[INFO] cloning repository https://github.com/Michael-F-Bryan/modern-webassembly
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Michael-F-Bryan/modern-webassembly" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Fmodern-webassembly", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Fmodern-webassembly'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] daf9400268c1cf813d8bbba9960dcec68bf9b531
[INFO] checking Michael-F-Bryan/modern-webassembly against master#80ed61fbd64936ed676c2050e7e660b5ad78c9f2 for pr-100555
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Fmodern-webassembly" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Michael-F-Bryan/modern-webassembly on toolchain 80ed61fbd64936ed676c2050e7e660b5ad78c9f2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+80ed61fbd64936ed676c2050e7e660b5ad78c9f2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Michael-F-Bryan/modern-webassembly
[INFO] finished tweaking git repo https://github.com/Michael-F-Bryan/modern-webassembly
[INFO] tweaked toml for git repo https://github.com/Michael-F-Bryan/modern-webassembly written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Michael-F-Bryan/modern-webassembly already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+80ed61fbd64936ed676c2050e7e660b5ad78c9f2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+80ed61fbd64936ed676c2050e7e660b5ad78c9f2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stderr]     Checking host v0.1.0 (/opt/rustwide/workdir/host)
[INFO] [stdout] warning: function `main_` is never used
[INFO] [stdout]   --> host/src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn main_() -> Result<(), Error> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Model` is never constructed
[INFO] [stdout]    --> host/src/main.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 | struct Model {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `model_dir` and `cmd` are never read
[INFO] [stdout]    --> host/src/main.rs:208:5
[INFO] [stdout]     |
[INFO] [stdout] 205 | struct Args {
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 208 |     model_dir: PathBuf,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 209 |     #[structopt(subcommand)]
[INFO] [stdout] 210 |     cmd: Command,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Args` 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 `model` and `args` are never read
[INFO] [stdout]    --> host/src/main.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 218 |     Run {
[INFO] [stdout]     |     --- fields in this variant
[INFO] [stdout] 219 |         /// The model to run.
[INFO] [stdout] 220 |         model: String,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 223 |         args: Vec<Argument>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `value` are never read
[INFO] [stdout]    --> host/src/main.rs:229:5
[INFO] [stdout]     |
[INFO] [stdout] 228 | struct Argument {
[INFO] [stdout]     |        -------- fields in this struct
[INFO] [stdout] 229 |     key: String,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 230 |     value: String,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Argument` 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: associated function `metadata` is never used
[INFO] [stdout]    --> host/src/main.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn metadata(&self) -> Result<Metadata, Error> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main_` is never used
[INFO] [stdout]   --> host/src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn main_() -> Result<(), Error> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Model` is never constructed
[INFO] [stdout]    --> host/src/main.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 | struct Model {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `model_dir` and `cmd` are never read
[INFO] [stdout]    --> host/src/main.rs:208:5
[INFO] [stdout]     |
[INFO] [stdout] 205 | struct Args {
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 208 |     model_dir: PathBuf,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 209 |     #[structopt(subcommand)]
[INFO] [stdout] 210 |     cmd: Command,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Args` 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 `model` and `args` are never read
[INFO] [stdout]    --> host/src/main.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 218 |     Run {
[INFO] [stdout]     |     --- fields in this variant
[INFO] [stdout] 219 |         /// The model to run.
[INFO] [stdout] 220 |         model: String,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 223 |         args: Vec<Argument>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `value` are never read
[INFO] [stdout]    --> host/src/main.rs:229:5
[INFO] [stdout]     |
[INFO] [stdout] 228 | struct Argument {
[INFO] [stdout]     |        -------- fields in this struct
[INFO] [stdout] 229 |     key: String,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 230 |     value: String,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Argument` 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: associated function `metadata` is never used
[INFO] [stdout]    --> host/src/main.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn metadata(&self) -> Result<Metadata, Error> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "f885c985d2125b2bb8e1cc9b32d94f99fbf079a494511ee12f1bdd7a697a97dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f885c985d2125b2bb8e1cc9b32d94f99fbf079a494511ee12f1bdd7a697a97dc", kill_on_drop: false }`
[INFO] [stdout] f885c985d2125b2bb8e1cc9b32d94f99fbf079a494511ee12f1bdd7a697a97dc