[INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 1) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 2) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 3) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 4) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 5) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 6) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 7) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 8) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 9) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 10) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 11) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 12) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 13) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 14) [INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c6dd56078913e1052c1e80211bd7a494d92773cc [INFO] checking kashw2/The-Rust-Programming-Language against master#64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 for pr-143929 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/kashw2/The-Rust-Programming-Language [INFO] finished tweaking git repo https://github.com/kashw2/The-Rust-Programming-Language [INFO] tweaked toml for git repo https://github.com/kashw2/The-Rust-Programming-Language written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/kashw2/The-Rust-Programming-Language on toolchain 64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/kashw2/The-Rust-Programming-Language 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" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3f673195187e67d88d27137b16a673d8cea27ba2518461a5bc5452500c0e09e2 [INFO] running `Command { std: "docker" "start" "-a" "3f673195187e67d88d27137b16a673d8cea27ba2518461a5bc5452500c0e09e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3f673195187e67d88d27137b16a673d8cea27ba2518461a5bc5452500c0e09e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f673195187e67d88d27137b16a673d8cea27ba2518461a5bc5452500c0e09e2", kill_on_drop: false }` [INFO] [stdout] 3f673195187e67d88d27137b16a673d8cea27ba2518461a5bc5452500c0e09e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d9508ee410bf2c4f7acee7e4b1aa51a45d8ab72d0b2d9cdd3f4a1dfa25d5151b [INFO] running `Command { std: "docker" "start" "-a" "d9508ee410bf2c4f7acee7e4b1aa51a45d8ab72d0b2d9cdd3f4a1dfa25d5151b", 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 libc v0.2.152 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking minigrep v0.1.0 (/opt/rustwide/workdir/minigrep) [INFO] [stderr] Checking hello_world v0.1.0 (/opt/rustwide/workdir/hello_world) [INFO] [stderr] Checking running_automated_tests v0.1.0 (/opt/rustwide/workdir/running_automated_tests) [INFO] [stderr] Checking understanding_ownership v0.1.0 (/opt/rustwide/workdir/understanding_ownership) [INFO] [stderr] Checking hello_cargo v0.1.0 (/opt/rustwide/workdir/hello_cargo) [INFO] [stderr] Checking iterators_and_closures v0.1.0 (/opt/rustwide/workdir/iterators_and_closures) [INFO] [stdout] warning: unused imports: `LxWShape`, `Rectangle`, and `Shape` [INFO] [stdout] --> running_automated_tests/src/lib.rs:1:13 [INFO] [stdout] | [INFO] [stdout] 1 | use shape::{LxWShape, Rectangle, Shape}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking structure_related_data v0.1.0 (/opt/rustwide/workdir/structure_related_data) [INFO] [stderr] Checking error_handling v0.1.0 (/opt/rustwide/workdir/error_handling) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> minigrep/src/main.rs:42:23 [INFO] [stdout] | [INFO] [stdout] 42 | fn parse_config(args: &Vec) -> Config { [INFO] [stdout] | ^^^^^^^^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 42 | fn parse_config(args: &Vec) -> Config<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking enums_and_pattern_matching v0.1.0 (/opt/rustwide/workdir/enums_and_pattern_matching) [INFO] [stderr] Checking generics_traits_lifetimes v0.1.0 (/opt/rustwide/workdir/generics_traits_lifetimes) [INFO] [stderr] Checking common_programming_concepts v0.1.0 (/opt/rustwide/workdir/common_programming_concepts) [INFO] [stdout] warning: found module declaration for lib.rs [INFO] [stdout] --> iterators_and_closures/src/main.rs:7:1 [INFO] [stdout] | [INFO] [stdout] 7 | pub mod lib; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: lib.rs is the root of this crate's library target [INFO] [stdout] = help: to refer to it from other targets, use the library's name as the path [INFO] [stdout] = note: `#[warn(special_module_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Debug` [INFO] [stdout] --> iterators_and_closures/src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking common_collections v0.1.0 (/opt/rustwide/workdir/common_collections) [INFO] [stdout] warning: unused import: `Pointer` [INFO] [stdout] --> generics_traits_lifetimes/src/main.rs:3:36 [INFO] [stdout] | [INFO] [stdout] 3 | use std::fmt::{Display, Formatter, Pointer}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `propagated_file` [INFO] [stdout] --> error_handling/src/main.