[INFO] cloning repository https://github.com/java007hf/Rust_demo [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/java007hf/Rust_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjava007hf%2FRust_demo"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjava007hf%2FRust_demo'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ac34e741d74baae1795a7768be62bf26999ad2ca [INFO] testing java007hf/Rust_demo against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjava007hf%2FRust_demo" "/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/java007hf/Rust_demo 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/java007hf/Rust_demo [INFO] finished tweaking git repo https://github.com/java007hf/Rust_demo [INFO] tweaked toml for git repo https://github.com/java007hf/Rust_demo written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/java007hf/Rust_demo 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] 530822fda074c348524d609f15ca9bf2b2b35d0ba29ba5965d6626a17f7799ba [INFO] running `"docker" "start" "-a" "530822fda074c348524d609f15ca9bf2b2b35d0ba29ba5965d6626a17f7799ba"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling libc v0.2.42 [INFO] [stderr] Compiling rand v0.4.2 [INFO] [stderr] Compiling rand v0.3.22 [INFO] [stderr] Compiling rust_demo v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/main.rs:214:14 [INFO] [stderr] | [INFO] [stderr] 214 | for x in (0..11) { [INFO] [stderr] | ^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `inferred_type` is assigned to, but never used [INFO] [stderr] --> src/main.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let mut inferred_type = 12; // Type i64 is inferred from another line [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = note: consider using `_inferred_type` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `inferred_type` is never read [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | inferred_type = 4294967296i64; [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: variable `mutable` is assigned to, but never used [INFO] [stderr] --> src/main.rs:23:9 [INFO] [stderr] | [INFO] [stderr] 23 | let mut mutable = 12; // Mutable `i32` [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_mutable` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `mutable` is never read [INFO] [stderr] --> src/main.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | mutable = 21; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `mutable` is never read [INFO] [stderr] --> src/main.rs:27:5 [INFO] [stderr] | [INFO] [stderr] 27 | mutable = 11; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `mutable` [INFO] [stderr] --> src/main.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | let mutable = true; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let a = [1, 2, 3]; // a: [i32; 3] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `middle` [INFO] [stderr] --> src/main.rs:61:9 [INFO] [stderr] | [INFO] [stderr] 61 | let middle = &a[1..3]; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_middle` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/main.rs:67:10 [INFO] [stderr] | [INFO] [stderr] 67 | let (a, b, c) = y; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/main.rs:67:13 [INFO] [stderr] | [INFO] [stderr] 67 | let (a, b, c) = y; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:73:9 [INFO] [stderr] | [INFO] [stderr] 73 | let y = tuple.1; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:74:9 [INFO] [stderr] | [INFO] [stderr] 74 | let z = tuple.2; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `j` [INFO] [stderr] --> src/main.rs:91:9 [INFO] [stderr] | [INFO] [stderr] 91 | let j: i32 = 0; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> src/main.rs:119:9 [INFO] [stderr] | [INFO] [stderr] 119 | let v2 = v; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `diverges` [INFO] [stderr] --> src/main.rs:188:4 [INFO] [stderr] | [INFO] [stderr] 188 | fn diverges() -> ! { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 16 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.12s [INFO] running `"docker" "inspect" "530822fda074c348524d609f15ca9bf2b2b35d0ba29ba5965d6626a17f7799ba"` [INFO] running `"docker" "rm" "-f" "530822fda074c348524d609f15ca9bf2b2b35d0ba29ba5965d6626a17f7799ba"` [INFO] [stdout] 530822fda074c348524d609f15ca9bf2b2b35d0ba29ba5965d6626a17f7799ba [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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f5c76b1827bbd33fba4a981f2139f7697274ffccbb3fc2a379cc14f1a5f8884c [INFO] running `"docker" "start" "-a" "f5c76b1827bbd33fba4a981f2139f7697274ffccbb3fc2a379cc14f1a5f8884c"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rust_demo v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/main.rs:214:14 [INFO] [stderr] | [INFO] [stderr] 214 | for x in (0..11) { [INFO] [stderr] | ^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `inferred_type` is assigned to, but never used [INFO] [stderr] --> src/main.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let mut inferred_type = 12; // Type i64 is inferred from another line [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = note: consider using `_inferred_type` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `inferred_type` is never read [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | inferred_type = 4294967296i64; [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: variable `mutable` is assigned to, but never used [INFO] [stderr] --> src/main.rs:23:9 [INFO] [stderr] | [INFO] [stderr] 23 | let mut mutable = 12; // Mutable `i32` [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_mutable` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `mutable` is never read [INFO] [stderr] --> src/main.