[INFO] cloning repository https://github.com/narenkulk/rust-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/narenkulk/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnarenkulk%2Frust-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnarenkulk%2Frust-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c1d7c43ce33ff86f91618301849253ca197d043
[INFO] testing narenkulk/rust-practice against beta-2025-10-28 for beta-1.92-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnarenkulk%2Frust-practice" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/narenkulk/rust-practice
[INFO] finished tweaking git repo https://github.com/narenkulk/rust-practice
[INFO] tweaked toml for git repo https://github.com/narenkulk/rust-practice written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/narenkulk/rust-practice on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/narenkulk/rust-practice 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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ff8ad955d0c7df956b0430dd167be701fcdb3688a445a191ff64779b8df0f8a
[INFO] running `Command { std: "docker" "start" "-a" "0ff8ad955d0c7df956b0430dd167be701fcdb3688a445a191ff64779b8df0f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ff8ad955d0c7df956b0430dd167be701fcdb3688a445a191ff64779b8df0f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ff8ad955d0c7df956b0430dd167be701fcdb3688a445a191ff64779b8df0f8a", kill_on_drop: false }`
[INFO] [stdout] 0ff8ad955d0c7df956b0430dd167be701fcdb3688a445a191ff64779b8df0f8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a399df31399bccb4f86d955f2609fea57e4d805294a1fdbb78b48fc42597191e
[INFO] running `Command { std: "docker" "start" "-a" "a399df31399bccb4f86d955f2609fea57e4d805294a1fdbb78b48fc42597191e", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling serde v1.0.175
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling serde_json v1.0.103
[INFO] [stderr]    Compiling serde_derive v1.0.175
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir/19_iterators)
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]  --> 19_iterators/src/lib.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Shoe {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoes_in_size` is never used
[INFO] [stdout]   --> 19_iterators/src/lib.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn shoes_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling generics v0.1.0 (/opt/rustwide/workdir/13_generics)
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir/17_minigrep)
[INFO] [stderr]    Compiling strum v0.17.1
[INFO] [stderr]    Compiling modules v0.1.0 (/opt/rustwide/workdir/09_modules)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/03_ownership)
[INFO] [stderr]    Compiling practice_concepts v0.1.0 (/opt/rustwide/workdir/05_control_flow)
[INFO] [stderr]    Compiling slices v0.1.0 (/opt/rustwide/workdir/04_slices)
[INFO] [stderr]    Compiling closure v0.1.0 (/opt/rustwide/workdir/18_closure)
[INFO] [stderr]    Compiling error_handling v0.1.0 (/opt/rustwide/workdir/12_error_handling)
[INFO] [stderr]    Compiling stack_heap v0.1.0 (/opt/rustwide/workdir/02_stack_heap)
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir/14_traits)
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> 18_closure/src/main.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     struct Rectangle {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 82 |         width: u32,
[INFO] [stdout] 83 |         height: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling vectors v0.1.0 (/opt/rustwide/workdir/10_vectors)
[INFO] [stderr]    Compiling str_String v0.1.0 (/opt/rustwide/workdir/06_str_string)
[INFO] [stderr]    Compiling writing_tests v0.1.0 (/opt/rustwide/workdir/16_writing_tests)
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> 16_writing_tests/src/lib.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_hold` is never used
[INFO] [stdout]   --> 16_writing_tests/src/lib.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rectangle {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 11 |     fn can_hold(self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling smart_pointers v0.1.0 (/opt/rustwide/workdir/20_smart_pointers)
[INFO] [stderr]    Compiling structure v0.1.0 (/opt/rustwide/workdir/07_structure)
[INFO] [stderr]    Compiling lifetimes v0.1.0 (/opt/rustwide/workdir/15_lifetimes)
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> 20_smart_pointers/src/main.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Cons(i32, Box<List>),
[INFO] [stdout]   |     ---- ^^^  ^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 5 -     Cons(i32, Box<List>),
[INFO] [stdout] 5 +     Cons((), ()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand v0.4.6
[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 rand v0.3.23
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/01_guessing_game)
