[INFO] cloning repository https://github.com/Ioka-Technologies/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ioka-Technologies/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoka-Technologies%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoka-Technologies%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 558e2e16fd23591ad1dc16784ee65ebcfeb36a75
[INFO] testing Ioka-Technologies/rust-playground/558e2e16fd23591ad1dc16784ee65ebcfeb36a75 against nightly-2024-10-28 for randomize-layout
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoka-Technologies%2Frust-playground" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ioka-Technologies/rust-playground on toolchain nightly-2024-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ioka-Technologies/rust-playground
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/Ioka-Technologies/rust-playground
[INFO] tweaked toml for git repo https://github.com/Ioka-Technologies/rust-playground written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Ioka-Technologies/rust-playground 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" "+nightly-2024-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dummy v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8ab7ea3ce769d27306489404b89554a693768becafefe83d925c23a673dfaf8
[INFO] running `Command { std: "docker" "start" "-a" "e8ab7ea3ce769d27306489404b89554a693768becafefe83d925c23a673dfaf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8ab7ea3ce769d27306489404b89554a693768becafefe83d925c23a673dfaf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8ab7ea3ce769d27306489404b89554a693768becafefe83d925c23a673dfaf8", kill_on_drop: false }`
[INFO] [stdout] e8ab7ea3ce769d27306489404b89554a693768becafefe83d925c23a673dfaf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c06a15731ffd625b989b81dc78e3c2425c4c9ceaa9297d603f47a698c201a146
[INFO] running `Command { std: "docker" "start" "-a" "c06a15731ffd625b989b81dc78e3c2425c4c9ceaa9297d603f47a698c201a146", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling deunicode v1.4.3
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rayon v1.9.0
[INFO] [stderr]    Compiling darling_core v0.20.8
[INFO] [stderr]    Compiling darling_macro v0.20.8
[INFO] [stderr]    Compiling darling v0.20.8
[INFO] [stderr]    Compiling dummy v0.7.0
[INFO] [stderr]    Compiling fake v2.9.2
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/lessons/threads.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::mpsc::{self, Receiver};
[INFO] [stdout]   |                       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Work` is never constructed
[INFO] [stdout]   --> src/lessons/threads.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Work {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `process` are never used
[INFO] [stdout]   --> src/lessons/threads.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Work {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 17 |     fn new() -> Work {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn process(&mut self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_jobs` is never used
[INFO] [stdout]   --> src/lessons/threads.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn process_jobs(recv_channel: Receiver<&mut Work>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_thread` is never used
[INFO] [stdout]   --> src/lessons/threads.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn simple_thread() -> thread::JoinHandle<Vec<i32>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutex_and_atomic_ref_counts` is never used
[INFO] [stdout]   --> src/lessons/threads.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn mutex_and_atomic_ref_counts(num_increments: usize) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LogLevel` is never used
[INFO] [stdout]  --> src/lessons/traits.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum LogLevel {
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LoggingService` is never constructed
[INFO] [stdout]   --> src/lessons/traits.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct LoggingService {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_level`, `add_logger`, and `log` are never used
[INFO] [stdout]   --> src/lessons/traits.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl LoggingService {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 21 |     fn new(level: LogLevel) -> LoggingService {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn set_level(&'_ mut self, level: LogLevel) -> &'_ mut Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn add_logger(&'_ mut self, logger: Rc<dyn Logger>) -> &'_ mut Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn log(&self, level: LogLevel, message: &str) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestLogger` is never constructed
[INFO] [stdout]   --> src/lessons/traits.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct TestLogger {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lessons/traits.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl TestLogger {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 52 |     fn new() -> TestLogger {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/lessons/chaining.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             MEMBERS.clear();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/lessons/chaining.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 | /                 MEMBERS.insert(
[INFO] [stdout] 43 | |                     i,
[INFO] [stdout] 44 | |                     Member::new(i, FirstName(EN).fake(), FreeEmail(EN).fake()),
[INFO] [stdout] 45 | |                 );
