[INFO] cloning repository https://github.com/is-it-ayush/rust-concepts [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/is-it-ayush/rust-concepts" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis-it-ayush%2Frust-concepts", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis-it-ayush%2Frust-concepts'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0dc6f4585846be0241eb1ca963dee0b84e3c044c [INFO] testing is-it-ayush/rust-concepts against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis-it-ayush%2Frust-concepts" "/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/is-it-ayush/rust-concepts on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/is-it-ayush/rust-concepts [INFO] finished tweaking git repo https://github.com/is-it-ayush/rust-concepts [INFO] tweaked toml for git repo https://github.com/is-it-ayush/rust-concepts written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/is-it-ayush/rust-concepts 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "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] [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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d8049d9534e2a85f670806be3b342230f39a045ca21dd9fd5000b8c5a73e04e3 [INFO] running `Command { std: "docker" "start" "-a" "d8049d9534e2a85f670806be3b342230f39a045ca21dd9fd5000b8c5a73e04e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d8049d9534e2a85f670806be3b342230f39a045ca21dd9fd5000b8c5a73e04e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d8049d9534e2a85f670806be3b342230f39a045ca21dd9fd5000b8c5a73e04e3", kill_on_drop: false }` [INFO] [stdout] d8049d9534e2a85f670806be3b342230f39a045ca21dd9fd5000b8c5a73e04e3 [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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f82d396138b7d8b8240f4484e407385a180257f5d92e80c42a044333c7bd2157 [INFO] running `Command { std: "docker" "start" "-a" "f82d396138b7d8b8240f4484e407385a180257f5d92e80c42a044333c7bd2157", 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 data_types v0.1.0 (/opt/rustwide/workdir/data_types_and_control_flow) [INFO] [stderr] Compiling structs v0.1.0 (/opt/rustwide/workdir/structs) [INFO] [stderr] Compiling enums_and_pattern_matching v0.1.0 (/opt/rustwide/workdir/enums_and_pattern_matching) [INFO] [stderr] Compiling ownership v0.1.0 (/opt/rustwide/workdir/ownership) [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> ownership/src/main.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let s = String::from("hello"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> ownership/src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let y = x; // This will copy the value from x and store it in y. Rust has a copy trait stored on the stack. [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> ownership/src/main.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let c = b.clone(); // This will copy instead of moving the declaration. Cloning is expensive. [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> ownership/src/main.rs:95:9 [INFO] [stdout] | [INFO] [stdout] 95 | let mut a = String::from("Hello"); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `copy` is never used [INFO] [stdout] --> ownership/src/main.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | fn copy() { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `initial_ownership` is never used [INFO] [stdout] --> ownership/src/main.rs:43:4 [INFO] [stdout] | [INFO] [stdout] 43 | fn initial_ownership() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_ownership` is never used [INFO] [stdout] --> ownership/src/main.rs:52:4 [INFO] [stdout] | [INFO] [stdout] 52 | fn take_ownership(x: String) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `give_ownership` is never used [INFO] [stdout] --> ownership/src/main.rs:56:4 [INFO] [stdout] | [INFO] [stdout] 56 | fn give_ownership() -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_and_give_back_ownership` is never used [INFO] [stdout] --> ownership/src/main.rs:60:4 [INFO] [stdout] | [INFO] [stdout] 60 | fn take_and_give_back_ownership(x: String) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `referencing_and_not_moving` is never used [INFO] [stdout] --> ownership/src/main.rs:69:4 [INFO] [stdout] | [INFO] [stdout] 69 | fn referencing_and_not_moving(x: &String) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mutate_refrencing_without_taking_ownership` is never used [INFO] [stdout] --> ownership/src/main.rs:74:4 [INFO] [stdout] | [INFO] [stdout] 74 | fn mutate_refrencing_without_taking_ownership(x: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `restriction_one` is never used [INFO] [stdout] --> ownership/src/main.rs:81:4 [INFO] [stdout] | [INFO] [stdout] 81 | fn restriction_one() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `restriction_two` is never used [INFO] [stdout] --> ownership/src/main.rs:94:4 [INFO] [stdout] | [INFO] [stdout] 94 | fn restriction_two() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> structs/src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let name = user1.username; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user3` [INFO] [stdout] --> structs/src/main.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let user3 = User { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `width` [INFO] [stdout] --> structs/src/main.