[INFO] cloning repository https://github.com/lilSpeedwagon/rust_cache
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lilSpeedwagon/rust_cache" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FlilSpeedwagon%2Frust_cache", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FlilSpeedwagon%2Frust_cache'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a11f7f5821e424abe522f83c71d1f2b3fbdb00e
[INFO] checking lilSpeedwagon/rust_cache against try#3ec2a775459d36c7d90654e47c56ff7bb0d542ab for pr-139087
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FlilSpeedwagon%2Frust_cache" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lilSpeedwagon/rust_cache on toolchain 3ec2a775459d36c7d90654e47c56ff7bb0d542ab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lilSpeedwagon/rust_cache
[INFO] finished tweaking git repo https://github.com/lilSpeedwagon/rust_cache
[INFO] tweaked toml for git repo https://github.com/lilSpeedwagon/rust_cache written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/lilSpeedwagon/rust_cache 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" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffac35b189a987a58dc024650a8b0bb18c1b3921755f045beae3788c5d4505a9
[INFO] running `Command { std: "docker" "start" "-a" "ffac35b189a987a58dc024650a8b0bb18c1b3921755f045beae3788c5d4505a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffac35b189a987a58dc024650a8b0bb18c1b3921755f045beae3788c5d4505a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffac35b189a987a58dc024650a8b0bb18c1b3921755f045beae3788c5d4505a9", kill_on_drop: false }`
[INFO] [stdout] ffac35b189a987a58dc024650a8b0bb18c1b3921755f045beae3788c5d4505a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ff54403e27887e47df3126edd4eb9be07bc7d5cd46876452fc7f73ff082d404
[INFO] running `Command { std: "docker" "start" "-a" "2ff54403e27887e47df3126edd4eb9be07bc7d5cd46876452fc7f73ff082d404", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_cache v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `io::Read` and `net::TcpListener`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::Read, net::TcpListener};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `io::Read` and `net::TcpListener`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::Read, net::TcpListener};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader` and `prelude::*`
[INFO] [stdout]  --> src/main.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{prelude::*, BufReader};
[INFO] [stdout]   |               ^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader` and `prelude::*`
[INFO] [stdout]  --> src/main.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{prelude::*, BufReader};
[INFO] [stdout]   |               ^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt`
[INFO] [stdout]  --> src/server/serialize.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt, mem};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt`
[INFO] [stdout]  --> src/server/serialize.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt, mem};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> src/server/server.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::Read, net::TcpListener, net::TcpStream};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> src/server/server.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::Read, net::TcpListener, net::TcpStream};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Handler` is never used
[INFO] [stdout]  --> src/server/server.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Handler = fn(&mut TcpStream);
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Handler` is never used
[INFO] [stdout]  --> src/server/server.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Handler = fn(&mut TcpStream);
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reserved1` and `reserved2` are never read
[INFO] [stdout]   --> src/server/server.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct RequestHeader {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] 11 |     proto_version: i8,
[INFO] [stdout] 12 |     reserved1: i8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     reserved2: i32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reserved1` and `reserved2` are never read
[INFO] [stdout]   --> src/server/server.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct RequestHeader {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] 11 |     proto_version: i8,
[INFO] [stdout] 12 |     reserved1: i8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     reserved2: i32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "2ff54403e27887e47df3126edd4eb9be07bc7d5cd46876452fc7f73ff082d404", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ff54403e27887e47df3126edd4eb9be07bc7d5cd46876452fc7f73ff082d404", kill_on_drop: false }`
[INFO] [stdout] 2ff54403e27887e47df3126edd4eb9be07bc7d5cd46876452fc7f73ff082d404