[INFO] updating cached repository https://github.com/DdZ-Fred/rust_practice_2
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e6c0bcf67e05ca6e440c652aacc9510681ab7415
[INFO] testing DdZ-Fred/rust_practice_2 against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDdZ-Fred%2Frust_practice_2" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DdZ-Fred/rust_practice_2 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/DdZ-Fred/rust_practice_2
[INFO] finished tweaking git repo https://github.com/DdZ-Fred/rust_practice_2
[INFO] tweaked toml for git repo https://github.com/DdZ-Fred/rust_practice_2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/DdZ-Fred/rust_practice_2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b544875c409833e2f7580657b81a0c4ef3df5f9ba471972cbeeb7d235fbdb860
[INFO] running `"docker" "start" "-a" "b544875c409833e2f7580657b81a0c4ef3df5f9ba471972cbeeb7d235fbdb860"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling practice_2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `blabla`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let blabla = IpAddress::V6;
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_blabla`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> src/main.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let w = Some("String is blablabla");
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `absent_number`
[INFO] [stderr]   --> src/main.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let absent_number: Option<i8> = None;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_absent_number`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `V4`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     V4,
[INFO] [stderr]   |     ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Quit`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Quit,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Move`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Move { x: i32, y: i32 },
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ChangeColor`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     ChangeColor(i32, i32, i32),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "b544875c409833e2f7580657b81a0c4ef3df5f9ba471972cbeeb7d235fbdb860"`
[INFO] running `"docker" "rm" "-f" "b544875c409833e2f7580657b81a0c4ef3df5f9ba471972cbeeb7d235fbdb860"`
[INFO] [stdout] b544875c409833e2f7580657b81a0c4ef3df5f9ba471972cbeeb7d235fbdb860
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d0f46d32fd78a4cedfcf876858fd3039d2b49a7f073660d3ec72e451e2cc96be
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d0f46d32fd78a4cedfcf876858fd3039d2b49a7f073660d3ec72e451e2cc96be"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling practice_2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `blabla`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let blabla = IpAddress::V6;
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_blabla`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> src/main.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let w = Some("String is blablabla");
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `absent_number`
[INFO] [stderr]   --> src/main.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let absent_number: Option<i8> = None;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_absent_number`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `V4`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     V4,
[INFO] [stderr]   |     ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Quit`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Quit,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Move`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Move { x: i32, y: i32 },
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ChangeColor`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     ChangeColor(i32, i32, i32),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "d0f46d32fd78a4cedfcf876858fd3039d2b49a7f073660d3ec72e451e2cc96be"`
[INFO] running `"docker" "rm" "-f" "d0f46d32fd78a4cedfcf876858fd3039d2b49a7f073660d3ec72e451e2cc96be"`
[INFO] [stdout] d0f46d32fd78a4cedfcf876858fd3039d2b49a7f073660d3ec72e451e2cc96be
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c1514b315c4f8ae48539fc081c59296332b16343439714fc7d87e8c0a00b956b
[INFO] running `"docker" "start" "-a" "c1514b315c4f8ae48539fc081c59296332b16343439714fc7d87e8c0a00b956b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `blabla`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let blabla = IpAddress::V6;
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_blabla`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> src/main.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let w = Some("String is blablabla");
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `absent_number`
[INFO] [stderr]   --> src/main.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let absent_number: Option<i8> = None;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_absent_number`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `V4`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     V4,
[INFO] [stderr]   |     ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Quit`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Quit,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Move`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Move { x: i32, y: i32 },
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ChangeColor`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     ChangeColor(i32, i32, i32),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/practice_2-6b8d555a53f60034
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c1514b315c4f8ae48539fc081c59296332b16343439714fc7d87e8c0a00b956b"`
[INFO] running `"docker" "rm" "-f" "c1514b315c4f8ae48539fc081c59296332b16343439714fc7d87e8c0a00b956b"`
[INFO] [stdout] c1514b315c4f8ae48539fc081c59296332b16343439714fc7d87e8c0a00b956b