[INFO] cloning repository https://github.com/Caryyon/numerology
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Caryyon/numerology" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaryyon%2Fnumerology", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaryyon%2Fnumerology'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 484eae0bcd20d660b58d24895889a636dc2aa0b3
[INFO] checking Caryyon/numerology against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaryyon%2Fnumerology" "/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/Caryyon/numerology on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Caryyon/numerology
[INFO] finished tweaking git repo https://github.com/Caryyon/numerology
[INFO] tweaked toml for git repo https://github.com/Caryyon/numerology written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Caryyon/numerology already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ff6c5863bf15ab27df167093a1de438bf5577a2a76d26f80ff228fe1551d63f
[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" "1ff6c5863bf15ab27df167093a1de438bf5577a2a76d26f80ff228fe1551d63f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ff6c5863bf15ab27df167093a1de438bf5577a2a76d26f80ff228fe1551d63f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ff6c5863bf15ab27df167093a1de438bf5577a2a76d26f80ff228fe1551d63f", kill_on_drop: false }`
[INFO] [stdout] 1ff6c5863bf15ab27df167093a1de438bf5577a2a76d26f80ff228fe1551d63f
[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=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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fe875d34db9cb1d81bd4a5deddb8302dc19c2a108284e9e74d3fcc47bfbea34
[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" "7fe875d34db9cb1d81bd4a5deddb8302dc19c2a108284e9e74d3fcc47bfbea34", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking numerology v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `(): Sum<&u32>` is not satisfied
[INFO] [stdout]   --> src/main.rs:34:35
[INFO] [stdout]    |
[INFO] [stdout] 34 |             return new_sum.iter().sum();
[INFO] [stdout]    |                                   ^^^ the trait `Sum<&u32>` is not implemented for `()`
[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 `numerology`
[INFO] [stdout] error[E0277]: the trait bound `(): Sum<&u32>` is not satisfied
[INFO] [stdout]   --> src/main.rs:34:35
[INFO] [stdout]    |
[INFO] [stdout] 34 |             return new_sum.iter().sum();
[INFO] [stdout]    |                                   ^^^ the trait `Sum<&u32>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] 
[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] [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: build failed
[INFO] running `Command { std: "docker" "inspect" "7fe875d34db9cb1d81bd4a5deddb8302dc19c2a108284e9e74d3fcc47bfbea34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fe875d34db9cb1d81bd4a5deddb8302dc19c2a108284e9e74d3fcc47bfbea34", kill_on_drop: false }`
[INFO] [stdout] 7fe875d34db9cb1d81bd4a5deddb8302dc19c2a108284e9e74d3fcc47bfbea34