[INFO] cloning repository https://github.com/fildaw/socket_client_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fildaw/socket_client_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffildaw%2Fsocket_client_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffildaw%2Fsocket_client_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24de18bbf903792eab9b3cd1bdcb87d374d97d0f
[INFO] checking fildaw/socket_client_rust against try#b2fb67b8b6007ced9ad3f3b752a6fec899e7859c for pr-138915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffildaw%2Fsocket_client_rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fildaw/socket_client_rust on toolchain b2fb67b8b6007ced9ad3f3b752a6fec899e7859c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fildaw/socket_client_rust
[INFO] finished tweaking git repo https://github.com/fildaw/socket_client_rust
[INFO] tweaked toml for git repo https://github.com/fildaw/socket_client_rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/fildaw/socket_client_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d32de1d1d8311a254f02dd279ad503769acdcd0af9a6c965d87bb073fe226777
[INFO] running `Command { std: "docker" "start" "-a" "d32de1d1d8311a254f02dd279ad503769acdcd0af9a6c965d87bb073fe226777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d32de1d1d8311a254f02dd279ad503769acdcd0af9a6c965d87bb073fe226777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d32de1d1d8311a254f02dd279ad503769acdcd0af9a6c965d87bb073fe226777", kill_on_drop: false }`
[INFO] [stdout] d32de1d1d8311a254f02dd279ad503769acdcd0af9a6c965d87bb073fe226777
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d22b2cc335b7a5e243f8184fbd634a32a6ea0b77da7eb4244c62716d7f4ff6ac
[INFO] running `Command { std: "docker" "start" "-a" "d22b2cc335b7a5e243f8184fbd634a32a6ea0b77da7eb4244c62716d7f4ff6ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking socket_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `EndStreamError` is never constructed
[INFO] [stdout]   --> src/main_all_poll.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct EndStreamError;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EndStreamError` is never constructed
[INFO] [stdout]   --> src/main_all_poll.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct EndStreamError;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "d22b2cc335b7a5e243f8184fbd634a32a6ea0b77da7eb4244c62716d7f4ff6ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d22b2cc335b7a5e243f8184fbd634a32a6ea0b77da7eb4244c62716d7f4ff6ac", kill_on_drop: false }`
[INFO] [stdout] d22b2cc335b7a5e243f8184fbd634a32a6ea0b77da7eb4244c62716d7f4ff6ac