[INFO] cloning repository https://github.com/y2kappa/functional-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/y2kappa/functional-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy2kappa%2Ffunctional-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy2kappa%2Ffunctional-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d89d9c40bf850fc2b94e09a1a7e3631a8ab21259
[INFO] checking y2kappa/functional-rust against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy2kappa%2Ffunctional-rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/y2kappa/functional-rust on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/y2kappa/functional-rust
[INFO] finished tweaking git repo https://github.com/y2kappa/functional-rust
[INFO] tweaked toml for git repo https://github.com/y2kappa/functional-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/y2kappa/functional-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1560ea43aa89459e010267e79ad0eb69bfdd1366ff48acf37c8de310d04bd410
[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" "1560ea43aa89459e010267e79ad0eb69bfdd1366ff48acf37c8de310d04bd410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1560ea43aa89459e010267e79ad0eb69bfdd1366ff48acf37c8de310d04bd410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1560ea43aa89459e010267e79ad0eb69bfdd1366ff48acf37c8de310d04bd410", kill_on_drop: false }`
[INFO] [stdout] 1560ea43aa89459e010267e79ad0eb69bfdd1366ff48acf37c8de310d04bd410
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b670b9965c93fee031e1fd94b1bffdaf4c7e3c88efb8a38245dd6f008090d57
[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" "7b670b9965c93fee031e1fd94b1bffdaf4c7e3c88efb8a38245dd6f008090d57", kill_on_drop: false }`
[INFO] [stderr]     Checking functional v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected type, found `{`
[INFO] [stdout]   --> src/main.rs:53:35
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn flatten<T>(v: &Vec<Vec<T>>) -> {
[INFO] [stdout]    |                                   ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `{`
[INFO] [stdout]   --> src/main.rs:53:35
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn flatten<T>(v: &Vec<Vec<T>>) -> {
[INFO] [stdout]    |                                   ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `functional`
[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" "7b670b9965c93fee031e1fd94b1bffdaf4c7e3c88efb8a38245dd6f008090d57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b670b9965c93fee031e1fd94b1bffdaf4c7e3c88efb8a38245dd6f008090d57", kill_on_drop: false }`
[INFO] [stdout] 7b670b9965c93fee031e1fd94b1bffdaf4c7e3c88efb8a38245dd6f008090d57