[INFO] fetching crate andersonpgrep 0.1.0...
[INFO] testing andersonpgrep-0.1.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate andersonpgrep 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate andersonpgrep 0.1.0
[INFO] finished tweaking crates.io crate andersonpgrep 0.1.0
[INFO] tweaked toml for crates.io crate andersonpgrep 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate andersonpgrep 0.1.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate andersonpgrep 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3fa47ad4d2bbdf2d6261922ce77fa0274315a5139f71c7a8b316163b67c8cc4
[INFO] running `Command { std: "docker" "start" "-a" "f3fa47ad4d2bbdf2d6261922ce77fa0274315a5139f71c7a8b316163b67c8cc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3fa47ad4d2bbdf2d6261922ce77fa0274315a5139f71c7a8b316163b67c8cc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3fa47ad4d2bbdf2d6261922ce77fa0274315a5139f71c7a8b316163b67c8cc4", kill_on_drop: false }`
[INFO] [stdout] f3fa47ad4d2bbdf2d6261922ce77fa0274315a5139f71c7a8b316163b67c8cc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 4196099e4d7a103f0a4e5f78a833eb8bfdc284728e7f44a4386de4cc42f711a6
[INFO] running `Command { std: "docker" "start" "-a" "4196099e4d7a103f0a4e5f78a833eb8bfdc284728e7f44a4386de4cc42f711a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling andersonpgrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `expensive_closure`
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let expensive_closure = |num : u32| -> u32 {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_closure`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `add_one_closure`
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let add_one_closure = |x: u32| -> u32 {x + 1};
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_one_closure`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `add_one`
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let add_one  = |x: usize|  x + 1;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_one`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `add_one_three`
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let add_one_three  = |x: usize|  {x + 1};
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_one_three`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let mut list = vec![1,2,3,4];
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total`
[INFO] [stdout]   --> src/closures_and_iterators/iterators.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let total: i32 = v_iter.sum(); // after this line, we are not able to use v_iter because it has
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_total`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v2`
[INFO] [stdout]   --> src/closures_and_iterators/iterators.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let v2: Vec<_> = v.iter().map(|x| x + 3).collect();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_v2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `od_nums`
[INFO] [stdout]   --> src/closures_and_iterators/iterators.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let od_nums: Vec<_> = v3.iter().filter(|x| (**x) & 1 == 1).collect();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_od_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]  --> src/closures_and_iterators/iterators.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Shoe {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Shoe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "4196099e4d7a103f0a4e5f78a833eb8bfdc284728e7f44a4386de4cc42f711a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4196099e4d7a103f0a4e5f78a833eb8bfdc284728e7f44a4386de4cc42f711a6", kill_on_drop: false }`
[INFO] [stdout] 4196099e4d7a103f0a4e5f78a833eb8bfdc284728e7f44a4386de4cc42f711a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] fd499ae4c2aee4fd2e15e5100c61d679ae4481d39baabebc2ac54e0e5a062d04
[INFO] running `Command { std: "docker" "start" "-a" "fd499ae4c2aee4fd2e15e5100c61d679ae4481d39baabebc2ac54e0e5a062d04", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `expensive_closure`
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let expensive_closure = |num : u32| -> u32 {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_closure`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `add_one_closure`
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let add_one_closure = |x: u32| -> u32 {x + 1};
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_one_closure`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `add_one`
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let add_one  = |x: usize|  x + 1;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_one`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling andersonpgrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `add_one_three`
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let add_one_three  = |x: usize|  {x + 1};
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_one_three`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let mut list = vec![1,2,3,4];
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total`
[INFO] [stdout]   --> src/closures_and_iterators/iterators.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let total: i32 = v_iter.sum(); // after this line, we are not able to use v_iter because it has
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_total`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v2`
[INFO] [stdout]   --> src/closures_and_iterators/iterators.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let v2: Vec<_> = v.iter().map(|x| x + 3).collect();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_v2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `od_nums`
[INFO] [stdout]   --> src/closures_and_iterators/iterators.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let od_nums: Vec<_> = v3.iter().filter(|x| (**x) & 1 == 1).collect();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_od_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]  --> src/closures_and_iterators/iterators.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Shoe {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Shoe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expensive_closure`
