[INFO] cloning repository https://github.com/KushalMeghani1644/rust-enums
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KushalMeghani1644/rust-enums" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKushalMeghani1644%2Frust-enums", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKushalMeghani1644%2Frust-enums'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8db3dd451dd8d443af2f4bfe374c88c20d95885
[INFO] checking KushalMeghani1644/rust-enums against try#804fff1ae95da9d03bd44eee27f258020a575dab for pr-146013
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKushalMeghani1644%2Frust-enums" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KushalMeghani1644/rust-enums
[INFO] finished tweaking git repo https://github.com/KushalMeghani1644/rust-enums
[INFO] tweaked toml for git repo https://github.com/KushalMeghani1644/rust-enums written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KushalMeghani1644/rust-enums on toolchain 804fff1ae95da9d03bd44eee27f258020a575dab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KushalMeghani1644/rust-enums 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" "+804fff1ae95da9d03bd44eee27f258020a575dab" "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-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40d7d7abc91f0d12a427bb724bb958c858f1198287f40e59ca5f2c8faf9b8527
[INFO] running `Command { std: "docker" "start" "-a" "40d7d7abc91f0d12a427bb724bb958c858f1198287f40e59ca5f2c8faf9b8527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40d7d7abc91f0d12a427bb724bb958c858f1198287f40e59ca5f2c8faf9b8527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40d7d7abc91f0d12a427bb724bb958c858f1198287f40e59ca5f2c8faf9b8527", kill_on_drop: false }`
[INFO] [stdout] 40d7d7abc91f0d12a427bb724bb958c858f1198287f40e59ca5f2c8faf9b8527
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75475db1e69f4c9ad42a09fafc1a01238d136b50424ed117b713cbe879ca6da0
[INFO] running `Command { std: "docker" "start" "-a" "75475db1e69f4c9ad42a09fafc1a01238d136b50424ed117b713cbe879ca6da0", kill_on_drop: false }`
[INFO] [stderr]     Checking program1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `address` is never read
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct IpAddress {
[INFO] [stdout]   |        --------- field in this struct
[INFO] [stdout] 8 |     kind: IpAddr,
[INFO] [stdout] 9 |     address: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `IpAddress` 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 `address` is never read
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct IpAddress {
[INFO] [stdout]   |        --------- field in this struct
[INFO] [stdout] 8 |     kind: IpAddr,
[INFO] [stdout] 9 |     address: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `IpAddress` 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 0.07s
[INFO] running `Command { std: "docker" "inspect" "75475db1e69f4c9ad42a09fafc1a01238d136b50424ed117b713cbe879ca6da0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75475db1e69f4c9ad42a09fafc1a01238d136b50424ed117b713cbe879ca6da0", kill_on_drop: false }`
[INFO] [stdout] 75475db1e69f4c9ad42a09fafc1a01238d136b50424ed117b713cbe879ca6da0