[INFO] fetching crate persia-speedy-derive 0.7.3...
[INFO] checking persia-speedy-derive-0.7.3 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate persia-speedy-derive 0.7.3 into /workspace/builds/worker-6-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-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate persia-speedy-derive 0.7.3 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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: v2.0.104)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b722428a8c9b454b6b5be696f2242cfe006fc2fcec6262bfb631f95dfd889b5
[INFO] running `Command { std: "docker" "start" "-a" "0b722428a8c9b454b6b5be696f2242cfe006fc2fcec6262bfb631f95dfd889b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b722428a8c9b454b6b5be696f2242cfe006fc2fcec6262bfb631f95dfd889b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b722428a8c9b454b6b5be696f2242cfe006fc2fcec6262bfb631f95dfd889b5", kill_on_drop: false }`
[INFO] [stdout] 0b722428a8c9b454b6b5be696f2242cfe006fc2fcec6262bfb631f95dfd889b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e059726ebebfd8799d795ea5c2bf336aefbdaa834a8fbbda0a90780b4ba88f5c
[INFO] running `Command { std: "docker" "start" "-a" "e059726ebebfd8799d795ea5c2bf336aefbdaa834a8fbbda0a90780b4ba88f5c", kill_on_drop: false }`
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]     Checking 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)]` 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)]` 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 3.05s
[INFO] running `Command { std: "docker" "inspect" "e059726ebebfd8799d795ea5c2bf336aefbdaa834a8fbbda0a90780b4ba88f5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e059726ebebfd8799d795ea5c2bf336aefbdaa834a8fbbda0a90780b4ba88f5c", kill_on_drop: false }`
[INFO] [stdout] e059726ebebfd8799d795ea5c2bf336aefbdaa834a8fbbda0a90780b4ba88f5c