[INFO] fetching crate syn-helpers 0.5.0... [INFO] checking syn-helpers-0.5.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate syn-helpers 0.5.0 into /workspace/builds/worker-4-tc1/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-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate syn-helpers 0.5.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 020f182d96a0ed31612fbcc7d9d0e188756be0fdd5a265180ea1c6859faa81c4 [INFO] running `Command { std: "docker" "start" "-a" "020f182d96a0ed31612fbcc7d9d0e188756be0fdd5a265180ea1c6859faa81c4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "020f182d96a0ed31612fbcc7d9d0e188756be0fdd5a265180ea1c6859faa81c4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "020f182d96a0ed31612fbcc7d9d0e188756be0fdd5a265180ea1c6859faa81c4", kill_on_drop: false }` [INFO] [stdout] 020f182d96a0ed31612fbcc7d9d0e188756be0fdd5a265180ea1c6859faa81c4 [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" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] aad666b7ee319dc555e80942e6d9f668bfa1c359b5b98bd87573e502c7726d5f [INFO] running `Command { std: "docker" "start" "-a" "aad666b7ee319dc555e80942e6d9f668bfa1c359b5b98bd87573e502c7726d5f", kill_on_drop: false }` [INFO] [stderr] Checking either_n v0.2.0 [INFO] [stderr] Checking quote v1.0.40 [INFO] [stderr] Checking syn v2.0.104 [INFO] [stderr] Checking syn-helpers v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:340:36 [INFO] [stdout] | [INFO] [stdout] 340 | pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator + '_ { [INFO] [stdout] | ^^ -- -- the lifetimes get resolved as `'b` [INFO] [stdout] | | | [INFO] [stdout] | | the lifetimes get resolved as `'b` [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 consistently use `'b` [INFO] [stdout] | [INFO] [stdout] 340 - pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator + '_ { [INFO] [stdout] 340 + pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator + 'b { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/fields.rs:113:32 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn get_field_by_member(&self, member: syn::Member) -> Option { [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] 113 | pub fn get_field_by_member(&self, member: syn::Member) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/fields.rs:140:9 [INFO] [stdout] | [INFO] [stdout] 140 | &mut self, [INFO] [stdout] | ^^^^^^^^^ this lifetime flows to the output [INFO] [stdout] 141 | member: syn::Member, [INFO] [stdout] 142 | ) -> Option { [INFO] [stdout] | ---------------------- the lifetime gets 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] 142 | ) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:340:36 [INFO] [stdout] | [INFO] [stdout] 340 | pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator + '_ { [INFO] [stdout] | ^^ -- -- the lifetimes get resolved as `'b` [INFO] [stdout] | | | [INFO] [stdout] | | the lifetimes get resolved as `'b` [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 consistently use `'b` [INFO] [stdout] | [INFO] [stdout] 340 - pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator + '_ { [INFO] [stdout] 340 + pub fn all_attributes<'b: 'a>(&'b self) -> impl Iterator + 'b { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/fields.rs:113:32 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn get_field_by_member(&self, member: syn::Member) -> Option { [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] 113 | pub fn get_field_by_member(&self, member: syn::Member) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/fields.rs:140:9 [INFO] [stdout] | [INFO] [stdout] 140 | &mut self, [INFO] [stdout] | ^^^^^^^^^ this lifetime flows to the output [INFO] [stdout] 141 | member: syn::Member, [INFO] [stdout] 142 | ) -> Option { [INFO] [stdout] | ---------------------- the lifetime gets 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] 142 | ) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.66s [INFO] running `Command { std: "docker" "inspect" "aad666b7ee319dc555e80942e6d9f668bfa1c359b5b98bd87573e502c7726d5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aad666b7ee319dc555e80942e6d9f668bfa1c359b5b98bd87573e502c7726d5f", kill_on_drop: false }` [INFO] [stdout] aad666b7ee319dc555e80942e6d9f668bfa1c359b5b98bd87573e502c7726d5f