[INFO] cloning repository https://github.com/kerwin-cn/rust_tcp_server_substrate_unit_3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kerwin-cn/rust_tcp_server_substrate_unit_3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkerwin-cn%2Frust_tcp_server_substrate_unit_3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkerwin-cn%2Frust_tcp_server_substrate_unit_3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 595def1ea708c8dc0eca396602b719b3713aab3c
[INFO] testing kerwin-cn/rust_tcp_server_substrate_unit_3 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkerwin-cn%2Frust_tcp_server_substrate_unit_3" "/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/kerwin-cn/rust_tcp_server_substrate_unit_3 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kerwin-cn/rust_tcp_server_substrate_unit_3
[INFO] finished tweaking git repo https://github.com/kerwin-cn/rust_tcp_server_substrate_unit_3
[INFO] tweaked toml for git repo https://github.com/kerwin-cn/rust_tcp_server_substrate_unit_3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/kerwin-cn/rust_tcp_server_substrate_unit_3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 275f919ebceb84eea38e403f1bdcad0e0fa2cd605b9b7cd9f6f16d00fb4ed33c
[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" "275f919ebceb84eea38e403f1bdcad0e0fa2cd605b9b7cd9f6f16d00fb4ed33c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "275f919ebceb84eea38e403f1bdcad0e0fa2cd605b9b7cd9f6f16d00fb4ed33c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "275f919ebceb84eea38e403f1bdcad0e0fa2cd605b9b7cd9f6f16d00fb4ed33c", kill_on_drop: false }`
[INFO] [stdout] 275f919ebceb84eea38e403f1bdcad0e0fa2cd605b9b7cd9f6f16d00fb4ed33c
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f4f13df7c9d2fa16733120be10328211402eaea4a0bce5a97c8dd9627d50f93
[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" "5f4f13df7c9d2fa16733120be10328211402eaea4a0bce5a97c8dd9627d50f93", kill_on_drop: false }`
[INFO] [stderr]    Compiling sample_tcp_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "5f4f13df7c9d2fa16733120be10328211402eaea4a0bce5a97c8dd9627d50f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4f13df7c9d2fa16733120be10328211402eaea4a0bce5a97c8dd9627d50f93", kill_on_drop: false }`
[INFO] [stdout] 5f4f13df7c9d2fa16733120be10328211402eaea4a0bce5a97c8dd9627d50f93
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1732c0e528807f02419c64ed6983913b060c6390b45f8dcf368915faf6bd6109
[INFO] running `Command { std: "docker" "start" "-a" "1732c0e528807f02419c64ed6983913b060c6390b45f8dcf368915faf6bd6109", kill_on_drop: false }`
[INFO] [stderr]    Compiling sample_tcp_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "1732c0e528807f02419c64ed6983913b060c6390b45f8dcf368915faf6bd6109", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1732c0e528807f02419c64ed6983913b060c6390b45f8dcf368915faf6bd6109", kill_on_drop: false }`
[INFO] [stdout] 1732c0e528807f02419c64ed6983913b060c6390b45f8dcf368915faf6bd6109
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8f3f61da77a7aa7d9b919803d619d42f9b0e9cc0681b8a1c4d4cdd4ddc060e80
[INFO] running `Command { std: "docker" "start" "-a" "8f3f61da77a7aa7d9b919803d619d42f9b0e9cc0681b8a1c4d4cdd4ddc060e80", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sample_tcp_server-7329a432cbf1f6ba)
[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" "8f3f61da77a7aa7d9b919803d619d42f9b0e9cc0681b8a1c4d4cdd4ddc060e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f3f61da77a7aa7d9b919803d619d42f9b0e9cc0681b8a1c4d4cdd4ddc060e80", kill_on_drop: false }`
[INFO] [stdout] 8f3f61da77a7aa7d9b919803d619d42f9b0e9cc0681b8a1c4d4cdd4ddc060e80