[INFO] cloning repository https://github.com/nurmohammed840/serde-derive-next
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nurmohammed840/serde-derive-next" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnurmohammed840%2Fserde-derive-next", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnurmohammed840%2Fserde-derive-next'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04eba26da10d73ad6c15776badb65637ee63749a
[INFO] testing nurmohammed840/serde-derive-next against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnurmohammed840%2Fserde-derive-next" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/nurmohammed840/serde-derive-next
[INFO] finished tweaking git repo https://github.com/nurmohammed840/serde-derive-next
[INFO] tweaked toml for git repo https://github.com/nurmohammed840/serde-derive-next written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nurmohammed840/serde-derive-next on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nurmohammed840/serde-derive-next already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote2 v0.9.0
[INFO] [stderr]   Downloaded quote2-macros v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f270347db89fa487436a8b7328942aea08857df9247e61072b2546476aea1f35
[INFO] running `Command { std: "docker" "start" "-a" "f270347db89fa487436a8b7328942aea08857df9247e61072b2546476aea1f35", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "f270347db89fa487436a8b7328942aea08857df9247e61072b2546476aea1f35", kill_on_drop: false }`
[INFO] [stdout] f270347db89fa487436a8b7328942aea08857df9247e61072b2546476aea1f35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b049afc1f47cc3f63e9172166a15d5382eb106321c687dd0afd35096cb7086a
[INFO] running `Command { std: "docker" "start" "-a" "3b049afc1f47cc3f63e9172166a15d5382eb106321c687dd0afd35096cb7086a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling serde_derive_impl v1.0.210 (/opt/rustwide/workdir/crates/serde_derive_impl)
[INFO] [stderr]    Compiling serde_derive_next_impl v1.0.210 (/opt/rustwide/workdir/crates/serde_derive_next_impl)
[INFO] [stderr]    Compiling quote2-macros v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.210 (/opt/rustwide/workdir/crates/serde_derive)
[INFO] [stderr]    Compiling serde_derive_next v1.0.210 (/opt/rustwide/workdir/crates/serde_derive_next)
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling quote2 v0.9.0
[INFO] [stdout] warning: struct `Expr` is never constructed
[INFO] [stdout]    --> crates/serde_derive_next_impl/src/fragment.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub struct Expr<'a>(pub Fragment<'a>);
[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]    --> crates/serde_derive_next_impl/src/internals/attr.rs:660:23
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<syn::Path> {
[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] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> crates/serde_derive_next_impl/src/internals/case.rs:45:37
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError> {
[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] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> crates/serde_derive_next_impl/src/de.rs:3173:13
[INFO] [stdout]      |
[INFO] [stdout] 3173 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ this lifetime flows to the output
[INFO] [stdout] 3174 | ) -> (
[INFO] [stdout] 3175 |     DeImplGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3176 |     DeTypeGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3177 |     syn::TypeGenerics,
[INFO] [stdout]      |     ----------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3178 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ----------------- the lifetimes get resolved as `'_`
[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] 3175 ~     DeImplGenerics<'_>,
[INFO] [stdout] 3176 ~     DeTypeGenerics<'_>,
[INFO] [stdout] 3177 ~     syn::TypeGenerics<'_>,
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/serde_derive_next_impl/src/ser.rs:227:34
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment {
[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] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment<'_> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/serde_derive_impl/src/internals/attr.rs:660:23
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<syn::Path> {
[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] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> crates/serde_derive_impl/src/internals/case.rs:45:37
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError> {
[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] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> crates/serde_derive_impl/src/de.rs:3161:13
[INFO] [stdout]      |
[INFO] [stdout] 3161 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ this lifetime flows to the output
[INFO] [stdout] 3162 | ) -> (
[INFO] [stdout] 3163 |     DeImplGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3164 |     DeTypeGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3165 |     syn::TypeGenerics,
[INFO] [stdout]      |     ----------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3166 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ----------------- the lifetimes get resolved as `'_`
[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] 3163 ~     DeImplGenerics<'_>,
