[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 master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstuartthompson%2Frusttcpserver" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stuartthompson/rusttcpserver on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "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-0-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded banner v0.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7626b28769deccf35fd62aa4678134abb8142e1b1609e804641dc38ed7996ecb
[INFO] running `Command { std: "docker" "start" "-a" "7626b28769deccf35fd62aa4678134abb8142e1b1609e804641dc38ed7996ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7626b28769deccf35fd62aa4678134abb8142e1b1609e804641dc38ed7996ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7626b28769deccf35fd62aa4678134abb8142e1b1609e804641dc38ed7996ecb", kill_on_drop: false }`
[INFO] [stdout] 7626b28769deccf35fd62aa4678134abb8142e1b1609e804641dc38ed7996ecb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fb7b5955a5be871470163206c25c1ff1fa082217407eea75af92acdcde41154
[INFO] running `Command { std: "docker" "start" "-a" "9fb7b5955a5be871470163206c25c1ff1fa082217407eea75af92acdcde41154", 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_derive v1.0.123
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[INFO] [stderr]    Compiling num-integer v0.1.44
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[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking smallvec v1.6.1
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[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling derivative v2.2.0
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[INFO] [stderr]     Checking serde-value v0.7.0
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[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 `client_type` is never read
[INFO] [stdout]   --> src/http/tcp_client_handler.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct TcpClientHandler {
[INFO] [stdout]    |            ---------------- field in this struct
[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: field `client_type` is never read
[INFO] [stdout]   --> src/http/tcp_client_handler.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct TcpClientHandler {
[INFO] [stdout]    |            ---------------- field in this struct
[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 `CloseConnection` is never constructed
[INFO] [stdout]   --> src/http/tcp_client_handler.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum TcpClientAction {
[INFO] [stdout]    |          --------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 27 |     CloseConnection,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `CloseConnection` is never constructed
[INFO] [stdout]   --> src/http/tcp_client_handler.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum TcpClientAction {
[INFO] [stdout]    |          --------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 27 |     CloseConnection,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/http/request.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | pub struct HttpRequest {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 2  |     pub verb: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 3  |     pub path: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 4  |     pub protocol: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 5  |     pub host: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 6  |     pub connection: String,
[INFO] [stdout] 7  |     pub cache_control: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 8  |     pub user_agent: String,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 9  |     pub accept: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 10 |     pub accept_encoding: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 11 |     pub accept_language: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     pub sec_websocket_version: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub sec_websocket_extensions: String
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/http/request.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | pub struct HttpRequest {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 2  |     pub verb: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 3  |     pub path: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 4  |     pub protocol: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 5  |     pub host: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 6  |     pub connection: String,
[INFO] [stdout] 7  |     pub cache_control: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 8  |     pub user_agent: String,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 9  |     pub accept: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 10 |     pub accept_encoding: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 11 |     pub accept_language: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     pub sec_websocket_version: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub sec_websocket_extensions: String
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/extimpl.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct MyServerImpl {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/extimpl.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct MyServerImpl {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/http/tcp_server.rs:87:25
[INFO] [stdout]    |
[INFO] [stdout] 87 |                         &clients.insert(address.to_string(), client);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |                         let _ = &clients.insert(address.to_string(), client);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/http/tcp_server.rs:87:25
[INFO] [stdout]    |
[INFO] [stdout] 87 |                         &clients.insert(address.to_string(), client);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |                         let _ = &clients.insert(address.to_string(), client);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.43s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "9fb7b5955a5be871470163206c25c1ff1fa082217407eea75af92acdcde41154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fb7b5955a5be871470163206c25c1ff1fa082217407eea75af92acdcde41154", kill_on_drop: false }`
[INFO] [stdout] 9fb7b5955a5be871470163206c25c1ff1fa082217407eea75af92acdcde41154
