[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] testing y2kappa/functional-rust against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy2kappa%2Ffunctional-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/y2kappa/functional-rust on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", 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-7/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70ebfc2e13f42b1978f855d1e5968e2d9ed98b5cc42182abc63e43dc22a151da
[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" "70ebfc2e13f42b1978f855d1e5968e2d9ed98b5cc42182abc63e43dc22a151da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70ebfc2e13f42b1978f855d1e5968e2d9ed98b5cc42182abc63e43dc22a151da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70ebfc2e13f42b1978f855d1e5968e2d9ed98b5cc42182abc63e43dc22a151da", kill_on_drop: false }`
[INFO] [stdout] 70ebfc2e13f42b1978f855d1e5968e2d9ed98b5cc42182abc63e43dc22a151da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 184e7cda7ac2e812b70bbb65e04c6f8bae239705ed631d2674489f06813be6f8
[INFO] running `Command { std: "docker" "start" "-a" "184e7cda7ac2e812b70bbb65e04c6f8bae239705ed631d2674489f06813be6f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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] [stderr] error: could not compile `functional`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "184e7cda7ac2e812b70bbb65e04c6f8bae239705ed631d2674489f06813be6f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "184e7cda7ac2e812b70bbb65e04c6f8bae239705ed631d2674489f06813be6f8", kill_on_drop: false }`
[INFO] [stdout] 184e7cda7ac2e812b70bbb65e04c6f8bae239705ed631d2674489f06813be6f8