[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 try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnurmohammed840%2Fserde-derive-next" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc2/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-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nurmohammed840/serde-derive-next on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5aadce8773e1b86cc6de8ba2b80ef02f491d24640eccda1527de55af8e734c0f
[INFO] running `Command { std: "docker" "start" "-a" "5aadce8773e1b86cc6de8ba2b80ef02f491d24640eccda1527de55af8e734c0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5aadce8773e1b86cc6de8ba2b80ef02f491d24640eccda1527de55af8e734c0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5aadce8773e1b86cc6de8ba2b80ef02f491d24640eccda1527de55af8e734c0f", kill_on_drop: false }`
[INFO] [stdout] 5aadce8773e1b86cc6de8ba2b80ef02f491d24640eccda1527de55af8e734c0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 26ecbac0b39317b00a8aa531654757421d6df60fd1521234387529866ab989fe
[INFO] running `Command { std: "docker" "start" "-a" "26ecbac0b39317b00a8aa531654757421d6df60fd1521234387529866ab989fe", 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_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 quote2-macros v0.9.0
[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 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> crates/serde_derive_next_impl/src/de.rs:3173:13
[INFO] [stdout]      |
[INFO] [stdout] 3173 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 3174 | ) -> (
[INFO] [stdout] 3175 |     DeImplGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3176 |     DeTypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3177 |     syn::TypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3178 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment<'_> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> crates/serde_derive_impl/src/de.rs:3161:13
[INFO] [stdout]      |
[INFO] [stdout] 3161 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 3162 | ) -> (
[INFO] [stdout] 3163 |     DeImplGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3164 |     DeTypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3165 |     syn::TypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3166 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> crates/serde_derive_impl/src/de.rs:3161:13
[INFO] [stdout]      |
[INFO] [stdout] 3161 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 3162 | ) -> (
[INFO] [stdout] 3163 |     DeImplGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3164 |     DeTypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3165 |     syn::TypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3166 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> crates/serde_derive_next_impl/src/de.rs:3173:13
[INFO] [stdout]      |
[INFO] [stdout] 3173 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 3174 | ) -> (
[INFO] [stdout] 3175 |     DeImplGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3176 |     DeTypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3177 |     syn::TypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3178 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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 54.14s
[INFO] running `Command { std: "docker" "inspect" "26ecbac0b39317b00a8aa531654757421d6df60fd1521234387529866ab989fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26ecbac0b39317b00a8aa531654757421d6df60fd1521234387529866ab989fe", kill_on_drop: false }`
[INFO] [stdout] 26ecbac0b39317b00a8aa531654757421d6df60fd1521234387529866ab989fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] b2acbe57bb6470656d26f6415615851af5a1d3e8fec9e897d8eab07427d0be98
[INFO] running `Command { std: "docker" "start" "-a" "b2acbe57bb6470656d26f6415615851af5a1d3e8fec9e897d8eab07427d0be98", 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> crates/serde_derive_next_impl/src/de.rs:3173:13
[INFO] [stdout]      |
[INFO] [stdout] 3173 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 3174 | ) -> (
[INFO] [stdout] 3175 |     DeImplGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3176 |     DeTypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3177 |     syn::TypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3178 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment<'_> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> crates/serde_derive_impl/src/de.rs:3161:13
[INFO] [stdout]      |
[INFO] [stdout] 3161 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 3162 | ) -> (
[INFO] [stdout] 3163 |     DeImplGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3164 |     DeTypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3165 |     syn::TypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3166 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> crates/serde_derive_next_impl/src/de.rs:3173:13
[INFO] [stdout]      |
[INFO] [stdout] 3173 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 3174 | ) -> (
[INFO] [stdout] 3175 |     DeImplGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3176 |     DeTypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3177 |     syn::TypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3178 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment<'_> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[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] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive_impl v1.0.210 (/opt/rustwide/workdir/crates/serde_derive_impl)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> crates/serde_derive_impl/src/de.rs:3161:13
[INFO] [stdout]      |
[INFO] [stdout] 3161 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 3162 | ) -> (
[INFO] [stdout] 3163 |     DeImplGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3164 |     DeTypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3165 |     syn::TypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3166 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3163 ~     DeImplGenerics<'_>,
[INFO] [stdout] 3164 ~     DeTypeGenerics<'_>,
[INFO] [stdout] 3165 ~     syn::TypeGenerics<'_>,
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bench v0.1.0 (/opt/rustwide/workdir/bench)
