[INFO] fetching crate ptah_derive 0.1.0...
[INFO] checking ptah_derive-0.1.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate ptah_derive 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ptah_derive 0.1.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5679f9d9dfaf3de24fc6f95d067616b242e1550a99c7819f91ece816981a5051
[INFO] running `Command { std: "docker" "start" "-a" "5679f9d9dfaf3de24fc6f95d067616b242e1550a99c7819f91ece816981a5051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5679f9d9dfaf3de24fc6f95d067616b242e1550a99c7819f91ece816981a5051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5679f9d9dfaf3de24fc6f95d067616b242e1550a99c7819f91ece816981a5051", kill_on_drop: false }`
[INFO] [stdout] 5679f9d9dfaf3de24fc6f95d067616b242e1550a99c7819f91ece816981a5051
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a58a54e566916f9ecbaf6aace6016bb68d400a69e0f920447536c1eedac2c2e0
[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" "a58a54e566916f9ecbaf6aace6016bb68d400a69e0f920447536c1eedac2c2e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking syn v1.0.72
[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: 2 warnings emitted
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.57s
[INFO] running `Command { std: "docker" "inspect" "a58a54e566916f9ecbaf6aace6016bb68d400a69e0f920447536c1eedac2c2e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a58a54e566916f9ecbaf6aace6016bb68d400a69e0f920447536c1eedac2c2e0", kill_on_drop: false }`
[INFO] [stdout] a58a54e566916f9ecbaf6aace6016bb68d400a69e0f920447536c1eedac2c2e0