[INFO] cloning repository https://github.com/feminstincts/serva
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/feminstincts/serva" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffeminstincts%2Fserva", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffeminstincts%2Fserva'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 364b1d78e3d2129ca714b5e10cc2144012000ef3
[INFO] testing feminstincts/serva against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffeminstincts%2Fserva" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/feminstincts/serva on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-4/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 707d326cc2df5e2d74f1e97aadae254fd01f9551110d4bc89b14b558ff3b2050
[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" "707d326cc2df5e2d74f1e97aadae254fd01f9551110d4bc89b14b558ff3b2050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "707d326cc2df5e2d74f1e97aadae254fd01f9551110d4bc89b14b558ff3b2050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "707d326cc2df5e2d74f1e97aadae254fd01f9551110d4bc89b14b558ff3b2050", kill_on_drop: false }`
[INFO] [stdout] 707d326cc2df5e2d74f1e97aadae254fd01f9551110d4bc89b14b558ff3b2050
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--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] 528a0b119cd215fdbf9754c56905358b40dacbb6e2755e1b0ba9056f41808a91
[INFO] running `Command { std: "docker" "start" "-a" "528a0b119cd215fdbf9754c56905358b40dacbb6e2755e1b0ba9056f41808a91", kill_on_drop: false }`
[INFO] [stderr]    Compiling serva v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `(dyn 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 FnOnce() + 'static)` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Send` is not implemented for `(dyn FnOnce() + 'static)`
[INFO] [stdout]     = note: required because of the requirements on the impl of `Send` for `Unique<(dyn FnOnce() + 'static)>`
[INFO] [stdout]     = note: required because it appears within the type `Box<(dyn FnOnce() + 'static)>`
[INFO] [stdout]     = note: required because of the requirements on the impl of `Send` for `std::sync::mpsc::Receiver<Box<(dyn FnOnce() + 'static)>>`
[INFO] [stdout]     = note: required because of the requirements on the impl of `Sync` for `Mutex<std::sync::mpsc::Receiver<Box<(dyn FnOnce() + 'static)>>>`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required because of the requirements on the impl of `Send` for `Arc<Mutex<std::sync::mpsc::Receiver<Box<(dyn FnOnce() + 'static)>>>>`
[INFO] [stdout]     = note: required because it appears within the type `[closure@src/lib.rs:52:36: 58:10]`
[INFO] [stdout] note: required by a bound in `spawn`
[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` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "528a0b119cd215fdbf9754c56905358b40dacbb6e2755e1b0ba9056f41808a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "528a0b119cd215fdbf9754c56905358b40dacbb6e2755e1b0ba9056f41808a91", kill_on_drop: false }`
[INFO] [stdout] 528a0b119cd215fdbf9754c56905358b40dacbb6e2755e1b0ba9056f41808a91