[INFO] fetching crate try_fold_impl 0.2.1...
[INFO] checking try_fold_impl-0.2.1 against try#0edd13c68435d50367c79cef43ac2768d2ec4f3d for pr-129422
[INFO] extracting crate try_fold_impl 0.2.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate try_fold_impl 0.2.1 on toolchain 0edd13c68435d50367c79cef43ac2768d2ec4f3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate try_fold_impl 0.2.1
[INFO] finished tweaking crates.io crate try_fold_impl 0.2.1
[INFO] tweaked toml for crates.io crate try_fold_impl 0.2.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 181c68a9d82b8f1ac137f2ff2c38f6ee742dd234d2934942137c8c7a4fb9048b
[INFO] running `Command { std: "docker" "start" "-a" "181c68a9d82b8f1ac137f2ff2c38f6ee742dd234d2934942137c8c7a4fb9048b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "181c68a9d82b8f1ac137f2ff2c38f6ee742dd234d2934942137c8c7a4fb9048b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "181c68a9d82b8f1ac137f2ff2c38f6ee742dd234d2934942137c8c7a4fb9048b", kill_on_drop: false }`
[INFO] [stdout] 181c68a9d82b8f1ac137f2ff2c38f6ee742dd234d2934942137c8c7a4fb9048b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c38b2f34fea810e7eb6402b0314cb65f0741f3e83aa4ef9564f49ed0ce2a8038
[INFO] running `Command { std: "docker" "start" "-a" "c38b2f34fea810e7eb6402b0314cb65f0741f3e83aa4ef9564f49ed0ce2a8038", kill_on_drop: false }`
[INFO] [stderr]     Checking try_fold_impl v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Test2` is never constructed
[INFO] [stdout]   --> src/lib.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     struct Test2;
[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` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "c38b2f34fea810e7eb6402b0314cb65f0741f3e83aa4ef9564f49ed0ce2a8038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c38b2f34fea810e7eb6402b0314cb65f0741f3e83aa4ef9564f49ed0ce2a8038", kill_on_drop: false }`
[INFO] [stdout] c38b2f34fea810e7eb6402b0314cb65f0741f3e83aa4ef9564f49ed0ce2a8038