[INFO] cloning repository https://github.com/nixwork/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nixwork/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixwork%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixwork%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 171aade3830da679d4974ff8fb9acbfb50e85167
[INFO] testing nixwork/learning-rust against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixwork%2Flearning-rust" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nixwork/learning-rust on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nixwork/learning-rust
[INFO] finished tweaking git repo https://github.com/nixwork/learning-rust
[INFO] tweaked toml for git repo https://github.com/nixwork/learning-rust written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/nixwork/learning-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6233387c207928f45e85fe250a4ce52ff55dd3e4910ff81f512244ac9c8a317
[INFO] running `Command { std: "docker" "start" "-a" "c6233387c207928f45e85fe250a4ce52ff55dd3e4910ff81f512244ac9c8a317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6233387c207928f45e85fe250a4ce52ff55dd3e4910ff81f512244ac9c8a317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6233387c207928f45e85fe250a4ce52ff55dd3e4910ff81f512244ac9c8a317", kill_on_drop: false }`
[INFO] [stdout] c6233387c207928f45e85fe250a4ce52ff55dd3e4910ff81f512244ac9c8a317
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e22e395cd2f45b4a9e8c47e599430f40fd28fcecc5fc1cc878a0f8d4ae27cf85
[INFO] running `Command { std: "docker" "start" "-a" "e22e395cd2f45b4a9e8c47e599430f40fd28fcecc5fc1cc878a0f8d4ae27cf85", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/bin/strings.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut s = String::new();
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/bin/strings.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let s = data.to_string();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/bin/strings.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let s = "initial contents".to_string();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/bin/strings.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let s = String::from("initial contents");
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]  --> src/bin/strings.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let hello = String::from("السلام عليكم");
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]  --> src/bin/strings.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let hello = String::from("Dobrý den");
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let hello = String::from("Hello");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let hello = String::from("שָׁלוֹם");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let hello = String::from("नमस्ते");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let hello = String::from("こんにちは");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let hello = String::from("안녕하세요");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let hello = String::from("你好");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let hello = String::from("Olá");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let hello = String::from("Здравствуйте");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let hello = String::from("Hola");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/strings.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut s = String::new();
[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: `scores`
[INFO] [stdout]   --> src/bin/hashmaps.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut scores: HashMap<_, _> =
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `score`
[INFO] [stdout]   --> src/bin/hashmaps.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let score = scores.get(&team_name);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]  --> src/bin/result.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let f = match f {
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/bin/result.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let f = File::open("hello.txt").unwrap_or_else(|error| {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v0`
[INFO] [stdout]  --> src/bin/vectors.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let v0: Vec<i32> = Vec::new();
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_v0`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/bin/result.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let f = File::open("hello.txt").unwrap();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/bin/result.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_username_from_file`
[INFO] [stdout]   --> src/bin/result.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn read_username_from_file() -> Result<String, io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_username_from_file_short`
[INFO] [stdout]   --> src/bin/result.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn read_username_from_file_short() -> Result<String, io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_username_from_file_shorter`
[INFO] [stdout]   --> src/bin/result.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn read_username_from_file_shorter() -> Result<String, io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_username_from_file_std`
[INFO] [stdout]   --> src/bin/result.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn read_username_from_file_std() -> Result<String, io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/hashmaps.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut scores: HashMap<_, _> =
[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: `v1`
[INFO] [stdout]  --> src/bin/vectors.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let v1 = vec![0, 1, 2];
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "e22e395cd2f45b4a9e8c47e599430f40fd28fcecc5fc1cc878a0f8d4ae27cf85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e22e395cd2f45b4a9e8c47e599430f40fd28fcecc5fc1cc878a0f8d4ae27cf85", kill_on_drop: false }`
[INFO] [stdout] e22e395cd2f45b4a9e8c47e599430f40fd28fcecc5fc1cc878a0f8d4ae27cf85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c52608932755888e0392d28c5dea29dd157c88126dfd3190fd04e645ef28507
[INFO] running `Command { std: "docker" "start" "-a" "4c52608932755888e0392d28c5dea29dd157c88126dfd3190fd04e645ef28507", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/bin/strings.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut s = String::new();
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/bin/strings.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let s = data.to_string();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/bin/strings.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let s = "initial contents".to_string();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/bin/strings.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let s = String::from("initial contents");
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]  --> src/bin/strings.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let hello = String::from("السلام عليكم");
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]  --> src/bin/strings.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let hello = String::from("Dobrý den");
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let hello = String::from("Hello");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let hello = String::from("שָׁלוֹם");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let hello = String::from("नमस्ते");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let hello = String::from("こんにちは");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let hello = String::from("안녕하세요");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let hello = String::from("你好");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let hello = String::from("Olá");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let hello = String::from("Здравствуйте");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/bin/strings.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let hello = String::from("Hola");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/strings.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut s = String::new();
[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: `v0`
[INFO] [stdout]  --> src/bin/vectors.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let v0: Vec<i32> = Vec::new();
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_v0`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v1`
[INFO] [stdout]  --> src/bin/vectors.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let v1 = vec![0, 1, 2];
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]  --> src/bin/result.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let f = match f {
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/bin/result.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let f = File::open("hello.txt").unwrap_or_else(|error| {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/bin/result.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let f = File::open("hello.txt").unwrap();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/bin/result.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_username_from_file`
