[INFO] cloning repository https://github.com/jovecodes/tau
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jovecodes/tau" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjovecodes%2Ftau", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjovecodes%2Ftau'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54722de92c0931595e7b86847d070a6b28b764e9
[INFO] checking jovecodes/tau against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjovecodes%2Ftau" "/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/jovecodes/tau 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/jovecodes/tau
[INFO] finished tweaking git repo https://github.com/jovecodes/tau
[INFO] tweaked toml for git repo https://github.com/jovecodes/tau written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jovecodes/tau 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] ffe10e53c320bb9b1050a8d8b7ec43b9e7cf0dafbcb2c7119a73c74112a85f2a
[INFO] running `Command { std: "docker" "start" "-a" "ffe10e53c320bb9b1050a8d8b7ec43b9e7cf0dafbcb2c7119a73c74112a85f2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffe10e53c320bb9b1050a8d8b7ec43b9e7cf0dafbcb2c7119a73c74112a85f2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffe10e53c320bb9b1050a8d8b7ec43b9e7cf0dafbcb2c7119a73c74112a85f2a", kill_on_drop: false }`
[INFO] [stdout] ffe10e53c320bb9b1050a8d8b7ec43b9e7cf0dafbcb2c7119a73c74112a85f2a
[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] 7057c357b060fc5d2f683ef9cf434f1a44fc0f96db3b6e04e6d98d4db2972c38
[INFO] running `Command { std: "docker" "start" "-a" "7057c357b060fc5d2f683ef9cf434f1a44fc0f96db3b6e04e6d98d4db2972c38", kill_on_drop: false }`
[INFO] [stderr]     Checking tau v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `warn` and `info` are never used
[INFO] [stdout]   --> src/error.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub trait Log {
[INFO] [stdout]    |           --- methods in this trait
[INFO] [stdout] 43 |     fn error(&self, msg: String, help: String, span: &Span) -> !;
[INFO] [stdout] 44 |     fn warn(&self, msg: String, help: String, span: &Span);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 45 |     fn info(&self, msg: String, help: String, span: &Span);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/parse.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Scope {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 16 |     pub id: ScopeID,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Scope` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `array_dimension` is never used
[INFO] [stdout]   --> src/parse.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl VarTypeKind {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 78 |     fn array_dimension(&self) -> i64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `modules` is never read
[INFO] [stdout]    --> src/parse.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 189 | pub struct LexVisitor {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 196 |     pub modules: HashMap<String, ScopeID>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LexVisitor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `warn` and `info` are never used
[INFO] [stdout]   --> src/error.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub trait Log {
[INFO] [stdout]    |           --- methods in this trait
[INFO] [stdout] 43 |     fn error(&self, msg: String, help: String, span: &Span) -> !;
[INFO] [stdout] 44 |     fn warn(&self, msg: String, help: String, span: &Span);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 45 |     fn info(&self, msg: String, help: String, span: &Span);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/parse.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Scope {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 16 |     pub id: ScopeID,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Scope` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `array_dimension` is never used
[INFO] [stdout]   --> src/parse.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl VarTypeKind {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 78 |     fn array_dimension(&self) -> i64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `modules` is never read
[INFO] [stdout]    --> src/parse.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 189 | pub struct LexVisitor {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 196 |     pub modules: HashMap<String, ScopeID>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LexVisitor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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 0.29s
[INFO] running `Command { std: "docker" "inspect" "7057c357b060fc5d2f683ef9cf434f1a44fc0f96db3b6e04e6d98d4db2972c38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7057c357b060fc5d2f683ef9cf434f1a44fc0f96db3b6e04e6d98d4db2972c38", kill_on_drop: false }`
[INFO] [stdout] 7057c357b060fc5d2f683ef9cf434f1a44fc0f96db3b6e04e6d98d4db2972c38