[INFO] fetching crate struct-variant 1.0.2...
[INFO] building struct-variant-1.0.2 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate struct-variant 1.0.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate struct-variant 1.0.2
[INFO] finished tweaking crates.io crate struct-variant 1.0.2
[INFO] tweaked toml for crates.io crate struct-variant 1.0.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate struct-variant 1.0.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 33 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[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] 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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c771495697f0231b68f8dd9a06fa8c15b593feed239ab94d6a570553aafa0bd
[INFO] running `Command { std: "docker" "start" "-a" "8c771495697f0231b68f8dd9a06fa8c15b593feed239ab94d6a570553aafa0bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c771495697f0231b68f8dd9a06fa8c15b593feed239ab94d6a570553aafa0bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c771495697f0231b68f8dd9a06fa8c15b593feed239ab94d6a570553aafa0bd", kill_on_drop: false }`
[INFO] [stdout] 8c771495697f0231b68f8dd9a06fa8c15b593feed239ab94d6a570553aafa0bd
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6826e8ab98398bc225013fea7a72fa043a8d4f7478affd639874ff869ef20e7
[INFO] running `Command { std: "docker" "start" "-a" "f6826e8ab98398bc225013fea7a72fa043a8d4f7478affd639874ff869ef20e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling struct-variant v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `paren_token` is never read
[INFO] [stdout]   --> src/lib.rs:36:6
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Field {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 36 |     pub paren_token: Paren,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `enum_token` and `brace_token` are never read
[INFO] [stdout]    --> src/lib.rs:120:6
[INFO] [stdout]     |
[INFO] [stdout] 117 | struct VariantEnum {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub enum_token: Token![enum],
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub brace_token: Brace,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.07s
[INFO] running `Command { std: "docker" "inspect" "f6826e8ab98398bc225013fea7a72fa043a8d4f7478affd639874ff869ef20e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6826e8ab98398bc225013fea7a72fa043a8d4f7478affd639874ff869ef20e7", kill_on_drop: false }`
[INFO] [stdout] f6826e8ab98398bc225013fea7a72fa043a8d4f7478affd639874ff869ef20e7
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72b2059422b9e3aed83287a869a3f0304b8ba25e66f620e9cb6df42fe44f88cb
[INFO] running `Command { std: "docker" "start" "-a" "72b2059422b9e3aed83287a869a3f0304b8ba25e66f620e9cb6df42fe44f88cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling target-triple v0.1.4
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling toml_writer v1.0.3
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling struct-variant v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `paren_token` is never read
[INFO] [stdout]   --> src/lib.rs:36:6
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Field {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 36 |     pub paren_token: Paren,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `enum_token` and `brace_token` are never read
[INFO] [stdout]    --> src/lib.rs:120:6
[INFO] [stdout]     |
[INFO] [stdout] 117 | struct VariantEnum {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub enum_token: Token![enum],
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub brace_token: Brace,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling toml_parser v1.0.3
[INFO] [stderr]    Compiling toml_datetime v0.7.2
[INFO] [stderr]    Compiling serde_spanned v1.0.2
[INFO] [stderr]    Compiling toml v0.9.7
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling trybuild v1.0.111
[INFO] [stdout] warning: field `paren_token` is never read
[INFO] [stdout]   --> src/lib.rs:36:6
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Field {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 36 |     pub paren_token: Paren,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `enum_token` and `brace_token` are never read
[INFO] [stdout]    --> src/lib.rs:120:6
[INFO] [stdout]     |
[INFO] [stdout] 117 | struct VariantEnum {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub enum_token: Token![enum],
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub brace_token: Brace,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 19.35s
[INFO] running `Command { std: "docker" "inspect" "72b2059422b9e3aed83287a869a3f0304b8ba25e66f620e9cb6df42fe44f88cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72b2059422b9e3aed83287a869a3f0304b8ba25e66f620e9cb6df42fe44f88cb", kill_on_drop: false }`
[INFO] [stdout] 72b2059422b9e3aed83287a869a3f0304b8ba25e66f620e9cb6df42fe44f88cb