[INFO] cloning repository https://github.com/panicbit/rust2dart
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/panicbit/rust2dart" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpanicbit%2Frust2dart", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpanicbit%2Frust2dart'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9184f85329ce684ee2c4f4b67c207ee201152224
[INFO] checking panicbit/rust2dart against try#0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9 for pr-147185
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpanicbit%2Frust2dart" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/panicbit/rust2dart
[INFO] finished tweaking git repo https://github.com/panicbit/rust2dart
[INFO] tweaked toml for git repo https://github.com/panicbit/rust2dart written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/panicbit/rust2dart on toolchain 0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/panicbit/rust2dart 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" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anyhow v1.0.55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db59b8cbeffae551b878037131896974cdd1be320213651a0825312f75518b95
[INFO] running `Command { std: "docker" "start" "-a" "db59b8cbeffae551b878037131896974cdd1be320213651a0825312f75518b95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db59b8cbeffae551b878037131896974cdd1be320213651a0825312f75518b95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db59b8cbeffae551b878037131896974cdd1be320213651a0825312f75518b95", kill_on_drop: false }`
[INFO] [stdout] db59b8cbeffae551b878037131896974cdd1be320213651a0825312f75518b95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f68f1c3e38efdfbaeb768730a3640fd749301e87c2410ebb756339a3f4b7909
[INFO] running `Command { std: "docker" "start" "-a" "4f68f1c3e38efdfbaeb768730a3640fd749301e87c2410ebb756339a3f4b7909", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling anyhow v1.0.55
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking quote v1.0.15
[INFO] [stderr]     Checking rust2dart v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `import::Import`
[INFO] [stdout]  --> src/dart.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use import::Import;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `import::Import`
[INFO] [stdout]  --> src/dart.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use import::Import;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Member` is never used
[INFO] [stdout]   --> src/dart/class.rs:52:10
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub enum Member {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Short` and `Long` are never constructed
[INFO] [stdout]   --> src/dart/class.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub enum ItemBody {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 78 |     Short(Expr),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 79 |     Long(Statements)
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Import` is never constructed
[INFO] [stdout]  --> src/dart/import.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Import {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Selector` is never used
[INFO] [stdout]  --> src/dart/import.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum Selector {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Fn` is never constructed
[INFO] [stdout]   --> src/dart/type.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub enum Arguments {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 42 |     Fn(FnTypeArguments)
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Arguments` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Member` is never used
[INFO] [stdout]   --> src/dart/class.rs:52:10
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub enum Member {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `return_type` and `args` are never read
[INFO] [stdout]   --> src/dart/type.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct FnTypeArguments {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 47 |     return_type: Box<Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 48 |     args: Vec<Type>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FnTypeArguments` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Short` and `Long` are never constructed
[INFO] [stdout]   --> src/dart/class.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub enum ItemBody {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 78 |     Short(Expr),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 79 |     Long(Statements)
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Import` is never constructed
[INFO] [stdout]  --> src/dart/import.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Import {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Selector` is never used
[INFO] [stdout]  --> src/dart/import.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum Selector {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Fn` is never constructed
[INFO] [stdout]   --> src/dart/type.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub enum Arguments {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 42 |     Fn(FnTypeArguments)
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Arguments` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `return_type` and `args` are never read
[INFO] [stdout]   --> src/dart/type.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct FnTypeArguments {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 47 |     return_type: Box<Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 48 |     args: Vec<Type>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FnTypeArguments` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.90s
[INFO] running `Command { std: "docker" "inspect" "4f68f1c3e38efdfbaeb768730a3640fd749301e87c2410ebb756339a3f4b7909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f68f1c3e38efdfbaeb768730a3640fd749301e87c2410ebb756339a3f4b7909", kill_on_drop: false }`
[INFO] [stdout] 4f68f1c3e38efdfbaeb768730a3640fd749301e87c2410ebb756339a3f4b7909