[INFO] cloning repository https://github.com/taylors42/rust-notes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taylors42/rust-notes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaylors42%2Frust-notes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaylors42%2Frust-notes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3a4622b0e823eb9091d14e6e98e6500692cc8ca
[INFO] building taylors42/rust-notes against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaylors42%2Frust-notes" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/taylors42/rust-notes on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/taylors42/rust-notes
[INFO] finished tweaking git repo https://github.com/taylors42/rust-notes
[INFO] tweaked toml for git repo https://github.com/taylors42/rust-notes written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/taylors42/rust-notes 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c33c5754f013665c5cf911243adf16b0753f5507f29a5b8c2e95049535e175b
[INFO] running `Command { std: "docker" "start" "-a" "4c33c5754f013665c5cf911243adf16b0753f5507f29a5b8c2e95049535e175b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c33c5754f013665c5cf911243adf16b0753f5507f29a5b8c2e95049535e175b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c33c5754f013665c5cf911243adf16b0753f5507f29a5b8c2e95049535e175b", kill_on_drop: false }`
[INFO] [stdout] 4c33c5754f013665c5cf911243adf16b0753f5507f29a5b8c2e95049535e175b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 835fef710710cc5b76b32fe3bdcf4313d5ca7be7dca25ad0fb625eb57e519ec7
[INFO] running `Command { std: "docker" "start" "-a" "835fef710710cc5b76b32fe3bdcf4313d5ca7be7dca25ad0fb625eb57e519ec7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rust-notes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let mut r: i32 = value % 10;
[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 `greater` is never used
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn greater(num1: i32, num2:i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double` is never used
[INFO] [stdout]   --> src/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn double(num: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mdc` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn mdc(){
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `media_aluno` is never used
[INFO] [stdout]   --> src/main.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn media_aluno(){
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_factorial` is never used
[INFO] [stdout]    --> src/main.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn calc_factorial(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello_world` is never used
[INFO] [stdout]    --> src/main.rs:144:4
[INFO] [stdout]     |
[INFO] [stdout] 144 | fn hello_world(){
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `say_user_input` is never used
[INFO] [stdout]    --> src/main.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn say_user_input(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flux_control` is never used
[INFO] [stdout]    --> src/main.rs:154:4
[INFO] [stdout]     |
[INFO] [stdout] 154 | fn flux_control(num1: i32, num2: i32){
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_to_int` is never used
[INFO] [stdout]    --> src/main.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn convert_to_int(data_input: &String) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flux_control_by_user` is never used
[INFO] [stdout]    --> src/main.rs:171:4
[INFO] [stdout]     |
[INFO] [stdout] 171 | fn flux_control_by_user(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_all_digits` is never used
[INFO] [stdout]    --> src/main.rs:190:4
[INFO] [stdout]     |
[INFO] [stdout] 190 | fn sum_all_digits(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "835fef710710cc5b76b32fe3bdcf4313d5ca7be7dca25ad0fb625eb57e519ec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "835fef710710cc5b76b32fe3bdcf4313d5ca7be7dca25ad0fb625eb57e519ec7", kill_on_drop: false }`
[INFO] [stdout] 835fef710710cc5b76b32fe3bdcf4313d5ca7be7dca25ad0fb625eb57e519ec7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b102e83c7efa74702be0ae0d87761745e956d9119dbf97fea645cb99b7c698e
[INFO] running `Command { std: "docker" "start" "-a" "8b102e83c7efa74702be0ae0d87761745e956d9119dbf97fea645cb99b7c698e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-notes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let mut r: i32 = value % 10;
[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 `greater` is never used
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn greater(num1: i32, num2:i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double` is never used
[INFO] [stdout]   --> src/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn double(num: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mdc` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn mdc(){
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `media_aluno` is never used
[INFO] [stdout]   --> src/main.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn media_aluno(){
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calc_factorial` is never used
[INFO] [stdout]    --> src/main.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn calc_factorial(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello_world` is never used
[INFO] [stdout]    --> src/main.rs:144:4
[INFO] [stdout]     |
[INFO] [stdout] 144 | fn hello_world(){
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `say_user_input` is never used
[INFO] [stdout]    --> src/main.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn say_user_input(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flux_control` is never used
[INFO] [stdout]    --> src/main.rs:154:4
[INFO] [stdout]     |
[INFO] [stdout] 154 | fn flux_control(num1: i32, num2: i32){
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_to_int` is never used
[INFO] [stdout]    --> src/main.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn convert_to_int(data_input: &String) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flux_control_by_user` is never used
[INFO] [stdout]    --> src/main.rs:171:4
[INFO] [stdout]     |
[INFO] [stdout] 171 | fn flux_control_by_user(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_all_digits` is never used
[INFO] [stdout]    --> src/main.rs:190:4
[INFO] [stdout]     |
[INFO] [stdout] 190 | fn sum_all_digits(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "8b102e83c7efa74702be0ae0d87761745e956d9119dbf97fea645cb99b7c698e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b102e83c7efa74702be0ae0d87761745e956d9119dbf97fea645cb99b7c698e", kill_on_drop: false }`
[INFO] [stdout] 8b102e83c7efa74702be0ae0d87761745e956d9119dbf97fea645cb99b7c698e