[INFO] fetching crate persia-speedy-derive 0.7.3...
[INFO] testing persia-speedy-derive-0.7.3 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate persia-speedy-derive 0.7.3 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate persia-speedy-derive 0.7.3
[INFO] finished tweaking crates.io crate persia-speedy-derive 0.7.3
[INFO] tweaked toml for crates.io crate persia-speedy-derive 0.7.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate persia-speedy-derive 0.7.3 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.108)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5621c139ffb14d9eaf36b7329c0f8082282c2b44b127440ad09795c5d84019bd
[INFO] running `Command { std: "docker" "start" "-a" "5621c139ffb14d9eaf36b7329c0f8082282c2b44b127440ad09795c5d84019bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5621c139ffb14d9eaf36b7329c0f8082282c2b44b127440ad09795c5d84019bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5621c139ffb14d9eaf36b7329c0f8082282c2b44b127440ad09795c5d84019bd", kill_on_drop: false }`
[INFO] [stdout] 5621c139ffb14d9eaf36b7329c0f8082282c2b44b127440ad09795c5d84019bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 393bf9806bf7f986bd8ec4c3d4c662176cde0a6a99d5ed4a8ce8112e36c1fec9
[INFO] running `Command { std: "docker" "start" "-a" "393bf9806bf7f986bd8ec4c3d4c662176cde0a6a99d5ed4a8ce8112e36c1fec9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling persia-speedy-derive v0.7.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:671:15
[INFO] [stdout]     |
[INFO] [stdout] 671 |     CowSlice( syn::Lifetime, syn::Type ),
[INFO] [stdout]     |     --------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 671 -     CowSlice( syn::Lifetime, syn::Type ),
[INFO] [stdout] 671 +     CowSlice( (), syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:672:13
[INFO] [stdout]     |
[INFO] [stdout] 672 |     CowStr( syn::Lifetime ),
[INFO] [stdout]     |     ------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 672 -     CowStr( syn::Lifetime ),
[INFO] [stdout] 672 +     CowStr( () ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:678:17
[INFO] [stdout]     |
[INFO] [stdout] 678 |     CowHashMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stdout]     |     ----------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 678 -     CowHashMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stdout] 678 +     CowHashMap( (), syn::Type, syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:679:17
[INFO] [stdout]     |
[INFO] [stdout] 679 |     CowHashSet( syn::Lifetime, syn::Type ),
[INFO] [stdout]     |     ----------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 679 -     CowHashSet( syn::Lifetime, syn::Type ),
[INFO] [stdout] 679 +     CowHashSet( (), syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:680:18
[INFO] [stdout]     |
[INFO] [stdout] 680 |     CowBTreeMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stdout]     |     -----------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 680 -     CowBTreeMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stdout] 680 +     CowBTreeMap( (), syn::Type, syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:681:18
[INFO] [stdout]     |
[INFO] [stdout] 681 |     CowBTreeSet( syn::Lifetime, syn::Type ),
[INFO] [stdout]     |     -----------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 681 -     CowBTreeSet( syn::Lifetime, syn::Type ),
[INFO] [stdout] 681 +     CowBTreeSet( (), syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:685:9
[INFO] [stdout]     |
[INFO] [stdout] 685 |     Ty( syn::Type )
[INFO] [stdout]     |     --  ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 685 -     Ty( syn::Type )
[INFO] [stdout] 685 +     Ty( () )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.75s
[INFO] running `Command { std: "docker" "inspect" "393bf9806bf7f986bd8ec4c3d4c662176cde0a6a99d5ed4a8ce8112e36c1fec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "393bf9806bf7f986bd8ec4c3d4c662176cde0a6a99d5ed4a8ce8112e36c1fec9", kill_on_drop: false }`
[INFO] [stdout] 393bf9806bf7f986bd8ec4c3d4c662176cde0a6a99d5ed4a8ce8112e36c1fec9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76453da1c8cfb15cae5438e7c3d1937f825a0300ce5dbfb5801089d2be4f34a7
[INFO] running `Command { std: "docker" "start" "-a" "76453da1c8cfb15cae5438e7c3d1937f825a0300ce5dbfb5801089d2be4f34a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling persia-speedy-derive v0.7.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:671:15
[INFO] [stdout]     |
[INFO] [stdout] 671 |     CowSlice( syn::Lifetime, syn::Type ),
[INFO] [stdout]     |     --------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 671 -     CowSlice( syn::Lifetime, syn::Type ),
[INFO] [stdout] 671 +     CowSlice( (), syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:672:13
[INFO] [stdout]     |
[INFO] [stdout] 672 |     CowStr( syn::Lifetime ),
[INFO] [stdout]     |     ------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 672 -     CowStr( syn::Lifetime ),
[INFO] [stdout] 672 +     CowStr( () ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:678:17
[INFO] [stdout]     |
[INFO] [stdout] 678 |     CowHashMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stdout]     |     ----------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 678 -     CowHashMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stdout] 678 +     CowHashMap( (), syn::Type, syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:679:17
[INFO] [stdout]     |
[INFO] [stdout] 679 |     CowHashSet( syn::Lifetime, syn::Type ),
[INFO] [stdout]     |     ----------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 679 -     CowHashSet( syn::Lifetime, syn::Type ),
[INFO] [stdout] 679 +     CowHashSet( (), syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:680:18
[INFO] [stdout]     |
[INFO] [stdout] 680 |     CowBTreeMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stdout]     |     -----------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 680 -     CowBTreeMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stdout] 680 +     CowBTreeMap( (), syn::Type, syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:681:18
[INFO] [stdout]     |
[INFO] [stdout] 681 |     CowBTreeSet( syn::Lifetime, syn::Type ),
[INFO] [stdout]     |     -----------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 681 -     CowBTreeSet( syn::Lifetime, syn::Type ),
