[INFO] fetching crate ptah_derive 0.1.0...
[INFO] checking ptah_derive-0.1.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate ptah_derive 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ptah_derive 0.1.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ptah_derive 0.1.0
[INFO] finished tweaking crates.io crate ptah_derive 0.1.0
[INFO] tweaked toml for crates.io crate ptah_derive 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9187e4d8157f03433de867a3f10cf09ba471b1b37ffa39c7aa571dd59b538f60
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9187e4d8157f03433de867a3f10cf09ba471b1b37ffa39c7aa571dd59b538f60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9187e4d8157f03433de867a3f10cf09ba471b1b37ffa39c7aa571dd59b538f60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9187e4d8157f03433de867a3f10cf09ba471b1b37ffa39c7aa571dd59b538f60", kill_on_drop: false }`
[INFO] [stdout] 9187e4d8157f03433de867a3f10cf09ba471b1b37ffa39c7aa571dd59b538f60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91a8a7e9d40cc36b0d9fb3e656840d342102c3cdacfc1154b52448420e3913cd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "91a8a7e9d40cc36b0d9fb3e656840d342102c3cdacfc1154b52448420e3913cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking quote v1.0.8
[INFO] [stderr]     Checking syn v1.0.56
[INFO] [stderr]     Checking ptah_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `enum_name`
[INFO] [stdout]    --> src/de.rs:118:22
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn generate_for_enum(enum_name: &Ident, data: &DataEnum) -> TokenStream {
[INFO] [stdout]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enum_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `union_data`
[INFO] [stdout]   --> src/ser.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 |         Data::Union(union_data) => todo!(),
[INFO] [stdout]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_union_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enum_name`
[INFO] [stdout]    --> src/de.rs:118:22
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn generate_for_enum(enum_name: &Ident, data: &DataEnum) -> TokenStream {
[INFO] [stdout]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_enum_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `union_data`
[INFO] [stdout]   --> src/ser.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 |         Data::Union(union_data) => todo!(),
[INFO] [stdout]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_union_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.28s
[INFO] running `Command { std: "docker" "inspect" "91a8a7e9d40cc36b0d9fb3e656840d342102c3cdacfc1154b52448420e3913cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91a8a7e9d40cc36b0d9fb3e656840d342102c3cdacfc1154b52448420e3913cd", kill_on_drop: false }`
[INFO] [stdout] 91a8a7e9d40cc36b0d9fb3e656840d342102c3cdacfc1154b52448420e3913cd