[INFO] fetching crate pi_async_macro 0.2.3...
[INFO] building pi_async_macro-0.2.3 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate pi_async_macro 0.2.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate pi_async_macro 0.2.3
[INFO] finished tweaking crates.io crate pi_async_macro 0.2.3
[INFO] tweaked toml for crates.io crate pi_async_macro 0.2.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pi_async_macro 0.2.3 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] crate crates.io crate pi_async_macro 0.2.3 already has a lockfile, it will not be regenerated
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 28fa68ecd7f00f9e6d81b9e868e7a3ee4de326d09aa9b00548da93ebaa36b3a0
[INFO] running `Command { std: "docker" "start" "-a" "28fa68ecd7f00f9e6d81b9e868e7a3ee4de326d09aa9b00548da93ebaa36b3a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28fa68ecd7f00f9e6d81b9e868e7a3ee4de326d09aa9b00548da93ebaa36b3a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28fa68ecd7f00f9e6d81b9e868e7a3ee4de326d09aa9b00548da93ebaa36b3a0", kill_on_drop: false }`
[INFO] [stdout] 28fa68ecd7f00f9e6d81b9e868e7a3ee4de326d09aa9b00548da93ebaa36b3a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 39fc01667a93d28cab9e19cfceea4195a4c5abd87c9ea126a99f2da78183b127
[INFO] running `Command { std: "docker" "start" "-a" "39fc01667a93d28cab9e19cfceea4195a4c5abd87c9ea126a99f2da78183b127", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling pi_async_macro v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pool_type`
[INFO] [stdout]    --> src/lib.rs:338:25
[INFO] [stdout]     |
[INFO] [stdout] 338 |             if let Some(pool_type) = pool_type {
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pool_type`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pool_type`
[INFO] [stdout]    --> src/lib.rs:399:25
[INFO] [stdout]     |
[INFO] [stdout] 399 |             if let Some(pool_type) = pool_type {
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pool_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.36s
[INFO] running `Command { std: "docker" "inspect" "39fc01667a93d28cab9e19cfceea4195a4c5abd87c9ea126a99f2da78183b127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39fc01667a93d28cab9e19cfceea4195a4c5abd87c9ea126a99f2da78183b127", kill_on_drop: false }`
[INFO] [stdout] 39fc01667a93d28cab9e19cfceea4195a4c5abd87c9ea126a99f2da78183b127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4e1a4e25e6b4b33d7fc88af1a9f2f03c6351717481bde01650235e0e96048b13
[INFO] running `Command { std: "docker" "start" "-a" "4e1a4e25e6b4b33d7fc88af1a9f2f03c6351717481bde01650235e0e96048b13", kill_on_drop: false }`
[INFO] [stderr]    Compiling pi_async_macro v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pool_type`
[INFO] [stdout]    --> src/lib.rs:338:25
[INFO] [stdout]     |
[INFO] [stdout] 338 |             if let Some(pool_type) = pool_type {
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pool_type`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pool_type`
[INFO] [stdout]    --> src/lib.rs:399:25
[INFO] [stdout]     |
[INFO] [stdout] 399 |             if let Some(pool_type) = pool_type {
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pool_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pool_type`
[INFO] [stdout]    --> src/lib.rs:338:25
[INFO] [stdout]     |
[INFO] [stdout] 338 |             if let Some(pool_type) = pool_type {
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pool_type`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pool_type`
[INFO] [stdout]    --> src/lib.rs:399:25
[INFO] [stdout]     |
[INFO] [stdout] 399 |             if let Some(pool_type) = pool_type {
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pool_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "4e1a4e25e6b4b33d7fc88af1a9f2f03c6351717481bde01650235e0e96048b13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e1a4e25e6b4b33d7fc88af1a9f2f03c6351717481bde01650235e0e96048b13", kill_on_drop: false }`
[INFO] [stdout] 4e1a4e25e6b4b33d7fc88af1a9f2f03c6351717481bde01650235e0e96048b13