[INFO] cloning repository https://github.com/Journeycorner/tokio-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Journeycorner/tokio-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJourneycorner%2Ftokio-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJourneycorner%2Ftokio-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75264ade9855b48f7b527a0642dfdb701458b2ac
[INFO] testing Journeycorner/tokio-playground against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJourneycorner%2Ftokio-playground" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Journeycorner/tokio-playground on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Journeycorner/tokio-playground
[INFO] finished tweaking git repo https://github.com/Journeycorner/tokio-playground
[INFO] tweaked toml for git repo https://github.com/Journeycorner/tokio-playground written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Journeycorner/tokio-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 004136a692c2c840b2a3551671d451870409dafdc4ff4ff9dc6d270416f8e5a1
[INFO] running `Command { std: "docker" "start" "-a" "004136a692c2c840b2a3551671d451870409dafdc4ff4ff9dc6d270416f8e5a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "004136a692c2c840b2a3551671d451870409dafdc4ff4ff9dc6d270416f8e5a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "004136a692c2c840b2a3551671d451870409dafdc4ff4ff9dc6d270416f8e5a1", kill_on_drop: false }`
[INFO] [stdout] 004136a692c2c840b2a3551671d451870409dafdc4ff4ff9dc6d270416f8e5a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 510ad7080c113efc642173d0458428a7611d643b389722eea8a2ede785aed9aa
[INFO] running `Command { std: "docker" "start" "-a" "510ad7080c113efc642173d0458428a7611d643b389722eea8a2ede785aed9aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.1.24
[INFO] [stderr]    Compiling tokio-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.32s
[INFO] running `Command { std: "docker" "inspect" "510ad7080c113efc642173d0458428a7611d643b389722eea8a2ede785aed9aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "510ad7080c113efc642173d0458428a7611d643b389722eea8a2ede785aed9aa", kill_on_drop: false }`
[INFO] [stdout] 510ad7080c113efc642173d0458428a7611d643b389722eea8a2ede785aed9aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 530cc5abef419865e7fcdf9e1db44d57497546c6997d05d169a9bb8ddc885e08
[INFO] running `Command { std: "docker" "start" "-a" "530cc5abef419865e7fcdf9e1db44d57497546c6997d05d169a9bb8ddc885e08", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "530cc5abef419865e7fcdf9e1db44d57497546c6997d05d169a9bb8ddc885e08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "530cc5abef419865e7fcdf9e1db44d57497546c6997d05d169a9bb8ddc885e08", kill_on_drop: false }`
[INFO] [stdout] 530cc5abef419865e7fcdf9e1db44d57497546c6997d05d169a9bb8ddc885e08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b63e7426d089bfd1c7b08a9798e391e3c45ad3122b3af87b79582afa47afc9f8
[INFO] running `Command { std: "docker" "start" "-a" "b63e7426d089bfd1c7b08a9798e391e3c45ad3122b3af87b79582afa47afc9f8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tokio_playground-bdef34658ed5ecf1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b63e7426d089bfd1c7b08a9798e391e3c45ad3122b3af87b79582afa47afc9f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b63e7426d089bfd1c7b08a9798e391e3c45ad3122b3af87b79582afa47afc9f8", kill_on_drop: false }`
[INFO] [stdout] b63e7426d089bfd1c7b08a9798e391e3c45ad3122b3af87b79582afa47afc9f8