[INFO] fetching crate research 0.1.22...
[INFO] building research-0.1.22 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate research 0.1.22 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate research 0.1.22
[INFO] finished tweaking crates.io crate research 0.1.22
[INFO] tweaked toml for crates.io crate research 0.1.22 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate research 0.1.22 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate research 0.1.22 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum_macros v0.22.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17fbff34a453612d1aa2e22a2c1bb0d9c7fafed42e0b1e33b98d6f4bbf2630cd
[INFO] running `Command { std: "docker" "start" "-a" "17fbff34a453612d1aa2e22a2c1bb0d9c7fafed42e0b1e33b98d6f4bbf2630cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17fbff34a453612d1aa2e22a2c1bb0d9c7fafed42e0b1e33b98d6f4bbf2630cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17fbff34a453612d1aa2e22a2c1bb0d9c7fafed42e0b1e33b98d6f4bbf2630cd", kill_on_drop: false }`
[INFO] [stdout] 17fbff34a453612d1aa2e22a2c1bb0d9c7fafed42e0b1e33b98d6f4bbf2630cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9650a97c9b06f0f071f9978f1f612ced59ebbb4c9abff58c9f5fadc33241101f
[INFO] running `Command { std: "docker" "start" "-a" "9650a97c9b06f0f071f9978f1f612ced59ebbb4c9abff58c9f5fadc33241101f", kill_on_drop: false }`
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[INFO] [stderr]    Compiling research v0.1.22 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ProviderLocal` is never constructed
[INFO] [stdout]  --> src/provider/local/mod.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ProviderLocal;
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[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 1m 48s
[INFO] running `Command { std: "docker" "inspect" "9650a97c9b06f0f071f9978f1f612ced59ebbb4c9abff58c9f5fadc33241101f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9650a97c9b06f0f071f9978f1f612ced59ebbb4c9abff58c9f5fadc33241101f", kill_on_drop: false }`
[INFO] [stdout] 9650a97c9b06f0f071f9978f1f612ced59ebbb4c9abff58c9f5fadc33241101f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36237bb9b5c465258ec12d0887c1808250f7d8dc931ae97fe7d3bfe4e08e22c8
[INFO] running `Command { std: "docker" "start" "-a" "36237bb9b5c465258ec12d0887c1808250f7d8dc931ae97fe7d3bfe4e08e22c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling research v0.1.22 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ProviderLocal` is never constructed
[INFO] [stdout]  --> src/provider/local/mod.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ProviderLocal;
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.46s
[INFO] running `Command { std: "docker" "inspect" "36237bb9b5c465258ec12d0887c1808250f7d8dc931ae97fe7d3bfe4e08e22c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36237bb9b5c465258ec12d0887c1808250f7d8dc931ae97fe7d3bfe4e08e22c8", kill_on_drop: false }`
[INFO] [stdout] 36237bb9b5c465258ec12d0887c1808250f7d8dc931ae97fe7d3bfe4e08e22c8