[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 example v0.1.0 (/opt/rustwide/workdir/example)
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> crates/serde_derive_next_impl/src/de.rs:3173:13
[INFO] [stdout]      |
[INFO] [stdout] 3173 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 3174 | ) -> (
[INFO] [stdout] 3175 |     DeImplGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3176 |     DeTypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3177 |     syn::TypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3178 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn serialize_unit_struct(cattrs: &attr::Container) -> Fragment<'_> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> crates/serde_derive_impl/src/de.rs:3161:13
[INFO] [stdout]      |
[INFO] [stdout] 3161 |     params: &Parameters,
[INFO] [stdout]      |             ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 3162 | ) -> (
[INFO] [stdout] 3163 |     DeImplGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3164 |     DeTypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3165 |     syn::TypeGenerics,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 3166 |     Option<&syn::WhereClause>,
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3163 ~     DeImplGenerics<'_>,
[INFO] [stdout] 3164 ~     DeTypeGenerics<'_>,
[INFO] [stdout] 3165 ~     syn::TypeGenerics<'_>,
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "b2acbe57bb6470656d26f6415615851af5a1d3e8fec9e897d8eab07427d0be98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2acbe57bb6470656d26f6415615851af5a1d3e8fec9e897d8eab07427d0be98", kill_on_drop: false }`
[INFO] [stdout] b2acbe57bb6470656d26f6415615851af5a1d3e8fec9e897d8eab07427d0be98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 1486fb7678366982761ff63540a7d7b4c5393c4d0bb93c476e44f6987e0cd343
[INFO] running `Command { std: "docker" "start" "-a" "1486fb7678366982761ff63540a7d7b4c5393c4d0bb93c476e44f6987e0cd343", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stderr]     |                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stderr]    |                                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]     --> crates/serde_derive_impl/src/de.rs:3161:13
[INFO] [stderr]      |
[INFO] [stderr] 3161 |     params: &Parameters,
[INFO] [stderr]      |             ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stderr] 3162 | ) -> (
[INFO] [stderr] 3163 |     DeImplGenerics,
[INFO] [stderr]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr] 3164 |     DeTypeGenerics,
[INFO] [stderr]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr] 3165 |     syn::TypeGenerics,
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr] 3166 |     Option<&syn::WhereClause>,
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stderr]      |
[INFO] [stderr]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 660 |     pub fn serde_path(&self) -> Cow<'_, syn::Path> {
[INFO] [stderr]     |                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn from_str(rename_all_str: &str) -> Result<Self, ParseError<'_>> {
[INFO] [stderr]    |                                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]     --> crates/serde_derive_next_impl/src/de.rs:3173:13
[INFO] [stderr]      |
[INFO] [stderr] 3173 |     params: &Parameters,
[INFO] [stderr]      |             ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stderr] 3174 | ) -> (
[INFO] [stderr] 3175 |     DeImplGenerics,
[INFO] [stderr]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr] 3176 |     DeTypeGenerics,
[INFO] [stderr]      |     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr] 3177 |     syn::TypeGenerics,
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr] 3178 |     Option<&syn::WhereClause>,
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stderr]      |
[INFO] [stderr]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]      |
[INFO] [stderr] 3175 ~     DeImplGenerics<'_>,
[INFO] [stderr] 3176 ~     DeTypeGenerics<'_>,
[INFO] [stderr] 3177 ~     syn::TypeGenerics<'_>,
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is 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 same lifetime is hidden here
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type 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 (run `cargo fix --lib -p serde_derive_impl` to apply 3 suggestions)
[INFO] [stderr] warning: `serde_derive_next_impl` (lib) generated 5 warnings (run `cargo fix --lib -p serde_derive_next_impl` to apply 4 suggestions)
[INFO] [stderr] warning: `serde_derive_impl` (lib) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: `serde_derive_next_impl` (lib) generated 5 warnings (5 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 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/bench/9a259a05ec31dd02/deps/bench-9a259a05ec31dd02)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/example/8294a58c76f75b1a/deps/example-8294a58c76f75b1a)
[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/build/serde_derive/c77c5bbe8b8770f3/deps/serde_derive-c77c5bbe8b8770f3)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/serde_derive_impl/2f1b3f1134bf95ed/deps/serde_derive_impl-2f1b3f1134bf95ed)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/serde_derive_next/a5850b7e1e66e2ab/deps/serde_derive_next-a5850b7e1e66e2ab)
[INFO] [stdout] test internals::case::rename_fields ... ok
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/serde_derive_next_impl/9cc1ed5fb15e1264/deps/serde_derive_next_impl-9cc1ed5fb15e1264)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_derive
[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] [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] 4 | 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 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `-p serde_derive_impl --doc`
[INFO] running `Command { std: "docker" "inspect" "1486fb7678366982761ff63540a7d7b4c5393c4d0bb93c476e44f6987e0cd343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1486fb7678366982761ff63540a7d7b4c5393c4d0bb93c476e44f6987e0cd343", kill_on_drop: false }`
[INFO] [stdout] 1486fb7678366982761ff63540a7d7b4c5393c4d0bb93c476e44f6987e0cd343
