[INFO] fetching crate syn-helpers 0.5.0...
[INFO] building syn-helpers-0.5.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate syn-helpers 0.5.0 into /workspace/builds/worker-2-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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate syn-helpers 0.5.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a60c342746bf771203c930d6f8c82f2c72734fe4817dcb0ffcb1e65d76ae57f5
[INFO] running `Command { std: "docker" "start" "-a" "a60c342746bf771203c930d6f8c82f2c72734fe4817dcb0ffcb1e65d76ae57f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a60c342746bf771203c930d6f8c82f2c72734fe4817dcb0ffcb1e65d76ae57f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a60c342746bf771203c930d6f8c82f2c72734fe4817dcb0ffcb1e65d76ae57f5", kill_on_drop: false }`
[INFO] [stdout] a60c342746bf771203c930d6f8c82f2c72734fe4817dcb0ffcb1e65d76ae57f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7e81232a4294500d46e4f811496ba8725d2f59084698fb92a2af99f36668eaf
[INFO] running `Command { std: "docker" "start" "-a" "c7e81232a4294500d46e4f811496ba8725d2f59084698fb92a2af99f36668eaf", 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: 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 `dev` profile [unoptimized + debuginfo] target(s) in 4.27s
[INFO] running `Command { std: "docker" "inspect" "c7e81232a4294500d46e4f811496ba8725d2f59084698fb92a2af99f36668eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7e81232a4294500d46e4f811496ba8725d2f59084698fb92a2af99f36668eaf", kill_on_drop: false }`
[INFO] [stdout] c7e81232a4294500d46e4f811496ba8725d2f59084698fb92a2af99f36668eaf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70059ac341ebb8e8c785e7e77de74d911512c499b9649b4119abf1758723a221
[INFO] running `Command { std: "docker" "start" "-a" "70059ac341ebb8e8c785e7e77de74d911512c499b9649b4119abf1758723a221", kill_on_drop: false }`
[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]    Compiling syn-helpers v0.5.0 (/opt/rustwide/workdir)
[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 0.90s
[INFO] running `Command { std: "docker" "inspect" "70059ac341ebb8e8c785e7e77de74d911512c499b9649b4119abf1758723a221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70059ac341ebb8e8c785e7e77de74d911512c499b9649b4119abf1758723a221", kill_on_drop: false }`
[INFO] [stdout] 70059ac341ebb8e8c785e7e77de74d911512c499b9649b4119abf1758723a221