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 96 | let width: u32 = 30; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_width` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `height` [INFO] [stdout] --> structs/src/main.rs:97:9 [INFO] [stdout] | [INFO] [stdout] 97 | let height: u32 = 50; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rect3` [INFO] [stdout] --> structs/src/main.rs:149:9 [INFO] [stdout] | [INFO] [stdout] 149 | let rect3 = Rectangle::square(32); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_rect3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `six` [INFO] [stdout] --> enums_and_pattern_matching/src/main.rs:142:9 [INFO] [stdout] | [INFO] [stdout] 142 | let six = plus_one(five); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_six` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `none` [INFO] [stdout] --> enums_and_pattern_matching/src/main.rs:143:9 [INFO] [stdout] | [INFO] [stdout] 143 | let none = plus_one(None); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_none` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Color` is never constructed [INFO] [stdout] --> structs/src/main.rs:38:12 [INFO] [stdout] | [INFO] [stdout] 38 | struct Color(i32, i32, i32); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Point` is never constructed [INFO] [stdout] --> structs/src/main.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 39 | struct Point(i32, i32, i32); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s [INFO] running `Command { std: "docker" "inspect" "f82d396138b7d8b8240f4484e407385a180257f5d92e80c42a044333c7bd2157", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f82d396138b7d8b8240f4484e407385a180257f5d92e80c42a044333c7bd2157", kill_on_drop: false }` [INFO] [stdout] f82d396138b7d8b8240f4484e407385a180257f5d92e80c42a044333c7bd2157 [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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c5ad169d8a89dd438558bd345d219a92a42110c866a3677f820750e99a144e2f [INFO] running `Command { std: "docker" "start" "-a" "c5ad169d8a89dd438558bd345d219a92a42110c866a3677f820750e99a144e2f", 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 data_types v0.1.0 (/opt/rustwide/workdir/data_types_and_control_flow) [INFO] [stderr] Compiling enums_and_pattern_matching v0.1.0 (/opt/rustwide/workdir/enums_and_pattern_matching) [INFO] [stderr] Compiling ownership v0.1.0 (/opt/rustwide/workdir/ownership) [INFO] [stderr] Compiling structs v0.1.0 (/opt/rustwide/workdir/structs) [INFO] [stdout] warning: unused variable: `six` [INFO] [stdout] --> enums_and_pattern_matching/src/main.rs:142:9 [INFO] [stdout] | [INFO] [stdout] 142 | let six = plus_one(five); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_six` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `none` [INFO] [stdout] --> enums_and_pattern_matching/src/main.rs:143:9 [INFO] [stdout] | [INFO] [stdout] 143 | let none = plus_one(None); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_none` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> ownership/src/main.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let s = String::from("hello"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> ownership/src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let y = x; // This will copy the value from x and store it in y. Rust has a copy trait stored on the stack. [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> ownership/src/main.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let c = b.clone(); // This will copy instead of moving the declaration. Cloning is expensive. [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> ownership/src/main.rs:95:9 [INFO] [stdout] | [INFO] [stdout] 95 | let mut a = String::from("Hello"); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `copy` is never used [INFO] [stdout] --> ownership/src/main.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | fn copy() { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `initial_ownership` is never used [INFO] [stdout] --> ownership/src/main.rs:43:4 [INFO] [stdout] | [INFO] [stdout] 43 | fn initial_ownership() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_ownership` is never used [INFO] [stdout] --> ownership/src/main.rs:52:4 [INFO] [stdout] | [INFO] [stdout] 52 | fn take_ownership(x: String) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `give_ownership` is never used [INFO] [stdout] --> ownership/src/main.rs:56:4 [INFO] [stdout] | [INFO] [stdout] 56 | fn give_ownership() -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_and_give_back_ownership` is never used [INFO] [stdout] --> ownership/src/main.rs:60:4 [INFO] [stdout] | [INFO] [stdout] 60 | fn take_and_give_back_ownership(x: String) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `referencing_and_not_moving` is never used [INFO] [stdout] --> ownership/src/main.rs:69:4 [INFO] [stdout] | [INFO] [stdout] 69 | fn referencing_and_not_moving(x: &String) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mutate_refrencing_without_taking_ownership` is never used [INFO] [stdout] --> ownership/src/main.rs:74:4 [INFO] [stdout] | [INFO] [stdout] 74 | fn mutate_refrencing_without_taking_ownership(x: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `restriction_one` is never used [INFO] [stdout] --> ownership/src/main.rs:81:4 [INFO] [stdout] | [INFO] [stdout] 81 | fn restriction_one() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `restriction_two` is never used [INFO] [stdout] --> ownership/src/main.rs:94:4 [INFO] [stdout] | [INFO] [stdout] 94 | fn restriction_two() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> structs/src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let name = user1.username; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user3` [INFO] [stdout] --> structs/src/main.