[INFO] fetching crate rufi_gradient 2.0.12...
[INFO] checking rufi_gradient-2.0.12 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate rufi_gradient 2.0.12 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rufi_gradient 2.0.12 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rufi_gradient 2.0.12
[INFO] finished tweaking crates.io crate rufi_gradient 2.0.12
[INFO] tweaked toml for crates.io crate rufi_gradient 2.0.12 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rf-core v0.6.0
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 408ecadcc2b6d191bcfb3f0bfd6cc98d4a199ff52a7305fd74d2b3b2185f9dec
[INFO] running `Command { std: "docker" "start" "-a" "408ecadcc2b6d191bcfb3f0bfd6cc98d4a199ff52a7305fd74d2b3b2185f9dec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "408ecadcc2b6d191bcfb3f0bfd6cc98d4a199ff52a7305fd74d2b3b2185f9dec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "408ecadcc2b6d191bcfb3f0bfd6cc98d4a199ff52a7305fd74d2b3b2185f9dec", kill_on_drop: false }`
[INFO] [stdout] 408ecadcc2b6d191bcfb3f0bfd6cc98d4a199ff52a7305fd74d2b3b2185f9dec
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb4200e2636aab9bc2448365a7f08e74608d99d6fc7335d48170042b608c00bf
[INFO] running `Command { std: "docker" "start" "-a" "fb4200e2636aab9bc2448365a7f08e74608d99d6fc7335d48170042b608c00bf", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking rf-core v0.6.0
[INFO] [stderr]     Checking rufi_gradient v2.0.12 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `self_id` is never read
[INFO] [stdout]  --> tests/utils/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct DeviceState {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 9 |     pub self_id: i32,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DeviceState` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `devices` is never read
[INFO] [stdout]   --> tests/utils/mod.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Topology {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 23 |     pub devices: Vec<i32>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Topology` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.74s
[INFO] running `Command { std: "docker" "inspect" "fb4200e2636aab9bc2448365a7f08e74608d99d6fc7335d48170042b608c00bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb4200e2636aab9bc2448365a7f08e74608d99d6fc7335d48170042b608c00bf", kill_on_drop: false }`
[INFO] [stdout] fb4200e2636aab9bc2448365a7f08e74608d99d6fc7335d48170042b608c00bf