[INFO] fetching crate bmx 0.0.2...
[INFO] checking bmx-0.0.2 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate bmx 0.0.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate bmx 0.0.2 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 crates.io crate bmx 0.0.2
[INFO] finished tweaking crates.io crate bmx 0.0.2
[INFO] tweaked toml for crates.io crate bmx 0.0.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lexpr-macros v0.2.2
[INFO] [stderr]   Downloaded lexpr v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6f99a8806a81099ccdec0b81f6099b534bb6efca40d6a2d7b3d58aec6faef975
[INFO] running `Command { std: "docker" "start" "-a" "6f99a8806a81099ccdec0b81f6099b534bb6efca40d6a2d7b3d58aec6faef975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f99a8806a81099ccdec0b81f6099b534bb6efca40d6a2d7b3d58aec6faef975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f99a8806a81099ccdec0b81f6099b534bb6efca40d6a2d7b3d58aec6faef975", kill_on_drop: false }`
[INFO] [stdout] 6f99a8806a81099ccdec0b81f6099b534bb6efca40d6a2d7b3d58aec6faef975
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a9d6ab0a7264ec0620435839a8189e0ee235bdb70eaf8476c72148c27ece76f3
[INFO] running `Command { std: "docker" "start" "-a" "a9d6ab0a7264ec0620435839a8189e0ee235bdb70eaf8476c72148c27ece76f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling lexpr-macros v0.2.2
[INFO] [stderr]     Checking lexpr v0.2.7
[INFO] [stderr]     Checking bmx v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `root_id` and `branch_ids` are never read
[INFO] [stdout]    --> src/forest.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |     NoSuchBranch {
[INFO] [stdout]     |     ------------ fields in this variant
[INFO] [stdout] 103 |         root_name: Ident,
[INFO] [stdout] 104 |         root_id: NodeId,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 105 |         branch_ids: Vec<usize>,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InnerError` 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: field `tree` is never read
[INFO] [stdout]    --> src/exec.rs:732:5
[INFO] [stdout]     |
[INFO] [stdout] 731 | pub struct BranchIter<'a> {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] 732 |     tree: &'a Tree,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BranchIter` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `roots` is never read
[INFO] [stdout]    --> src/exec.rs:858:5
[INFO] [stdout]     |
[INFO] [stdout] 856 | pub struct PreparedRoot {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 857 |     root_id: ExecNodeId,
[INFO] [stdout] 858 |     roots: HashMap<NodeId, ExecNodeId>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PreparedRoot` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `root_id` and `branch_ids` are never read
[INFO] [stdout]    --> src/forest.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |     NoSuchBranch {
[INFO] [stdout]     |     ------------ fields in this variant
[INFO] [stdout] 103 |         root_name: Ident,
[INFO] [stdout] 104 |         root_id: NodeId,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 105 |         branch_ids: Vec<usize>,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InnerError` 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: field `tree` is never read
[INFO] [stdout]    --> src/exec.rs:732:5
[INFO] [stdout]     |
[INFO] [stdout] 731 | pub struct BranchIter<'a> {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] 732 |     tree: &'a Tree,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BranchIter` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `roots` is never read
[INFO] [stdout]    --> src/exec.rs:858:5
[INFO] [stdout]     |
[INFO] [stdout] 856 | pub struct PreparedRoot {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 857 |     root_id: ExecNodeId,
[INFO] [stdout] 858 |     roots: HashMap<NodeId, ExecNodeId>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PreparedRoot` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "a9d6ab0a7264ec0620435839a8189e0ee235bdb70eaf8476c72148c27ece76f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9d6ab0a7264ec0620435839a8189e0ee235bdb70eaf8476c72148c27ece76f3", kill_on_drop: false }`
[INFO] [stdout] a9d6ab0a7264ec0620435839a8189e0ee235bdb70eaf8476c72148c27ece76f3