[INFO] fetching crate test-helpers-async 0.2.3...
[INFO] checking test-helpers-async-0.2.3 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate test-helpers-async 0.2.3 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate test-helpers-async 0.2.3
[INFO] finished tweaking crates.io crate test-helpers-async 0.2.3
[INFO] tweaked toml for crates.io crate test-helpers-async 0.2.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate test-helpers-async 0.2.3 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "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 15 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.117)
[INFO] [stderr]       Adding test-case v2.2.2 (available: v3.3.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded test-case-macros v2.2.2
[INFO] [stderr]   Downloaded test-case v2.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fcbda75c5ecb7d6b56fb39b48e36e919da8531b60abd6c61ea91d39613d74130
[INFO] running `Command { std: "docker" "start" "-a" "fcbda75c5ecb7d6b56fb39b48e36e919da8531b60abd6c61ea91d39613d74130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcbda75c5ecb7d6b56fb39b48e36e919da8531b60abd6c61ea91d39613d74130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcbda75c5ecb7d6b56fb39b48e36e919da8531b60abd6c61ea91d39613d74130", kill_on_drop: false }`
[INFO] [stdout] fcbda75c5ecb7d6b56fb39b48e36e919da8531b60abd6c61ea91d39613d74130
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27ecacc49af3b9ca0ea08a2d1d28ffb90117d037c0ae4ce0be079fb1b230513c
[INFO] running `Command { std: "docker" "start" "-a" "27ecacc49af3b9ca0ea08a2d1d28ffb90117d037c0ae4ce0be079fb1b230513c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-ident v1.0.24
[INFO] [stderr]     Checking pin-project-lite v0.2.17
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking quote v1.0.45
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking test-helpers-async v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `resume`
[INFO] [stdout]    --> src/lib.rs:119:17
[INFO] [stdout]     |
[INFO] [stdout] 119 |             let resume: Stmt = parse_quote! {
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_resume`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio-macros v2.6.1
[INFO] [stderr]     Checking tokio v1.50.0
[INFO] [stderr]    Compiling test-case-macros v2.2.2
[INFO] [stderr]     Checking test-case v2.2.2
[INFO] [stdout] warning: unused variable: `resume`
[INFO] [stdout]    --> src/lib.rs:119:17
[INFO] [stdout]     |
[INFO] [stdout] 119 |             let resume: Stmt = parse_quote! {
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_resume`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.27s
[INFO] running `Command { std: "docker" "inspect" "27ecacc49af3b9ca0ea08a2d1d28ffb90117d037c0ae4ce0be079fb1b230513c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ecacc49af3b9ca0ea08a2d1d28ffb90117d037c0ae4ce0be079fb1b230513c", kill_on_drop: false }`
[INFO] [stdout] 27ecacc49af3b9ca0ea08a2d1d28ffb90117d037c0ae4ce0be079fb1b230513c