[INFO] [stdout]    | |_________________^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/lessons/chaining.rs:95:30
[INFO] [stdout]    |
[INFO] [stdout] 95 |             if let Some(m) = MEMBERS.get_mut(&arg.id) {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]    --> src/lessons/chaining.rs:107:18
[INFO] [stdout]     |
[INFO] [stdout] 107 |         unsafe { MEMBERS.values().collect() }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.96s
[INFO] running `Command { std: "docker" "inspect" "c06a15731ffd625b989b81dc78e3c2425c4c9ceaa9297d603f47a698c201a146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c06a15731ffd625b989b81dc78e3c2425c4c9ceaa9297d603f47a698c201a146", kill_on_drop: false }`
[INFO] [stdout] c06a15731ffd625b989b81dc78e3c2425c4c9ceaa9297d603f47a698c201a146
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7aa5676e74f8b57727be9453821314b5eed6fc9f33a59010290233b103ac28f3
[INFO] running `Command { std: "docker" "start" "-a" "7aa5676e74f8b57727be9453821314b5eed6fc9f33a59010290233b103ac28f3", kill_on_drop: false }`
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[INFO] [stderr]    Compiling sealed v0.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
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[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling clap_derive v4.5.0
[INFO] [stderr]    Compiling smart-default v0.7.1
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[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling synthez-core v0.3.1
[INFO] [stderr]    Compiling globset v0.4.14
[INFO] [stderr]    Compiling cucumber-expressions v0.3.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling ignore v0.4.22
[INFO] [stderr]    Compiling tokio v1.36.0
[INFO] [stderr]    Compiling typed-builder v0.15.2
[INFO] [stderr]    Compiling pin-project v1.1.5
[INFO] [stderr]    Compiling synthez-codegen v0.3.1
[INFO] [stderr]    Compiling lazy-regex-proc_macros v3.1.0
[INFO] [stderr]    Compiling synthez v0.3.1
[INFO] [stderr]    Compiling cucumber-codegen v0.20.2
[INFO] [stderr]    Compiling globwalk v0.8.1
[INFO] [stderr]    Compiling darling_macro v0.20.8
[INFO] [stderr]    Compiling clap v4.5.2
[INFO] [stderr]    Compiling lazy-regex v3.1.0
[INFO] [stderr]    Compiling darling v0.20.8
[INFO] [stderr]    Compiling dummy v0.7.0
[INFO] [stderr]    Compiling fake v2.9.2
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/lessons/threads.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::mpsc::{self, Receiver};
[INFO] [stdout]   |                       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Work` is never constructed
[INFO] [stdout]   --> src/lessons/threads.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Work {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `process` are never used
[INFO] [stdout]   --> src/lessons/threads.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Work {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 17 |     fn new() -> Work {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn process(&mut self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_jobs` is never used
[INFO] [stdout]   --> src/lessons/threads.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn process_jobs(recv_channel: Receiver<&mut Work>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_thread` is never used
[INFO] [stdout]   --> src/lessons/threads.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn simple_thread() -> thread::JoinHandle<Vec<i32>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutex_and_atomic_ref_counts` is never used
[INFO] [stdout]   --> src/lessons/threads.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn mutex_and_atomic_ref_counts(num_increments: usize) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LogLevel` is never used
[INFO] [stdout]  --> src/lessons/traits.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum LogLevel {
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LoggingService` is never constructed
[INFO] [stdout]   --> src/lessons/traits.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct LoggingService {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_level`, `add_logger`, and `log` are never used
[INFO] [stdout]   --> src/lessons/traits.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl LoggingService {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 21 |     fn new(level: LogLevel) -> LoggingService {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn set_level(&'_ mut self, level: LogLevel) -> &'_ mut Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn add_logger(&'_ mut self, logger: Rc<dyn Logger>) -> &'_ mut Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn log(&self, level: LogLevel, message: &str) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestLogger` is never constructed
[INFO] [stdout]   --> src/lessons/traits.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct TestLogger {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lessons/traits.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl TestLogger {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 52 |     fn new() -> TestLogger {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/lessons/chaining.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             MEMBERS.clear();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/lessons/chaining.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 | /                 MEMBERS.insert(
[INFO] [stdout] 43 | |                     i,
[INFO] [stdout] 44 | |                     Member::new(i, FirstName(EN).fake(), FreeEmail(EN).fake()),
[INFO] [stdout] 45 | |                 );
[INFO] [stdout]    | |_________________^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/lessons/chaining.rs:95:30