[INFO] [stderr]    Compiling guessing_game2 v0.1.0 (/opt/rustwide/workdir/01a_guessing_game)
[INFO] [stderr]    Compiling strum_macros v0.17.1
[INFO] [stderr]    Compiling enum_example v0.1.0 (/opt/rustwide/workdir/08_enum_example)
[INFO] [stderr]    Compiling hash_map v0.1.0 (/opt/rustwide/workdir/11_hash_map)
[INFO] [stdout] warning: variants `Cent` and `Dollar` are never constructed
[INFO] [stdout]   --> 08_enum_example/src/main.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Coins {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout]  8 |     Quarter(CANProvince),
[INFO] [stdout]  9 |     Cent,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 10 |     Dollar,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Coins` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ipv4Addr` is never constructed
[INFO] [stdout]   --> 08_enum_example/src/main.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Ipv4Addr {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ipv6Addr` is never constructed
[INFO] [stdout]   --> 08_enum_example/src/main.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Ipv6Addr {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `IPAddr` is never used
[INFO] [stdout]   --> 08_enum_example/src/main.rs:25:6
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum IPAddr {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.35s
[INFO] running `Command { std: "docker" "inspect" "a399df31399bccb4f86d955f2609fea57e4d805294a1fdbb78b48fc42597191e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a399df31399bccb4f86d955f2609fea57e4d805294a1fdbb78b48fc42597191e", kill_on_drop: false }`
[INFO] [stdout] a399df31399bccb4f86d955f2609fea57e4d805294a1fdbb78b48fc42597191e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 188377f62d719d149eae9b1e0c6bd84315562685dae440dfa8da5051b39c4da6
[INFO] running `Command { std: "docker" "start" "-a" "188377f62d719d149eae9b1e0c6bd84315562685dae440dfa8da5051b39c4da6", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]  --> 19_iterators/src/lib.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Shoe {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoes_in_size` is never used
[INFO] [stdout]   --> 19_iterators/src/lib.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn shoes_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/01_guessing_game)
[INFO] [stderr]    Compiling writing_tests v0.1.0 (/opt/rustwide/workdir/16_writing_tests)
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> 16_writing_tests/src/lib.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_hold` is never used
[INFO] [stdout]   --> 16_writing_tests/src/lib.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rectangle {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 11 |     fn can_hold(self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling modules v0.1.0 (/opt/rustwide/workdir/09_modules)
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir/19_iterators)
[INFO] [stderr]    Compiling hash_map v0.1.0 (/opt/rustwide/workdir/11_hash_map)
[INFO] [stderr]    Compiling guessing_game2 v0.1.0 (/opt/rustwide/workdir/01a_guessing_game)
[INFO] [stderr]    Compiling enum_example v0.1.0 (/opt/rustwide/workdir/08_enum_example)
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir/17_minigrep)
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> 16_writing_tests/tests/integration_tests.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Guess {
[INFO] [stdout]   |        ----- field in this struct
[INFO] [stdout] 6 |     value: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `setup` is never used
[INFO] [stdout]  --> 16_writing_tests/tests/common/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn setup() {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling generics v0.1.0 (/opt/rustwide/workdir/13_generics)
[INFO] [stderr]    Compiling closure v0.1.0 (/opt/rustwide/workdir/18_closure)
[INFO] [stderr]    Compiling practice_concepts v0.1.0 (/opt/rustwide/workdir/05_control_flow)
[INFO] [stdout] warning: variants `Cent` and `Dollar` are never constructed
[INFO] [stdout]   --> 08_enum_example/src/main.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Coins {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout]  8 |     Quarter(CANProvince),
[INFO] [stdout]  9 |     Cent,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 10 |     Dollar,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Coins` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ipv4Addr` is never constructed
[INFO] [stdout]   --> 08_enum_example/src/main.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Ipv4Addr {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ipv6Addr` is never constructed
[INFO] [stdout]   --> 08_enum_example/src/main.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Ipv6Addr {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `IPAddr` is never used
[INFO] [stdout]   --> 08_enum_example/src/main.rs:25:6
