[INFO] fetching crate savory-elements-derive 0.6.0...
[INFO] checking savory-elements-derive-0.6.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate savory-elements-derive 0.6.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate savory-elements-derive 0.6.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate savory-elements-derive 0.6.0
[INFO] finished tweaking crates.io crate savory-elements-derive 0.6.0
[INFO] tweaked toml for crates.io crate savory-elements-derive 0.6.0 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding darling v0.10.2 (latest: v0.20.10)
[INFO] [stderr]       Adding darling_core v0.10.2 (latest: v0.20.10)
[INFO] [stderr]       Adding darling_macro v0.10.2 (latest: v0.20.10)
[INFO] [stderr]       Adding strsim v0.9.3 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a7dec7cc580d4ef2a47c3541c6ef503d150f4b2b2825e8bba0d43cf8140cf56
[INFO] running `Command { std: "docker" "start" "-a" "9a7dec7cc580d4ef2a47c3541c6ef503d150f4b2b2825e8bba0d43cf8140cf56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a7dec7cc580d4ef2a47c3541c6ef503d150f4b2b2825e8bba0d43cf8140cf56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a7dec7cc580d4ef2a47c3541c6ef503d150f4b2b2825e8bba0d43cf8140cf56", kill_on_drop: false }`
[INFO] [stdout] 9a7dec7cc580d4ef2a47c3541c6ef503d150f4b2b2825e8bba0d43cf8140cf56
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b306f952ed45f55a9a594c27682f0567d4e2c9792ea17d22c28628db1094632
[INFO] running `Command { std: "docker" "start" "-a" "0b306f952ed45f55a9a594c27682f0567d4e2c9792ea17d22c28628db1094632", kill_on_drop: false }`
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking darling v0.10.2
[INFO] [stderr]     Checking savory-elements-derive v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `path_only` is never used
[INFO] [stdout]    --> src/element.rs:472:8
[INFO] [stdout]     |
[INFO] [stdout] 470 | pub trait TypeExt {
[INFO] [stdout]     |           ------- method in this trait
[INFO] [stdout] 471 |     fn get_option_ty(&self) -> Option<&syn::Type>;
[INFO] [stdout] 472 |     fn path_only(&self) -> Option<syn::punctuated::Punctuated<&syn::Ident, syn::Token![,]>>;
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `path_only` is never used
[INFO] [stdout]    --> src/element.rs:472:8
[INFO] [stdout]     |
[INFO] [stdout] 470 | pub trait TypeExt {
[INFO] [stdout]     |           ------- method in this trait
[INFO] [stdout] 471 |     fn get_option_ty(&self) -> Option<&syn::Type>;
[INFO] [stdout] 472 |     fn path_only(&self) -> Option<syn::punctuated::Punctuated<&syn::Ident, syn::Token![,]>>;
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.64s
[INFO] running `Command { std: "docker" "inspect" "0b306f952ed45f55a9a594c27682f0567d4e2c9792ea17d22c28628db1094632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b306f952ed45f55a9a594c27682f0567d4e2c9792ea17d22c28628db1094632", kill_on_drop: false }`
[INFO] [stdout] 0b306f952ed45f55a9a594c27682f0567d4e2c9792ea17d22c28628db1094632