[INFO] cloning repository https://github.com/junhuang-ho/rust-syntax-basics-refresher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/junhuang-ho/rust-syntax-basics-refresher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjunhuang-ho%2Frust-syntax-basics-refresher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjunhuang-ho%2Frust-syntax-basics-refresher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10de361479ba4a95021ca34c0f8dbc50163862f0
[INFO] building junhuang-ho/rust-syntax-basics-refresher against try#23647e694de8d0904848ad068b2e0ec2dd098c37+target=wasm32-wasip1 for pr-149868
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjunhuang-ho%2Frust-syntax-basics-refresher" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/junhuang-ho/rust-syntax-basics-refresher
[INFO] finished tweaking git repo https://github.com/junhuang-ho/rust-syntax-basics-refresher
[INFO] tweaked toml for git repo https://github.com/junhuang-ho/rust-syntax-basics-refresher written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/junhuang-ho/rust-syntax-basics-refresher on toolchain 23647e694de8d0904848ad068b2e0ec2dd098c37
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23647e694de8d0904848ad068b2e0ec2dd098c37" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/junhuang-ho/rust-syntax-basics-refresher 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" "+23647e694de8d0904848ad068b2e0ec2dd098c37" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+23647e694de8d0904848ad068b2e0ec2dd098c37" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bca5c3ed5cd451c61d9e442573782180131f8996286727916db6ba61f6d63f9
[INFO] running `Command { std: "docker" "start" "-a" "7bca5c3ed5cd451c61d9e442573782180131f8996286727916db6ba61f6d63f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bca5c3ed5cd451c61d9e442573782180131f8996286727916db6ba61f6d63f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bca5c3ed5cd451c61d9e442573782180131f8996286727916db6ba61f6d63f9", kill_on_drop: false }`
[INFO] [stdout] 7bca5c3ed5cd451c61d9e442573782180131f8996286727916db6ba61f6d63f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+23647e694de8d0904848ad068b2e0ec2dd098c37" "build" "--frozen" "--message-format=json" "--target" "wasm32-wasip1", kill_on_drop: false }`
[INFO] [stdout] 0ec1fc45789b70cfbab6a5ba5dddeb3886b46c842accb6b834dd694e4ca16b77
[INFO] running `Command { std: "docker" "start" "-a" "0ec1fc45789b70cfbab6a5ba5dddeb3886b46c842accb6b834dd694e4ca16b77", kill_on_drop: false }`
[INFO] [stderr]    Compiling test1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rec`
[INFO] [stdout]    --> src/structs.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |     let rec = Rectangle {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_rec`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `length` and `height` are never read
[INFO] [stdout]   --> src/structs.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct Rectangle<T, U> {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 45 |     length: T,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 46 |     height: U,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `width` is never read
[INFO] [stdout]   --> src/structs.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct Circle {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 60 |     length: f32,
[INFO] [stdout] 61 |     width: f32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `dough` and `cheese` are never read
[INFO] [stdout]   --> src/restaurant/mod.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub struct Pizza {
[INFO] [stdout]    |                ----- fields in this struct
[INFO] [stdout] 13 |         pub dough: String,
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 14 |         pub cheese: String,
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "0ec1fc45789b70cfbab6a5ba5dddeb3886b46c842accb6b834dd694e4ca16b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec1fc45789b70cfbab6a5ba5dddeb3886b46c842accb6b834dd694e4ca16b77", kill_on_drop: false }`
[INFO] [stdout] 0ec1fc45789b70cfbab6a5ba5dddeb3886b46c842accb6b834dd694e4ca16b77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+23647e694de8d0904848ad068b2e0ec2dd098c37" "test" "--frozen" "--no-run" "--message-format=json" "--target" "wasm32-wasip1", kill_on_drop: false }`
[INFO] [stdout] 8190fc55bf52183d95dbb889c1a9c80961b71df03fb0802614e28f40afe50c76
[INFO] running `Command { std: "docker" "start" "-a" "8190fc55bf52183d95dbb889c1a9c80961b71df03fb0802614e28f40afe50c76", kill_on_drop: false }`
[INFO] [stderr]    Compiling test1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rec`
[INFO] [stdout]    --> src/structs.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |     let rec = Rectangle {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_rec`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `length` and `height` are never read
[INFO] [stdout]   --> src/structs.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct Rectangle<T, U> {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 45 |     length: T,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 46 |     height: U,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `width` is never read
[INFO] [stdout]   --> src/structs.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct Circle {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 60 |     length: f32,
[INFO] [stdout] 61 |     width: f32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `dough` and `cheese` are never read
[INFO] [stdout]   --> src/restaurant/mod.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub struct Pizza {
[INFO] [stdout]    |                ----- fields in this struct
[INFO] [stdout] 13 |         pub dough: String,
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 14 |         pub cheese: String,
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "8190fc55bf52183d95dbb889c1a9c80961b71df03fb0802614e28f40afe50c76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8190fc55bf52183d95dbb889c1a9c80961b71df03fb0802614e28f40afe50c76", kill_on_drop: false }`
[INFO] [stdout] 8190fc55bf52183d95dbb889c1a9c80961b71df03fb0802614e28f40afe50c76