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum IPAddr {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling slices v0.1.0 (/opt/rustwide/workdir/04_slices)
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir/14_traits)
[INFO] [stderr]    Compiling lifetimes v0.1.0 (/opt/rustwide/workdir/15_lifetimes)
[INFO] [stderr]    Compiling error_handling v0.1.0 (/opt/rustwide/workdir/12_error_handling)
[INFO] [stderr]    Compiling vectors v0.1.0 (/opt/rustwide/workdir/10_vectors)
[INFO] [stderr]    Compiling smart_pointers v0.1.0 (/opt/rustwide/workdir/20_smart_pointers)
[INFO] [stderr]    Compiling str_String v0.1.0 (/opt/rustwide/workdir/06_str_string)
[INFO] [stderr]    Compiling stack_heap v0.1.0 (/opt/rustwide/workdir/02_stack_heap)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/03_ownership)
[INFO] [stderr]    Compiling structure v0.1.0 (/opt/rustwide/workdir/07_structure)
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> 20_smart_pointers/src/main.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Cons(i32, Box<List>),
[INFO] [stdout]   |     ---- ^^^  ^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 5 -     Cons(i32, Box<List>),
[INFO] [stdout] 5 +     Cons((), ()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.66s
[INFO] running `Command { std: "docker" "inspect" "188377f62d719d149eae9b1e0c6bd84315562685dae440dfa8da5051b39c4da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "188377f62d719d149eae9b1e0c6bd84315562685dae440dfa8da5051b39c4da6", kill_on_drop: false }`
[INFO] [stdout] 188377f62d719d149eae9b1e0c6bd84315562685dae440dfa8da5051b39c4da6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4cd33fdd1ca663359d0946928b35c14411694deb76e353de14e86339fe426f76
[INFO] running `Command { std: "docker" "start" "-a" "4cd33fdd1ca663359d0946928b35c14411694deb76e353de14e86339fe426f76", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stdout] 
[INFO] [stderr] warning: struct `Rectangle` is never constructed
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> 16_writing_tests/src/lib.rs:5:8
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 5 | struct Rectangle {
[INFO] [stdout] 
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 0 tests
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: method `can_hold` is never used
[INFO] [stdout] 
[INFO] [stderr]   --> 16_writing_tests/src/lib.rs:11:8
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] running 0 tests
[INFO] [stderr] 10 | impl Rectangle {
[INFO] [stdout] 
[INFO] [stderr]    | -------------- method in this implementation
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 11 |     fn can_hold(self, other: &Rectangle) -> bool {
[INFO] [stdout] 
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] running 0 tests
[INFO] [stderr] warning: `writing_tests` (lib) generated 2 warnings
[INFO] [stdout] 
[INFO] [stderr] warning: struct `Shoe` is never constructed
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]  --> 19_iterators/src/lib.rs:7:8
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Shoe {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `shoes_in_size` is never used
[INFO] [stderr]   --> 19_iterators/src/lib.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn shoes_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `iterators` (lib) generated 2 warnings
[INFO] [stderr] warning: variants `Cent` and `Dollar` are never constructed
[INFO] [stderr]   --> 08_enum_example/src/main.rs:9:5
[INFO] [stderr]    |
[INFO] [stderr]  7 | enum Coins {
[INFO] [stderr]    |      ----- variants in this enum
[INFO] [stderr]  8 |     Quarter(CANProvince),
[INFO] [stderr]  9 |     Cent,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 10 |     Dollar,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Coins` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Ipv4Addr` is never constructed
[INFO] [stderr]   --> 08_enum_example/src/main.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | struct Ipv4Addr {}
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Ipv6Addr` is never constructed
[INFO] [stderr]   --> 08_enum_example/src/main.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | struct Ipv6Addr {}
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `IPAddr` is never used
[INFO] [stderr]   --> 08_enum_example/src/main.rs:25:6
[INFO] [stderr]    |
[INFO] [stderr] 25 | enum IPAddr {
[INFO] [stderr]    |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]  --> 16_writing_tests/tests/integration_tests.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Guess {
[INFO] [stderr]   |        ----- field in this struct
[INFO] [stderr] 6 |     value: i32,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `setup` is never used
[INFO] [stderr]  --> 16_writing_tests/tests/common/mod.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn setup() {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `enum_example` (bin "enum_example" test) generated 4 warnings
[INFO] [stderr] warning: `writing_tests` (test "integration_tests") generated 2 warnings