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let expensive_closure = |num : u32| -> u32 {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_closure`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `add_one_closure`
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let add_one_closure = |x: u32| -> u32 {x + 1};
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_one_closure`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `add_one`
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let add_one  = |x: usize|  x + 1;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_one`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `add_one_three`
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let add_one_three  = |x: usize|  {x + 1};
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_one_three`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/closures_and_iterators/closures.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let mut list = vec![1,2,3,4];
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total`
[INFO] [stdout]   --> src/closures_and_iterators/iterators.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let total: i32 = v_iter.sum(); // after this line, we are not able to use v_iter because it has
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_total`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v2`
[INFO] [stdout]   --> src/closures_and_iterators/iterators.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let v2: Vec<_> = v.iter().map(|x| x + 3).collect();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_v2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `od_nums`
[INFO] [stdout]   --> src/closures_and_iterators/iterators.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let od_nums: Vec<_> = v3.iter().filter(|x| (**x) & 1 == 1).collect();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_od_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]  --> src/closures_and_iterators/iterators.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Shoe {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Shoe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "fd499ae4c2aee4fd2e15e5100c61d679ae4481d39baabebc2ac54e0e5a062d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd499ae4c2aee4fd2e15e5100c61d679ae4481d39baabebc2ac54e0e5a062d04", kill_on_drop: false }`
[INFO] [stdout] fd499ae4c2aee4fd2e15e5100c61d679ae4481d39baabebc2ac54e0e5a062d04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] f5daa708b34b63f5d9b9cc9300fa64d96304aadb50a9242e576a668487c8055b
[INFO] running `Command { std: "docker" "start" "-a" "f5daa708b34b63f5d9b9cc9300fa64d96304aadb50a9242e576a668487c8055b", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `expensive_closure`
[INFO] [stderr]   --> src/closures_and_iterators/closures.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let expensive_closure = |num : u32| -> u32 {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_closure`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `add_one_closure`
[INFO] [stderr]   --> src/closures_and_iterators/closures.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let add_one_closure = |x: u32| -> u32 {x + 1};
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_one_closure`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `add_one`
[INFO] [stderr]   --> src/closures_and_iterators/closures.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let add_one  = |x: usize|  x + 1;
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_one`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `add_one_three`
[INFO] [stderr]   --> src/closures_and_iterators/closures.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let add_one_three  = |x: usize|  {x + 1};
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_add_one_three`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/closures_and_iterators/closures.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |     let mut list = vec![1,2,3,4];
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `total`
[INFO] [stderr]   --> src/closures_and_iterators/iterators.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let total: i32 = v_iter.sum(); // after this line, we are not able to use v_iter because it has
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_total`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v2`
[INFO] [stderr]   --> src/closures_and_iterators/iterators.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let v2: Vec<_> = v.iter().map(|x| x + 3).collect();
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_v2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `od_nums`
[INFO] [stderr]   --> src/closures_and_iterators/iterators.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let od_nums: Vec<_> = v3.iter().filter(|x| (**x) & 1 == 1).collect();
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_od_nums`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Shoe` is never constructed
[INFO] [stderr]  --> src/closures_and_iterators/iterators.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Shoe {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Shoe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `andersonpgrep` (lib) generated 9 warnings (run `cargo fix --lib -p andersonpgrep` to apply 1 suggestion)
[INFO] [stderr] warning: `andersonpgrep` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/andersonpgrep-66285f373414ca25)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/andersonpgrep-3e98a1ff5fd50aef)
[INFO] [stderr]      Running tests/unit.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/unit-9983549c2b64cc2b)
[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] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::should_find_one_line ... ok
[INFO] [stdout] test tests::should_map_and_iterate_correctly ... ok
[INFO] [stdout] test tests::should_find_one_line_ignore_case ... ok
[INFO] [stdout] test tests::should_map_and_iterate_correctly_using_built_in ... ok
[INFO] [stdout] test tests::should_map_correctly ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f5daa708b34b63f5d9b9cc9300fa64d96304aadb50a9242e576a668487c8055b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5daa708b34b63f5d9b9cc9300fa64d96304aadb50a9242e576a668487c8055b", kill_on_drop: false }`
[INFO] [stdout] f5daa708b34b63f5d9b9cc9300fa64d96304aadb50a9242e576a668487c8055b