[INFO] cloning repository https://github.com/amrelhewy09/rust-worker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amrelhewy09/rust-worker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famrelhewy09%2Frust-worker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famrelhewy09%2Frust-worker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ac5e838ecfdb247e2ee02a5e3b137b31d45c241
[INFO] checking amrelhewy09/rust-worker against master#fe348cd1a8e0fa445b772393147ed865904dcd4d for pr-139587-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famrelhewy09%2Frust-worker" "/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/amrelhewy09/rust-worker on toolchain fe348cd1a8e0fa445b772393147ed865904dcd4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amrelhewy09/rust-worker
[INFO] finished tweaking git repo https://github.com/amrelhewy09/rust-worker
[INFO] tweaked toml for git repo https://github.com/amrelhewy09/rust-worker written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/amrelhewy09/rust-worker 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" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded percent-encoding v2.2.0
[INFO] [stderr]   Downloaded form_urlencoded v1.1.0
[INFO] [stderr]   Downloaded ryu v1.0.13
[INFO] [stderr]   Downloaded itoa v1.0.6
[INFO] [stderr]   Downloaded bytes v1.4.0
[INFO] [stderr]   Downloaded redis v0.23.0
[INFO] [stderr]   Downloaded url v2.3.1
[INFO] [stderr]   Downloaded memchr v2.5.0
[INFO] [stderr]   Downloaded idna v0.3.0
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd9666ac035c032fb5c9a727461cee278ac2baab62060c32c24c9053ea55ac7a
[INFO] running `Command { std: "docker" "start" "-a" "fd9666ac035c032fb5c9a727461cee278ac2baab62060c32c24c9053ea55ac7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd9666ac035c032fb5c9a727461cee278ac2baab62060c32c24c9053ea55ac7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd9666ac035c032fb5c9a727461cee278ac2baab62060c32c24c9053ea55ac7a", kill_on_drop: false }`
[INFO] [stdout] fd9666ac035c032fb5c9a727461cee278ac2baab62060c32c24c9053ea55ac7a
[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" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb959af67d84b3494f66d907d8d2ff21925993cacc560bcc7c3c0d628d091bf6
[INFO] running `Command { std: "docker" "start" "-a" "cb959af67d84b3494f66d907d8d2ff21925993cacc560bcc7c3c0d628d091bf6", kill_on_drop: false }`
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking combine v4.6.6
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking redis v0.23.0
[INFO] [stderr]     Checking rust-api v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `redis::FromRedisValue`
[INFO] [stdout]  --> src/redis_conn.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use redis::FromRedisValue;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]  --> src/thread_pool.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::{Arc, Mutex, RwLock};
[INFO] [stdout]   |                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `redis::FromRedisValue`
[INFO] [stdout]  --> src/redis_conn.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use redis::FromRedisValue;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]  --> src/thread_pool.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::{Arc, Mutex, RwLock};
[INFO] [stdout]   |                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_key` and `get` are never used
[INFO] [stdout]   --> src/redis_conn.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl RedisClient {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] 9  |     pub fn set_key(&mut self, key: String, value: u32) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn get(&mut self, key: String)-> u32 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_key` and `get` are never used
[INFO] [stdout]   --> src/redis_conn.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl RedisClient {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] 9  |     pub fn set_key(&mut self, key: String, value: u32) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn get(&mut self, key: String)-> u32 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.76s
[INFO] running `Command { std: "docker" "inspect" "cb959af67d84b3494f66d907d8d2ff21925993cacc560bcc7c3c0d628d091bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb959af67d84b3494f66d907d8d2ff21925993cacc560bcc7c3c0d628d091bf6", kill_on_drop: false }`
[INFO] [stdout] cb959af67d84b3494f66d907d8d2ff21925993cacc560bcc7c3c0d628d091bf6