[INFO] cloning repository https://github.com/Rahinpatel/Rust_basic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Rahinpatel/Rust_basic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRahinpatel%2FRust_basic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRahinpatel%2FRust_basic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b8285adfc21569a0d02e66ca85d90c1b5398c6e
[INFO] testing Rahinpatel/Rust_basic against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRahinpatel%2FRust_basic" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Rahinpatel/Rust_basic on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Rahinpatel/Rust_basic
[INFO] finished tweaking git repo https://github.com/Rahinpatel/Rust_basic
[INFO] tweaked toml for git repo https://github.com/Rahinpatel/Rust_basic written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Rahinpatel/Rust_basic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eff2f4c41f79df0325bea9ec66dc97f1da369c59dd1e43097f02e5e11a3a0a19
[INFO] running `Command { std: "docker" "start" "-a" "eff2f4c41f79df0325bea9ec66dc97f1da369c59dd1e43097f02e5e11a3a0a19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eff2f4c41f79df0325bea9ec66dc97f1da369c59dd1e43097f02e5e11a3a0a19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eff2f4c41f79df0325bea9ec66dc97f1da369c59dd1e43097f02e5e11a3a0a19", kill_on_drop: false }`
[INFO] [stdout] eff2f4c41f79df0325bea9ec66dc97f1da369c59dd1e43097f02e5e11a3a0a19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b17c3adc624bb3b0cb508efb51e3259c2d02b7b67cac5444ee26b6894a95c667
[INFO] running `Command { std: "docker" "start" "-a" "b17c3adc624bb3b0cb508efb51e3259c2d02b7b67cac5444ee26b6894a95c667", kill_on_drop: false }`
[INFO] [stderr]    Compiling demo-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Down`
[INFO] [stdout]   --> src/main.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     Down,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "b17c3adc624bb3b0cb508efb51e3259c2d02b7b67cac5444ee26b6894a95c667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b17c3adc624bb3b0cb508efb51e3259c2d02b7b67cac5444ee26b6894a95c667", kill_on_drop: false }`
[INFO] [stdout] b17c3adc624bb3b0cb508efb51e3259c2d02b7b67cac5444ee26b6894a95c667
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5a3540a931ffbafaa101e64fbb43dc78a5469a56fcb7ed3ef89fdb0fe531f2e
[INFO] running `Command { std: "docker" "start" "-a" "f5a3540a931ffbafaa101e64fbb43dc78a5469a56fcb7ed3ef89fdb0fe531f2e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling demo-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Down`
[INFO] [stdout]   --> src/main.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     Down,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "f5a3540a931ffbafaa101e64fbb43dc78a5469a56fcb7ed3ef89fdb0fe531f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5a3540a931ffbafaa101e64fbb43dc78a5469a56fcb7ed3ef89fdb0fe531f2e", kill_on_drop: false }`
[INFO] [stdout] f5a3540a931ffbafaa101e64fbb43dc78a5469a56fcb7ed3ef89fdb0fe531f2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 30446e4ce403a7e0e238f90f7a47710a0232f5f02dfc0886cd6bf6c2c9481daf
[INFO] running `Command { std: "docker" "start" "-a" "30446e4ce403a7e0e238f90f7a47710a0232f5f02dfc0886cd6bf6c2c9481daf", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `Down`
[INFO] [stdout] 
[INFO] [stderr]   --> src/main.rs:66:5
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 66 |     Down,
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |     ^^^^
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `demo-rust` (bin "demo-rust" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/demo_rust-ac5bdb8d24d3e0c6)
[INFO] running `Command { std: "docker" "inspect" "30446e4ce403a7e0e238f90f7a47710a0232f5f02dfc0886cd6bf6c2c9481daf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30446e4ce403a7e0e238f90f7a47710a0232f5f02dfc0886cd6bf6c2c9481daf", kill_on_drop: false }`
[INFO] [stdout] 30446e4ce403a7e0e238f90f7a47710a0232f5f02dfc0886cd6bf6c2c9481daf