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | mutable = 21; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `mutable` is never read [INFO] [stderr] --> src/main.rs:27:5 [INFO] [stderr] | [INFO] [stderr] 27 | mutable = 11; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `mutable` [INFO] [stderr] --> src/main.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | let mutable = true; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let a = [1, 2, 3]; // a: [i32; 3] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `middle` [INFO] [stderr] --> src/main.rs:61:9 [INFO] [stderr] | [INFO] [stderr] 61 | let middle = &a[1..3]; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_middle` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/main.rs:67:10 [INFO] [stderr] | [INFO] [stderr] 67 | let (a, b, c) = y; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/main.rs:67:13 [INFO] [stderr] | [INFO] [stderr] 67 | let (a, b, c) = y; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:73:9 [INFO] [stderr] | [INFO] [stderr] 73 | let y = tuple.1; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:74:9 [INFO] [stderr] | [INFO] [stderr] 74 | let z = tuple.2; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `j` [INFO] [stderr] --> src/main.rs:91:9 [INFO] [stderr] | [INFO] [stderr] 91 | let j: i32 = 0; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> src/main.rs:119:9 [INFO] [stderr] | [INFO] [stderr] 119 | let v2 = v; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `diverges` [INFO] [stderr] --> src/main.rs:188:4 [INFO] [stderr] | [INFO] [stderr] 188 | fn diverges() -> ! { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 16 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.76s [INFO] running `"docker" "inspect" "f5c76b1827bbd33fba4a981f2139f7697274ffccbb3fc2a379cc14f1a5f8884c"` [INFO] running `"docker" "rm" "-f" "f5c76b1827bbd33fba4a981f2139f7697274ffccbb3fc2a379cc14f1a5f8884c"` [INFO] [stdout] f5c76b1827bbd33fba4a981f2139f7697274ffccbb3fc2a379cc14f1a5f8884c [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] 81edfdbb7d93e053254f161e64d41df12b92917cfa65304cf6021b214bd5ea52 [INFO] running `"docker" "start" "-a" "81edfdbb7d93e053254f161e64d41df12b92917cfa65304cf6021b214bd5ea52"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/main.rs:214:14 [INFO] [stderr] | [INFO] [stderr] 214 | for x in (0..11) { [INFO] [stderr] | ^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `inferred_type` is assigned to, but never used [INFO] [stderr] --> src/main.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let mut inferred_type = 12; // Type i64 is inferred from another line [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = note: consider using `_inferred_type` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `inferred_type` is never read [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | inferred_type = 4294967296i64; [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: variable `mutable` is assigned to, but never used [INFO] [stderr] --> src/main.rs:23:9 [INFO] [stderr] | [INFO] [stderr] 23 | let mut mutable = 12; // Mutable `i32` [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_mutable` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `mutable` is never read [INFO] [stderr] --> src/main.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | mutable = 21; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `mutable` is never read [INFO] [stderr] --> src/main.rs:27:5 [INFO] [stderr] | [INFO] [stderr] 27 | mutable = 11; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `mutable` [INFO] [stderr] --> src/main.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | let mutable = true; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let a = [1, 2, 3]; // a: [i32; 3] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `middle` [INFO] [stderr] --> src/main.rs:61:9 [INFO] [stderr] | [INFO] [stderr] 61 | let middle = &a[1..3]; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_middle` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/main.rs:67:10 [INFO] [stderr] | [INFO] [stderr] 67 | let (a, b, c) = y; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/main.rs:67:13 [INFO] [stderr] | [INFO] [stderr] 67 | let (a, b, c) = y; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:73:9 [INFO] [stderr] | [INFO] [stderr] 73 | let y = tuple.1; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:74:9 [INFO] [stderr] | [INFO] [stderr] 74 | let z = tuple.2; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `j` [INFO] [stderr] --> src/main.rs:91:9 [INFO] [stderr] | [INFO] [stderr] 91 | let j: i32 = 0; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> src/main.rs:119:9 [INFO] [stderr] | [INFO] [stderr] 119 | let v2 = v; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `diverges` [INFO] [stderr] --> src/main.rs:188:4 [INFO] [stderr] | [INFO] [stderr] 188 | fn diverges() -> ! { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 16 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_demo-162a6d8efab615c7 [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" "81edfdbb7d93e053254f161e64d41df12b92917cfa65304cf6021b214bd5ea52"` [INFO] running `"docker" "rm" "-f" "81edfdbb7d93e053254f161e64d41df12b92917cfa65304cf6021b214bd5ea52"` [INFO] [stdout] 81edfdbb7d93e053254f161e64d41df12b92917cfa65304cf6021b214bd5ea52