva on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/feminstincts/serva
[INFO] finished tweaking git repo https://github.com/feminstincts/serva
[INFO] tweaked toml for git repo https://github.com/feminstincts/serva written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/feminstincts/serva already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ab82cc0d46ea19ef2873c13275cad20a1c388455f94e3a21ff53764c560883f
[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" "0ab82cc0d46ea19ef2873c13275cad20a1c388455f94e3a21ff53764c560883f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ab82cc0d46ea19ef2873c13275cad20a1c388455f94e3a21ff53764c560883f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ab82cc0d46ea19ef2873c13275cad20a1c388455f94e3a21ff53764c560883f", kill_on_drop: false }`
[INFO] [stdout] 0ab82cc0d46ea19ef2873c13275cad20a1c388455f94e3a21ff53764c560883f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de472d5c892d40a35fb5088ae3caeda95157a2b317141045592355b3ed301eec
[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" "de472d5c892d40a35fb5088ae3caeda95157a2b317141045592355b3ed301eec", kill_on_drop: false }`
[INFO] [stderr]     Checking serva v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting serva v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `(dyn std::ops::FnOnce() + 'static)` cannot be sent between threads safely
[INFO] [stdout]    --> src/lib.rs:52:22
[INFO] [stdout]     |
[INFO] [stdout] 52  |         let thread = thread::spawn(move || {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^ `(dyn std::ops::FnOnce() + 'static)` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::marker::Send` is not implemented for `(dyn std::ops::FnOnce() + 'static)`
[INFO] [stdout]     = note: required because of the requirements on the impl of `std::marker::Send` for `std::ptr::Unique<(dyn std::ops::FnOnce() + 'static)>`
[INFO] [stdout]     = note: required because it appears within the type `std::boxed::Box<(dyn std::ops::FnOnce() + 'static)>`
[INFO] [stdout]     = note: required because of the requirements on the impl of `std::marker::Send` for `std::sync::mpsc::Receiver<std::boxed::Box<(dyn std::ops::FnOnce() + 'static)>>`
[INFO] [stdout]     = note: required because of the requirements on the impl of `std::marker::Send` for `std::sync::Mutex<std::sync::mpsc::Receiver<std::boxed::Box<(dyn std::ops::FnOnce() + 'static)>>>`
[INFO] [stdout]     = note: required because of the requirements on the impl of `std::marker::Send` for `std::sync::Arc<std::sync::Mutex<std::sync::mpsc::Receiver<std::boxed::Box<(dyn std::ops::FnOnce() + 'static)>>>>`
[INFO] [stdout]     = note: required because it appears within the type `[closure@src/lib.rs:52:36: 58:10 receiver:std::sync::Arc<std::sync::Mutex<std::sync::mpsc::Receiver<std::boxed::Box<(dyn std::ops::FnOnce() + 'static)>>>>, id:usize]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serva`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "de472d5c892d40a35fb5088ae3caeda95157a2b317141045592355b3ed301eec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de472d5c892d40a35fb5088ae3caeda95157a2b317141045592355b3ed301eec", kill_on_drop: false }`
[INFO] [stdout] de472d5c892d40a35fb5088ae3caeda95157a2b317141045592355b3ed301eec