[INFO] [stdout] 3164 ~     DeTypeGenerics<'_>,
[INFO] [stdout] 3165 ~     syn::TypeGenerics<'_>,
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/serde_derive_impl/src/internals/attr.rs:660:23
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<syn::Path> {
[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] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> crates/serde_derive_impl/src/internals/case.rs:45:37
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError> {
[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] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> crates/serde_derive_impl/src/de.rs:3161:13
[INFO] [stdout]      |
[INFO] [stdout] 3161 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ this lifetime flows to the output
[INFO] [stdout] 3162 | ) -> (
[INFO] [stdout] 3163 |     DeImplGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3164 |     DeTypeGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3165 |     syn::TypeGenerics,
[INFO] [stdout]      |     ----------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3166 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ----------------- the lifetimes get resolved as `'_`
[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] 3163 ~     DeImplGenerics<'_>,
[INFO] [stdout] 3164 ~     DeTypeGenerics<'_>,
[INFO] [stdout] 3165 ~     syn::TypeGenerics<'_>,
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Expr` is never constructed
[INFO] [stdout]    --> crates/serde_derive_next_impl/src/fragment.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub struct Expr<'a>(pub Fragment<'a>);
[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]    --> crates/serde_derive_next_impl/src/internals/attr.rs:660:23
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<syn::Path> {
[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] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> crates/serde_derive_next_impl/src/internals/case.rs:45:37
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError> {
[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] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> crates/serde_derive_next_impl/src/de.rs:3173:13
[INFO] [stdout]      |
[INFO] [stdout] 3173 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ this lifetime flows to the output
[INFO] [stdout] 3174 | ) -> (
[INFO] [stdout] 3175 |     DeImplGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3176 |     DeTypeGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3177 |     syn::TypeGenerics,
[INFO] [stdout]      |     ----------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3178 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ----------------- the lifetimes get resolved as `'_`
[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] 3175 ~     DeImplGenerics<'_>,
[INFO] [stdout] 3176 ~     DeTypeGenerics<'_>,
[INFO] [stdout] 3177 ~     syn::TypeGenerics<'_>,
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/serde_derive_next_impl/src/ser.rs:227:34
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment {
[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] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment<'_> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling example v0.1.0 (/opt/rustwide/workdir/example)
[INFO] [stderr]    Compiling bench v0.1.0 (/opt/rustwide/workdir/bench)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 1m 56s
[INFO] running `Command { std: "docker" "inspect" "3b049afc1f47cc3f63e9172166a15d5382eb106321c687dd0afd35096cb7086a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b049afc1f47cc3f63e9172166a15d5382eb106321c687dd0afd35096cb7086a", kill_on_drop: false }`
[INFO] [stdout] 3b049afc1f47cc3f63e9172166a15d5382eb106321c687dd0afd35096cb7086a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 757f0d24411efbc320839fff4a67ec468984138d889153973df9413811097154
[INFO] running `Command { std: "docker" "start" "-a" "757f0d24411efbc320839fff4a67ec468984138d889153973df9413811097154", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Expr` is never constructed
[INFO] [stdout]    --> crates/serde_derive_next_impl/src/fragment.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub struct Expr<'a>(pub Fragment<'a>);
[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]    --> crates/serde_derive_next_impl/src/internals/attr.rs:660:23
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<syn::Path> {
[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] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> crates/serde_derive_next_impl/src/internals/case.rs:45:37
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError> {
[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] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> crates/serde_derive_next_impl/src/de.rs:3173:13
[INFO] [stdout]      |
[INFO] [stdout] 3173 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ this lifetime flows to the output
[INFO] [stdout] 3174 | ) -> (
[INFO] [stdout] 3175 |     DeImplGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3176 |     DeTypeGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3177 |     syn::TypeGenerics,
[INFO] [stdout]      |     ----------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3178 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ----------------- the lifetimes get resolved as `'_`
