[INFO] cloning repository https://github.com/ShaneQi/podfile_lock_reader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShaneQi/podfile_lock_reader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShaneQi%2Fpodfile_lock_reader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShaneQi%2Fpodfile_lock_reader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f86fd84423c258992763ab809364be0b2820ded
[INFO] checking ShaneQi/podfile_lock_reader against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShaneQi%2Fpodfile_lock_reader" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShaneQi/podfile_lock_reader on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ShaneQi/podfile_lock_reader
[INFO] finished tweaking git repo https://github.com/ShaneQi/podfile_lock_reader
[INFO] tweaked toml for git repo https://github.com/ShaneQi/podfile_lock_reader written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ShaneQi/podfile_lock_reader already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc00c3c87578947aa49fd15e2d26b73bc45ab35416f9d7f8867c273f1ccc24fa
[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" "dc00c3c87578947aa49fd15e2d26b73bc45ab35416f9d7f8867c273f1ccc24fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc00c3c87578947aa49fd15e2d26b73bc45ab35416f9d7f8867c273f1ccc24fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc00c3c87578947aa49fd15e2d26b73bc45ab35416f9d7f8867c273f1ccc24fa", kill_on_drop: false }`
[INFO] [stdout] dc00c3c87578947aa49fd15e2d26b73bc45ab35416f9d7f8867c273f1ccc24fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5e9b7bf0e8e7c172c1e9c9eb6bc1c57b59011f1f1c4ada073a6340aa9032e62
[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" "e5e9b7bf0e8e7c172c1e9c9eb6bc1c57b59011f1f1c4ada073a6340aa9032e62", kill_on_drop: false }`
[INFO] [stderr]     Checking podfile_lock_reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `rec`
[INFO] [stdout]   --> src/main.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn rec(map: &LinkedHashMap<String, Vec<String>>, depth: u8, keys: Vec<String>) {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rec`
[INFO] [stdout]   --> src/main.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn rec(map: &LinkedHashMap<String, Vec<String>>, depth: u8, keys: Vec<String>) {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e5e9b7bf0e8e7c172c1e9c9eb6bc1c57b59011f1f1c4ada073a6340aa9032e62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5e9b7bf0e8e7c172c1e9c9eb6bc1c57b59011f1f1c4ada073a6340aa9032e62", kill_on_drop: false }`
[INFO] [stdout] e5e9b7bf0e8e7c172c1e9c9eb6bc1c57b59011f1f1c4ada073a6340aa9032e62