[INFO] cloning repository https://github.com/CjS77/tokio-async-await-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CjS77/tokio-async-await-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCjS77%2Ftokio-async-await-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCjS77%2Ftokio-async-await-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e2ab5bbbe33835d7cace7014f2b1e3cc9c27fdf
[INFO] checking CjS77/tokio-async-await-examples against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCjS77%2Ftokio-async-await-examples" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CjS77/tokio-async-await-examples on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CjS77/tokio-async-await-examples
[INFO] finished tweaking git repo https://github.com/CjS77/tokio-async-await-examples
[INFO] tweaked toml for git repo https://github.com/CjS77/tokio-async-await-examples written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/CjS77/tokio-async-await-examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63178097297ece087fec2bf20dbda2bbb702978b64b3e94a6e5a960ad8cfe496
[INFO] running `Command { std: "docker" "start" "-a" "63178097297ece087fec2bf20dbda2bbb702978b64b3e94a6e5a960ad8cfe496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63178097297ece087fec2bf20dbda2bbb702978b64b3e94a6e5a960ad8cfe496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63178097297ece087fec2bf20dbda2bbb702978b64b3e94a6e5a960ad8cfe496", kill_on_drop: false }`
[INFO] [stdout] 63178097297ece087fec2bf20dbda2bbb702978b64b3e94a6e5a960ad8cfe496
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44b0d9de37c0ab3e63bc5794bb2aec9f16406d66b345e9aadb01fd6431d31be4
[INFO] running `Command { std: "docker" "start" "-a" "44b0d9de37c0ab3e63bc5794bb2aec9f16406d66b345e9aadb01fd6431d31be4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.18
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[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.18
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[INFO] [stderr]    Compiling arrayvec v0.4.11
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[INFO] [stderr]    Compiling memoffset v0.5.1
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[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.18
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[INFO] [stderr]     Checking tokio v0.2.0-alpha.4
[INFO] [stderr]     Checking async-await v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.68s
[INFO] running `Command { std: "docker" "inspect" "44b0d9de37c0ab3e63bc5794bb2aec9f16406d66b345e9aadb01fd6431d31be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44b0d9de37c0ab3e63bc5794bb2aec9f16406d66b345e9aadb01fd6431d31be4", kill_on_drop: false }`
[INFO] [stdout] 44b0d9de37c0ab3e63bc5794bb2aec9f16406d66b345e9aadb01fd6431d31be4