[INFO] cloning repository https://github.com/nw-wood/rust_book_workspace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nw-wood/rust_book_workspace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnw-wood%2Frust_book_workspace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnw-wood%2Frust_book_workspace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 962db9da0cb2e1039578f83dca59e72ee40a2960
[INFO] fixing nw-wood/rust_book_workspace against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=end=2015,2024 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnw-wood%2Frust_book_workspace" "/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/nw-wood/rust_book_workspace
[INFO] finished tweaking git repo https://github.com/nw-wood/rust_book_workspace
[INFO] tweaked toml for git repo https://github.com/nw-wood/rust_book_workspace written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nw-wood/rust_book_workspace on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nw-wood/rust_book_workspace 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1ed484055c5b66629596d2413546eb2ce03acdbd51d579f334660735e1a50e19
[INFO] running `Command { std: "docker" "start" "1ed484055c5b66629596d2413546eb2ce03acdbd51d579f334660735e1a50e19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1ed484055c5b66629596d2413546eb2ce03acdbd51d579f334660735e1a50e19" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ed484055c5b66629596d2413546eb2ce03acdbd51d579f334660735e1a50e19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1ed484055c5b66629596d2413546eb2ce03acdbd51d579f334660735e1a50e19" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=end=2015,2024", kill_on_drop: false }`
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating _10_generic_types_traits_and_lifetimes/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating rust_book_utilities/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _11_writing_automated_tests/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _12_building_a_command_line_program/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _13_iterators_and_closures/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _14_cargo_and_crates_io/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _15_smart_pointers/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _16_fearless_concurrency/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _17_object_oreinted_programming_in_rust/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _18_patterns_and_matching/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _19_advanced_features/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _20_building_a_multithreaded_web_server/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _21_appendix/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _2_programming_a_guessing_game/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _3_common_programming_concepts/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _4_understanding_ownership/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _5_using_structs_to_structure_related_data/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _6_enums_and_pattern_matching/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _7_packages_crates_and_modules/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _8_common_collections/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _9_error_handling/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating rust_book_run/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]    Migrating _1_getting_started/Cargo.toml from 2021 edition to 2024
[INFO] [stderr]     Checking rust_book_utilities v0.1.0 (/opt/rustwide/workdir/rust_book_utilities)
[INFO] [stderr]    Migrating rust_book_utilities/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking rust_list v0.2.0
[INFO] [stderr]     Checking _20_building_a_multithreaded_web_server v0.1.0 (/opt/rustwide/workdir/_20_building_a_multithreaded_web_server)
[INFO] [stderr]     Checking _6_enums_and_pattern_matching v0.1.0 (/opt/rustwide/workdir/_6_enums_and_pattern_matching)
[INFO] [stderr]     Checking _14_cargo_and_crates_io v0.1.0 (/opt/rustwide/workdir/_14_cargo_and_crates_io)
[INFO] [stderr]     Checking _12_building_a_command_line_program v0.1.0 (/opt/rustwide/workdir/_12_building_a_command_line_program)