[INFO] [stdout]   --> src/bin/result.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn read_username_from_file() -> Result<String, io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_username_from_file_short`
[INFO] [stdout]   --> src/bin/result.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn read_username_from_file_short() -> Result<String, io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_username_from_file_shorter`
[INFO] [stdout]   --> src/bin/result.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn read_username_from_file_shorter() -> Result<String, io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_username_from_file_std`
[INFO] [stdout]   --> src/bin/result.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn read_username_from_file_std() -> Result<String, io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]   --> src/bin/hashmaps.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut scores: HashMap<_, _> =
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `score`
[INFO] [stdout]   --> src/bin/hashmaps.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let score = scores.get(&team_name);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/hashmaps.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut scores: HashMap<_, _> =
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "4c52608932755888e0392d28c5dea29dd157c88126dfd3190fd04e645ef28507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c52608932755888e0392d28c5dea29dd157c88126dfd3190fd04e645ef28507", kill_on_drop: false }`
[INFO] [stdout] 4c52608932755888e0392d28c5dea29dd157c88126dfd3190fd04e645ef28507
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 49d2ef9b4635e6b7c8567b61b17e7f7eeac99735011f328abd7061c50d333a62
[INFO] running `Command { std: "docker" "start" "-a" "49d2ef9b4635e6b7c8567b61b17e7f7eeac99735011f328abd7061c50d333a62", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `scores`
[INFO] [stderr]   --> src/bin/hashmaps.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut scores: HashMap<_, _> =
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `score`
[INFO] [stderr]   --> src/bin/hashmaps.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let score = scores.get(&team_name);
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_score`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/hashmaps.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut scores: HashMap<_, _> =
[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: `learning-rust` (bin "hashmaps" test) generated 3 warnings
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/bin/strings.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let mut s = String::new();
[INFO] [stderr]   |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/bin/strings.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let s = data.to_string();
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/bin/strings.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let s = "initial contents".to_string();
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/bin/strings.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let s = String::from("initial contents");
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hello`
[INFO] [stderr]  --> src/bin/strings.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let hello = String::from("السلام عليكم");
[INFO] [stderr]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hello`
[INFO] [stderr]  --> src/bin/strings.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let hello = String::from("Dobrý den");
[INFO] [stderr]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hello`
[INFO] [stderr]   --> src/bin/strings.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let hello = String::from("Hello");
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hello`
[INFO] [stderr]   --> src/bin/strings.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let hello = String::from("שָׁלוֹם");
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hello`
[INFO] [stderr]   --> src/bin/strings.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let hello = String::from("नमस्ते");
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hello`
[INFO] [stderr]   --> src/bin/strings.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let hello = String::from("こんにちは");
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hello`
[INFO] [stderr]   --> src/bin/strings.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let hello = String::from("안녕하세요");
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hello`
[INFO] [stderr]   --> src/bin/strings.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let hello = String::from("你好");
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hello`
[INFO] [stderr]   --> src/bin/strings.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let hello = String::from("Olá");
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hello`
[INFO] [stderr]   --> src/bin/strings.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let hello = String::from("Здравствуйте");
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hello`
[INFO] [stderr]   --> src/bin/strings.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let hello = String::from("Hola");
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/bin/strings.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let mut s = String::new();
[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: `learning-rust` (bin "strings" test) generated 16 warnings
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]  --> src/bin/result.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let f = match f {
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/bin/result.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let f = File::open("hello.txt").unwrap_or_else(|error| {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/bin/result.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let f = File::open("hello.txt").unwrap();
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/bin/result.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_username_from_file`
[INFO] [stderr]   --> src/bin/result.rs:38:4
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn read_username_from_file() -> Result<String, io::Error> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_username_from_file_short`
[INFO] [stderr]   --> src/bin/result.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn read_username_from_file_short() -> Result<String, io::Error> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_username_from_file_shorter`
[INFO] [stderr]   --> src/bin/result.rs:61:4
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn read_username_from_file_shorter() -> Result<String, io::Error> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_username_from_file_std`
[INFO] [stderr]   --> src/bin/result.rs:69:4
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn read_username_from_file_std() -> Result<String, io::Error> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `learning-rust` (bin "result" test) generated 8 warnings
[INFO] [stderr] warning: unused variable: `v0`
[INFO] [stderr]  --> src/bin/vectors.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let v0: Vec<i32> = Vec::new();
[INFO] [stderr]   |         ^^ help: if this is intentional, prefix it with an underscore: `_v0`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v1`
[INFO] [stderr]  --> src/bin/vectors.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let v1 = vec![0, 1, 2];
[INFO] [stderr]   |         ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[INFO] [stderr] 
[INFO] [stderr] warning: `learning-rust` (bin "vectors" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/branches-ccedf30735466db7)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/functions-19c8bc6920acbbc2)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hashmaps-7cc3845876285670)
[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 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 (/opt/rustwide/target/debug/deps/loops-9baf251d061ff86f)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/panic-7d9046e2023b121b)
[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 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 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 (/opt/rustwide/target/debug/deps/rectangles-e11911ad682ea655)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/refs-6fd3af05cfd83aee)
[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 (/opt/rustwide/target/debug/deps/result-3d9a16b5817b1175)
[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 (/opt/rustwide/target/debug/deps/slice-6fd683e0bdad45ca)
[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 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 (/opt/rustwide/target/debug/deps/strings-be547d35c9563721)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vectors-131793c41402ff17)
[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 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" "49d2ef9b4635e6b7c8567b61b17e7f7eeac99735011f328abd7061c50d333a62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49d2ef9b4635e6b7c8567b61b17e7f7eeac99735011f328abd7061c50d333a62", kill_on_drop: false }`
[INFO] [stdout] 49d2ef9b4635e6b7c8567b61b17e7f7eeac99735011f328abd7061c50d333a62