[INFO] cloning repository https://github.com/ycysdf/variant_enum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ycysdf/variant_enum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fycysdf%2Fvariant_enum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fycysdf%2Fvariant_enum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 188243cd07c7c949e8d6a4b2ba32697967fe274a
[INFO] testing ycysdf/variant_enum against try#a7ce54db9b096bd1098d07c645b489195a667c9f for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fycysdf%2Fvariant_enum" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ycysdf/variant_enum on toolchain a7ce54db9b096bd1098d07c645b489195a667c9f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ycysdf/variant_enum
[INFO] finished tweaking git repo https://github.com/ycysdf/variant_enum
[INFO] tweaked toml for git repo https://github.com/ycysdf/variant_enum written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ycysdf/variant_enum 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" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9298e886c36126fc93bcf572463017b205fad11f93b064b2251b64de37b55aa0
[INFO] running `Command { std: "docker" "start" "-a" "9298e886c36126fc93bcf572463017b205fad11f93b064b2251b64de37b55aa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9298e886c36126fc93bcf572463017b205fad11f93b064b2251b64de37b55aa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9298e886c36126fc93bcf572463017b205fad11f93b064b2251b64de37b55aa0", kill_on_drop: false }`
[INFO] [stdout] 9298e886c36126fc93bcf572463017b205fad11f93b064b2251b64de37b55aa0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7857edd45e6380890d30da2928518c6d70176368ff79827c1bceb1813d12fd2
[INFO] running `Command { std: "docker" "start" "-a" "d7857edd45e6380890d30da2928518c6d70176368ff79827c1bceb1813d12fd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling quote v1.0.36
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "d7857edd45e6380890d30da2928518c6d70176368ff79827c1bceb1813d12fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7857edd45e6380890d30da2928518c6d70176368ff79827c1bceb1813d12fd2", kill_on_drop: false }`
[INFO] [stdout] d7857edd45e6380890d30da2928518c6d70176368ff79827c1bceb1813d12fd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bea0c4948152b3735bf72f99008826040670e0f19f1e1e236ae2b93a45a049a5
[INFO] running `Command { std: "docker" "start" "-a" "bea0c4948152b3735bf72f99008826040670e0f19f1e1e236ae2b93a45a049a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling convert_case v0.4.0
[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)]` 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)]` 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)]` 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 3.96s
[INFO] running `Command { std: "docker" "inspect" "bea0c4948152b3735bf72f99008826040670e0f19f1e1e236ae2b93a45a049a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bea0c4948152b3735bf72f99008826040670e0f19f1e1e236ae2b93a45a049a5", kill_on_drop: false }`
[INFO] [stdout] bea0c4948152b3735bf72f99008826040670e0f19f1e1e236ae2b93a45a049a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0a49b38c28e0df29ee39b8686268f58c8cb43dd423c7467e9711de10157325d6
[INFO] running `Command { std: "docker" "start" "-a" "0a49b38c28e0df29ee39b8686268f58c8cb43dd423c7467e9711de10157325d6", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `parse_quote_spanned`
[INFO] [stderr]  --> src/lib.rs:5:43
[INFO] [stderr]   |
[INFO] [stderr] 5 | use syn::{parse_macro_input, parse_quote, parse_quote_spanned, Expr, Field, FieldMutability, Fields, FieldsUnnamed, ItemEnum, Visibility};
[INFO] [stderr]   |                                           ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `variant_enum` (lib) generated 1 warning (run `cargo fix --lib -p variant_enum` to apply 1 suggestion)
[INFO] [stderr] warning: fields `b`, `c`, and `d` are never read
[INFO] [stderr]   --> examples/readme.rs:9:9
[INFO] [stderr]    |
[INFO] [stderr] 7  |     A {
[INFO] [stderr]    |     - fields in this struct
[INFO] [stderr] 8  |         pub a: u32,
[INFO] [stderr] 9  |         b: f32,
[INFO] [stderr]    |         ^
[INFO] [stderr] 10 |         c: usize,
[INFO] [stderr]    |         ^
[INFO] [stderr] 11 |         d: String,
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `A` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `foo` is never read
[INFO] [stderr]   --> examples/readme.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     B {
[INFO] [stderr]    |     - field in this struct
[INFO] [stderr] 14 |         foo: String,
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `B` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `bar` is never read
[INFO] [stderr]   --> examples/readme.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     C {
[INFO] [stderr]    |     - field in this struct
[INFO] [stderr] 17 |         bar: bool,
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `C` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `variant_enum` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `variant_enum` (example "readme") generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/variant_enum-c647c7d1ecbff0da)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests variant_enum
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0a49b38c28e0df29ee39b8686268f58c8cb43dd423c7467e9711de10157325d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a49b38c28e0df29ee39b8686268f58c8cb43dd423c7467e9711de10157325d6", kill_on_drop: false }`
[INFO] [stdout] 0a49b38c28e0df29ee39b8686268f58c8cb43dd423c7467e9711de10157325d6