[INFO] fetching crate curlyconf 0.1.0...
[INFO] checking curlyconf-0.1.0 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate curlyconf 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate curlyconf 0.1.0
[INFO] finished tweaking crates.io crate curlyconf 0.1.0
[INFO] tweaked toml for crates.io crate curlyconf 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate curlyconf 0.1.0 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate curlyconf 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f86522058fd4e74fe7a1d4510d5ccb621f86d879ec66d875171a99628db7632
[INFO] running `Command { std: "docker" "start" "-a" "2f86522058fd4e74fe7a1d4510d5ccb621f86d879ec66d875171a99628db7632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f86522058fd4e74fe7a1d4510d5ccb621f86d879ec66d875171a99628db7632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f86522058fd4e74fe7a1d4510d5ccb621f86d879ec66d875171a99628db7632", kill_on_drop: false }`
[INFO] [stdout] 2f86522058fd4e74fe7a1d4510d5ccb621f86d879ec66d875171a99628db7632
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb26b62ca9bd1f2d7f816a7eda4be320ff3fdcb5d7c3cf709026df68e66b5cce
[INFO] running `Command { std: "docker" "start" "-a" "cb26b62ca9bd1f2d7f816a7eda4be320ff3fdcb5d7c3cf709026df68e66b5cce", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking serde_test v1.0.118
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking curlyconf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stdout] warning: field `runtime` is never read
[INFO] [stdout]  --> examples/example3.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Config {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 5 |     runtime:    Runtime,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> examples/example3.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Threaded(Threaded),
[INFO] [stdout]    |     -------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Runtime` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     Threaded(Threaded),
[INFO] [stdout] 11 +     Threaded(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> examples/example3.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |     MultiSingle(MultiSingle),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Runtime` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     MultiSingle(MultiSingle),
[INFO] [stdout] 12 +     MultiSingle(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> examples/example3.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Threaded {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 17 |     #[serde(default)]
[INFO] [stdout] 18 |     name:   Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Threaded` 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 `name` is never read
[INFO] [stdout]   --> examples/example3.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct MultiSingle {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 23 |     #[serde(default)]
[INFO] [stdout] 24 |     name:   Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MultiSingle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `peer`, `logger`, `color`, and `either` are never read
[INFO] [stdout]  --> examples/example1.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Config {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 5 |     peer: Vec<Peer>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 6 |     logger: Logger,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 7 |     color: Vec<Color>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     #[serde(default)]
[INFO] [stdout] 9 |     either: Option<Either>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `hostname` are never read
[INFO] [stdout]   --> examples/example1.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Peer {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 14 |     #[serde(rename = "__label__")]
[INFO] [stdout] 15 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     hostname: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Peer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `target`, and `tuple` are never read
[INFO] [stdout]   --> examples/example1.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Logger {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 21 |     #[serde(rename = "__label__")]
[INFO] [stdout] 22 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 23 |     target: std::net::IpAddr,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 24 |     tuple: (u32, String),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Logger` 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 `0` is never read
[INFO] [stdout]   --> examples/example1.rs:38:10
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Peer(Peer),
[INFO] [stdout]    |     ---- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Either` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 38 -     Peer(Peer),
[INFO] [stdout] 38 +     Peer(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> examples/example1.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Logger(Logger),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Either` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 39 -     Logger(Logger),
[INFO] [stdout] 39 +     Logger(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `id` are never read
[INFO] [stdout]   --> examples/example1.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Users { name: String, id: u64 },
[INFO] [stdout]    |     -----   ^^^^          ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Either` 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 `0` is never read
[INFO] [stdout]    --> examples/newsfeeds.rs:111:28
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub struct WildMatList(Vec<String>);
[INFO] [stdout]     |                ----------- ^^^^^^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `WildMatList` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> examples/newsfeeds.rs:153:25
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub struct HashFeed(Vec<String>);
[INFO] [stdout]     |                -------- ^^^^^^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `HashFeed` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.27s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: serde_test v1.0.118
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 13`
[INFO] running `Command { std: "docker" "inspect" "cb26b62ca9bd1f2d7f816a7eda4be320ff3fdcb5d7c3cf709026df68e66b5cce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb26b62ca9bd1f2d7f816a7eda4be320ff3fdcb5d7c3cf709026df68e66b5cce", kill_on_drop: false }`
[INFO] [stdout] cb26b62ca9bd1f2d7f816a7eda4be320ff3fdcb5d7c3cf709026df68e66b5cce
