[INFO] fetching crate silos 0.1.2...
[INFO] building silos-0.1.2 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate silos 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate silos 0.1.2
[INFO] finished tweaking crates.io crate silos 0.1.2
[INFO] tweaked toml for crates.io crate silos 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate silos 0.1.2 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 silos 0.1.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 53f3bd9f63f62c0c1698f3147b004fead6b1c57f7212fee8c6e6edacfe023cfa
[INFO] running `Command { std: "docker" "start" "-a" "53f3bd9f63f62c0c1698f3147b004fead6b1c57f7212fee8c6e6edacfe023cfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53f3bd9f63f62c0c1698f3147b004fead6b1c57f7212fee8c6e6edacfe023cfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53f3bd9f63f62c0c1698f3147b004fead6b1c57f7212fee8c6e6edacfe023cfa", kill_on_drop: false }`
[INFO] [stdout] 53f3bd9f63f62c0c1698f3147b004fead6b1c57f7212fee8c6e6edacfe023cfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ec370da5a31dceaaca237456163ae58f49ae2854f3094ca4bd0f3df7ccc3404a
[INFO] running `Command { std: "docker" "start" "-a" "ec370da5a31dceaaca237456163ae58f49ae2854f3094ca4bd0f3df7ccc3404a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.164
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling rustix v0.38.40
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling hashbrown v0.15.1
[INFO] [stderr]    Compiling fastrand v2.2.0
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling indexmap v2.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling tempfile v3.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling silos v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]   --> src/main.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Data;
[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 22.11s
[INFO] running `Command { std: "docker" "inspect" "ec370da5a31dceaaca237456163ae58f49ae2854f3094ca4bd0f3df7ccc3404a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec370da5a31dceaaca237456163ae58f49ae2854f3094ca4bd0f3df7ccc3404a", kill_on_drop: false }`
[INFO] [stdout] ec370da5a31dceaaca237456163ae58f49ae2854f3094ca4bd0f3df7ccc3404a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 607de70c395f7063e357db0c4f0512777c51b247e2dbc2b62776176613d79898
[INFO] running `Command { std: "docker" "start" "-a" "607de70c395f7063e357db0c4f0512777c51b247e2dbc2b62776176613d79898", kill_on_drop: false }`
[INFO] [stderr]    Compiling silos v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]   --> src/main.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Data;
[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 0.94s
[INFO] running `Command { std: "docker" "inspect" "607de70c395f7063e357db0c4f0512777c51b247e2dbc2b62776176613d79898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "607de70c395f7063e357db0c4f0512777c51b247e2dbc2b62776176613d79898", kill_on_drop: false }`
[INFO] [stdout] 607de70c395f7063e357db0c4f0512777c51b247e2dbc2b62776176613d79898