[INFO] cloning repository https://github.com/treemcgee42/c-compiler-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/treemcgee42/c-compiler-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreemcgee42%2Fc-compiler-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreemcgee42%2Fc-compiler-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8ea2c065ff75dc55cc8b78f46f3de1d5e040edb
[INFO] checking treemcgee42/c-compiler-rust against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreemcgee42%2Fc-compiler-rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/treemcgee42/c-compiler-rust 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/treemcgee42/c-compiler-rust
[INFO] finished tweaking git repo https://github.com/treemcgee42/c-compiler-rust
[INFO] tweaked toml for git repo https://github.com/treemcgee42/c-compiler-rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/treemcgee42/c-compiler-rust 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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6d2346bcac8b6a30dd45a8d6df862d9b80ff382513682121f87dc2309eb87cb3
[INFO] running `Command { std: "docker" "start" "-a" "6d2346bcac8b6a30dd45a8d6df862d9b80ff382513682121f87dc2309eb87cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d2346bcac8b6a30dd45a8d6df862d9b80ff382513682121f87dc2309eb87cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d2346bcac8b6a30dd45a8d6df862d9b80ff382513682121f87dc2309eb87cb3", kill_on_drop: false }`
[INFO] [stdout] 6d2346bcac8b6a30dd45a8d6df862d9b80ff382513682121f87dc2309eb87cb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 36a08cd5afeeb61299ed2a00c9bb923e98943127ac27bad7c7cb9504655a1a1e
[INFO] running `Command { std: "docker" "start" "-a" "36a08cd5afeeb61299ed2a00c9bb923e98943127ac27bad7c7cb9504655a1a1e", kill_on_drop: false }`
[INFO] [stderr]     Checking c-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ASTNode` is never constructed
[INFO] [stdout]   --> src/defs.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct ASTNode {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ASTNode` is never constructed
[INFO] [stdout]   --> src/defs.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct ASTNode {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ASTNodeOp` is never used
[INFO] [stdout]   --> src/defs.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub enum ASTNodeOp {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ASTNodeOp` is never used
[INFO] [stdout]   --> src/defs.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub enum ASTNodeOp {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new`, `new_leaf`, and `new_unary` are never used
[INFO] [stdout]   --> src/defs.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl ASTNode {
[INFO] [stdout]    | ------------ associated functions in this implementation
[INFO] [stdout] 44 |     // ---- Build and return heap-allocated ASTNode
[INFO] [stdout] 45 |     pub fn new(op: ASTNodeOp, left: Option<Box<ASTNode>>, right: Option<Box<ASTNode>>) -> Box<ASTNode> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn new_leaf(op: ASTNodeOp) -> Box<ASTNode> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn new_unary(op: ASTNodeOp, left: Box<ASTNode>) -> Box<ASTNode> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new`, `new_leaf`, and `new_unary` are never used
[INFO] [stdout]   --> src/defs.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl ASTNode {
[INFO] [stdout]    | ------------ associated functions in this implementation
[INFO] [stdout] 44 |     // ---- Build and return heap-allocated ASTNode
[INFO] [stdout] 45 |     pub fn new(op: ASTNodeOp, left: Option<Box<ASTNode>>, right: Option<Box<ASTNode>>) -> Box<ASTNode> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn new_leaf(op: ASTNodeOp) -> Box<ASTNode> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn new_unary(op: ASTNodeOp, left: Box<ASTNode>) -> Box<ASTNode> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `token_to_astop` is never used
[INFO] [stdout]  --> src/parser.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn token_to_astop(tok: TokenKind) -> ASTNodeOp {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `token_to_astop` is never used
[INFO] [stdout]  --> src/parser.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn token_to_astop(tok: TokenKind) -> ASTNodeOp {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "36a08cd5afeeb61299ed2a00c9bb923e98943127ac27bad7c7cb9504655a1a1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36a08cd5afeeb61299ed2a00c9bb923e98943127ac27bad7c7cb9504655a1a1e", kill_on_drop: false }`
[INFO] [stdout] 36a08cd5afeeb61299ed2a00c9bb923e98943127ac27bad7c7cb9504655a1a1e