[INFO] fetching crate serde-implicit 0.3.1...
[INFO] checking serde-implicit-0.3.1 against 28b6e691688c15cef4c60d9044274e7b84397870 for pr-162986
[INFO] extracting crate serde-implicit 0.3.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate serde-implicit 0.3.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serde-implicit 0.3.1
[INFO] tweaked toml for crates.io crate serde-implicit 0.3.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-implicit 0.3.1 on toolchain 28b6e691688c15cef4c60d9044274e7b84397870
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+28b6e691688c15cef4c60d9044274e7b84397870" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde-implicit 0.3.1 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" "+28b6e691688c15cef4c60d9044274e7b84397870" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1dd57217c8f638bd7f676377c13cc17cab99f8ff5b6f7a616c6e34f2ff9b7dfa
[INFO] running `Command { std: "docker" "start" "1dd57217c8f638bd7f676377c13cc17cab99f8ff5b6f7a616c6e34f2ff9b7dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dd57217c8f638bd7f676377c13cc17cab99f8ff5b6f7a616c6e34f2ff9b7dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1dd57217c8f638bd7f676377c13cc17cab99f8ff5b6f7a616c6e34f2ff9b7dfa" "/opt/rustwide/cargo-home/bin/cargo" "+28b6e691688c15cef4c60d9044274e7b84397870" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dd57217c8f638bd7f676377c13cc17cab99f8ff5b6f7a616c6e34f2ff9b7dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1dd57217c8f638bd7f676377c13cc17cab99f8ff5b6f7a616c6e34f2ff9b7dfa" "/opt/rustwide/cargo-home/bin/cargo" "+28b6e691688c15cef4c60d9044274e7b84397870" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling zerocopy v0.8.47
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]     Checking linux-raw-sys v0.12.1
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[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]     Checking once_cell v1.21.4
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[INFO] [stderr]    Compiling target-triple v1.0.0
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[INFO] [stderr]     Checking toml_writer v1.0.7+spec-1.1.0
[INFO] [stderr]     Checking unarray v0.1.4
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[INFO] [stderr]    Compiling num-traits v0.2.19
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[INFO] [stderr]     Checking toml v1.0.7+spec-1.1.0
[INFO] [stderr]     Checking arbitrary-json v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling proptest-derive v0.5.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking proptest v1.10.0
[INFO] [stderr]    Compiling serde-implicit-proc v0.3.1
[INFO] [stderr]     Checking trybuild v1.0.116
[INFO] [stderr]     Checking proptest-arbitrary-interop v0.1.0
[INFO] [stderr]     Checking serde-implicit v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> tests/dummy.rs:222:38
[INFO] [stdout]     |
[INFO] [stdout] 222 |         Case1(#[serde_implicit(tag)] String, u32),
[INFO] [stdout]     |         ----- fields in this variant ^^^^^^  ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TupleEnum` 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] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 222 -         Case1(#[serde_implicit(tag)] String, u32),
[INFO] [stdout] 222 +         Case1(#[serde_implicit(tag)] (), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> tests/dummy.rs:223:15
[INFO] [stdout]     |
[INFO] [stdout] 223 |         Case2(bool, #[serde_implicit(tag)] u32),
[INFO] [stdout]     |         ----- ^^^^                         ^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TupleEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 223 -         Case2(bool, #[serde_implicit(tag)] u32),
[INFO] [stdout] 223 +         Case2((), #[serde_implicit(tag)] ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tag` is never read
[INFO] [stdout]    --> tests/dummy.rs:393:13
[INFO] [stdout]     |
[INFO] [stdout] 391 |         Variant {
[INFO] [stdout]     |         ------- field in this variant
[INFO] [stdout] 392 |             #[serde_implicit(tag)]
[INFO] [stdout] 393 |             tag: String,
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `WithMap` 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]    --> tests/dummy.rs:530:17
[INFO] [stdout]     |
[INFO] [stdout] 530 |         Literal(u64),
[INFO] [stdout]     |         ------- ^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` 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] 530 -         Literal(u64),
[INFO] [stdout] 530 +         Literal(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> tests/dummy.rs:531:19
[INFO] [stdout]     |
[INFO] [stdout] 531 |         BigOp(Op, Vec<Message>),
[INFO] [stdout]     |         -----     ^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` 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] 531 -         BigOp(Op, Vec<Message>),
[INFO] [stdout] 531 +         BigOp(Op, ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RecursiveEnum` is never used
[INFO] [stdout]   --> tests/proptest.rs:67:6
[INFO] [stdout]    |
[INFO] [stdout] 67 | enum RecursiveEnum {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EmptyEnum` is never used
[INFO] [stdout]   --> tests/proptest.rs:83:10
[INFO] [stdout]    |
[INFO] [stdout] 83 |     enum EmptyEnum {}
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SingleVariant` is never used
[INFO] [stdout]   --> tests/proptest.rs:86:10
[INFO] [stdout]    |
[INFO] [stdout] 86 |     enum SingleVariant {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.99s
[INFO] running `Command { std: "docker" "inspect" "1dd57217c8f638bd7f676377c13cc17cab99f8ff5b6f7a616c6e34f2ff9b7dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dd57217c8f638bd7f676377c13cc17cab99f8ff5b6f7a616c6e34f2ff9b7dfa", kill_on_drop: false }`
[INFO] [stdout] 1dd57217c8f638bd7f676377c13cc17cab99f8ff5b6f7a616c6e34f2ff9b7dfa
