[INFO] cloning repository https://github.com/BilguunTs/light_chat_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BilguunTs/light_chat_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBilguunTs%2Flight_chat_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBilguunTs%2Flight_chat_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ccbf04f5c4fe3f6aa13ff77188f74bbce27041c3
[INFO] checking BilguunTs/light_chat_server against master#f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b for pr-148329
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBilguunTs%2Flight_chat_server" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BilguunTs/light_chat_server
[INFO] finished tweaking git repo https://github.com/BilguunTs/light_chat_server
[INFO] tweaked toml for git repo https://github.com/BilguunTs/light_chat_server written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BilguunTs/light_chat_server on toolchain f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BilguunTs/light_chat_server 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" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13ce3d49d0f778f2c9436b79f6256bfe8d360ff580eef842d999d700b93eff28
[INFO] running `Command { std: "docker" "start" "-a" "13ce3d49d0f778f2c9436b79f6256bfe8d360ff580eef842d999d700b93eff28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13ce3d49d0f778f2c9436b79f6256bfe8d360ff580eef842d999d700b93eff28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13ce3d49d0f778f2c9436b79f6256bfe8d360ff580eef842d999d700b93eff28", kill_on_drop: false }`
[INFO] [stdout] 13ce3d49d0f778f2c9436b79f6256bfe8d360ff580eef842d999d700b93eff28
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f6afd8dd927637012d281e8bed94f3b376993c185026bf7d9c93446734d8be8
[INFO] running `Command { std: "docker" "start" "-a" "5f6afd8dd927637012d281e8bed94f3b376993c185026bf7d9c93446734d8be8", kill_on_drop: false }`
[INFO] [stderr]     Checking server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{ErrorKind, Read, Write};
[INFO] [stdout]   |                                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{ErrorKind, Read, Write};
[INFO] [stdout]   |                                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:28:41
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 match socket.read_exact(&mut buff) {
[INFO] [stdout]    |                              ---------- ^^^^^^^^^ expected `&mut [u8]`, found `&mut Vec<usize>`
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              arguments to this method are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected mutable reference `&mut [u8]`
[INFO] [stdout]               found mutable reference `&mut Vec<usize>`
[INFO] [stdout] note: method defined here
[INFO] [stdout]   --> /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/io/mod.rs:1044:8
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 |                         let msg = String::from_utf8(msg).expect("Invalid utf8 message");
[INFO] [stdout]    |                                   ----------------- ^^^ expected `Vec<u8>`, found `Vec<usize>`
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<u8>`
[INFO] [stdout]               found struct `Vec<usize>`
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/alloc/src/string.rs:563:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:28:41
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 match socket.read_exact(&mut buff) {
[INFO] [stdout]    |                              ---------- ^^^^^^^^^ expected `&mut [u8]`, found `&mut Vec<usize>`
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              arguments to this method are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected mutable reference `&mut [u8]`
[INFO] [stdout]               found mutable reference `&mut Vec<usize>`
[INFO] [stdout] note: method defined here
[INFO] [stdout]   --> /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/io/mod.rs:1044:8
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 |                         let msg = String::from_utf8(msg).expect("Invalid utf8 message");
[INFO] [stdout]    |                                   ----------------- ^^^ expected `Vec<u8>`, found `Vec<usize>`
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<u8>`
[INFO] [stdout]               found struct `Vec<usize>`
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/alloc/src/string.rs:563:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `server` (bin "server" test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `server` (bin "server") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "5f6afd8dd927637012d281e8bed94f3b376993c185026bf7d9c93446734d8be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f6afd8dd927637012d281e8bed94f3b376993c185026bf7d9c93446734d8be8", kill_on_drop: false }`
[INFO] [stdout] 5f6afd8dd927637012d281e8bed94f3b376993c185026bf7d9c93446734d8be8
