[INFO] cloning repository https://github.com/khanra17/Rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/khanra17/Rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhanra17%2FRustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhanra17%2FRustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f491fd67ef52f360ceb3801a16ade543d28f962f [INFO] checking khanra17/Rustlings against master#c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 for pr-141352 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhanra17%2FRustlings" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/khanra17/Rustlings on toolchain c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml [INFO] started tweaking git repo https://github.com/khanra17/Rustlings [INFO] finished tweaking git repo https://github.com/khanra17/Rustlings [INFO] tweaked toml for git repo https://github.com/khanra17/Rustlings written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/khanra17/Rustlings 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" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "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] 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] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 68c93d6a48a84870532751c91aaa188d8883795603312d4730a05592d4a8f32d [INFO] running `Command { std: "docker" "start" "-a" "68c93d6a48a84870532751c91aaa188d8883795603312d4730a05592d4a8f32d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "68c93d6a48a84870532751c91aaa188d8883795603312d4730a05592d4a8f32d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "68c93d6a48a84870532751c91aaa188d8883795603312d4730a05592d4a8f32d", kill_on_drop: false }` [INFO] [stdout] 68c93d6a48a84870532751c91aaa188d8883795603312d4730a05592d4a8f32d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6d6553b4853552fb8609b10e22fd4d5f562e9fad4b7640a6846e20b3767cba3a [INFO] running `Command { std: "docker" "start" "-a" "6d6553b4853552fb8609b10e22fd4d5f562e9fad4b7640a6846e20b3767cba3a", 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] 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 proc-macro2 v1.0.49 [INFO] [stderr] Compiling quote v1.0.23 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Compiling unicode-ident v1.0.6 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling serde_derive v1.0.151 [INFO] [stderr] Compiling serde v1.0.151 [INFO] [stderr] Compiling serde_json v1.0.91 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Checking itoa v1.0.5 [INFO] [stderr] Compiling escargot v0.5.7 [INFO] [stderr] Checking ryu v1.0.12 [INFO] [stderr] Checking once_cell v1.16.0 [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking hello_macro v0.1.0 (/opt/rustwide/workdir/Macros/Procedural Macros/hello_macro) [INFO] [stderr] Checking fromstr v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Type Conversions/FromStr) [INFO] [stdout] warning: unused import: `ParseInt` [INFO] [stdout] --> Standard Library Types/Type Conversions/FromStr/src/lib.rs:4:54 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::ParsePersonError::{BadLen, Empty, NoName, ParseInt}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking license_it v0.1.0 (/opt/rustwide/workdir/Generic Types, Traits, and Lifetime/Traits/License It) [INFO] [stderr] Checking generics_in_structs v0.1.0 (/opt/rustwide/workdir/Generic Types, Traits, and Lifetime/Generic Data Types/Generics in Structs) [INFO] [stderr] Checking vec_trait v0.1.0 (/opt/rustwide/workdir/Generic Types, Traits, and Lifetime/Traits/Vec Trait) [INFO] [stderr] Checking lamp_with_switchers v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Smart Pointers/Switch the Lamp) [INFO] [stderr] Checking trait_bound_syntax v0.1.0 (/opt/rustwide/workdir/Generic Types, Traits, and Lifetime/Traits/Trait Bound Syntax) [INFO] [stderr] Checking loop_over_a_vector v0.1.0 (/opt/rustwide/workdir/Common Collections/Vectors/Loop Over a Vector) [INFO] [stderr] Checking try_from_into v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Type Conversions/Try From Into) [INFO] [stderr] Checking combine_traits v0.1.0 (/opt/rustwide/workdir/Generic Types, Traits, and Lifetime/Traits/Combine Traits) [INFO] [stderr] Checking advanced_errors v0.1.0 (/opt/rustwide/workdir/Error Handling/Errors Primer/Advanced Errors) [INFO] [stderr] Checking string_transformer v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/String Transformer) [INFO] [stderr] Checking declaring_a_vector v0.1.0 (/opt/rustwide/workdir/Common Collections/Vectors/Create a Vector on Your Own) [INFO] [stderr] Checking build_team_scores_table v0.1.0 (/opt/rustwide/workdir/Common Collections/Hashmaps/Build Scores Table) [INFO] [stdout] warning: unused import: `TryInto` [INFO] [stdout] --> Standard Library Types/Type Conversions/Try From Into/src/lib.rs:1:29 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::{TryFrom, TryInto}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking box_task v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Smart Pointers/Box Task) [INFO] [stderr] Checking declaring_a_hashmap v0.1.0 (/opt/rustwide/workdir/Common Collections/Hashmaps/Fruits Delivery) [INFO] [stderr] Checking loop_over_vector_with_iterators v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Iterators/Loop Over Vector With Iterators) [INFO] [stderr] Checking errors5 v0.1.0 (/opt/rustwide/workdir/Error Handling/Errors Primer/Multiple