[INFO] fetching crate float_eq_derive 1.0.1...
[INFO] checking float_eq_derive-1.0.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate float_eq_derive 1.0.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate float_eq_derive 1.0.1
[INFO] finished tweaking crates.io crate float_eq_derive 1.0.1
[INFO] tweaked toml for crates.io crate float_eq_derive 1.0.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate float_eq_derive 1.0.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a97c8c4be3e04368576206c4f25df47380110aaf2d582c1e393263222fa4467
[INFO] running `Command { std: "docker" "start" "-a" "8a97c8c4be3e04368576206c4f25df47380110aaf2d582c1e393263222fa4467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a97c8c4be3e04368576206c4f25df47380110aaf2d582c1e393263222fa4467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a97c8c4be3e04368576206c4f25df47380110aaf2d582c1e393263222fa4467", kill_on_drop: false }`
[INFO] [stdout] 8a97c8c4be3e04368576206c4f25df47380110aaf2d582c1e393263222fa4467
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3140b00dea45f80d0bd670e397dac60568b79d33de9c5db28d1452954dd6f45c
[INFO] running `Command { std: "docker" "start" "-a" "3140b00dea45f80d0bd670e397dac60568b79d33de9c5db28d1452954dd6f45c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking float_eq_derive v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `vis` is never read
[INFO] [stdout]   --> src/read.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct FieldInfo<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub vis: &'a Visibility,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/read.rs:78:28
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn named_field_info(field: &syn::Field) -> FieldInfo {
[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] 78 | fn named_field_info(field: &syn::Field) -> FieldInfo<'_> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/read.rs:86:43
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn unnamed_field_info((n, field): (usize, &syn::Field)) -> FieldInfo {
[INFO] [stdout]    |                                           ^^^^^^^^^^^      --------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn unnamed_field_info((n, field): (usize, &syn::Field)) -> FieldInfo<'_> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vis` is never read
[INFO] [stdout]   --> src/read.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct FieldInfo<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub vis: &'a Visibility,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/read.rs:78:28
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn named_field_info(field: &syn::Field) -> FieldInfo {
[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] 78 | fn named_field_info(field: &syn::Field) -> FieldInfo<'_> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/read.rs:86:43
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn unnamed_field_info((n, field): (usize, &syn::Field)) -> FieldInfo {
[INFO] [stdout]    |                                           ^^^^^^^^^^^      --------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn unnamed_field_info((n, field): (usize, &syn::Field)) -> FieldInfo<'_> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `Command { std: "docker" "inspect" "3140b00dea45f80d0bd670e397dac60568b79d33de9c5db28d1452954dd6f45c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3140b00dea45f80d0bd670e397dac60568b79d33de9c5db28d1452954dd6f45c", kill_on_drop: false }`
[INFO] [stdout] 3140b00dea45f80d0bd670e397dac60568b79d33de9c5db28d1452954dd6f45c