[INFO] fetching crate syn-helpers 0.5.0...
[INFO] building syn-helpers-0.5.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate syn-helpers 0.5.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate syn-helpers 0.5.0
[INFO] finished tweaking crates.io crate syn-helpers 0.5.0
[INFO] tweaked toml for crates.io crate syn-helpers 0.5.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate syn-helpers 0.5.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81d1f4ec11889e8956bfe705ee369b5cd1bd9fee0de6defbb3b7ec77dbb4244e
[INFO] running `Command { std: "docker" "start" "-a" "81d1f4ec11889e8956bfe705ee369b5cd1bd9fee0de6defbb3b7ec77dbb4244e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81d1f4ec11889e8956bfe705ee369b5cd1bd9fee0de6defbb3b7ec77dbb4244e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81d1f4ec11889e8956bfe705ee369b5cd1bd9fee0de6defbb3b7ec77dbb4244e", kill_on_drop: false }`
[INFO] [stdout] 81d1f4ec11889e8956bfe705ee369b5cd1bd9fee0de6defbb3b7ec77dbb4244e
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e10deb17505988f9e3dc0e87048b1706e2310f92f97326323b77f2111d97f11
[INFO] running `Command { std: "docker" "start" "-a" "9e10deb17505988f9e3dc0e87048b1706e2310f92f97326323b77f2111d97f11", kill_on_drop: false }`
[INFO] [stderr]    Compiling either_n v0.2.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling syn-helpers v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:340:86
[INFO] [stdout]     |
[INFO] [stdout] 340 |     pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator<Item = &'b Attribute> + '_ {
[INFO] [stdout]     |                                    --                                --              ^^ the same lifetime is elided here
[INFO] [stdout]     |                                    |                                 |
[INFO] [stdout]     |                                    the lifetime is named here        the same lifetime is named 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: consistently use `'b`
[INFO] [stdout]     |
[INFO] [stdout] 340 -     pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator<Item = &'b Attribute> + '_ {
[INFO] [stdout] 340 +     pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator<Item = &'b Attribute> + 'b {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/fields.rs:113:32
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn get_field_by_member(&self, member: syn::Member) -> Option<NamedOrUnnamedField> {
[INFO] [stdout]     |                                ^^^^^ the lifetime is elided here     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 113 |     pub fn get_field_by_member(&self, member: syn::Member) -> Option<NamedOrUnnamedField<'_>> {
[INFO] [stdout]     |                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/fields.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         &mut self,
[INFO] [stdout]     |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 141 |         member: syn::Member,
[INFO] [stdout] 142 |     ) -> Option<NamedOrUnnamedFieldMut> {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 142 |     ) -> Option<NamedOrUnnamedFieldMut<'_>> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.81s
[INFO] running `Command { std: "docker" "inspect" "9e10deb17505988f9e3dc0e87048b1706e2310f92f97326323b77f2111d97f11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e10deb17505988f9e3dc0e87048b1706e2310f92f97326323b77f2111d97f11", kill_on_drop: false }`
[INFO] [stdout] 9e10deb17505988f9e3dc0e87048b1706e2310f92f97326323b77f2111d97f11
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd31c61b9402b6f68bb44cb3c70f3f738177c9942dddfb106a0715d0015cb81e
[INFO] running `Command { std: "docker" "start" "-a" "bd31c61b9402b6f68bb44cb3c70f3f738177c9942dddfb106a0715d0015cb81e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn-helpers v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:340:86
[INFO] [stdout]     |
[INFO] [stdout] 340 |     pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator<Item = &'b Attribute> + '_ {
[INFO] [stdout]     |                                    --                                --              ^^ the same lifetime is elided here
[INFO] [stdout]     |                                    |                                 |
[INFO] [stdout]     |                                    the lifetime is named here        the same lifetime is named 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: consistently use `'b`
[INFO] [stdout]     |
[INFO] [stdout] 340 -     pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator<Item = &'b Attribute> + '_ {
[INFO] [stdout] 340 +     pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator<Item = &'b Attribute> + 'b {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/fields.rs:113:32
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn get_field_by_member(&self, member: syn::Member) -> Option<NamedOrUnnamedField> {
[INFO] [stdout]     |                                ^^^^^ the lifetime is elided here     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 113 |     pub fn get_field_by_member(&self, member: syn::Member) -> Option<NamedOrUnnamedField<'_>> {
[INFO] [stdout]     |                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/fields.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         &mut self,
[INFO] [stdout]     |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 141 |         member: syn::Member,
[INFO] [stdout] 142 |     ) -> Option<NamedOrUnnamedFieldMut> {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 142 |     ) -> Option<NamedOrUnnamedFieldMut<'_>> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/fields.rs:113:32
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn get_field_by_member(&self, member: syn::Member) -> Option<NamedOrUnnamedField> {
[INFO] [stdout]     |                                ^^^^^ the lifetime is elided here     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 113 |     pub fn get_field_by_member(&self, member: syn::Member) -> Option<NamedOrUnnamedField<'_>> {
[INFO] [stdout]     |                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/fields.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         &mut self,
[INFO] [stdout]     |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 141 |         member: syn::Member,
[INFO] [stdout] 142 |     ) -> Option<NamedOrUnnamedFieldMut> {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 142 |     ) -> Option<NamedOrUnnamedFieldMut<'_>> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:340:86
[INFO] [stdout]     |
[INFO] [stdout] 340 |     pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator<Item = &'b Attribute> + '_ {
[INFO] [stdout]     |                                    --                                --              ^^ the same lifetime is elided here
[INFO] [stdout]     |                                    |                                 |
[INFO] [stdout]     |                                    the lifetime is named here        the same lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'b`
[INFO] [stdout]     |
[INFO] [stdout] 340 -     pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator<Item = &'b Attribute> + '_ {
[INFO] [stdout] 340 +     pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator<Item = &'b Attribute> + 'b {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "bd31c61b9402b6f68bb44cb3c70f3f738177c9942dddfb106a0715d0015cb81e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd31c61b9402b6f68bb44cb3c70f3f738177c9942dddfb106a0715d0015cb81e", kill_on_drop: false }`
[INFO] [stdout] bd31c61b9402b6f68bb44cb3c70f3f738177c9942dddfb106a0715d0015cb81e
