[INFO] cloning repository https://github.com/vlisivka/basic_binary_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vlisivka/basic_binary_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlisivka%2Fbasic_binary_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlisivka%2Fbasic_binary_tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5b73d4962ea92952c5c68ebd12eb70e3d6953f6
[INFO] checking vlisivka/basic_binary_tree against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlisivka%2Fbasic_binary_tree" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vlisivka/basic_binary_tree on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vlisivka/basic_binary_tree
[INFO] finished tweaking git repo https://github.com/vlisivka/basic_binary_tree
[INFO] tweaked toml for git repo https://github.com/vlisivka/basic_binary_tree written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vlisivka/basic_binary_tree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 140ab8786369b8565906ad9a258e714aabb1362b5c7919a5df1f3f61adda3741
[INFO] running `Command { std: "docker" "start" "-a" "140ab8786369b8565906ad9a258e714aabb1362b5c7919a5df1f3f61adda3741", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "140ab8786369b8565906ad9a258e714aabb1362b5c7919a5df1f3f61adda3741", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "140ab8786369b8565906ad9a258e714aabb1362b5c7919a5df1f3f61adda3741", kill_on_drop: false }`
[INFO] [stdout] 140ab8786369b8565906ad9a258e714aabb1362b5c7919a5df1f3f61adda3741
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddc8c8f5d79e66e6a1180bbb183b2fa21b3c95c34511e72505152edc63d8f3e4
[INFO] running `Command { std: "docker" "start" "-a" "ddc8c8f5d79e66e6a1180bbb183b2fa21b3c95c34511e72505152edc63d8f3e4", kill_on_drop: false }`
[INFO] [stderr]     Checking basic_binary_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `value` and `parent` are never read
[INFO] [stdout]   --> src/main.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | struct Node<K, V> {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 5  |     key: K,
[INFO] [stdout] 6  |     value: V,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     parent: Option<*mut Node<K, V>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value` and `parent` are never read
[INFO] [stdout]   --> src/main.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | struct Node<K, V> {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 5  |     key: K,
[INFO] [stdout] 6  |     value: V,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     parent: Option<*mut Node<K, V>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "ddc8c8f5d79e66e6a1180bbb183b2fa21b3c95c34511e72505152edc63d8f3e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddc8c8f5d79e66e6a1180bbb183b2fa21b3c95c34511e72505152edc63d8f3e4", kill_on_drop: false }`
[INFO] [stdout] ddc8c8f5d79e66e6a1180bbb183b2fa21b3c95c34511e72505152edc63d8f3e4