[INFO] fetching crate syn-helpers 0.5.0...
[INFO] checking syn-helpers-0.5.0 against try#1d0e7c032bf9b905a3165592072b5cc63c491d50 for pr-133502-5
[INFO] extracting crate syn-helpers 0.5.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate syn-helpers 0.5.0 on toolchain 1d0e7c032bf9b905a3165592072b5cc63c491d50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "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]     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" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53ed550db08ccb5304d6f6b29f18f9e052815e0177a922186f02233ab0098f20
[INFO] running `Command { std: "docker" "start" "-a" "53ed550db08ccb5304d6f6b29f18f9e052815e0177a922186f02233ab0098f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53ed550db08ccb5304d6f6b29f18f9e052815e0177a922186f02233ab0098f20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53ed550db08ccb5304d6f6b29f18f9e052815e0177a922186f02233ab0098f20", kill_on_drop: false }`
[INFO] [stdout] 53ed550db08ccb5304d6f6b29f18f9e052815e0177a922186f02233ab0098f20
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d6e61c3eeabf81f0d143a7f1a942a5f05f9b2ff750b85ef87d7e6659ffad80d
[INFO] running `Command { std: "docker" "start" "-a" "4d6e61c3eeabf81f0d143a7f1a942a5f05f9b2ff750b85ef87d7e6659ffad80d", kill_on_drop: false }`
[INFO] [stderr]     Checking either_n v0.2.0
[INFO] [stderr]     Checking syn v2.0.100
[INFO] [stderr]     Checking syn-helpers v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[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]     |                           -- lifetime `'b` declared here                             ^^ this elided lifetime gets resolved as `'b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[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]     |                           -- lifetime `'b` declared here                             ^^ this elided lifetime gets resolved as `'b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.54s
[INFO] running `Command { std: "docker" "inspect" "4d6e61c3eeabf81f0d143a7f1a942a5f05f9b2ff750b85ef87d7e6659ffad80d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d6e61c3eeabf81f0d143a7f1a942a5f05f9b2ff750b85ef87d7e6659ffad80d", kill_on_drop: false }`
[INFO] [stdout] 4d6e61c3eeabf81f0d143a7f1a942a5f05f9b2ff750b85ef87d7e6659ffad80d