[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] 3175 ~     DeImplGenerics<'_>,
[INFO] [stdout] 3176 ~     DeTypeGenerics<'_>,
[INFO] [stdout] 3177 ~     syn::TypeGenerics<'_>,
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/serde_derive_next_impl/src/ser.rs:227:34
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment {
[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] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment<'_> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/serde_derive_impl/src/internals/attr.rs:660:23
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<syn::Path> {
[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] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> crates/serde_derive_impl/src/internals/case.rs:45:37
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError> {
[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] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> crates/serde_derive_impl/src/de.rs:3161:13
[INFO] [stdout]      |
[INFO] [stdout] 3161 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ this lifetime flows to the output
[INFO] [stdout] 3162 | ) -> (
[INFO] [stdout] 3163 |     DeImplGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3164 |     DeTypeGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3165 |     syn::TypeGenerics,
[INFO] [stdout]      |     ----------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3166 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ----------------- the lifetimes get resolved as `'_`
[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] 3163 ~     DeImplGenerics<'_>,
[INFO] [stdout] 3164 ~     DeTypeGenerics<'_>,
[INFO] [stdout] 3165 ~     syn::TypeGenerics<'_>,
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/serde_derive_impl/src/internals/attr.rs:660:23
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<syn::Path> {
[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] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> crates/serde_derive_impl/src/internals/case.rs:45:37
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError> {
[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] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> crates/serde_derive_impl/src/de.rs:3161:13
[INFO] [stdout]      |
[INFO] [stdout] 3161 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ this lifetime flows to the output
[INFO] [stdout] 3162 | ) -> (
[INFO] [stdout] 3163 |     DeImplGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3164 |     DeTypeGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3165 |     syn::TypeGenerics,
[INFO] [stdout]      |     ----------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3166 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ----------------- the lifetimes get resolved as `'_`
[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] 3163 ~     DeImplGenerics<'_>,
[INFO] [stdout] 3164 ~     DeTypeGenerics<'_>,
[INFO] [stdout] 3165 ~     syn::TypeGenerics<'_>,
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Expr` is never constructed
[INFO] [stdout]    --> crates/serde_derive_next_impl/src/fragment.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub struct Expr<'a>(pub Fragment<'a>);
[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]    --> crates/serde_derive_next_impl/src/internals/attr.rs:660:23
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<syn::Path> {
[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] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> crates/serde_derive_next_impl/src/internals/case.rs:45:37
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError> {
[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] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> crates/serde_derive_next_impl/src/de.rs:3173:13
[INFO] [stdout]      |
[INFO] [stdout] 3173 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ this lifetime flows to the output
[INFO] [stdout] 3174 | ) -> (
[INFO] [stdout] 3175 |     DeImplGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3176 |     DeTypeGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3177 |     syn::TypeGenerics,
[INFO] [stdout]      |     ----------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3178 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ----------------- the lifetimes get resolved as `'_`
[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] 3175 ~     DeImplGenerics<'_>,
[INFO] [stdout] 3176 ~     DeTypeGenerics<'_>,
[INFO] [stdout] 3177 ~     syn::TypeGenerics<'_>,
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/serde_derive_next_impl/src/ser.rs:227:34
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment {
[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] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment<'_> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive_next_impl v1.0.210 (/opt/rustwide/workdir/crates/serde_derive_next_impl)
[INFO] [stderr]    Compiling serde_derive_impl v1.0.210 (/opt/rustwide/workdir/crates/serde_derive_impl)
[INFO] [stderr]    Compiling serde_derive_next v1.0.210 (/opt/rustwide/workdir/crates/serde_derive_next)
[INFO] [stderr]    Compiling serde_derive v1.0.210 (/opt/rustwide/workdir/crates/serde_derive)
