[INFO] fetching crate v1_hello_hello_donotuse 0.1.0...
[INFO] building v1_hello_hello_donotuse-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate v1_hello_hello_donotuse 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate v1_hello_hello_donotuse 0.1.0
[INFO] finished tweaking crates.io crate v1_hello_hello_donotuse 0.1.0
[INFO] tweaked toml for crates.io crate v1_hello_hello_donotuse 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate v1_hello_hello_donotuse 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate v1_hello_hello_donotuse 0.1.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 861fb29e7e086edafd72df65de5d7464551f7d40829e4c5ad98d9cdaca1b8d0b
[INFO] running `Command { std: "docker" "start" "-a" "861fb29e7e086edafd72df65de5d7464551f7d40829e4c5ad98d9cdaca1b8d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "861fb29e7e086edafd72df65de5d7464551f7d40829e4c5ad98d9cdaca1b8d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "861fb29e7e086edafd72df65de5d7464551f7d40829e4c5ad98d9cdaca1b8d0b", kill_on_drop: false }`
[INFO] [stdout] 861fb29e7e086edafd72df65de5d7464551f7d40829e4c5ad98d9cdaca1b8d0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bb4ee234d64876585ba2dfbe13da86be746de9a7a02f555b7c43a705b6291df
[INFO] running `Command { std: "docker" "start" "-a" "5bb4ee234d64876585ba2dfbe13da86be746de9a7a02f555b7c43a705b6291df", kill_on_drop: false }`
[INFO] [stderr]    Compiling v1_hello_hello_donotuse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `fave_color` is never read
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Person {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 6 |     fave_color: Color,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Person` 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 0.71s
[INFO] running `Command { std: "docker" "inspect" "5bb4ee234d64876585ba2dfbe13da86be746de9a7a02f555b7c43a705b6291df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bb4ee234d64876585ba2dfbe13da86be746de9a7a02f555b7c43a705b6291df", kill_on_drop: false }`
[INFO] [stdout] 5bb4ee234d64876585ba2dfbe13da86be746de9a7a02f555b7c43a705b6291df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49784e1e8f43cb7a87c3c0c54c52d90d920f691f094fb65054c2d78efd5cfb3a
[INFO] running `Command { std: "docker" "start" "-a" "49784e1e8f43cb7a87c3c0c54c52d90d920f691f094fb65054c2d78efd5cfb3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling v1_hello_hello_donotuse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `fave_color` is never read
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Person {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 6 |     fave_color: Color,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Person` 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 `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "49784e1e8f43cb7a87c3c0c54c52d90d920f691f094fb65054c2d78efd5cfb3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49784e1e8f43cb7a87c3c0c54c52d90d920f691f094fb65054c2d78efd5cfb3a", kill_on_drop: false }`
[INFO] [stdout] 49784e1e8f43cb7a87c3c0c54c52d90d920f691f094fb65054c2d78efd5cfb3a