[INFO] fetching crate rust_sample_rtx 0.1.0...
[INFO] checking rust_sample_rtx-0.1.0 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate rust_sample_rtx 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rust_sample_rtx 0.1.0 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_sample_rtx 0.1.0
[INFO] finished tweaking crates.io crate rust_sample_rtx 0.1.0
[INFO] tweaked toml for crates.io crate rust_sample_rtx 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate rust_sample_rtx 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded paillier v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32e117da26bd64cef8665754a944354f6a14bbf35963e8797aaa5d3c4971d94b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "32e117da26bd64cef8665754a944354f6a14bbf35963e8797aaa5d3c4971d94b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32e117da26bd64cef8665754a944354f6a14bbf35963e8797aaa5d3c4971d94b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32e117da26bd64cef8665754a944354f6a14bbf35963e8797aaa5d3c4971d94b", kill_on_drop: false }`
[INFO] [stdout] 32e117da26bd64cef8665754a944354f6a14bbf35963e8797aaa5d3c4971d94b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff14e692b4947bf717c414dca00dec9cd66cd72642f9c9c522af1f7b3788e29c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ff14e692b4947bf717c414dca00dec9cd66cd72642f9c9c522af1f7b3788e29c", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.87
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking rust-gmp v0.5.0
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]    Compiling libssh2-sys v0.2.21
[INFO] [stderr]    Compiling libgit2-sys v0.12.18+1.1.0
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking git2 v0.13.17
[INFO] [stderr]     Checking paillier v0.2.0
[INFO] [stderr]     Checking rust_sample_rtx v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/generic_addition.rs (1 fix)
[INFO] [stderr]        Fixed src/main.rs (10 fixes)
[INFO] [stderr]        Fixed src/error_handling.rs (2 fixes)
[INFO] [stderr]        Fixed src/custom_iterator.rs (11 fixes)
[INFO] [stdout] warning: function is never used: `simulated_expensive_calculation`
[INFO] [stdout]  --> src/closures.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn simulated_expensive_calculation(intensity: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_workout`
[INFO] [stdout]   --> src/closures.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/closures.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/error_handling.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/structs.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_holding_capacity_for`
[INFO] [stdout]   --> src/structs.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn check_holding_capacity_for(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]   --> src/structs.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn square(w: u32, h: u32) -> Rectangle{
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/generic_addition.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn main(){
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/trait_with_impl.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `notify`
[INFO] [stdout]   --> src/trait_with_impl.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn notify(item: &impl Summary){
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/reading_file_and_printing.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/custom_iterator.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn main(){
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/custom_iterator.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new() -> Counter{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simulated_expensive_calculation`
[INFO] [stdout]  --> src/closures.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn simulated_expensive_calculation(intensity: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_workout`
[INFO] [stdout]   --> src/closures.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/closures.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/error_handling.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/structs.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_holding_capacity_for`
[INFO] [stdout]   --> src/structs.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn check_holding_capacity_for(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]   --> src/structs.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn square(w: u32, h: u32) -> Rectangle{
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/generic_addition.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn main(){
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/trait_with_impl.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `notify`
[INFO] [stdout]   --> src/trait_with_impl.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn notify(item: &impl Summary){
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/reading_file_and_printing.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/custom_iterator.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn main(){
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/custom_iterator.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new() -> Counter{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.14s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking rust_sample_rtx v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: function is never used: `simulated_expensive_calculation`
[INFO] [stdout]  --> src/closures.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn simulated_expensive_calculation(intensity: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_workout`
[INFO] [stdout]   --> src/closures.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/closures.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/error_handling.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/structs.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_holding_capacity_for`
[INFO] [stdout]   --> src/structs.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn check_holding_capacity_for(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]   --> src/structs.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn square(w: u32, h: u32) -> Rectangle{
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/generic_addition.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn main(){
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/trait_with_impl.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `notify`
[INFO] [stdout]   --> src/trait_with_impl.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn notify(item: &impl Summary){
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/reading_file_and_printing.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/custom_iterator.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn main(){
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/custom_iterator.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new() -> Counter{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simulated_expensive_calculation`
[INFO] [stdout]  --> src/closures.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn simulated_expensive_calculation(intensity: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_workout`
[INFO] [stdout]   --> src/closures.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/closures.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/error_handling.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/structs.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_holding_capacity_for`
[INFO] [stdout]   --> src/structs.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn check_holding_capacity_for(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]   --> src/structs.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn square(w: u32, h: u32) -> Rectangle{
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/generic_addition.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn main(){
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/trait_with_impl.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `notify`
[INFO] [stdout]   --> src/trait_with_impl.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn notify(item: &impl Summary){
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]  --> src/reading_file_and_printing.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/custom_iterator.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn main(){
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/custom_iterator.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new() -> Counter{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "ff14e692b4947bf717c414dca00dec9cd66cd72642f9c9c522af1f7b3788e29c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff14e692b4947bf717c414dca00dec9cd66cd72642f9c9c522af1f7b3788e29c", kill_on_drop: false }`
[INFO] [stdout] ff14e692b4947bf717c414dca00dec9cd66cd72642f9c9c522af1f7b3788e29c