[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 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShakeeb-Ansari%2FRust_Practice" "/workspace/builds/worker-79/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-79/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Shakeeb-Ansari/Rust_Practice on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-79/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" "+1.59.0" "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-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 501f58ea45f17df3fefb7386737c18ed89e5cceaf45077c9f3d6c12941adc3de
[INFO] running `Command { std: "docker" "start" "-a" "501f58ea45f17df3fefb7386737c18ed89e5cceaf45077c9f3d6c12941adc3de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "501f58ea45f17df3fefb7386737c18ed89e5cceaf45077c9f3d6c12941adc3de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "501f58ea45f17df3fefb7386737c18ed89e5cceaf45077c9f3d6c12941adc3de", kill_on_drop: false }`
[INFO] [stdout] 501f58ea45f17df3fefb7386737c18ed89e5cceaf45077c9f3d6c12941adc3de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6707b3c8fd4376e76895f3399f4b84005cd456ea05646cd80f2c4f4dcc0ba2a
[INFO] running `Command { std: "docker" "start" "-a" "b6707b3c8fd4376e76895f3399f4b84005cd456ea05646cd80f2c4f4dcc0ba2a", 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 51.86s
[INFO] running `Command { std: "docker" "inspect" "b6707b3c8fd4376e76895f3399f4b84005cd456ea05646cd80f2c4f4dcc0ba2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6707b3c8fd4376e76895f3399f4b84005cd456ea05646cd80f2c4f4dcc0ba2a", kill_on_drop: false }`
[INFO] [stdout] b6707b3c8fd4376e76895f3399f4b84005cd456ea05646cd80f2c4f4dcc0ba2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22f0237146dfe2ef3a4bcd95ba875b78cd7566a52a95e9553d1b7ef402567b3b
[INFO] running `Command { std: "docker" "start" "-a" "22f0237146dfe2ef3a4bcd95ba875b78cd7566a52a95e9553d1b7ef402567b3b", kill_on_drop: false }`
[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 0.49s
[INFO] running `Command { std: "docker" "inspect" "22f0237146dfe2ef3a4bcd95ba875b78cd7566a52a95e9553d1b7ef402567b3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22f0237146dfe2ef3a4bcd95ba875b78cd7566a52a95e9553d1b7ef402567b3b", kill_on_drop: false }`
[INFO] [stdout] 22f0237146dfe2ef3a4bcd95ba875b78cd7566a52a95e9553d1b7ef402567b3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ce015bc92353156c2d6e66089d4916a0c40ee4aa12542a37d14962a08413cbe5
[INFO] running `Command { std: "docker" "start" "-a" "ce015bc92353156c2d6e66089d4916a0c40ee4aa12542a37d14962a08413cbe5", kill_on_drop: false }`
[INFO] [stderr] warning: enum is never used: `Currency`
[INFO] [stderr]   --> src/pmatching.rs:18:11
[INFO] [stderr]    |
[INFO] [stderr] 18 |      enum Currency {
[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 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/Rust_Practice-7cf9b081e494bd95)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce015bc92353156c2d6e66089d4916a0c40ee4aa12542a37d14962a08413cbe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce015bc92353156c2d6e66089d4916a0c40ee4aa12542a37d14962a08413cbe5", kill_on_drop: false }`
[INFO] [stdout] ce015bc92353156c2d6e66089d4916a0c40ee4aa12542a37d14962a08413cbe5