[INFO] [stderr]     Checking _18_patterns_and_matching v0.1.0 (/opt/rustwide/workdir/_18_patterns_and_matching)
[INFO] [stderr]     Checking _3_common_programming_concepts v0.1.0 (/opt/rustwide/workdir/_3_common_programming_concepts)
[INFO] [stderr]     Checking _5_using_structs_to_structure_related_data v0.1.0 (/opt/rustwide/workdir/_5_using_structs_to_structure_related_data)
[INFO] [stderr]     Checking _11_writing_automated_tests v0.1.0 (/opt/rustwide/workdir/_11_writing_automated_tests)
[INFO] [stderr]     Checking _4_understanding_ownership v0.1.0 (/opt/rustwide/workdir/_4_understanding_ownership)
[INFO] [stderr]     Checking _7_packages_crates_and_modules v0.1.0 (/opt/rustwide/workdir/_7_packages_crates_and_modules)
[INFO] [stderr]     Checking _15_smart_pointers v0.1.0 (/opt/rustwide/workdir/_15_smart_pointers)
[INFO] [stderr]     Checking _17_object_oreinted_programming_in_rust v0.1.0 (/opt/rustwide/workdir/_17_object_oreinted_programming_in_rust)
[INFO] [stderr]     Checking _16_fearless_concurrency v0.1.0 (/opt/rustwide/workdir/_16_fearless_concurrency)
[INFO] [stderr]     Checking _19_advanced_features v0.1.0 (/opt/rustwide/workdir/_19_advanced_features)
[INFO] [stderr]    Migrating _14_cargo_and_crates_io/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _16_fearless_concurrency/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]     Checking _13_iterators_and_closures v0.1.0 (/opt/rustwide/workdir/_13_iterators_and_closures)
[INFO] [stderr]     Checking _8_common_collections v0.1.0 (/opt/rustwide/workdir/_8_common_collections)
[INFO] [stderr]    Migrating _3_common_programming_concepts/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]     Checking _9_error_handling v0.1.0 (/opt/rustwide/workdir/_9_error_handling)
[INFO] [stderr]    Migrating _7_packages_crates_and_modules/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]     Checking _10_generic_types_traits_and_lifetimes v0.1.0 (/opt/rustwide/workdir/_10_generic_types_traits_and_lifetimes)
[INFO] [stderr]    Migrating _11_writing_automated_tests/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]     Checking _21_appendix v0.1.0 (/opt/rustwide/workdir/_21_appendix)
[INFO] [stderr]    Migrating _15_smart_pointers/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]     Checking _1_getting_started v0.1.0 (/opt/rustwide/workdir/_1_getting_started)
[INFO] [stderr]    Migrating _17_object_oreinted_programming_in_rust/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _12_building_a_command_line_program/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _4_understanding_ownership/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _20_building_a_multithreaded_web_server/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _18_patterns_and_matching/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _5_using_structs_to_structure_related_data/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _6_enums_and_pattern_matching/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _19_advanced_features/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _13_iterators_and_closures/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _8_common_collections/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _9_error_handling/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _10_generic_types_traits_and_lifetimes/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating _21_appendix/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Migrating _1_getting_started/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking _2_programming_a_guessing_game v0.1.0 (/opt/rustwide/workdir/_2_programming_a_guessing_game)
[INFO] [stdout] warning: `impl _10_tests::_2_return_a_traited_type::Trait` will capture more lifetimes than possibly intended in edition 2024
[INFO] [stdout]    --> _10_generic_types_traits_and_lifetimes/src/lib.rs:295:50
[INFO] [stdout]     |
[INFO] [stdout] 295 |         fn returns_traited(item: &impl Trait) -> impl Trait {
[INFO] [stdout]     |                                                  ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: specifically, this lifetime is in scope but not mentioned in the type's bounds
[INFO] [stdout]    --> _10_generic_types_traits_and_lifetimes/src/lib.rs:295:34
[INFO] [stdout]     |
[INFO] [stdout] 295 |         fn returns_traited(item: &impl Trait) -> impl Trait {
[INFO] [stdout]     |                                  ^