[INFO] [stderr]    Compiling example v0.1.0 (/opt/rustwide/workdir/example)
[INFO] [stderr]    Compiling bench v0.1.0 (/opt/rustwide/workdir/bench)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/serde_derive_impl/src/internals/attr.rs:660:23
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<syn::Path> {
[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] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> crates/serde_derive_impl/src/internals/case.rs:45:37
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError> {
[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] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Expr` is never constructed
[INFO] [stdout]    --> crates/serde_derive_next_impl/src/fragment.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub struct Expr<'a>(pub Fragment<'a>);
[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]    --> crates/serde_derive_next_impl/src/internals/attr.rs:660:23
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<syn::Path> {
[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] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> crates/serde_derive_next_impl/src/internals/case.rs:45:37
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError> {
[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] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> crates/serde_derive_impl/src/de.rs:3161:13
[INFO] [stdout]      |
[INFO] [stdout] 3161 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ this lifetime flows to the output
[INFO] [stdout] 3162 | ) -> (
[INFO] [stdout] 3163 |     DeImplGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3164 |     DeTypeGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3165 |     syn::TypeGenerics,
[INFO] [stdout]      |     ----------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3166 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ----------------- the lifetimes get resolved as `'_`
[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] 3163 ~     DeImplGenerics<'_>,
[INFO] [stdout] 3164 ~     DeTypeGenerics<'_>,
[INFO] [stdout] 3165 ~     syn::TypeGenerics<'_>,
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]     --> crates/serde_derive_next_impl/src/de.rs:3173:13
[INFO] [stdout]      |
[INFO] [stdout] 3173 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ this lifetime flows to the output
[INFO] [stdout] 3174 | ) -> (
[INFO] [stdout] 3175 |     DeImplGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3176 |     DeTypeGenerics,
[INFO] [stdout]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3177 |     syn::TypeGenerics,
[INFO] [stdout]      |     ----------------- the lifetimes get resolved as `'_`
[INFO] [stdout] 3178 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ----------------- the lifetimes get resolved as `'_`
[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] 3175 ~     DeImplGenerics<'_>,
[INFO] [stdout] 3176 ~     DeTypeGenerics<'_>,
[INFO] [stdout] 3177 ~     syn::TypeGenerics<'_>,
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/serde_derive_next_impl/src/ser.rs:227:34
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment {
[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] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment<'_> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 5.31s
[INFO] running `Command { std: "docker" "inspect" "757f0d24411efbc320839fff4a67ec468984138d889153973df9413811097154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "757f0d24411efbc320839fff4a67ec468984138d889153973df9413811097154", kill_on_drop: false }`
[INFO] [stdout] 757f0d24411efbc320839fff4a67ec468984138d889153973df9413811097154
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c5e61e3748121cb82fd0bb537c434c058c1c3450b8a948d5b0640943da00f516
[INFO] running `Command { std: "docker" "start" "-a" "c5e61e3748121cb82fd0bb537c434c058c1c3450b8a948d5b0640943da00f516", kill_on_drop: false }`
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> crates/serde_derive_impl/src/internals/attr.rs:660:23
[INFO] [stderr]     |
[INFO] [stderr] 660 |     pub fn serde_path(&self) -> Cow<syn::Path> {
[INFO] [stderr]     |                       ^^^^^     -------------- the lifetime gets resolved as `'_`
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stderr]     |                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> crates/serde_derive_impl/src/internals/case.rs:45:37
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError> {
[INFO] [stderr]    |                                     ^^^^                  ---------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stderr]    |                                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]     --> crates/serde_derive_impl/src/de.rs:3161:13
[INFO] [stderr]      |
[INFO] [stderr] 3161 |     params: &Parameters,
[INFO] [stderr]      |             ^^^^^^^^^^^ this lifetime flows to the output
[INFO] [stderr] 3162 | ) -> (
[INFO] [stderr] 3163 |     DeImplGenerics,
[INFO] [stderr]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stderr] 3164 |     DeTypeGenerics,
[INFO] [stderr]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stderr] 3165 |     syn::TypeGenerics,
[INFO] [stderr]      |     ----------------- the lifetimes get resolved as `'_`
[INFO] [stderr] 3166 |     Option<&syn::WhereClause>,
