[INFO] cloning repository https://github.com/christiansakai/chatter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/christiansakai/chatter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristiansakai%2Fchatter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristiansakai%2Fchatter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2dfe647d2688df3772d121f8c76368599e6c6876
[INFO] checking christiansakai/chatter against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristiansakai%2Fchatter" "/workspace/builds/worker-68/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-68/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/christiansakai/chatter on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/christiansakai/chatter
[INFO] finished tweaking git repo https://github.com/christiansakai/chatter
[INFO] tweaked toml for git repo https://github.com/christiansakai/chatter written to /workspace/builds/worker-68/source/Cargo.toml
[INFO] crate git repo https://github.com/christiansakai/chatter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v0.4.17
[INFO] [stderr]   Downloaded serde_derive v1.0.76
[INFO] [stderr]   Downloaded serde v1.0.76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 658d054e5de22afd1fdc9ae4760533a104090053f54d98d572a5d2bd8763023a
[INFO] running `Command { std: "docker" "start" "-a" "658d054e5de22afd1fdc9ae4760533a104090053f54d98d572a5d2bd8763023a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "658d054e5de22afd1fdc9ae4760533a104090053f54d98d572a5d2bd8763023a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "658d054e5de22afd1fdc9ae4760533a104090053f54d98d572a5d2bd8763023a", kill_on_drop: false }`
[INFO] [stdout] 658d054e5de22afd1fdc9ae4760533a104090053f54d98d572a5d2bd8763023a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0c0e543c7b84c42accf6e405a01d9aab34e102f480ccee47eb93e1cc4fc007d
[INFO] running `Command { std: "docker" "start" "-a" "d0c0e543c7b84c42accf6e405a01d9aab34e102f480ccee47eb93e1cc4fc007d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.17
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling serde v1.0.76
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling serde_derive v1.0.76
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]     Checking chatter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ErrorKind`, `Error`
[INFO] [stdout]  --> src/client.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{Error, ErrorKind, Read, Write};
[INFO] [stdout]   |               ^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/util.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorKind`, `Error`
[INFO] [stdout]  --> src/client.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{Error, ErrorKind, Read, Write};
[INFO] [stdout]   |               ^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/util.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `address`
[INFO] [stdout]   --> src/server.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     address: SocketAddr,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/client.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `address`
[INFO] [stdout]   --> src/server.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     address: SocketAddr,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/client.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.56s
[INFO] running `Command { std: "docker" "inspect" "d0c0e543c7b84c42accf6e405a01d9aab34e102f480ccee47eb93e1cc4fc007d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0c0e543c7b84c42accf6e405a01d9aab34e102f480ccee47eb93e1cc4fc007d", kill_on_drop: false }`
[INFO] [stdout] d0c0e543c7b84c42accf6e405a01d9aab34e102f480ccee47eb93e1cc4fc007d