[INFO] [stdout]     = note: all lifetimes in scope will be captured by `impl Trait`s in edition 2024
[INFO] [stdout] note: you could use a `use<...>` bound to explicitly specify captures, but argument-position `impl Trait`s are not nameable
[INFO] [stdout]    --> _10_generic_types_traits_and_lifetimes/src/lib.rs:295:35
[INFO] [stdout]     |
[INFO] [stdout] 295 |         fn returns_traited(item: &impl Trait) -> impl Trait {
[INFO] [stdout]     |                                   ^^^^^^^^^^
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/rpit-lifetime-capture.html>
[INFO] [stdout]     = note: `--force-warn impl-trait-overcaptures` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] help: use the precise capturing `use<...>` syntax to make the captures explicit
[INFO] [stdout]     |
[INFO] [stdout] 295 -         fn returns_traited(item: &impl Trait) -> impl Trait {
[INFO] [stdout] 295 +         fn returns_traited<T: Trait>(item: &T) -> impl Trait + use<T> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]    --> _19_advanced_features/src/lib.rs:104:24
[INFO] [stdout]     |
[INFO] [stdout] 104 |             assert_eq!(COUNTER, 3); //required again to assert equal to 3
[INFO] [stdout]     |                        ^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[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]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: `--force-warn static-mut-refs` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating _2_programming_a_guessing_game/src/lib.rs from 2021 edition to 2024
[INFO] [stderr]     Checking rust_book_run v0.1.0 (/opt/rustwide/workdir/rust_book_run)
[INFO] [stderr]    Migrating rust_book_run/src/main.rs from 2021 edition to 2024
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.97s
[INFO] [stderr] crater-edition-check: _10_generic_types_traits_and_lifetimes v0.1.0 (/opt/rustwide/workdir/_10_generic_types_traits_and_lifetimes) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: rust_book_utilities v0.1.0 (/opt/rustwide/workdir/rust_book_utilities) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _11_writing_automated_tests v0.1.0 (/opt/rustwide/workdir/_11_writing_automated_tests) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _12_building_a_command_line_program v0.1.0 (/opt/rustwide/workdir/_12_building_a_command_line_program) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _13_iterators_and_closures v0.1.0 (/opt/rustwide/workdir/_13_iterators_and_closures) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _14_cargo_and_crates_io v0.1.0 (/opt/rustwide/workdir/_14_cargo_and_crates_io) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _15_smart_pointers v0.1.0 (/opt/rustwide/workdir/_15_smart_pointers) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _16_fearless_concurrency v0.1.0 (/opt/rustwide/workdir/_16_fearless_concurrency) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _17_object_oreinted_programming_in_rust v0.1.0 (/opt/rustwide/workdir/_17_object_oreinted_programming_in_rust) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _18_patterns_and_matching v0.1.0 (/opt/rustwide/workdir/_18_patterns_and_matching) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _19_advanced_features v0.1.0 (/opt/rustwide/workdir/_19_advanced_features) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _20_building_a_multithreaded_web_server v0.1.0 (/opt/rustwide/workdir/_20_building_a_multithreaded_web_server) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _21_appendix v0.1.0 (/opt/rustwide/workdir/_21_appendix) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _2_programming_a_guessing_game v0.1.0 (/opt/rustwide/workdir/_2_programming_a_guessing_game) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _3_common_programming_concepts v0.1.0 (/opt/rustwide/workdir/_3_common_programming_concepts) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _4_understanding_ownership v0.1.0 (/opt/rustwide/workdir/_4_understanding_ownership) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _5_using_structs_to_structure_related_data v0.1.0 (/opt/rustwide/workdir/_5_using_structs_to_structure_related_data) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _6_enums_and_pattern_matching v0.1.0 (/opt/rustwide/workdir/_6_enums_and_pattern_matching) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _7_packages_crates_and_modules v0.1.0 (/opt/rustwide/workdir/_7_packages_crates_and_modules) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _8_common_collections v0.1.0 (/opt/rustwide/workdir/_8_common_collections) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _9_error_handling v0.1.0 (/opt/rustwide/workdir/_9_error_handling) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: rust_book_run v0.1.0 (/opt/rustwide/workdir/rust_book_run) updating edition from 2021 to 2024
