[INFO] cloning repository https://github.com/KeisukeToyota/socket-programming
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KeisukeToyota/socket-programming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeisukeToyota%2Fsocket-programming", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeisukeToyota%2Fsocket-programming'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da2f5d734b8a9a4ddb2c8fb9308063cea07d11a4
[INFO] checking KeisukeToyota/socket-programming against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeisukeToyota%2Fsocket-programming" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KeisukeToyota/socket-programming on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KeisukeToyota/socket-programming
[INFO] finished tweaking git repo https://github.com/KeisukeToyota/socket-programming
[INFO] tweaked toml for git repo https://github.com/KeisukeToyota/socket-programming written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/KeisukeToyota/socket-programming already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31c4007ce3bb9f579bb3ba229adfb4e3cee4d5f276ccc187dff97680f32f5e8a
[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" "31c4007ce3bb9f579bb3ba229adfb4e3cee4d5f276ccc187dff97680f32f5e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31c4007ce3bb9f579bb3ba229adfb4e3cee4d5f276ccc187dff97680f32f5e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31c4007ce3bb9f579bb3ba229adfb4e3cee4d5f276ccc187dff97680f32f5e8a", kill_on_drop: false }`
[INFO] [stdout] 31c4007ce3bb9f579bb3ba229adfb4e3cee4d5f276ccc187dff97680f32f5e8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--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] 2e8abcf5d0465bb71a95c93f41641548e616e88a5979aee68fd26493a1e9e152
[INFO] running `Command { std: "docker" "start" "-a" "2e8abcf5d0465bb71a95c93f41641548e616e88a5979aee68fd26493a1e9e152", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking socket-programming v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.98s
[INFO] running `Command { std: "docker" "inspect" "2e8abcf5d0465bb71a95c93f41641548e616e88a5979aee68fd26493a1e9e152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e8abcf5d0465bb71a95c93f41641548e616e88a5979aee68fd26493a1e9e152", kill_on_drop: false }`
[INFO] [stdout] 2e8abcf5d0465bb71a95c93f41641548e616e88a5979aee68fd26493a1e9e152