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]  --> 20_smart_pointers/src/main.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Cons(i32, Box<List>),
[INFO] [stderr]   |     ---- ^^^  ^^^^^^^^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     fields in this variant
[INFO] [stderr]   |
[INFO] [stderr]   = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]   |
[INFO] [stderr] 5 -     Cons(i32, Box<List>),
[INFO] [stderr] 5 +     Cons((), ()),
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: `smart_pointers` (bin "smart_pointers" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/closure-3a3b2271e8661b1c)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/enum_example-4356de6169ae910e)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/error_handling-511201a7307746cc)
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/generics-4f8a1af9fcfc6823)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/generics-30d61e56f0aace0e)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/guessing_game-be051218e7528c67)
[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 src/main.rs (/opt/rustwide/target/debug/deps/guessing_game2-bbf3913b0c94c668)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hash_map-cee786832c36f803)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_new_guess_valid_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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 src/lib.rs (/opt/rustwide/target/debug/deps/iterators-09aa54edcc867c8f)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test iterators_demonstration ... ok
[INFO] [stdout] test matching_shoes ... ok
[INFO] [stdout] test iterators_sum ... ok
[INFO] [stdout] test iter_mut_demo ... ok
[INFO] [stdout] test into_iter_demo ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 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/debug/deps/iterators-5fb3441ab3d541db)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lifetimes-56092e25978db3a0)
[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 src/lib.rs (/opt/rustwide/target/debug/deps/minigrep-5a56951582a45a3f)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::one_result ... ok
[INFO] [stdout] test tests::search_case_insensitive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 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/debug/deps/minigrep-de2ccf97218fec88)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/modules-efa0532869d7161f)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/modules-51d63cbb8957f546)
[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 src/main.rs (/opt/rustwide/target/debug/deps/ownership-c5e5baf81f1701b2)
[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/debug/deps/practice_concepts-5495cc0278485555)
[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/debug/deps/slices-9b263748dce011cb)
[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/debug/deps/smart_pointers-be4b74f61f787b33)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_my_box ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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/debug/deps/stack_heap-b1a7a769e1cbef20)
[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/debug/deps/str_String-e0bb1b89a704852f)
[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/debug/deps/structure-87fe5dfb20f5e1c3)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/traits-b31ee86ee72f5037)
[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 src/main.rs (/opt/rustwide/target/debug/deps/vectors-967bcde3c2e70bf5)
[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/lib.rs (/opt/rustwide/target/debug/deps/writing_tests-257053336b037524)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::exploration ... ok
[INFO] [stdout] test tests::add_two_to_two ... ok
[INFO] [stdout] test tests::result_contains_carol ... ok
[INFO] [stdout] test tests::can_hold_rectangles ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-36f94f8b57009c59)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test it_adds_two ... ok
[INFO] [stdout] test guess_work_greater_than_100 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests generics
[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]    Doc-tests iterators
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test 19_iterators/src/lib.rs - Shoe (line 2) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests minigrep
[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]    Doc-tests modules
[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]    Doc-tests writing_tests
[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" "4cd33fdd1ca663359d0946928b35c14411694deb76e353de14e86339fe426f76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd33fdd1ca663359d0946928b35c14411694deb76e353de14e86339fe426f76", kill_on_drop: false }`
[INFO] [stdout] 4cd33fdd1ca663359d0946928b35c14411694deb76e353de14e86339fe426f76
