[INFO] cloning repository https://github.com/SanTMK/Rust_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SanTMK/Rust_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSanTMK%2FRust_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSanTMK%2FRust_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5238926b06c338a9cb116084eff60d3272699312
[INFO] testing SanTMK/Rust_demo 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%2FSanTMK%2FRust_demo" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SanTMK/Rust_demo 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/SanTMK/Rust_demo
[INFO] finished tweaking git repo https://github.com/SanTMK/Rust_demo
[INFO] tweaked toml for git repo https://github.com/SanTMK/Rust_demo written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/SanTMK/Rust_demo 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] c89d83b087928193612aac077c0c912190780aef4ddd3fcc4b3033183b13017e
[INFO] running `Command { std: "docker" "start" "-a" "c89d83b087928193612aac077c0c912190780aef4ddd3fcc4b3033183b13017e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c89d83b087928193612aac077c0c912190780aef4ddd3fcc4b3033183b13017e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c89d83b087928193612aac077c0c912190780aef4ddd3fcc4b3033183b13017e", kill_on_drop: false }`
[INFO] [stdout] c89d83b087928193612aac077c0c912190780aef4ddd3fcc4b3033183b13017e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 37f45a5698b29731d375c149b5da4f82490fc4b485b20164576147b0bb245276
[INFO] running `Command { std: "docker" "start" "-a" "37f45a5698b29731d375c149b5da4f82490fc4b485b20164576147b0bb245276", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `file` is never read
[INFO] [stdout]   --> src/structs.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut file: char = 'z';
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rank` is never read
[INFO] [stdout]   --> src/structs.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut rank: u8 = 0;
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `Command { std: "docker" "inspect" "37f45a5698b29731d375c149b5da4f82490fc4b485b20164576147b0bb245276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37f45a5698b29731d375c149b5da4f82490fc4b485b20164576147b0bb245276", kill_on_drop: false }`
[INFO] [stdout] 37f45a5698b29731d375c149b5da4f82490fc4b485b20164576147b0bb245276
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] b2ee4ee741a36ac36fb1054c561ad9a360f97578ec793477f62ae7bd76169735
[INFO] running `Command { std: "docker" "start" "-a" "b2ee4ee741a36ac36fb1054c561ad9a360f97578ec793477f62ae7bd76169735", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `file` is never read
[INFO] [stdout]   --> src/structs.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut file: char = 'z';
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rank` is never read
[INFO] [stdout]   --> src/structs.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut rank: u8 = 0;
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/cargo_demo-206c5d6165f76a94)
[INFO] running `Command { std: "docker" "inspect" "b2ee4ee741a36ac36fb1054c561ad9a360f97578ec793477f62ae7bd76169735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2ee4ee741a36ac36fb1054c561ad9a360f97578ec793477f62ae7bd76169735", kill_on_drop: false }`
[INFO] [stdout] b2ee4ee741a36ac36fb1054c561ad9a360f97578ec793477f62ae7bd76169735
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 5088943b4adcd59e3da21b3c77dfef89f428969a28959348cca39fca6e9399a5
[INFO] running `Command { std: "docker" "start" "-a" "5088943b4adcd59e3da21b3c77dfef89f428969a28959348cca39fca6e9399a5", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `file` is never read
[INFO] [stderr]   --> src/structs.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let mut file: char = 'z';
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `rank` is never read
[INFO] [stderr]   --> src/structs.rs:19:17
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let mut rank: u8 = 0;
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `cargo_demo` (bin "cargo_demo" 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/cargo_demo-206c5d6165f76a94)
[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" "5088943b4adcd59e3da21b3c77dfef89f428969a28959348cca39fca6e9399a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5088943b4adcd59e3da21b3c77dfef89f428969a28959348cca39fca6e9399a5", kill_on_drop: false }`
[INFO] [stdout] 5088943b4adcd59e3da21b3c77dfef89f428969a28959348cca39fca6e9399a5