[INFO] cloning repository https://github.com/karthiksriramoju/Rust-Practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/karthiksriramoju/Rust-Practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarthiksriramoju%2FRust-Practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarthiksriramoju%2FRust-Practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2aa06d9adf69f5617fbe5aad8c4f41a66553a35a
[INFO] checking karthiksriramoju/Rust-Practice against master#36b21637e93b038453924d3c66821089e71d8baa for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarthiksriramoju%2FRust-Practice" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/karthiksriramoju/Rust-Practice
[INFO] finished tweaking git repo https://github.com/karthiksriramoju/Rust-Practice
[INFO] tweaked toml for git repo https://github.com/karthiksriramoju/Rust-Practice written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/karthiksriramoju/Rust-Practice on toolchain 36b21637e93b038453924d3c66821089e71d8baa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/karthiksriramoju/Rust-Practice 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" "+36b21637e93b038453924d3c66821089e71d8baa" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db666420fda0e4508c5ea17371d764987ee04037857c810f26a0c9162194b246
[INFO] running `Command { std: "docker" "start" "-a" "db666420fda0e4508c5ea17371d764987ee04037857c810f26a0c9162194b246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db666420fda0e4508c5ea17371d764987ee04037857c810f26a0c9162194b246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db666420fda0e4508c5ea17371d764987ee04037857c810f26a0c9162194b246", kill_on_drop: false }`
[INFO] [stdout] db666420fda0e4508c5ea17371d764987ee04037857c810f26a0c9162194b246
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e15aceff27f7d029925edf9481202b01eff4cc34fe6ca3da6d3127df0d4baf15
[INFO] running `Command { std: "docker" "start" "-a" "e15aceff27f7d029925edf9481202b01eff4cc34fe6ca3da6d3127df0d4baf15", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]    Compiling quote v1.0.39
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling syn v2.0.99
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking fs v0.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.218
[INFO] [stderr]     Checking Rust-Practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/part5.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/part5.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]  --> src/part5.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 5 |   name : String,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 6 |   age : i32
[INFO] [stdout]   |   ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]  --> src/part5.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 5 |   name : String,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 6 |   age : i32
[INFO] [stdout]   |   ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.56s
[INFO] running `Command { std: "docker" "inspect" "e15aceff27f7d029925edf9481202b01eff4cc34fe6ca3da6d3127df0d4baf15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e15aceff27f7d029925edf9481202b01eff4cc34fe6ca3da6d3127df0d4baf15", kill_on_drop: false }`
[INFO] [stdout] e15aceff27f7d029925edf9481202b01eff4cc34fe6ca3da6d3127df0d4baf15