[INFO] cloning repository https://github.com/dominikabobik/library
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dominikabobik/library" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdominikabobik%2Flibrary", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdominikabobik%2Flibrary'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac35b4bc7c8b19f870c116e9ff4173a402f23e94
[INFO] building dominikabobik/library against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdominikabobik%2Flibrary" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dominikabobik/library on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dominikabobik/library
[INFO] finished tweaking git repo https://github.com/dominikabobik/library
[INFO] tweaked toml for git repo https://github.com/dominikabobik/library written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dominikabobik/library 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd7dcf8aa83779e9bc01d782eb06f9e4e3f623140b7ac6e4efe8151cdd091344
[INFO] running `Command { std: "docker" "start" "-a" "cd7dcf8aa83779e9bc01d782eb06f9e4e3f623140b7ac6e4efe8151cdd091344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd7dcf8aa83779e9bc01d782eb06f9e4e3f623140b7ac6e4efe8151cdd091344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd7dcf8aa83779e9bc01d782eb06f9e4e3f623140b7ac6e4efe8151cdd091344", kill_on_drop: false }`
[INFO] [stdout] cd7dcf8aa83779e9bc01d782eb06f9e4e3f623140b7ac6e4efe8151cdd091344
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c4acef068907a76e6f07527b209868a906265edc0ab89c86a3bab23a75e4963
[INFO] running `Command { std: "docker" "start" "-a" "0c4acef068907a76e6f07527b209868a906265edc0ab89c86a3bab23a75e4963", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling uuid v1.7.0
[INFO] [stderr]    Compiling library v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> src/user.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct User {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `login` is never used
[INFO] [stdout]   --> src/user.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn login() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_account` is never used
[INFO] [stdout]   --> src/user.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn create_account(user_list: &mut HashMap<Uuid, User>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{self, stdin},
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     while true {
[INFO] [stdout]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "0c4acef068907a76e6f07527b209868a906265edc0ab89c86a3bab23a75e4963", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c4acef068907a76e6f07527b209868a906265edc0ab89c86a3bab23a75e4963", kill_on_drop: false }`
[INFO] [stdout] 0c4acef068907a76e6f07527b209868a906265edc0ab89c86a3bab23a75e4963
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14555b0b2edfc35de902805af0cae6bec65ac8d8f5abef2e26dd3d4387fd7fba
[INFO] running `Command { std: "docker" "start" "-a" "14555b0b2edfc35de902805af0cae6bec65ac8d8f5abef2e26dd3d4387fd7fba", kill_on_drop: false }`
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> src/user.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct User {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling library v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `login` is never used
[INFO] [stdout]   --> src/user.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn login() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_account` is never used
[INFO] [stdout]   --> src/user.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn create_account(user_list: &mut HashMap<Uuid, User>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{self, stdin},
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     while true {
[INFO] [stdout]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> src/user.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct User {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `login` is never used
[INFO] [stdout]   --> src/user.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn login() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_account` is never used
[INFO] [stdout]   --> src/user.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn create_account(user_list: &mut HashMap<Uuid, User>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "14555b0b2edfc35de902805af0cae6bec65ac8d8f5abef2e26dd3d4387fd7fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14555b0b2edfc35de902805af0cae6bec65ac8d8f5abef2e26dd3d4387fd7fba", kill_on_drop: false }`
[INFO] [stdout] 14555b0b2edfc35de902805af0cae6bec65ac8d8f5abef2e26dd3d4387fd7fba