[INFO] fetching crate smallbox 0.8.2...
[INFO] checking smallbox-0.8.2 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate smallbox 0.8.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate smallbox 0.8.2 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smallbox 0.8.2
[INFO] finished tweaking crates.io crate smallbox 0.8.2
[INFO] tweaked toml for crates.io crate smallbox 0.8.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ba3ffd67c49252040eebfd344c2ccdb9ee97fa350ac6e9221bb2132e4ea7956
[INFO] running `Command { std: "docker" "start" "-a" "1ba3ffd67c49252040eebfd344c2ccdb9ee97fa350ac6e9221bb2132e4ea7956", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ba3ffd67c49252040eebfd344c2ccdb9ee97fa350ac6e9221bb2132e4ea7956", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ba3ffd67c49252040eebfd344c2ccdb9ee97fa350ac6e9221bb2132e4ea7956", kill_on_drop: false }`
[INFO] [stdout] 1ba3ffd67c49252040eebfd344c2ccdb9ee97fa350ac6e9221bb2132e4ea7956
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d78718c026e75de4a8f740030370d90f6e8c9a07578365661a653b8a3509ad7e
[INFO] running `Command { std: "docker" "start" "-a" "d78718c026e75de4a8f740030370d90f6e8c9a07578365661a653b8a3509ad7e", kill_on_drop: false }`
[INFO] [stderr]     Checking smallbox v0.8.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/smallbox.rs:538:43
[INFO] [stdout]     |
[INFO] [stdout] 538 |         struct Struct<'a>(&'a Cell<bool>, u8);
[INFO] [stdout]     |                ------                     ^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/smallbox.rs:562:23
[INFO] [stdout]     |
[INFO] [stdout] 562 |         struct NoDrop(S1);
[INFO] [stdout]     |                ------ ^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "d78718c026e75de4a8f740030370d90f6e8c9a07578365661a653b8a3509ad7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d78718c026e75de4a8f740030370d90f6e8c9a07578365661a653b8a3509ad7e", kill_on_drop: false }`
[INFO] [stdout] d78718c026e75de4a8f740030370d90f6e8c9a07578365661a653b8a3509ad7e