[INFO] [stderr] crater-edition-check: _1_getting_started v0.1.0 (/opt/rustwide/workdir/_1_getting_started) updating edition from 2021 to 2024
[INFO] [stderr]     Checking rust_book_utilities v0.1.0 (/opt/rustwide/workdir/rust_book_utilities)
[INFO] [stderr]     Checking _12_building_a_command_line_program v0.1.0 (/opt/rustwide/workdir/_12_building_a_command_line_program)
[INFO] [stderr]     Checking _8_common_collections v0.1.0 (/opt/rustwide/workdir/_8_common_collections)
[INFO] [stderr]     Checking _15_smart_pointers v0.1.0 (/opt/rustwide/workdir/_15_smart_pointers)
[INFO] [stderr]     Checking _19_advanced_features v0.1.0 (/opt/rustwide/workdir/_19_advanced_features)
[INFO] [stderr]     Checking _14_cargo_and_crates_io v0.1.0 (/opt/rustwide/workdir/_14_cargo_and_crates_io)
[INFO] [stderr]     Checking _16_fearless_concurrency v0.1.0 (/opt/rustwide/workdir/_16_fearless_concurrency)
[INFO] [stderr]     Checking _11_writing_automated_tests v0.1.0 (/opt/rustwide/workdir/_11_writing_automated_tests)
[INFO] [stderr]     Checking _17_object_oreinted_programming_in_rust v0.1.0 (/opt/rustwide/workdir/_17_object_oreinted_programming_in_rust)
[INFO] [stderr]     Checking _5_using_structs_to_structure_related_data v0.1.0 (/opt/rustwide/workdir/_5_using_structs_to_structure_related_data)
[INFO] [stderr]     Checking _2_programming_a_guessing_game v0.1.0 (/opt/rustwide/workdir/_2_programming_a_guessing_game)
[INFO] [stderr]     Checking _6_enums_and_pattern_matching v0.1.0 (/opt/rustwide/workdir/_6_enums_and_pattern_matching)
[INFO] [stderr]     Checking _10_generic_types_traits_and_lifetimes v0.1.0 (/opt/rustwide/workdir/_10_generic_types_traits_and_lifetimes)
[INFO] [stderr]     Checking _21_appendix v0.1.0 (/opt/rustwide/workdir/_21_appendix)
[INFO] [stderr]     Checking _1_getting_started v0.1.0 (/opt/rustwide/workdir/_1_getting_started)
[INFO] [stderr]     Checking _18_patterns_and_matching v0.1.0 (/opt/rustwide/workdir/_18_patterns_and_matching)
[INFO] [stderr]     Checking _7_packages_crates_and_modules v0.1.0 (/opt/rustwide/workdir/_7_packages_crates_and_modules)
[INFO] [stderr]     Checking _13_iterators_and_closures v0.1.0 (/opt/rustwide/workdir/_13_iterators_and_closures)
[INFO] [stderr]     Checking _20_building_a_multithreaded_web_server v0.1.0 (/opt/rustwide/workdir/_20_building_a_multithreaded_web_server)
[INFO] [stderr]     Checking _9_error_handling v0.1.0 (/opt/rustwide/workdir/_9_error_handling)
[INFO] [stderr]     Checking _3_common_programming_concepts v0.1.0 (/opt/rustwide/workdir/_3_common_programming_concepts)
[INFO] [stderr]     Checking _4_understanding_ownership v0.1.0 (/opt/rustwide/workdir/_4_understanding_ownership)
[INFO] [stderr]     Checking rust_book_run v0.1.0 (/opt/rustwide/workdir/rust_book_run)
[INFO] [stdout] warning: struct `Button` is never constructed
[INFO] [stdout]   --> _17_object_oreinted_programming_in_rust/src/lib.rs:53:20
[INFO] [stdout]    |
[INFO] [stdout] 53 |         pub struct Button {}
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: creating a shared reference to mutable static
[INFO] [stdout]    --> _19_advanced_features/src/lib.rs:104:24
[INFO] [stdout]     |
[INFO] [stdout] 104 |             assert_eq!(COUNTER, 3); //required again to assert equal to 3
[INFO] [stdout]     |                        ^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[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]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: `#[deny(static_mut_refs)]` (part of `#[deny(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `_19_advanced_features` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1ed484055c5b66629596d2413546eb2ce03acdbd51d579f334660735e1a50e19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ed484055c5b66629596d2413546eb2ce03acdbd51d579f334660735e1a50e19", kill_on_drop: false }`
[INFO] [stdout] 1ed484055c5b66629596d2413546eb2ce03acdbd51d579f334660735e1a50e19