Errors) [INFO] [stderr] Checking count_progress v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Iterators/Count Progress) [INFO] [stderr] Checking advanced_errors_2 v0.1.0 (/opt/rustwide/workdir/Error Handling/Errors Primer/Advanced Errors 2) [INFO] [stderr] Checking trim_a_string v0.1.0 (/opt/rustwide/workdir/Understanding Ownership/The Slice Type/Trim a String) [INFO] [stderr] Checking capitalize_first v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Iterators/Capitalize first) [INFO] [stderr] Checking from_into v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Type Conversions/From Into) [INFO] [stderr] Checking process_some_strings v0.1.0 (/opt/rustwide/workdir/Common Collections/Strings/Process Some Strings) [INFO] [stderr] Checking count_typed_cells v0.1.0 (/opt/rustwide/workdir/Common Collections/Vectors/Count Typed Cells) [INFO] [stderr] Checking using_as v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Type Conversions/Using As) [INFO] [stderr] Checking asref_and_asmut v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Type Conversions/AsRef and AsMut) [INFO] [stderr] Checking modifying_a_hashmap v0.1.0 (/opt/rustwide/workdir/Common Collections/Hashmaps/More Fruits) [INFO] [stderr] Checking errors6 v0.1.0 (/opt/rustwide/workdir/Error Handling/Errors Primer/Custom Errors) [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> Error Handling/Errors Primer/Advanced Errors 2/src/lib.rs:49:13 [INFO] [stdout] | [INFO] [stdout] 49 | _ => write!(f, "unhandled error!"), [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] | [INFO] [stdout] note: multiple earlier patterns match some of the same values [INFO] [stdout] --> Error Handling/Errors Primer/Advanced Errors 2/src/lib.rs:49:13 [INFO] [stdout] | [INFO] [stdout] 44 | NoCity => write!(f, "no city name"), [INFO] [stdout] | ------ matches some of the same values [INFO] [stdout] 45 | Empty => write!(f, "empty input"), [INFO] [stdout] | ----- matches some of the same values [INFO] [stdout] 46 | BadLen => write!(f, "incorrect number of fields"), [INFO] [stdout] | ------ matches some of the same values [INFO] [stdout] 47 | ParseFloat(e) => write!(f, "error parsing temperature: {}", e), [INFO] [stdout] | ------------- matches some of the same values [INFO] [stdout] 48 | ParseInt(e) => write!(f, "error parsing year: {}", e), [INFO] [stdout] 49 | _ => write!(f, "unhandled error!"), [INFO] [stdout] | ^ ...and 1 other patterns collectively make this unreachable [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `year` [INFO] [stdout] --> Error Handling/Errors Primer/Advanced Errors 2/src/lib.rs:69:20 [INFO] [stdout] | [INFO] [stdout] 69 | [city, year, temp] if city.is_empty() => return Err(ParseClimateError::NoCity), [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_year` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `temp` [INFO] [stdout] --> Error Handling/Errors Primer/Advanced Errors 2/src/lib.rs:69:26 [INFO] [stdout] | [INFO] [stdout] 69 | [city, year, temp] if city.is_empty() => return Err(ParseClimateError::NoCity), [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_temp` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking add_conditions v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Conditions/Add Conditions) [INFO] [stderr] Checking string_trait v0.1.0 (/opt/rustwide/workdir/Generic Types, Traits, and Lifetime/Traits/String Trait) [INFO] [stderr] Checking compare_licenses v0.1.0 (/opt/rustwide/workdir/Generic Types, Traits, and Lifetime/Traits/Compare Licenses) [INFO] [stderr] Checking home_alone v0.1.0 (/opt/rustwide/workdir/Modules/Modules/Home Alone at Day X) [INFO] [stderr] Checking use_cow v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Smart Pointers/Use Cow) [INFO] [stderr] Checking workers_in_the_engine v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Smart Pointers/Workers in the Engine) [INFO] [stderr] Checking returning_result v0.1.0 (/opt/rustwide/workdir/Error Handling/Error Handling/Returning Result) [INFO] [stderr] Checking iterator3 v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Iterators/Iterator) [INFO] [stderr] Checking use_option v0.1.0 (/opt/rustwide/workdir/Common Collections/Options/Use Option) [INFO] [stderr] Checking integration_tests v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Running and Organizing Tests/Integration Tests) [INFO] [stderr] Checking iterators4 v0.1.0 (/opt/rustwide/workdir/Standard Library Types/Iterators/Factorial) [INFO] [stderr] Checking result1 v0.1.0 (/opt/rustwide/workdir/Error Handling/Errors Primer/Positive Nonzero Integer) [INFO] [stderr] Checking optional_value v0.1.0 (/opt/rustwide/workdir/Common Collections/Options/Optional Value) [INFO] [stderr] Checking submodules v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Running and Organizing Tests/Submodules in Integration Tests) [INFO] [stderr] Checking if_task v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Conditions/If Task) [INFO] [stderr] Checking calculate_price v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables, Functions, and Conditions Test/Calculate Price) [INFO] [stderr] Checking matching_result v0.1.0 (/opt/rustwide/workdir/Error Handling/Error Handling/Matching Result) [INFO] [stderr] Checking times_two_tests v0.1.0 (/opt/rustwide/workdir/Writing Automated Tests/Running and Organizing Tests/Times Two Tests) [INFO] [stdout] warning: unused import: `std::fmt::Error` [INFO] [stdout] --> Error Handling/Error Handling/Returning Result/src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/src/lib.rs:92:30 [INFO] [stdout] | [INFO] [stdout] 92 | feature(proc_macro_span, proc_macro_span_shrink) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/src/lib.rs:92:30 [INFO] [stdout] | [INFO] [stdout] 92 | feature(proc_macro_span, proc_macro_span_shrink) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num::ParseIntError` [INFO] [stdout] --> Error Handling/Errors Primer/Multiple Errors/src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::num::ParseIntError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num::ParseIntError` [INFO] [stdout] --> Error Handling/Errors Primer/Multiple Errors/src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::num::ParseIntError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking macro_arms v0.1.0 (/opt/rustwide/workdir/Macros/Declarative Macros/Macro Arms) [INFO] [stderr] Checking type_annotation_of_a_parameter v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Type Annotation of a Parameter) [INFO] [stderr] Checking the_slice_type v0.1.0 (/opt/rustwide/workdir/Understanding Ownership/The Slice Type/Intro) [INFO] [stderr] Checking external_linter v0.1.0 (/opt/rustwide/workdir/Introduction/Getting started/External Linter) [INFO] [stderr] Checking creating_a_new_hash_map v0.1.0 (/opt/rustwide/workdir/Common Collections/Hashmaps/Creating a New Hash Map) [INFO] [stderr] Checking macros2 v0.1.0 (/opt/rustwide/workdir/Macros/Declarative Macros/Declaring a Macro) [INFO] [stderr] Checking functions_intro v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Functions/Intro) [INFO] [stderr] Checking basic_datatypes_intro v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Basic Data Types/Intro) [INFO] [stdout] warning: unused variable: `word` [INFO] [stdout] --> Understanding Ownership/The Slice Type/Intro/src/main.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let word = first_word(&s); // word will get the value 5 [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking lifetime_going_out_of_scope v0.1.0 (/opt/rustwide/workdir/Generic Types, Traits, and Lifetime/Lifetimes/Lifetime Going Out of Scope) [INFO] [stderr] Checking summary_macros v0.1.0 (/opt/rustwide/workdir/Macros/Procedural Macros/Summary) [INFO] [stderr] Checking if_let v0.1.0 (/opt/rustwide/workdir/Structs, Methods, Enums, and Pattern Matching/Pattern Matching/If Let) [INFO] [stdout] For more information about this error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] Checking constants v0.1.0 (/opt/rustwide/workdir/Common Programming Concepts/Variables/Constants) [INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: variable `count` is assigned to, but never used [INFO] [stdout] --> Structs, Methods, Enums, and Pattern Matching/Pattern Matching/If Let/src/main.rs:21:13 [INFO] [stdout] | [INFO] [stdout] 21 | let mut count = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_count` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> Structs, Methods, Enums, and Pattern Matching/Pattern Matching/If Let/src/main.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | count += 1; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Alabama` and `Alaska` are never constructed [INFO] [stdout] --> Structs, Methods, Enums, and Pattern Matching/Pattern Matching/If Let/src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | enum UsState { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 3 | Alabama, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 4 | Alaska, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Penny`, `Nickel`, and `Quarter` are never constructed [INFO] [stdout] --> Structs, Methods, Enums, and Pattern Matching/Pattern Matching/If Let/src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | enum Coin { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 9 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 10 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 11 | Dime, [INFO] [stdout] 12 | Quarter(UsState), [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0597]: `string2` does not live long enough [INFO] [stdout] --> Generic Types, Traits, and Lifetime/Lifetimes/Lifetime Going Out of Scope/src/main.rs:15:44 [INFO] [stdout] | [INFO] [stdout] 13 | let string2 = String::from("xyz"); [INFO] [stdout] | ------- binding `string2` declared here [INFO] [stdout] 14 | // !!! ERROR: `string2` does not live long enough [INFO] [stdout] 15 | result = longest(string1.as_str(), string2.as_str()); [INFO] [stdout] | ^^^^^^^ borrowed value does not live long enough [INFO] [stdout] 16 | } [INFO] [stdout] | - `string2` dropped here while still borrowed [INFO] [stdout] 17 | println!("The longest string is {}", result); [INFO] [stdout] | ------ borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0597`. [INFO] [stdout] [INFO] [stderr] error: could not compile `lifetime_going_out_of_scope` (bin "lifetime_going_out_of_scope") due to 1 previous error [INFO] [stdout] For more information about this error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "6d6553b4853552fb8609b10e22fd4d5f562e9fad4b7640a6846e20b3767cba3a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6d6553b4853552fb8609b10e22fd4d5f562e9fad4b7640a6846e20b3767cba3a", kill_on_drop: false }` [INFO] [stdout] 6d6553b4853552fb8609b10e22fd4d5f562e9fad4b7640a6846e20b3767cba3a