[INFO] cloning repository https://github.com/MordecaiMalignatus/checklists
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MordecaiMalignatus/checklists" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMordecaiMalignatus%2Fchecklists", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMordecaiMalignatus%2Fchecklists'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8dd04f379543161f7fd0ac8514ae6bd17a609aac
[INFO] checking MordecaiMalignatus/checklists against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMordecaiMalignatus%2Fchecklists" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MordecaiMalignatus/checklists on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MordecaiMalignatus/checklists
[INFO] finished tweaking git repo https://github.com/MordecaiMalignatus/checklists
[INFO] tweaked toml for git repo https://github.com/MordecaiMalignatus/checklists written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/MordecaiMalignatus/checklists already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "metadata" "--no-deps" "--format-version=1", 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] 850a28f6339be88a49f5e1fd17975b2977d259330601449ef7a1ebbf876d0b5e
[INFO] running `Command { std: "docker" "start" "-a" "850a28f6339be88a49f5e1fd17975b2977d259330601449ef7a1ebbf876d0b5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "850a28f6339be88a49f5e1fd17975b2977d259330601449ef7a1ebbf876d0b5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "850a28f6339be88a49f5e1fd17975b2977d259330601449ef7a1ebbf876d0b5e", kill_on_drop: false }`
[INFO] [stdout] 850a28f6339be88a49f5e1fd17975b2977d259330601449ef7a1ebbf876d0b5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16d0a934d965e93ac4c738df9858c2df4bfd5343c657f95e368bb44a8c4e53a9
[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" "16d0a934d965e93ac4c738df9858c2df4bfd5343c657f95e368bb44a8c4e53a9", kill_on_drop: false }`
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking checklists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `set_children`
[INFO] [stdout]   --> src/item.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn set_children(self, children: Vec<Item>) -> Item {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_child`
[INFO] [stdout]   --> src/item.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn add_child(self, child: Item) -> Item {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.50s
[INFO] running `Command { std: "docker" "inspect" "16d0a934d965e93ac4c738df9858c2df4bfd5343c657f95e368bb44a8c4e53a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16d0a934d965e93ac4c738df9858c2df4bfd5343c657f95e368bb44a8c4e53a9", kill_on_drop: false }`
[INFO] [stdout] 16d0a934d965e93ac4c738df9858c2df4bfd5343c657f95e368bb44a8c4e53a9