[INFO] fetching crate xpr 0.1.0...
[INFO] checking xpr-0.1.0 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate xpr 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate xpr 0.1.0
[INFO] finished tweaking crates.io crate xpr 0.1.0
[INFO] tweaked toml for crates.io crate xpr 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xpr 0.1.0 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xpr 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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32850f91b530fa40a502fe40e33dd9a8a228bec1173bef714c585b7de9a43a66
[INFO] running `Command { std: "docker" "start" "-a" "32850f91b530fa40a502fe40e33dd9a8a228bec1173bef714c585b7de9a43a66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32850f91b530fa40a502fe40e33dd9a8a228bec1173bef714c585b7de9a43a66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32850f91b530fa40a502fe40e33dd9a8a228bec1173bef714c585b7de9a43a66", kill_on_drop: false }`
[INFO] [stdout] 32850f91b530fa40a502fe40e33dd9a8a228bec1173bef714c585b7de9a43a66
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34a154645afb888fa75e4a1c3f38bf715d2904ab09a6c873306bc0a2dcfc6a20
[INFO] running `Command { std: "docker" "start" "-a" "34a154645afb888fa75e4a1c3f38bf715d2904ab09a6c873306bc0a2dcfc6a20", kill_on_drop: false }`
[INFO] [stderr]     Checking xpr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `FortytwoifyI32` is never constructed
[INFO] [stdout]   --> src/foldable.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     struct FortytwoifyI32;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Num` is never constructed
[INFO] [stdout]    --> src/lib.rs:452:12
[INFO] [stdout]     |
[INFO] [stdout] 452 |     struct Num(i32);
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "34a154645afb888fa75e4a1c3f38bf715d2904ab09a6c873306bc0a2dcfc6a20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34a154645afb888fa75e4a1c3f38bf715d2904ab09a6c873306bc0a2dcfc6a20", kill_on_drop: false }`
[INFO] [stdout] 34a154645afb888fa75e4a1c3f38bf715d2904ab09a6c873306bc0a2dcfc6a20