[INFO] cloning repository https://github.com/Shakeeb-Ansari/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/Shakeeb-Ansari/Rust_Practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShakeeb-Ansari%2FRust_Practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShakeeb-Ansari%2FRust_Practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44271ed09ea7715d4ccea94c35c03bc97da630d3
[INFO] testing Shakeeb-Ansari/Rust_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%2FShakeeb-Ansari%2FRust_Practice" "/workspace/builds/worker-77/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-77/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Shakeeb-Ansari/Rust_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/Shakeeb-Ansari/Rust_Practice
[INFO] finished tweaking git repo https://github.com/Shakeeb-Ansari/Rust_Practice
[INFO] tweaked toml for git repo https://github.com/Shakeeb-Ansari/Rust_Practice written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] crate git repo https://github.com/Shakeeb-Ansari/Rust_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-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 353423d9560ef4e8710af0a026bcd9c6089ec20d323af38dc207e47be832d74e
[INFO] running `Command { std: "docker" "start" "-a" "353423d9560ef4e8710af0a026bcd9c6089ec20d323af38dc207e47be832d74e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "353423d9560ef4e8710af0a026bcd9c6089ec20d323af38dc207e47be832d74e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "353423d9560ef4e8710af0a026bcd9c6089ec20d323af38dc207e47be832d74e", kill_on_drop: false }`
[INFO] [stdout] 353423d9560ef4e8710af0a026bcd9c6089ec20d323af38dc207e47be832d74e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] e1a40fa9a8d72ffb6cbdecbe8aae2366ed3416c6b0bbc14f6767d248615d3513
[INFO] running `Command { std: "docker" "start" "-a" "e1a40fa9a8d72ffb6cbdecbe8aae2366ed3416c6b0bbc14f6767d248615d3513", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling Rust_Practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Currency`
[INFO] [stdout]   --> src/pmatching.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |      enum Currency {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `validity`
[INFO] [stdout]   --> src/pmatching.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |      fn validity(var: Currency) -> u8 {
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `Command { std: "docker" "inspect" "e1a40fa9a8d72ffb6cbdecbe8aae2366ed3416c6b0bbc14f6767d248615d3513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1a40fa9a8d72ffb6cbdecbe8aae2366ed3416c6b0bbc14f6767d248615d3513", kill_on_drop: false }`
[INFO] [stdout] e1a40fa9a8d72ffb6cbdecbe8aae2366ed3416c6b0bbc14f6767d248615d3513
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 8a5689559b33ef757d99a4e2fa6d1a9379507c1196ca754ec38a55c6ee5693a3
[INFO] running `Command { std: "docker" "start" "-a" "8a5689559b33ef757d99a4e2fa6d1a9379507c1196ca754ec38a55c6ee5693a3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling Rust_Practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Currency`
[INFO] [stdout]   --> src/pmatching.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |      enum Currency {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `validity`
[INFO] [stdout]   --> src/pmatching.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |      fn validity(var: Currency) -> u8 {
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.83s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/Rust_Practice-463ecbc470721a15)
[INFO] running `Command { std: "docker" "inspect" "8a5689559b33ef757d99a4e2fa6d1a9379507c1196ca754ec38a55c6ee5693a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a5689559b33ef757d99a4e2fa6d1a9379507c1196ca754ec38a55c6ee5693a3", kill_on_drop: false }`
[INFO] [stdout] 8a5689559b33ef757d99a4e2fa6d1a9379507c1196ca754ec38a55c6ee5693a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 21cf131d4f8078866b31c8d7b9ba2beb2a0d1a0da4ed004ced3dcb0ff7c76a01
[INFO] running `Command { std: "docker" "start" "-a" "21cf131d4f8078866b31c8d7b9ba2beb2a0d1a0da4ed004ced3dcb0ff7c76a01", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: enum is never used: `Currency`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/pmatching.rs:18:11
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 18 |      enum Currency {
[INFO] [stdout] 
[INFO] [stderr]    |           ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `validity`
[INFO] [stderr]   --> src/pmatching.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |      fn validity(var: Currency) -> u8 {
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `Rust_Practice` (bin "Rust_Practice" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.81s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/Rust_Practice-463ecbc470721a15)
[INFO] running `Command { std: "docker" "inspect" "21cf131d4f8078866b31c8d7b9ba2beb2a0d1a0da4ed004ced3dcb0ff7c76a01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21cf131d4f8078866b31c8d7b9ba2beb2a0d1a0da4ed004ced3dcb0ff7c76a01", kill_on_drop: false }`
[INFO] [stdout] 21cf131d4f8078866b31c8d7b9ba2beb2a0d1a0da4ed004ced3dcb0ff7c76a01