[INFO] fetching crate prometheus_folder_size_exporter 0.5.0...
[INFO] checking prometheus_folder_size_exporter-0.5.0 against master#0d56e340472882fa673d4b98d0802b9a799879d0 for pr-101692
[INFO] extracting crate prometheus_folder_size_exporter 0.5.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate prometheus_folder_size_exporter 0.5.0 on toolchain 0d56e340472882fa673d4b98d0802b9a799879d0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prometheus_folder_size_exporter 0.5.0
[INFO] finished tweaking crates.io crate prometheus_folder_size_exporter 0.5.0
[INFO] tweaked toml for crates.io crate prometheus_folder_size_exporter 0.5.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate prometheus_folder_size_exporter 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.72
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2938237b3836a2c248c4a408a9fb39f8cf0a03c540fcbde6814c3d495a10656
[INFO] running `Command { std: "docker" "start" "-a" "a2938237b3836a2c248c4a408a9fb39f8cf0a03c540fcbde6814c3d495a10656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2938237b3836a2c248c4a408a9fb39f8cf0a03c540fcbde6814c3d495a10656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2938237b3836a2c248c4a408a9fb39f8cf0a03c540fcbde6814c3d495a10656", kill_on_drop: false }`
[INFO] [stdout] a2938237b3836a2c248c4a408a9fb39f8cf0a03c540fcbde6814c3d495a10656
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10b29e66d8dd35c13cc4c43a3665e4f1886182766d1b37fb9d1e55be5e6d0e7f
[INFO] running `Command { std: "docker" "start" "-a" "10b29e66d8dd35c13cc4c43a3665e4f1886182766d1b37fb9d1e55be5e6d0e7f", kill_on_drop: false }`
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[INFO] [stdout] warning: field `folders_file` is never read
[INFO] [stdout]  --> src/options.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct Options {
[INFO] [stdout]   |                   ------- field in this struct
[INFO] [stdout] 7 |     pub folders_file: String,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]   = note: `Options` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `folders_file` is never read
[INFO] [stdout]  --> src/options.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct Options {
[INFO] [stdout]   |                   ------- field in this struct
[INFO] [stdout] 7 |     pub folders_file: String,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]   = note: `Options` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.23s
[INFO] running `Command { std: "docker" "inspect" "10b29e66d8dd35c13cc4c43a3665e4f1886182766d1b37fb9d1e55be5e6d0e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10b29e66d8dd35c13cc4c43a3665e4f1886182766d1b37fb9d1e55be5e6d0e7f", kill_on_drop: false }`
[INFO] [stdout] 10b29e66d8dd35c13cc4c43a3665e4f1886182766d1b37fb9d1e55be5e6d0e7f