[INFO] cloning repository https://github.com/u2rust/tcp_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/u2rust/tcp_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu2rust%2Ftcp_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu2rust%2Ftcp_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28b0365f00c7a7a29df812d2982aa18d54e06a56
[INFO] testing u2rust/tcp_demo 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%2Fu2rust%2Ftcp_demo" "/workspace/builds/worker-105/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-105/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/u2rust/tcp_demo 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/u2rust/tcp_demo
[INFO] finished tweaking git repo https://github.com/u2rust/tcp_demo
[INFO] tweaked toml for git repo https://github.com/u2rust/tcp_demo written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] crate git repo https://github.com/u2rust/tcp_demo 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-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 9b5f3f6f135cef6ee3c935bd90fe67c8b7dbcb209340a6724be27430db9b5b91
[INFO] running `Command { std: "docker" "start" "-a" "9b5f3f6f135cef6ee3c935bd90fe67c8b7dbcb209340a6724be27430db9b5b91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b5f3f6f135cef6ee3c935bd90fe67c8b7dbcb209340a6724be27430db9b5b91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b5f3f6f135cef6ee3c935bd90fe67c8b7dbcb209340a6724be27430db9b5b91", kill_on_drop: false }`
[INFO] [stdout] 9b5f3f6f135cef6ee3c935bd90fe67c8b7dbcb209340a6724be27430db9b5b91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 6f6507fd4ff2b5ef9e0bf00b0eb31a08fec2a114833494160664291d93901fd0
[INFO] running `Command { std: "docker" "start" "-a" "6f6507fd4ff2b5ef9e0bf00b0eb31a08fec2a114833494160664291d93901fd0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tcp_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "6f6507fd4ff2b5ef9e0bf00b0eb31a08fec2a114833494160664291d93901fd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f6507fd4ff2b5ef9e0bf00b0eb31a08fec2a114833494160664291d93901fd0", kill_on_drop: false }`
[INFO] [stdout] 6f6507fd4ff2b5ef9e0bf00b0eb31a08fec2a114833494160664291d93901fd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 3fb60844ac2955dc57b81f1f9bf96e6cafe8323eeb202b783ca87dfaf7108646
[INFO] running `Command { std: "docker" "start" "-a" "3fb60844ac2955dc57b81f1f9bf96e6cafe8323eeb202b783ca87dfaf7108646", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcp_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/tcp_demo-28a5585c625a0622)
[INFO] running `Command { std: "docker" "inspect" "3fb60844ac2955dc57b81f1f9bf96e6cafe8323eeb202b783ca87dfaf7108646", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fb60844ac2955dc57b81f1f9bf96e6cafe8323eeb202b783ca87dfaf7108646", kill_on_drop: false }`
[INFO] [stdout] 3fb60844ac2955dc57b81f1f9bf96e6cafe8323eeb202b783ca87dfaf7108646
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] f9646d5524c3d5837377f13678bf43a578ddba97059b62763486ddf625357b00
[INFO] running `Command { std: "docker" "start" "-a" "f9646d5524c3d5837377f13678bf43a578ddba97059b62763486ddf625357b00", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.66s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tcp_demo-28a5585c625a0622)
[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" "f9646d5524c3d5837377f13678bf43a578ddba97059b62763486ddf625357b00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9646d5524c3d5837377f13678bf43a578ddba97059b62763486ddf625357b00", kill_on_drop: false }`
[INFO] [stdout] f9646d5524c3d5837377f13678bf43a578ddba97059b62763486ddf625357b00