[INFO] fetching crate variant_enum 0.1.0...
[INFO] building variant_enum-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate variant_enum 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate variant_enum 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate variant_enum 0.1.0
[INFO] tweaked toml for crates.io crate variant_enum 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate variant_enum 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate variant_enum 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40d9607ad534707424c0d76e5d0c5ef559230e55a8d3d57c9d5259f802d1597f
[INFO] running `Command { std: "docker" "start" "-a" "40d9607ad534707424c0d76e5d0c5ef559230e55a8d3d57c9d5259f802d1597f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40d9607ad534707424c0d76e5d0c5ef559230e55a8d3d57c9d5259f802d1597f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40d9607ad534707424c0d76e5d0c5ef559230e55a8d3d57c9d5259f802d1597f", kill_on_drop: false }`
[INFO] [stdout] 40d9607ad534707424c0d76e5d0c5ef559230e55a8d3d57c9d5259f802d1597f
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fa26a3e5c195549a399615ed3bb4a334cd9df66975a77c3fb12501cc0e2f2d2
[INFO] running `Command { std: "docker" "start" "-a" "8fa26a3e5c195549a399615ed3bb4a334cd9df66975a77c3fb12501cc0e2f2d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.68
[INFO] [stderr]    Compiling variant_enum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `parse_quote_spanned`
[INFO] [stdout]  --> src/lib.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | use syn::{parse_macro_input, parse_quote, parse_quote_spanned, Expr, Field, FieldMutability, Fields, FieldsUnnamed, ItemEnum, Visibility};
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `Command { std: "docker" "inspect" "8fa26a3e5c195549a399615ed3bb4a334cd9df66975a77c3fb12501cc0e2f2d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fa26a3e5c195549a399615ed3bb4a334cd9df66975a77c3fb12501cc0e2f2d2", kill_on_drop: false }`
[INFO] [stdout] 8fa26a3e5c195549a399615ed3bb4a334cd9df66975a77c3fb12501cc0e2f2d2
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29eb4cbdfc19b6ec77c2deaf0535a5929582a2f6cc041e83378343bee2983a00
[INFO] running `Command { std: "docker" "start" "-a" "29eb4cbdfc19b6ec77c2deaf0535a5929582a2f6cc041e83378343bee2983a00", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.68
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]    Compiling variant_enum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `parse_quote_spanned`
[INFO] [stdout]  --> src/lib.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | use syn::{parse_macro_input, parse_quote, parse_quote_spanned, Expr, Field, FieldMutability, Fields, FieldsUnnamed, ItemEnum, Visibility};
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parse_quote_spanned`
[INFO] [stdout]  --> src/lib.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | use syn::{parse_macro_input, parse_quote, parse_quote_spanned, Expr, Field, FieldMutability, Fields, FieldsUnnamed, ItemEnum, Visibility};
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `b`, `c`, and `d` are never read
[INFO] [stdout]   --> examples/readme.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout]  7 |     A {
[INFO] [stdout]    |     - fields in this struct
[INFO] [stdout]  8 |         pub a: u32,
[INFO] [stdout]  9 |         b: f32,
[INFO] [stdout]    |         ^
[INFO] [stdout] 10 |         c: usize,
[INFO] [stdout]    |         ^
[INFO] [stdout] 11 |         d: String,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `A` 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 `foo` is never read
[INFO] [stdout]   --> examples/readme.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     B {
[INFO] [stdout]    |     - field in this struct
[INFO] [stdout] 14 |         foo: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `B` 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 `bar` is never read
[INFO] [stdout]   --> examples/readme.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     C {
[INFO] [stdout]    |     - field in this struct
[INFO] [stdout] 17 |         bar: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `C` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.79s
[INFO] running `Command { std: "docker" "inspect" "29eb4cbdfc19b6ec77c2deaf0535a5929582a2f6cc041e83378343bee2983a00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29eb4cbdfc19b6ec77c2deaf0535a5929582a2f6cc041e83378343bee2983a00", kill_on_drop: false }`
[INFO] [stdout] 29eb4cbdfc19b6ec77c2deaf0535a5929582a2f6cc041e83378343bee2983a00
