[INFO] cloning repository https://github.com/stuartthompson/rusttcpserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stuartthompson/rusttcpserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstuartthompson%2Frusttcpserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstuartthompson%2Frusttcpserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4c2189b540b4acbcff0693e7833e2de4a23c7d2
[INFO] checking stuartthompson/rusttcpserver against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstuartthompson%2Frusttcpserver" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stuartthompson/rusttcpserver on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stuartthompson/rusttcpserver
[INFO] finished tweaking git repo https://github.com/stuartthompson/rusttcpserver
[INFO] tweaked toml for git repo https://github.com/stuartthompson/rusttcpserver written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/stuartthompson/rusttcpserver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ordered-float v2.1.1
[INFO] [stderr]   Downloaded arc-swap v0.4.8
[INFO] [stderr]   Downloaded thread-id v3.3.0
[INFO] [stderr]   Downloaded log4rs v1.0.0
[INFO] [stderr]   Downloaded log-mdc v0.1.0
[INFO] [stderr]   Downloaded serde-value v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb423302b0cad117ba3ead19307bf837bb6645809c198ce90cf62396379fc2dd
[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" "fb423302b0cad117ba3ead19307bf837bb6645809c198ce90cf62396379fc2dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb423302b0cad117ba3ead19307bf837bb6645809c198ce90cf62396379fc2dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb423302b0cad117ba3ead19307bf837bb6645809c198ce90cf62396379fc2dd", kill_on_drop: false }`
[INFO] [stdout] fb423302b0cad117ba3ead19307bf837bb6645809c198ce90cf62396379fc2dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] fdd5620c4e32c14d000ca5154a2d5906d999170a41fbf0875bf8ce26fb7b2494
[INFO] running `Command { std: "docker" "start" "-a" "fdd5620c4e32c14d000ca5154a2d5906d999170a41fbf0875bf8ce26fb7b2494", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking arc-swap v0.4.8
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking base64 v0.12.1
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking banner v0.0.4
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking ordered-float v2.1.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking log4rs v1.0.0
[INFO] [stderr]     Checking rust-tcp-server v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::sync::mpsc::Sender`
[INFO] [stdout]  --> src/client_handler.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::mpsc::Sender;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Action`
[INFO] [stdout]   --> src/main.rs:13:32
[INFO] [stdout]    |
[INFO] [stdout] 13 | use http::{TcpServer, Request, Action};
[INFO] [stdout]    |                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::mpsc::Sender`
[INFO] [stdout]  --> src/client_handler.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::mpsc::Sender;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Action`
[INFO] [stdout]   --> src/main.rs:13:32
[INFO] [stdout]    |
[INFO] [stdout] 13 | use http::{TcpServer, Request, Action};
[INFO] [stdout]    |                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `client_type`
[INFO] [stdout]   --> src/http/tcp_client_handler.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     client_type: TcpClientType,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CloseConnection`
[INFO] [stdout]   --> src/http/tcp_client_handler.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     CloseConnection,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/extimpl.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `client_type`
[INFO] [stdout]   --> src/http/tcp_client_handler.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     client_type: TcpClientType,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CloseConnection`
[INFO] [stdout]   --> src/http/tcp_client_handler.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     CloseConnection,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/extimpl.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.09s
[INFO] running `Command { std: "docker" "inspect" "fdd5620c4e32c14d000ca5154a2d5906d999170a41fbf0875bf8ce26fb7b2494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdd5620c4e32c14d000ca5154a2d5906d999170a41fbf0875bf8ce26fb7b2494", kill_on_drop: false }`
[INFO] [stdout] fdd5620c4e32c14d000ca5154a2d5906d999170a41fbf0875bf8ce26fb7b2494