[INFO] cloning repository https://github.com/Jacob-32587/rust_essential
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jacob-32587/rust_essential" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJacob-32587%2Frust_essential", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJacob-32587%2Frust_essential'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad3bdc46b2926b4bdaf37f250ca0004aa2abadde
[INFO] building Jacob-32587/rust_essential 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%2FJacob-32587%2Frust_essential" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jacob-32587/rust_essential 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/Jacob-32587/rust_essential
[INFO] finished tweaking git repo https://github.com/Jacob-32587/rust_essential
[INFO] tweaked toml for git repo https://github.com/Jacob-32587/rust_essential written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Jacob-32587/rust_essential 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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b6922722ee6cab5c9b509f64f7595f1cf4e172f4b8c628e83f844bf67ff8a37d
[INFO] running `Command { std: "docker" "start" "-a" "b6922722ee6cab5c9b509f64f7595f1cf4e172f4b8c628e83f844bf67ff8a37d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6922722ee6cab5c9b509f64f7595f1cf4e172f4b8c628e83f844bf67ff8a37d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6922722ee6cab5c9b509f64f7595f1cf4e172f4b8c628e83f844bf67ff8a37d", kill_on_drop: false }`
[INFO] [stdout] b6922722ee6cab5c9b509f64f7595f1cf4e172f4b8c628e83f844bf67ff8a37d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ca798bd08b6db71fbaa925b57952bdce9981efe75c5d0697a499f4a6cb1ac633
[INFO] running `Command { std: "docker" "start" "-a" "ca798bd08b6db71fbaa925b57952bdce9981efe75c5d0697a499f4a6cb1ac633", 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_essential v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> src/find_the_average.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let v: u32 = f as u32;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_average` is never used
[INFO] [stdout]  --> src/find_the_average.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_average() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/cel_to_fahr.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_cel_to_fahr` is never used
[INFO] [stdout]  --> src/cel_to_fahr.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn convert_cel_to_fahr(cel_value: f64) -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/max_min_mean.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/trim_spaces.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trim_spaces` is never used
[INFO] [stdout]   --> src/trim_spaces.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn trim_spaces(val: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/high_or_lower.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/check_the_roster.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> src/represent_shapes.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Rectangle {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_area`, and `scale` are never used
[INFO] [stdout]   --> src/represent_shapes.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Rectangle {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 7  |     pub fn new(width: f64, height: f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn get_area(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn scale(&mut self, scale: f64) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/represent_shapes.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/sum_boxes.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_boxes` is never used
[INFO] [stdout]   --> src/sum_boxes.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn sum_boxes<T: Add<Output = T>>(l: Box<T>, r: Box<T>) -> Box<T> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Satellite` is never constructed
[INFO] [stdout]  --> src/impl_display_trait.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Satellite {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/impl_display_trait.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Unknown`, `Anonymous`, and `Known` are never constructed
[INFO] [stdout]  --> src/represent_location.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Location {
[INFO] [stdout]   |          -------- variants in this enum
[INFO] [stdout] 2 |     Unknown,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 3 |     Anonymous,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 4 |     Known(f64, f64),
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/represent_location.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "ca798bd08b6db71fbaa925b57952bdce9981efe75c5d0697a499f4a6cb1ac633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca798bd08b6db71fbaa925b57952bdce9981efe75c5d0697a499f4a6cb1ac633", kill_on_drop: false }`
[INFO] [stdout] ca798bd08b6db71fbaa925b57952bdce9981efe75c5d0697a499f4a6cb1ac633
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 57812fa60bccc0fd041e273b2dc4b298b057cef2dbb07f7e80de973eb93f6338
[INFO] running `Command { std: "docker" "start" "-a" "57812fa60bccc0fd041e273b2dc4b298b057cef2dbb07f7e80de973eb93f6338", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_essential v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> src/find_the_average.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let v: u32 = f as u32;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_average` is never used
[INFO] [stdout]  --> src/find_the_average.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_average() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/cel_to_fahr.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_cel_to_fahr` is never used
[INFO] [stdout]  --> src/cel_to_fahr.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn convert_cel_to_fahr(cel_value: f64) -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/max_min_mean.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/trim_spaces.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trim_spaces` is never used
[INFO] [stdout]   --> src/trim_spaces.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn trim_spaces(val: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/high_or_lower.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/check_the_roster.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> src/represent_shapes.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Rectangle {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_area`, and `scale` are never used
[INFO] [stdout]   --> src/represent_shapes.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Rectangle {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 7  |     pub fn new(width: f64, height: f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn get_area(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn scale(&mut self, scale: f64) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/represent_shapes.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/sum_boxes.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn main() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_boxes` is never used
[INFO] [stdout]   --> src/sum_boxes.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn sum_boxes<T: Add<Output = T>>(l: Box<T>, r: Box<T>) -> Box<T> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Satellite` is never constructed
[INFO] [stdout]  --> src/impl_display_trait.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Satellite {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/impl_display_trait.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Unknown`, `Anonymous`, and `Known` are never constructed
[INFO] [stdout]  --> src/represent_location.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Location {
[INFO] [stdout]   |          -------- variants in this enum
[INFO] [stdout] 2 |     Unknown,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 3 |     Anonymous,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 4 |     Known(f64, f64),
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/represent_location.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "57812fa60bccc0fd041e273b2dc4b298b057cef2dbb07f7e80de973eb93f6338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57812fa60bccc0fd041e273b2dc4b298b057cef2dbb07f7e80de973eb93f6338", kill_on_drop: false }`
[INFO] [stdout] 57812fa60bccc0fd041e273b2dc4b298b057cef2dbb07f7e80de973eb93f6338