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let user3 = User { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `width` [INFO] [stdout] --> structs/src/main.rs:96:9 [INFO] [stdout] | [INFO] [stdout] 96 | let width: u32 = 30; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_width` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `height` [INFO] [stdout] --> structs/src/main.rs:97:9 [INFO] [stdout] | [INFO] [stdout] 97 | let height: u32 = 50; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rect3` [INFO] [stdout] --> structs/src/main.rs:149:9 [INFO] [stdout] | [INFO] [stdout] 149 | let rect3 = Rectangle::square(32); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_rect3` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s [INFO] running `Command { std: "docker" "inspect" "c5ad169d8a89dd438558bd345d219a92a42110c866a3677f820750e99a144e2f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5ad169d8a89dd438558bd345d219a92a42110c866a3677f820750e99a144e2f", kill_on_drop: false }` [INFO] [stdout] c5ad169d8a89dd438558bd345d219a92a42110c866a3677f820750e99a144e2f [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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 835a71078f4041ed71112a7337f92632d9d873a991cee0675fdeed5100643699 [INFO] running `Command { std: "docker" "start" "-a" "835a71078f4041ed71112a7337f92632d9d873a991cee0675fdeed5100643699", 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] warning: unused variable: `s` [INFO] [stderr] --> ownership/src/main.rs:15:13 [INFO] [stderr] | [INFO] [stderr] 15 | let s = String::from("hello"); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> ownership/src/main.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | let y = x; // This will copy the value from x and store it in y. Rust has a copy trait stored on the stack. [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> ownership/src/main.rs:38:9 [INFO] [stderr] | [INFO] [stderr] 38 | let c = b.clone(); // This will copy instead of moving the declaration. Cloning is expensive. [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> ownership/src/main.rs:95:9 [INFO] [stderr] | [INFO] [stderr] 95 | let mut a = String::from("Hello"); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `copy` is never used [INFO] [stderr] --> ownership/src/main.rs:21:4 [INFO] [stderr] | [INFO] [stderr] 21 | fn copy() { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `initial_ownership` is never used [INFO] [stderr] --> ownership/src/main.rs:43:4 [INFO] [stderr] | [INFO] [stderr] 43 | fn initial_ownership() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `take_ownership` is never used [INFO] [stderr] --> ownership/src/main.rs:52:4 [INFO] [stderr] | [INFO] [stderr] 52 | fn take_ownership(x: String) { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `give_ownership` is never used [INFO] [stderr] --> ownership/src/main.rs:56:4 [INFO] [stderr] | [INFO] [stderr] 56 | fn give_ownership() -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `take_and_give_back_ownership` is never used [INFO] [stderr] --> ownership/src/main.rs:60:4 [INFO] [stderr] | [INFO] [stderr] 60 | fn take_and_give_back_ownership(x: String) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `referencing_and_not_moving` is never used [INFO] [stderr] --> ownership/src/main.rs:69:4 [INFO] [stderr] | [INFO] [stderr] 69 | fn referencing_and_not_moving(x: &String) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `mutate_refrencing_without_taking_ownership` is never used [INFO] [stderr] --> ownership/src/main.rs:74:4 [INFO] [stderr] | [INFO] [stderr] 74 | fn mutate_refrencing_without_taking_ownership(x: &mut String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `restriction_one` is never used [INFO] [stderr] --> ownership/src/main.rs:81:4 [INFO] [stderr] | [INFO] [stderr] 81 | fn restriction_one() { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `restriction_two` is never used [INFO] [stderr] --> ownership/src/main.rs:94:4 [INFO] [stderr] | [INFO] [stderr] 94 | fn restriction_two() { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `ownership` (bin "ownership" test) generated 13 warnings (run `cargo fix --bin "ownership" --tests` to apply 1 suggestion) [INFO] [stderr] warning: unused variable: `six` [INFO] [stderr] --> enums_and_pattern_matching/src/main.rs:142:9 [INFO] [stderr] | [INFO] [stderr] 142 | let six = plus_one(five); [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_six` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `none` [INFO] [stderr] --> enums_and_pattern_matching/src/main.rs:143:9 [INFO] [stderr] | [INFO] [stderr] 143 | let none = plus_one(None); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_none` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> structs/src/main.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | let name = user1.username; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `user3` [INFO] [stderr] --> structs/src/main.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | let user3 = User { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_user3` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `width` [INFO] [stderr] --> structs/src/main.rs:96:9 [INFO] [stderr] | [INFO] [stderr] 96 | let width: u32 = 30; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_width` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `height` [INFO] [stderr] --> structs/src/main.rs:97:9 [INFO] [stderr] | [INFO] [stderr] 97 | let height: u32 = 50; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rect3` [INFO] [stderr] --> structs/src/main.rs:149:9 [INFO] [stderr] | [INFO] [stderr] 149 | let rect3 = Rectangle::square(32); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_rect3` [INFO] [stderr] [INFO] [stderr] warning: `enums_and_pattern_matching` (bin "enums_and_pattern_matching" test) generated 2 warnings [INFO] [stderr] warning: `structs` (bin "structs" test) generated 5 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/data_types-101a5bb7ce6662bf) [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/enums_and_pattern_matching-cee55d98be945225) [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-27b5179a85f0be7c) [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/structs-05fcbb4413c6e8e3) [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" "835a71078f4041ed71112a7337f92632d9d873a991cee0675fdeed5100643699", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "835a71078f4041ed71112a7337f92632d9d873a991cee0675fdeed5100643699", kill_on_drop: false }` [INFO] [stdout] 835a71078f4041ed71112a7337f92632d9d873a991cee0675fdeed5100643699