[INFO] fetching crate shelly-exporter 0.1.3...
[INFO] checking shelly-exporter-0.1.3 against try#e117153a45c546e883c1f91d82611775fcaeffe0 for pr-146470
[INFO] extracting crate shelly-exporter 0.1.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate shelly-exporter 0.1.3
[INFO] finished tweaking crates.io crate shelly-exporter 0.1.3
[INFO] tweaked toml for crates.io crate shelly-exporter 0.1.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shelly-exporter 0.1.3 on toolchain e117153a45c546e883c1f91d82611775fcaeffe0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate shelly-exporter 0.1.3 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" "+e117153a45c546e883c1f91d82611775fcaeffe0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac694b8841c708d73ce2c5ceeec16844f23ffa7bdf04e1727986a1d2a68f10ad
[INFO] running `Command { std: "docker" "start" "-a" "ac694b8841c708d73ce2c5ceeec16844f23ffa7bdf04e1727986a1d2a68f10ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac694b8841c708d73ce2c5ceeec16844f23ffa7bdf04e1727986a1d2a68f10ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac694b8841c708d73ce2c5ceeec16844f23ffa7bdf04e1727986a1d2a68f10ad", kill_on_drop: false }`
[INFO] [stdout] ac694b8841c708d73ce2c5ceeec16844f23ffa7bdf04e1727986a1d2a68f10ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+e117153a45c546e883c1f91d82611775fcaeffe0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36c8a2ea311629958e9d0f57bfc0101a90c5222389ed9f1d05bb34aae1bd0bd1
[INFO] running `Command { std: "docker" "start" "-a" "36c8a2ea311629958e9d0f57bfc0101a90c5222389ed9f1d05bb34aae1bd0bd1", kill_on_drop: false }`
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[INFO] [stderr]     Checking shelly-exporter v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `RpcRequest` is never constructed
[INFO] [stdout]    --> src/shelly.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 175 | struct RpcRequest {
[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 `RpcResponse` is never constructed
[INFO] [stdout]    --> src/shelly.rs:183:8
[INFO] [stdout]     |
[INFO] [stdout] 183 | struct RpcResponse<T> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RpcError` is never constructed
[INFO] [stdout]    --> src/shelly.rs:190:8
[INFO] [stdout]     |
[INFO] [stdout] 190 | struct RpcError {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RpcRequest` is never constructed
[INFO] [stdout]    --> src/shelly.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 175 | struct RpcRequest {
[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 `RpcResponse` is never constructed
[INFO] [stdout]    --> src/shelly.rs:183:8
[INFO] [stdout]     |
[INFO] [stdout] 183 | struct RpcResponse<T> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RpcError` is never constructed
[INFO] [stdout]    --> src/shelly.rs:190:8
[INFO] [stdout]     |
[INFO] [stdout] 190 | struct RpcError {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.69s
[INFO] running `Command { std: "docker" "inspect" "36c8a2ea311629958e9d0f57bfc0101a90c5222389ed9f1d05bb34aae1bd0bd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36c8a2ea311629958e9d0f57bfc0101a90c5222389ed9f1d05bb34aae1bd0bd1", kill_on_drop: false }`
[INFO] [stdout] 36c8a2ea311629958e9d0f57bfc0101a90c5222389ed9f1d05bb34aae1bd0bd1