[INFO] [stdout]    |
[INFO] [stdout] 95 |             if let Some(m) = MEMBERS.get_mut(&arg.id) {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]    --> src/lessons/chaining.rs:107:18
[INFO] [stdout]     |
[INFO] [stdout] 107 |         unsafe { MEMBERS.values().collect() }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling gherkin v0.14.0
[INFO] [stderr]    Compiling cucumber v0.20.2
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/lessons/chaining.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             MEMBERS.clear();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/lessons/chaining.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 | /                 MEMBERS.insert(
[INFO] [stdout] 43 | |                     i,
[INFO] [stdout] 44 | |                     Member::new(i, FirstName(EN).fake(), FreeEmail(EN).fake()),
[INFO] [stdout] 45 | |                 );
[INFO] [stdout]    | |_________________^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/lessons/chaining.rs:95:30
[INFO] [stdout]    |
[INFO] [stdout] 95 |             if let Some(m) = MEMBERS.get_mut(&arg.id) {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]    --> src/lessons/chaining.rs:107:18
[INFO] [stdout]     |
[INFO] [stdout] 107 |         unsafe { MEMBERS.values().collect() }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]   --> src/lessons/threads.rs:92:22
[INFO] [stdout]    |
[INFO] [stdout] 92 |             unsafe { WORKS.push(Work::new()) };
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stdout]    --> src/lessons/threads.rs:106:30
[INFO] [stdout]     |
[INFO] [stdout] 106 |         for work in unsafe { WORKS.iter_mut() } {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static is discouraged
[INFO] [stdout]    --> src/lessons/threads.rs:116:30
[INFO] [stdout]     |
[INFO] [stdout] 116 |         for work in unsafe { WORKS.iter() } {
[INFO] [stdout]     |                              ^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 17.48s
[INFO] running `Command { std: "docker" "inspect" "7aa5676e74f8b57727be9453821314b5eed6fc9f33a59010290233b103ac28f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aa5676e74f8b57727be9453821314b5eed6fc9f33a59010290233b103ac28f3", kill_on_drop: false }`
[INFO] [stdout] 7aa5676e74f8b57727be9453821314b5eed6fc9f33a59010290233b103ac28f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a0ed425676d5c12276856cc966feed32e6f43dc38bb92c473cbddd3b694866fb
[INFO] running `Command { std: "docker" "start" "-a" "a0ed425676d5c12276856cc966feed32e6f43dc38bb92c473cbddd3b694866fb", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/lessons/threads.rs:2:23
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::sync::mpsc::{self, Receiver};
[INFO] [stderr]   |                       ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Work` is never constructed
[INFO] [stderr]   --> src/lessons/threads.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | struct Work {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `process` are never used
[INFO] [stderr]   --> src/lessons/threads.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | impl Work {
[INFO] [stderr]    | --------- associated items in this implementation
[INFO] [stderr] 17 |     fn new() -> Work {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 |     pub fn process(&mut self) {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `process_jobs` is never used
[INFO] [stderr]   --> src/lessons/threads.rs:32:4
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn process_jobs(recv_channel: Receiver<&mut Work>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `simple_thread` is never used
[INFO] [stderr]   --> src/lessons/threads.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn simple_thread() -> thread::JoinHandle<Vec<i32>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `mutex_and_atomic_ref_counts` is never used
[INFO] [stderr]   --> src/lessons/threads.rs:52:4
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn mutex_and_atomic_ref_counts(num_increments: usize) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `LogLevel` is never used
[INFO] [stderr]  --> src/lessons/traits.rs:4:6
[INFO] [stderr]   |
[INFO] [stderr] 4 | enum LogLevel {
[INFO] [stderr]   |      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `LoggingService` is never constructed
[INFO] [stderr]   --> src/lessons/traits.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | struct LoggingService {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `set_level`, `add_logger`, and `log` are never used
[INFO] [stderr]   --> src/lessons/traits.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | impl LoggingService {
[INFO] [stderr]    | ------------------- associated items in this implementation
[INFO] [stderr] 21 |     fn new(level: LogLevel) -> LoggingService {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 28 |     fn set_level(&'_ mut self, level: LogLevel) -> &'_ mut Self {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 33 |     fn add_logger(&'_ mut self, logger: Rc<dyn Logger>) -> &'_ mut Self {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 38 |     fn log(&self, level: LogLevel, message: &str) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TestLogger` is never constructed
[INFO] [stderr]   --> src/lessons/traits.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 | struct TestLogger {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/lessons/traits.rs:52:8
[INFO] [stderr]    |
[INFO] [stderr] 51 | impl TestLogger {
[INFO] [stderr]    | --------------- associated function in this implementation
