[INFO] fetching crate feature-extension-for-smol 0.2.1...
[INFO] checking feature-extension-for-smol-0.2.1 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate feature-extension-for-smol 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate feature-extension-for-smol 0.2.1 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate feature-extension-for-smol 0.2.1
[INFO] finished tweaking crates.io crate feature-extension-for-smol 0.2.1
[INFO] tweaked toml for crates.io crate feature-extension-for-smol 0.2.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 58 packages to latest compatible versions
[INFO] [stderr]       Adding event-listener v4.0.3 (latest: v5.3.0)
[INFO] [stderr]       Adding event-listener-strategy v0.4.0 (latest: v0.5.2)
[INFO] [stderr]       Adding futures-channel v0.3.29 (latest: v0.3.30)
[INFO] [stderr]       Adding futures-macro v0.3.29 (latest: v0.3.30)
[INFO] [stderr]       Adding futures-util v0.3.29 (latest: v0.3.30)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (latest: v0.6.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b6e512309e99eb3e5f6a728a891b88ad48ada7b17a8a35a2ff8a80a09da8e01
[INFO] running `Command { std: "docker" "start" "-a" "5b6e512309e99eb3e5f6a728a891b88ad48ada7b17a8a35a2ff8a80a09da8e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b6e512309e99eb3e5f6a728a891b88ad48ada7b17a8a35a2ff8a80a09da8e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6e512309e99eb3e5f6a728a891b88ad48ada7b17a8a35a2ff8a80a09da8e01", kill_on_drop: false }`
[INFO] [stdout] 5b6e512309e99eb3e5f6a728a891b88ad48ada7b17a8a35a2ff8a80a09da8e01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a1d98be506bc38a1f174f2c926fb36996ac6b818b95a4d9e47d9a8538d67c3b
[INFO] running `Command { std: "docker" "start" "-a" "0a1d98be506bc38a1f174f2c926fb36996ac6b818b95a4d9e47d9a8538d67c3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking piper v0.2.2
[INFO] [stderr]     Checking futures-lite v2.3.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking event-listener v5.3.0
[INFO] [stderr]     Checking async-executor v1.12.0
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.2
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]     Checking async-channel v2.3.1
[INFO] [stderr]     Checking blocking v1.6.1
[INFO] [stderr]     Checking async-fs v2.1.2
[INFO] [stderr]     Checking polling v3.7.0
[INFO] [stderr]     Checking async-io v2.3.2
[INFO] [stderr]     Checking async-signal v0.2.6
[INFO] [stderr]     Checking async-net v2.0.0
[INFO] [stderr]     Checking async-process v2.2.2
[INFO] [stderr]     Checking smol v2.0.0
[INFO] [stderr]     Checking feature-extension-for-smol v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.43s
[INFO] running `Command { std: "docker" "inspect" "0a1d98be506bc38a1f174f2c926fb36996ac6b818b95a4d9e47d9a8538d67c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a1d98be506bc38a1f174f2c926fb36996ac6b818b95a4d9e47d9a8538d67c3b", kill_on_drop: false }`
[INFO] [stdout] 0a1d98be506bc38a1f174f2c926fb36996ac6b818b95a4d9e47d9a8538d67c3b