[INFO] fetching crate syn-helpers 0.5.0...
[INFO] checking syn-helpers-0.5.0 against try#0c7fed2b7584d310ca8221267fa1b3bec4df427f for pr-133502-4
[INFO] extracting crate syn-helpers 0.5.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate syn-helpers 0.5.0 on toolchain 0c7fed2b7584d310ca8221267fa1b3bec4df427f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "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-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "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" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2a0217b7509f8807d92784dc92dd9c7a6041043ff500c842102714fe40a2d6f
[INFO] running `Command { std: "docker" "start" "-a" "a2a0217b7509f8807d92784dc92dd9c7a6041043ff500c842102714fe40a2d6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2a0217b7509f8807d92784dc92dd9c7a6041043ff500c842102714fe40a2d6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2a0217b7509f8807d92784dc92dd9c7a6041043ff500c842102714fe40a2d6f", kill_on_drop: false }`
[INFO] [stdout] a2a0217b7509f8807d92784dc92dd9c7a6041043ff500c842102714fe40a2d6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3870e5764b23d1be31dde584df0da2ef396d79cf238567c63e6d7b364604fa68
[INFO] running `Command { std: "docker" "start" "-a" "3870e5764b23d1be31dde584df0da2ef396d79cf238567c63e6d7b364604fa68", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking either_n v0.2.0
[INFO] [stderr]     Checking quote v1.0.40
[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 8.30s
[INFO] running `Command { std: "docker" "inspect" "3870e5764b23d1be31dde584df0da2ef396d79cf238567c63e6d7b364604fa68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3870e5764b23d1be31dde584df0da2ef396d79cf238567c63e6d7b364604fa68", kill_on_drop: false }`
[INFO] [stdout] 3870e5764b23d1be31dde584df0da2ef396d79cf238567c63e6d7b364604fa68