[INFO] [stdout] 681 +     CowBTreeSet( (), syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:685:9
[INFO] [stdout]     |
[INFO] [stdout] 685 |     Ty( syn::Type )
[INFO] [stdout]     |     --  ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 685 -     Ty( syn::Type )
[INFO] [stdout] 685 +     Ty( () )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:671:15
[INFO] [stdout]     |
[INFO] [stdout] 671 |     CowSlice( syn::Lifetime, syn::Type ),
[INFO] [stdout]     |     --------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 671 -     CowSlice( syn::Lifetime, syn::Type ),
[INFO] [stdout] 671 +     CowSlice( (), syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:672:13
[INFO] [stdout]     |
[INFO] [stdout] 672 |     CowStr( syn::Lifetime ),
[INFO] [stdout]     |     ------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 672 -     CowStr( syn::Lifetime ),
[INFO] [stdout] 672 +     CowStr( () ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:678:17
[INFO] [stdout]     |
[INFO] [stdout] 678 |     CowHashMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stdout]     |     ----------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 678 -     CowHashMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stdout] 678 +     CowHashMap( (), syn::Type, syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:679:17
[INFO] [stdout]     |
[INFO] [stdout] 679 |     CowHashSet( syn::Lifetime, syn::Type ),
[INFO] [stdout]     |     ----------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 679 -     CowHashSet( syn::Lifetime, syn::Type ),
[INFO] [stdout] 679 +     CowHashSet( (), syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:680:18
[INFO] [stdout]     |
[INFO] [stdout] 680 |     CowBTreeMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stdout]     |     -----------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 680 -     CowBTreeMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stdout] 680 +     CowBTreeMap( (), syn::Type, syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:681:18
[INFO] [stdout]     |
[INFO] [stdout] 681 |     CowBTreeSet( syn::Lifetime, syn::Type ),
[INFO] [stdout]     |     -----------  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 681 -     CowBTreeSet( syn::Lifetime, syn::Type ),
[INFO] [stdout] 681 +     CowBTreeSet( (), syn::Type ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:685:9
[INFO] [stdout]     |
[INFO] [stdout] 685 |     Ty( syn::Type )
[INFO] [stdout]     |     --  ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 685 -     Ty( syn::Type )
[INFO] [stdout] 685 +     Ty( () )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "76453da1c8cfb15cae5438e7c3d1937f825a0300ce5dbfb5801089d2be4f34a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76453da1c8cfb15cae5438e7c3d1937f825a0300ce5dbfb5801089d2be4f34a7", kill_on_drop: false }`
[INFO] [stdout] 76453da1c8cfb15cae5438e7c3d1937f825a0300ce5dbfb5801089d2be4f34a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dff7a245988815ac3ef407f83992ab8134327f0bb356fefaafc86bb470f21f39
[INFO] running `Command { std: "docker" "start" "-a" "dff7a245988815ac3ef407f83992ab8134327f0bb356fefaafc86bb470f21f39", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:671:15
[INFO] [stderr]     |
[INFO] [stderr] 671 |     CowSlice( syn::Lifetime, syn::Type ),
[INFO] [stderr]     |     --------  ^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 671 -     CowSlice( syn::Lifetime, syn::Type ),
[INFO] [stderr] 671 +     CowSlice( (), syn::Type ),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:672:13
[INFO] [stderr]     |
[INFO] [stderr] 672 |     CowStr( syn::Lifetime ),
[INFO] [stderr]     |     ------  ^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 672 -     CowStr( syn::Lifetime ),
[INFO] [stderr] 672 +     CowStr( () ),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:678:17
[INFO] [stderr]     |
[INFO] [stderr] 678 |     CowHashMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stderr]     |     ----------  ^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 678 -     CowHashMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stderr] 678 +     CowHashMap( (), syn::Type, syn::Type ),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:679:17
[INFO] [stderr]     |
[INFO] [stderr] 679 |     CowHashSet( syn::Lifetime, syn::Type ),
[INFO] [stderr]     |     ----------  ^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 679 -     CowHashSet( syn::Lifetime, syn::Type ),
[INFO] [stderr] 679 +     CowHashSet( (), syn::Type ),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:680:18
[INFO] [stderr]     |
[INFO] [stderr] 680 |     CowBTreeMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stderr]     |     -----------  ^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 680 -     CowBTreeMap( syn::Lifetime, syn::Type, syn::Type ),
[INFO] [stderr] 680 +     CowBTreeMap( (), syn::Type, syn::Type ),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:681:18
[INFO] [stderr]     |
[INFO] [stderr] 681 |     CowBTreeSet( syn::Lifetime, syn::Type ),
[INFO] [stderr]     |     -----------  ^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 681 -     CowBTreeSet( syn::Lifetime, syn::Type ),
[INFO] [stderr] 681 +     CowBTreeSet( (), syn::Type ),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:685:9
[INFO] [stderr]     |
[INFO] [stderr] 685 |     Ty( syn::Type )
[INFO] [stderr]     |     --  ^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 685 -     Ty( syn::Type )
[INFO] [stderr] 685 +     Ty( () )
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `persia-speedy-derive` (lib) generated 7 warnings
[INFO] [stderr] warning: `persia-speedy-derive` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/persia_speedy_derive-8dc58619a2b7ba07)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_possibly_uses_generic_ty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests persia_speedy_derive
[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" "dff7a245988815ac3ef407f83992ab8134327f0bb356fefaafc86bb470f21f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dff7a245988815ac3ef407f83992ab8134327f0bb356fefaafc86bb470f21f39", kill_on_drop: false }`
[INFO] [stdout] dff7a245988815ac3ef407f83992ab8134327f0bb356fefaafc86bb470f21f39
