[INFO] cloning repository https://github.com/coderasha/Rust-Programming-Practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/coderasha/Rust-Programming-Practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoderasha%2FRust-Programming-Practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoderasha%2FRust-Programming-Practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50d0c57c9fa133d82e76c3f3af833d3a0f58fdfb
[INFO] testing coderasha/Rust-Programming-Practice against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoderasha%2FRust-Programming-Practice" "/workspace/builds/worker-26/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/coderasha/Rust-Programming-Practice on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/coderasha/Rust-Programming-Practice
[INFO] finished tweaking git repo https://github.com/coderasha/Rust-Programming-Practice
[INFO] tweaked toml for git repo https://github.com/coderasha/Rust-Programming-Practice written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate git repo https://github.com/coderasha/Rust-Programming-Practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17449387a5f845171ef800847cd5cd0b88391f98ccf4e15e1eecf905a80e7968
[INFO] running `Command { std: "docker" "start" "-a" "17449387a5f845171ef800847cd5cd0b88391f98ccf4e15e1eecf905a80e7968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17449387a5f845171ef800847cd5cd0b88391f98ccf4e15e1eecf905a80e7968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17449387a5f845171ef800847cd5cd0b88391f98ccf4e15e1eecf905a80e7968", kill_on_drop: false }`
[INFO] [stdout] 17449387a5f845171ef800847cd5cd0b88391f98ccf4e15e1eecf905a80e7968
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4b00309dae27ea4a7784cbc9c87b8a2a41614c4f1d1342c3439ca3e6c20c8ad
[INFO] running `Command { std: "docker" "start" "-a" "c4b00309dae27ea4a7784cbc9c87b8a2a41614c4f1d1342c3439ca3e6c20c8ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling Rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `welcome`
[INFO] [stdout]  --> src/string.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 |      let welcome = String::from("Welcome to the future");
[INFO] [stdout]   |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_welcome`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Rust` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "c4b00309dae27ea4a7784cbc9c87b8a2a41614c4f1d1342c3439ca3e6c20c8ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4b00309dae27ea4a7784cbc9c87b8a2a41614c4f1d1342c3439ca3e6c20c8ad", kill_on_drop: false }`
[INFO] [stdout] c4b00309dae27ea4a7784cbc9c87b8a2a41614c4f1d1342c3439ca3e6c20c8ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63b203db3f050a6211ada3e40a7a892cd4764d6cdb62534d3bf6e299107496ae
[INFO] running `Command { std: "docker" "start" "-a" "63b203db3f050a6211ada3e40a7a892cd4764d6cdb62534d3bf6e299107496ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling Rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `welcome`
[INFO] [stdout]  --> src/string.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 |      let welcome = String::from("Welcome to the future");
[INFO] [stdout]   |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_welcome`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Rust` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/Rust-f456ae2b2b2df572)
[INFO] running `Command { std: "docker" "inspect" "63b203db3f050a6211ada3e40a7a892cd4764d6cdb62534d3bf6e299107496ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63b203db3f050a6211ada3e40a7a892cd4764d6cdb62534d3bf6e299107496ae", kill_on_drop: false }`
[INFO] [stdout] 63b203db3f050a6211ada3e40a7a892cd4764d6cdb62534d3bf6e299107496ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 536130d85d7425c8e6e76d480f9e5a14b701c939f3bfd5acd18a91eed520bc99
[INFO] running `Command { std: "docker" "start" "-a" "536130d85d7425c8e6e76d480f9e5a14b701c939f3bfd5acd18a91eed520bc99", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `welcome`
[INFO] [stdout] 
[INFO] [stderr]  --> src/string.rs:5:10
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 5 |      let welcome = String::from("Welcome to the future");
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_welcome`
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Rust` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rust`
[INFO] [stderr] 
[INFO] [stderr] warning: `Rust` (bin "Rust" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/Rust-f456ae2b2b2df572)
[INFO] running `Command { std: "docker" "inspect" "536130d85d7425c8e6e76d480f9e5a14b701c939f3bfd5acd18a91eed520bc99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "536130d85d7425c8e6e76d480f9e5a14b701c939f3bfd5acd18a91eed520bc99", kill_on_drop: false }`
[INFO] [stdout] 536130d85d7425c8e6e76d480f9e5a14b701c939f3bfd5acd18a91eed520bc99