[INFO] fetching crate async-yield 0.1.0...
[INFO] checking async-yield-0.1.0 against try#169954edd744527414c631e9af1bbdc537b0cdf2 for pr-75192
[INFO] extracting crate async-yield 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate async-yield 0.1.0 on toolchain 169954edd744527414c631e9af1bbdc537b0cdf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-yield 0.1.0
[INFO] finished tweaking crates.io crate async-yield 0.1.0
[INFO] tweaked toml for crates.io crate async-yield 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate async-yield 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1dea38e6c42cbbe0b7345fbbadb510c5b28ccf0b6f0d1b6255f4d73e05857003
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1dea38e6c42cbbe0b7345fbbadb510c5b28ccf0b6f0d1b6255f4d73e05857003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dea38e6c42cbbe0b7345fbbadb510c5b28ccf0b6f0d1b6255f4d73e05857003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dea38e6c42cbbe0b7345fbbadb510c5b28ccf0b6f0d1b6255f4d73e05857003", kill_on_drop: false }`
[INFO] [stdout] 1dea38e6c42cbbe0b7345fbbadb510c5b28ccf0b6f0d1b6255f4d73e05857003
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+169954edd744527414c631e9af1bbdc537b0cdf2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18d6d683f3abbd1679027717888af0b92d767c4d700713dea6f2e5d0c6a6e031
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "18d6d683f3abbd1679027717888af0b92d767c4d700713dea6f2e5d0c6a6e031", kill_on_drop: false }`
[INFO] [stderr]     Checking async-yield v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "18d6d683f3abbd1679027717888af0b92d767c4d700713dea6f2e5d0c6a6e031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18d6d683f3abbd1679027717888af0b92d767c4d700713dea6f2e5d0c6a6e031", kill_on_drop: false }`
[INFO] [stdout] 18d6d683f3abbd1679027717888af0b92d767c4d700713dea6f2e5d0c6a6e031