[INFO] cloning repository https://github.com/User-Reid/rust_project_structs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/User-Reid/rust_project_structs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUser-Reid%2Frust_project_structs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUser-Reid%2Frust_project_structs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04b00f81069bea84ef01c4ec20679e777eb2bd55
[INFO] checking User-Reid/rust_project_structs against try#e19b5cc0f024358aaaecf2776a5291fa5a95b623 for pr-147185-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUser-Reid%2Frust_project_structs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/User-Reid/rust_project_structs
[INFO] finished tweaking git repo https://github.com/User-Reid/rust_project_structs
[INFO] tweaked toml for git repo https://github.com/User-Reid/rust_project_structs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/User-Reid/rust_project_structs on toolchain e19b5cc0f024358aaaecf2776a5291fa5a95b623
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e19b5cc0f024358aaaecf2776a5291fa5a95b623" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/User-Reid/rust_project_structs 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" "+e19b5cc0f024358aaaecf2776a5291fa5a95b623" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+e19b5cc0f024358aaaecf2776a5291fa5a95b623" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1937290482a7c319b16ea86688278a7bb99274899b190c7727bb01224776ed27
[INFO] running `Command { std: "docker" "start" "-a" "1937290482a7c319b16ea86688278a7bb99274899b190c7727bb01224776ed27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1937290482a7c319b16ea86688278a7bb99274899b190c7727bb01224776ed27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1937290482a7c319b16ea86688278a7bb99274899b190c7727bb01224776ed27", kill_on_drop: false }`
[INFO] [stdout] 1937290482a7c319b16ea86688278a7bb99274899b190c7727bb01224776ed27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+e19b5cc0f024358aaaecf2776a5291fa5a95b623" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 857718c0472b17f1e5b843e146df6991f8e12df52ef73a72e06b589710c5e1e8
[INFO] running `Command { std: "docker" "start" "-a" "857718c0472b17f1e5b843e146df6991f8e12df52ef73a72e06b589710c5e1e8", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_project_structs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `passengers` is never read
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Flight {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 6 |     passengers: u32,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Flight` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `passengers` is never read
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Flight {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 6 |     passengers: u32,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Flight` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "857718c0472b17f1e5b843e146df6991f8e12df52ef73a72e06b589710c5e1e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "857718c0472b17f1e5b843e146df6991f8e12df52ef73a72e06b589710c5e1e8", kill_on_drop: false }`
[INFO] [stdout] 857718c0472b17f1e5b843e146df6991f8e12df52ef73a72e06b589710c5e1e8