[INFO] fetching crate savory-elements-derive 0.6.0...
[INFO] checking savory-elements-derive-0.6.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate savory-elements-derive 0.6.0 into /workspace/builds/worker-4-tc1/source
[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] validating manifest of crates.io crate savory-elements-derive 0.6.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding darling v0.10.2 (available: v0.21.3)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 754af6f7a1ec865000e88a69eea0332c2023ecd0191df1e50a3a9d0257346bbf
[INFO] running `Command { std: "docker" "start" "-a" "754af6f7a1ec865000e88a69eea0332c2023ecd0191df1e50a3a9d0257346bbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "754af6f7a1ec865000e88a69eea0332c2023ecd0191df1e50a3a9d0257346bbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "754af6f7a1ec865000e88a69eea0332c2023ecd0191df1e50a3a9d0257346bbf", kill_on_drop: false }`
[INFO] [stdout] 754af6f7a1ec865000e88a69eea0332c2023ecd0191df1e50a3a9d0257346bbf
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd9bf406e3c941b5b11b936af70c09fc7b4ad1ea371bc9e36e124dbcae77fe99
[INFO] running `Command { std: "docker" "start" "-a" "cd9bf406e3c941b5b11b936af70c09fc7b4ad1ea371bc9e36e124dbcae77fe99", kill_on_drop: false }`
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]     Checking darling_core 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.95s
[INFO] running `Command { std: "docker" "inspect" "cd9bf406e3c941b5b11b936af70c09fc7b4ad1ea371bc9e36e124dbcae77fe99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd9bf406e3c941b5b11b936af70c09fc7b4ad1ea371bc9e36e124dbcae77fe99", kill_on_drop: false }`
[INFO] [stdout] cd9bf406e3c941b5b11b936af70c09fc7b4ad1ea371bc9e36e124dbcae77fe99