[INFO] [stderr] 52 |     fn new() -> TestLogger {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stderr]   --> src/lessons/chaining.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             MEMBERS.clear();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stderr]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stderr]   --> src/lessons/chaining.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 | /                 MEMBERS.insert(
[INFO] [stderr] 43 | |                     i,
[INFO] [stderr] 44 | |                     Member::new(i, FirstName(EN).fake(), FreeEmail(EN).fake()),
[INFO] [stderr] 45 | |                 );
[INFO] [stderr]    | |_________________^ mutable reference to mutable static
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stderr] 
[INFO] [stderr] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stderr]   --> src/lessons/chaining.rs:95:30
[INFO] [stderr]    |
[INFO] [stderr] 95 |             if let Some(m) = MEMBERS.get_mut(&arg.id) {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stderr] 
[INFO] [stderr] warning: creating a shared reference to mutable static is discouraged
[INFO] [stderr]    --> src/lessons/chaining.rs:107:18
[INFO] [stderr]     |
[INFO] [stderr] 107 |         unsafe { MEMBERS.values().collect() }
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stderr] 
[INFO] [stderr] warning: `playground` (lib) generated 15 warnings (run `cargo fix --lib -p playground` to apply 1 suggestion)
[INFO] [stderr] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stderr]   --> src/lessons/threads.rs:92:22
[INFO] [stderr]    |
[INFO] [stderr] 92 |             unsafe { WORKS.push(Work::new()) };
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stderr] 
[INFO] [stderr] warning: creating a mutable reference to mutable static is discouraged
[INFO] [stderr]    --> src/lessons/threads.rs:106:30
[INFO] [stderr]     |
[INFO] [stderr] 106 |         for work in unsafe { WORKS.iter_mut() } {
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stderr] 
[INFO] [stderr] warning: creating a shared reference to mutable static is discouraged
[INFO] [stderr]    --> src/lessons/threads.rs:116:30
[INFO] [stderr]     |
[INFO] [stderr] 116 |         for work in unsafe { WORKS.iter() } {
[INFO] [stderr]     |                              ^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stderr] 
[INFO] [stderr] warning: `playground` (lib test) generated 7 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/playground-16ac539cf3eb1943)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test lessons::borrow::tests::test_alter_vec ... ok
[INFO] [stdout] test lessons::borrow::tests::test_other_test ... ok
[INFO] [stdout] test lessons::borrow::tests::test_other_test2 ... ok
[INFO] [stdout] test lessons::traits::tests::test_logger ... ok
[INFO] [stdout] test utils::add::tests::test_do_add ... ok
[INFO] [stdout] test lessons::chaining::tests::test_happy_day ... ok
[INFO] [stdout] test lessons::chaining::tests::test_not_found ... ok
[INFO] [stdout] test lessons::chaining::tests::test_internal_error ... ok
[INFO] [stdout] test lessons::threads::tests::test_simple_thread ... ok
[INFO] [stdout] test lessons::threads::tests::test_mutex_and_atomic_ref_counts ... ok
[INFO] [stdout] test lessons::threads::tests::test_simple_channels ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/playground-03c74f5cb3ab45c4)
[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 tests/integration.rs (/opt/rustwide/target/debug/deps/integration-2a6c224a666c512a)
[INFO] [stdout] Feature: Vector alterations without table
[INFO] [stdout]   Scenario: Check altering a vector works as expected
[INFO] [stdout]    ✔  Given an initial vector with 3 elements
[INFO] [stdout]    ✔  When I attempt to alter the vector and specify 5 minimum elements
[INFO] [stdout]    ✔  Then the vector has 5 elements and has been altered the expected amount of times
[INFO] [stdout] [Summary]
[INFO] [stdout] 1 feature
[INFO] [stdout] 1 scenario (1 passed)
[INFO] [stdout] 3 steps (3 passed)
[INFO] [stdout] Feature: Vector alterations with table
[INFO] [stdout]   Scenario: Check altering a vector with various initial elements
[INFO] [stdout]    ✔  Given an initial vector with the following number of elements
[INFO] [stdout]        | initial_elements |
[INFO] [stdout]        | 0                |
[INFO] [stdout]        | 1                |
[INFO] [stdout]        | 2                |
[INFO] [stdout]        | 3                |
[INFO] [stdout]    ✔  When I attempt to alter the vector with a given minimum
[INFO] [stdout]        | initial_elements | minimum |
[INFO] [stdout]        | 0                | 2       |
[INFO] [stdout]        | 1                | 0       |
[INFO] [stdout]        | 2                | 1       |
[INFO] [stdout]        | 3                | 4       |
[INFO] [stdout]    ✔  Then the vector has the following number of elements
[INFO] [stdout]        | initial_elements | expected |
[INFO] [stdout]        | 0                | 2        |
[INFO] [stdout]        | 1                | 2        |
[INFO] [stdout]        | 2                | 3        |
[INFO] [stdout]        | 3                | 4        |
[INFO] [stdout] [Summary]
[INFO] [stdout] 1 feature
[INFO] [stdout] 1 scenario (1 passed)
[INFO] [stdout] 3 steps (3 passed)
[INFO] [stderr]    Doc-tests playground
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/utils/add.rs - utils::add::do_add (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a0ed425676d5c12276856cc966feed32e6f43dc38bb92c473cbddd3b694866fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0ed425676d5c12276856cc966feed32e6f43dc38bb92c473cbddd3b694866fb", kill_on_drop: false }`
[INFO] [stdout] a0ed425676d5c12276856cc966feed32e6f43dc38bb92c473cbddd3b694866fb
