[INFO] cloning repository https://github.com/unityoxb/rust-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/unityoxb/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funityoxb%2Frust-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funityoxb%2Frust-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50298478b00f0abfa1f96b997ee8b7939d519e67
[INFO] testing unityoxb/rust-learn against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funityoxb%2Frust-learn" "/workspace/builds/worker-69/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-69/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/unityoxb/rust-learn on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/unityoxb/rust-learn
[INFO] finished tweaking git repo https://github.com/unityoxb/rust-learn
[INFO] tweaked toml for git repo https://github.com/unityoxb/rust-learn written to /workspace/builds/worker-69/source/Cargo.toml
[INFO] crate git repo https://github.com/unityoxb/rust-learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c05bc77629f4b2dea3d05341f2cfbe0cd8ce323b8c8d4ea8f180fab31bb23f27
[INFO] running `Command { std: "docker" "start" "-a" "c05bc77629f4b2dea3d05341f2cfbe0cd8ce323b8c8d4ea8f180fab31bb23f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c05bc77629f4b2dea3d05341f2cfbe0cd8ce323b8c8d4ea8f180fab31bb23f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c05bc77629f4b2dea3d05341f2cfbe0cd8ce323b8c8d4ea8f180fab31bb23f27", kill_on_drop: false }`
[INFO] [stdout] c05bc77629f4b2dea3d05341f2cfbe0cd8ce323b8c8d4ea8f180fab31bb23f27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88c52829d747b691e5b7c8de2648bb708bd0cfb56a578da2259c5b705a15d834
[INFO] running `Command { std: "docker" "start" "-a" "88c52829d747b691e5b7c8de2648bb708bd0cfb56a578da2259c5b705a15d834", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcp-server-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "88c52829d747b691e5b7c8de2648bb708bd0cfb56a578da2259c5b705a15d834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88c52829d747b691e5b7c8de2648bb708bd0cfb56a578da2259c5b705a15d834", kill_on_drop: false }`
[INFO] [stdout] 88c52829d747b691e5b7c8de2648bb708bd0cfb56a578da2259c5b705a15d834
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48697c3a2ba3a084f5cec26e3f15681646082c1c7298393ba463bcdc5aa7b28b
[INFO] running `Command { std: "docker" "start" "-a" "48697c3a2ba3a084f5cec26e3f15681646082c1c7298393ba463bcdc5aa7b28b", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcp-server-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.84s
[INFO] [stderr]   Executable unittests src/client.rs (/opt/rustwide/target/debug/deps/client-5eecec698e8d364f)
[INFO] [stderr]   Executable unittests src/server.rs (/opt/rustwide/target/debug/deps/server-7b9eea07019b19b7)
[INFO] running `Command { std: "docker" "inspect" "48697c3a2ba3a084f5cec26e3f15681646082c1c7298393ba463bcdc5aa7b28b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48697c3a2ba3a084f5cec26e3f15681646082c1c7298393ba463bcdc5aa7b28b", kill_on_drop: false }`
[INFO] [stdout] 48697c3a2ba3a084f5cec26e3f15681646082c1c7298393ba463bcdc5aa7b28b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bf6b1b0f1a93ea5a7bc0da10a795ed4e84caa8b684d4c68d1259d94ea16a7efd
[INFO] running `Command { std: "docker" "start" "-a" "bf6b1b0f1a93ea5a7bc0da10a795ed4e84caa8b684d4c68d1259d94ea16a7efd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] [stderr]      Running unittests src/client.rs (/opt/rustwide/target/debug/deps/client-5eecec698e8d364f)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/server.rs (/opt/rustwide/target/debug/deps/server-7b9eea07019b19b7)
[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] [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" "bf6b1b0f1a93ea5a7bc0da10a795ed4e84caa8b684d4c68d1259d94ea16a7efd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf6b1b0f1a93ea5a7bc0da10a795ed4e84caa8b684d4c68d1259d94ea16a7efd", kill_on_drop: false }`
[INFO] [stdout] bf6b1b0f1a93ea5a7bc0da10a795ed4e84caa8b684d4c68d1259d94ea16a7efd