[INFO] fetching crate tosserror-derive 0.1.2...
[INFO] checking tosserror-derive-0.1.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate tosserror-derive 0.1.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate tosserror-derive 0.1.2
[INFO] finished tweaking crates.io crate tosserror-derive 0.1.2
[INFO] tweaked toml for crates.io crate tosserror-derive 0.1.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tosserror-derive 0.1.2 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] 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] 268905e04c71d2c0e540e975bb9ee92b3eecf52fcdaa22a09a59e756e0b169af
[INFO] running `Command { std: "docker" "start" "-a" "268905e04c71d2c0e540e975bb9ee92b3eecf52fcdaa22a09a59e756e0b169af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "268905e04c71d2c0e540e975bb9ee92b3eecf52fcdaa22a09a59e756e0b169af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "268905e04c71d2c0e540e975bb9ee92b3eecf52fcdaa22a09a59e756e0b169af", kill_on_drop: false }`
[INFO] [stdout] 268905e04c71d2c0e540e975bb9ee92b3eecf52fcdaa22a09a59e756e0b169af
[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] 573cd5977789195e41fbcd2e8f9bb6d88db1a87bba1c299d67d4f471ce7f9e90
[INFO] running `Command { std: "docker" "start" "-a" "573cd5977789195e41fbcd2e8f9bb6d88db1a87bba1c299d67d4f471ce7f9e90", kill_on_drop: false }`
[INFO] [stderr]     Checking syn v2.0.104
[INFO] [stderr]     Checking tosserror-derive v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `original` is never read
[INFO] [stdout]   --> src/ast.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Struct<'a> {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 14 |     pub original: &'a DeriveInput,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `original` is never read
[INFO] [stdout]   --> src/ast.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Enum<'a> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 22 |     pub original: &'a DeriveInput,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `original` is never read
[INFO] [stdout]   --> src/ast.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Variant<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 30 |     pub original: &'a syn::Variant,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/attr.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn get(input: &[Attribute]) -> Result<Attrs> {
[INFO] [stdout]    |                   ^^^^^^^^^^^^            ----- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn get(input: &[Attribute]) -> Result<Attrs<'_>> {
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `original` is never read
[INFO] [stdout]   --> src/ast.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Struct<'a> {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 14 |     pub original: &'a DeriveInput,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `original` is never read
[INFO] [stdout]   --> src/ast.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Enum<'a> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 22 |     pub original: &'a DeriveInput,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `original` is never read
[INFO] [stdout]   --> src/ast.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Variant<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 30 |     pub original: &'a syn::Variant,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/attr.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn get(input: &[Attribute]) -> Result<Attrs> {
[INFO] [stdout]    |                   ^^^^^^^^^^^^            ----- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn get(input: &[Attribute]) -> Result<Attrs<'_>> {
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "573cd5977789195e41fbcd2e8f9bb6d88db1a87bba1c299d67d4f471ce7f9e90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "573cd5977789195e41fbcd2e8f9bb6d88db1a87bba1c299d67d4f471ce7f9e90", kill_on_drop: false }`
[INFO] [stdout] 573cd5977789195e41fbcd2e8f9bb6d88db1a87bba1c299d67d4f471ce7f9e90