[INFO] [stderr]      |            ----------------- the lifetimes get resolved as `'_`
[INFO] [stderr]      |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]      |
[INFO] [stderr] 3163 ~     DeImplGenerics<'_>,
[INFO] [stderr] 3164 ~     DeTypeGenerics<'_>,
[INFO] [stderr] 3165 ~     syn::TypeGenerics<'_>,
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Expr` is never constructed
[INFO] [stderr]    --> crates/serde_derive_next_impl/src/fragment.rs:102:16
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub struct Expr<'a>(pub Fragment<'a>);
[INFO] [stderr]     |                ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> crates/serde_derive_next_impl/src/internals/attr.rs:660:23
[INFO] [stderr]     |
[INFO] [stderr] 660 |     pub fn serde_path(&self) -> Cow<syn::Path> {
[INFO] [stderr]     |                       ^^^^^     -------------- the lifetime gets resolved as `'_`
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stderr]     |                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> crates/serde_derive_next_impl/src/internals/case.rs:45:37
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError> {
[INFO] [stderr]    |                                     ^^^^                  ---------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stderr]    |                                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]     --> crates/serde_derive_next_impl/src/de.rs:3173:13
[INFO] [stderr]      |
[INFO] [stderr] 3173 |     params: &Parameters,
[INFO] [stderr]      |             ^^^^^^^^^^^ this lifetime flows to the output
[INFO] [stderr] 3174 | ) -> (
[INFO] [stderr] 3175 |     DeImplGenerics,
[INFO] [stderr]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stderr] 3176 |     DeTypeGenerics,
[INFO] [stderr]      |     -------------- the lifetimes get resolved as `'_`
[INFO] [stderr] 3177 |     syn::TypeGenerics,
[INFO] [stderr]      |     ----------------- the lifetimes get resolved as `'_`
[INFO] [stderr] 3178 |     Option<&syn::WhereClause>,
[INFO] [stderr]      |            ----------------- the lifetimes get resolved as `'_`
[INFO] [stderr]      |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]      |
[INFO] [stderr] 3175 ~     DeImplGenerics<'_>,
[INFO] [stderr] 3176 ~     DeTypeGenerics<'_>,
[INFO] [stderr] 3177 ~     syn::TypeGenerics<'_>,
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> crates/serde_derive_next_impl/src/ser.rs:227:34
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^     -------- the lifetime gets resolved as `'_`
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment<'_> {
[INFO] [stderr]     |                                                               ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `serde_derive_impl` (lib) generated 3 warnings
[INFO] [stderr] warning: `serde_derive_next_impl` (lib) generated 5 warnings
[INFO] [stderr] warning: `serde_derive_next_impl` (lib) generated 5 warnings (5 duplicates)
[INFO] [stderr] warning: `serde_derive_impl` (lib) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: `serde_derive_impl` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: `serde_derive_next_impl` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/bench-0f70c6e7f75f2f04)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/example-0a4f0bb56abc4dc4)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_derive-42c6cc44cdaf7d29)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_derive_impl-f20b97eac4e37bfb)
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test internals::case::rename_variants ... ok
[INFO] [stdout] test internals::case::rename_fields ... ok
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_derive_next-cf35a118585dac97)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_derive_next_impl-b0b6eb35e2ecc8cf)
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stderr]    Doc-tests serde_derive
[INFO] [stdout] 
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test internals::case::rename_fields ... ok
[INFO] [stdout] test internals::case::rename_variants ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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] [stderr]    Doc-tests serde_derive_impl
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test crates/serde_derive_impl/src/lib.rs - (line 3) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- crates/serde_derive_impl/src/lib.rs - (line 3) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `serde_derive`
[INFO] [stdout]  --> crates/serde_derive_impl/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde_derive::{Deserialize, Serialize};
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of unresolved module or unlinked crate `serde_derive`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `serde_derive`, use `cargo add serde_derive` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     crates/serde_derive_impl/src/lib.rs - (line 3)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `-p serde_derive_impl --doc`
[INFO] running `Command { std: "docker" "inspect" "c5e61e3748121cb82fd0bb537c434c058c1c3450b8a948d5b0640943da00f516", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5e61e3748121cb82fd0bb537c434c058c1c3450b8a948d5b0640943da00f516", kill_on_drop: false }`
[INFO] [stdout] c5e61e3748121cb82fd0bb537c434c058c1c3450b8a948d5b0640943da00f516