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let propagated_file = File::open("hi.txt")?; [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propagated_file` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `age` are never read [INFO] [stdout] --> structure_related_data/src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 3 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 4 | age: i8, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` 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: method `area` is never used [INFO] [stdout] --> structure_related_data/src/main.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 14 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 15 | fn area(&self) -> i32 { self.length * self.width } [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_largest_number` is never used [INFO] [stdout] --> generics_traits_lifetimes/src/main.rs:32:4 [INFO] [stdout] | [INFO] [stdout] 32 | fn find_largest_number(vec: &Vec) -> Option<&i32> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_author` is never used [INFO] [stdout] --> generics_traits_lifetimes/src/main.rs:86:4 [INFO] [stdout] | [INFO] [stdout] 86 | fn find_author(item: &impl Summary) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking growing_projects v0.1.0 (/opt/rustwide/workdir/growing_projects) [INFO] [stdout] warning: fields `name` and `age` are never read [INFO] [stdout] --> structure_related_data/src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 3 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 4 | age: i8, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` 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: method `area` is never used [INFO] [stdout] --> structure_related_data/src/main.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 14 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 15 | fn area(&self) -> i32 { self.length * self.width } [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> structure_related_data/src/main.rs:40:18 [INFO] [stdout] | [INFO] [stdout] 40 | struct Color(i16, i16, i16); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> minigrep/src/main.rs:42:23 [INFO] [stdout] | [INFO] [stdout] 42 | fn parse_config(args: &Vec) -> Config { [INFO] [stdout] | ^^^^^^^^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 42 | fn parse_config(args: &Vec) -> Config<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `age` are never read [INFO] [stdout] --> common_collections/src/main.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 26 | Female { [INFO] [stdout] | ------ fields in this variant [INFO] [stdout] 27 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 28 | age: i32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Person` 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: fields `name` and `age` are never read [INFO] [stdout] --> common_collections/src/main.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 30 | Male { [INFO] [stdout] | ---- fields in this variant [INFO] [stdout] 31 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 32 | age: i32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `first_name` and `last_name` are never read [INFO] [stdout] --> common_collections/src/main.rs:67:9 [INFO] [stdout] | [INFO] [stdout] 66 | struct Employee { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 67 | first_name: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 68 | last_name: String, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Employee` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: found module declaration for lib.rs [INFO] [stdout] --> iterators_and_closures/src/main.rs:7:1 [INFO] [stdout] | [INFO] [stdout] 7 | pub mod lib; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: lib.rs is the root of this crate's library target [INFO] [stdout] = help: to refer to it from other targets, use the library's name as the path [INFO] [stdout] = note: `#[warn(special_module_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Debug` [INFO] [stdout] --> iterators_and_closures/src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `propagated_file` [INFO] [stdout] --> error_handling/src/main.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let propagated_file = File::open("hi.txt")?; [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propagated_file` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Pointer` [INFO] [stdout] --> generics_traits_lifetimes/src/main.rs:3:36 [INFO] [stdout] | [INFO] [stdout] 3 | use std::fmt::{Display, Formatter, Pointer}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_largest_number` is never used [INFO] [stdout] --> generics_traits_lifetimes/src/main.rs:32:4 [INFO] [stdout] | [INFO] [stdout] 32 | fn find_largest_number(vec: &Vec) -> Option<&i32> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_author` is never used [INFO] [stdout] --> generics_traits_lifetimes/src/main.rs:86:4 [INFO] [stdout] | [INFO] [stdout] 86 | fn find_author(item: &impl Summary) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking getrandom v0.2.12 [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 guessing_game v0.1.0 (/opt/rustwide/workdir/guessing_game) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.01s [INFO] running `Command { std: "docker" "inspect" "d9508ee410bf2c4f7acee7e4b1aa51a45d8ab72d0b2d9cdd3f4a1dfa25d5151b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d9508ee410bf2c4f7acee7e4b1aa51a45d8ab72d0b2d9cdd3f4a1dfa25d5151b", kill_on_drop: false }` [INFO] [stdout] d9508ee410bf2c4f7acee7e4b1aa51a45d8ab72d0b2d9cdd3f4a1dfa25d5151b