[INFO] fetching crate emv-qrcps-derive 0.1.2...
[INFO] checking emv-qrcps-derive-0.1.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate emv-qrcps-derive 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate emv-qrcps-derive 0.1.2
[INFO] finished tweaking crates.io crate emv-qrcps-derive 0.1.2
[INFO] tweaked toml for crates.io crate emv-qrcps-derive 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate emv-qrcps-derive 0.1.2 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]       Adding darling v0.13.4 (available: v0.20.11)
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (available: v3.3.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.104)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdb779ec7b09746e69eacffdddbb8c2b4c15917b6b208e2a5f6a4864ec30e286
[INFO] running `Command { std: "docker" "start" "-a" "fdb779ec7b09746e69eacffdddbb8c2b4c15917b6b208e2a5f6a4864ec30e286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdb779ec7b09746e69eacffdddbb8c2b4c15917b6b208e2a5f6a4864ec30e286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdb779ec7b09746e69eacffdddbb8c2b4c15917b6b208e2a5f6a4864ec30e286", kill_on_drop: false }`
[INFO] [stdout] fdb779ec7b09746e69eacffdddbb8c2b4c15917b6b208e2a5f6a4864ec30e286
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38142b4b7d965fe8183bb08cf30c14f3f7f696a687196166aa213ad4fa58887d
[INFO] running `Command { std: "docker" "start" "-a" "38142b4b7d965fe8183bb08cf30c14f3f7f696a687196166aa213ad4fa58887d", kill_on_drop: false }`
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking darling_core v0.13.4
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]     Checking darling v0.13.4
[INFO] [stderr]     Checking emv-qrcps-derive v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `args` is never read
[INFO] [stdout]   --> src/lib.rs:20:16
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct FieldKind {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub(crate) args: EncodeArgs,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `default` is never read
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct EncodeArgs {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     default: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EncodeArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `args` is never read
[INFO] [stdout]   --> src/lib.rs:20:16
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct FieldKind {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub(crate) args: EncodeArgs,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `default` is never read
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct EncodeArgs {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     default: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EncodeArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "38142b4b7d965fe8183bb08cf30c14f3f7f696a687196166aa213ad4fa58887d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38142b4b7d965fe8183bb08cf30c14f3f7f696a687196166aa213ad4fa58887d", kill_on_drop: false }`
[INFO] [stdout] 38142b4b7d965fe8183bb08cf30c14f3f7f696a687196166aa213ad4fa58887d