[INFO] cloning repository https://github.com/TrolledWoods/field_ref
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TrolledWoods/field_ref" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrolledWoods%2Ffield_ref", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrolledWoods%2Ffield_ref'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6300bae5ef5db86bfc089575331033420e9a523
[INFO] checking TrolledWoods/field_ref against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrolledWoods%2Ffield_ref" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TrolledWoods/field_ref on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TrolledWoods/field_ref
[INFO] finished tweaking git repo https://github.com/TrolledWoods/field_ref
[INFO] tweaked toml for git repo https://github.com/TrolledWoods/field_ref written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/TrolledWoods/field_ref already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73b5752676f4ab42985c78f15bbeab65072f61552ebd5df476204b8b7142f447
[INFO] running `Command { std: "docker" "start" "-a" "73b5752676f4ab42985c78f15bbeab65072f61552ebd5df476204b8b7142f447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73b5752676f4ab42985c78f15bbeab65072f61552ebd5df476204b8b7142f447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73b5752676f4ab42985c78f15bbeab65072f61552ebd5df476204b8b7142f447", kill_on_drop: false }`
[INFO] [stdout] 73b5752676f4ab42985c78f15bbeab65072f61552ebd5df476204b8b7142f447
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1796bffbed5b5a5d181d1395787f74becedc57e9dff1ce36fe305ba84e1394b5
[INFO] running `Command { std: "docker" "start" "-a" "1796bffbed5b5a5d181d1395787f74becedc57e9dff1ce36fe305ba84e1394b5", kill_on_drop: false }`
[INFO] [stderr]     Checking field_ref v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `d`
[INFO] [stdout]    --> src/lib.rs:251:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |         d: u64,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "1796bffbed5b5a5d181d1395787f74becedc57e9dff1ce36fe305ba84e1394b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1796bffbed5b5a5d181d1395787f74becedc57e9dff1ce36fe305ba84e1394b5", kill_on_drop: false }`
[INFO] [stdout] 1796bffbed5b5a5d181d1395787f74becedc57e9dff1ce36fe305ba84e1394b5