[INFO] cloning repository https://github.com/FrogOnARock/RandomRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FrogOnARock/RandomRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrogOnARock%2FRandomRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrogOnARock%2FRandomRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4d0c067f2bbb4175be4743b60af9015294dbc33
[INFO] fixing FrogOnARock/RandomRust against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrogOnARock%2FRandomRust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/FrogOnARock/RandomRust
[INFO] finished tweaking git repo https://github.com/FrogOnARock/RandomRust
[INFO] tweaked toml for git repo https://github.com/FrogOnARock/RandomRust written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FrogOnARock/RandomRust on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FrogOnARock/RandomRust 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "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/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5b64fb11c6a758d37cdd22f0c1ee9213f8610073d06d858e97c0992469d6b610
[INFO] running `Command { std: "docker" "start" "5b64fb11c6a758d37cdd22f0c1ee9213f8610073d06d858e97c0992469d6b610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5b64fb11c6a758d37cdd22f0c1ee9213f8610073d06d858e97c0992469d6b610" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b64fb11c6a758d37cdd22f0c1ee9213f8610073d06d858e97c0992469d6b610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5b64fb11c6a758d37cdd22f0c1ee9213f8610073d06d858e97c0992469d6b610" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling zerocopy v0.8.31
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking LearningRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::char::MAX`
[INFO] [stdout]  --> src/bin/correlation.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::char::MAX;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/bin/correlation.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `else`, or an operator, found `{`
[INFO] [stdout]   --> src/bin/todo_list.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let Err(e) = run(config) {
[INFO] [stdout]    |                              ^ expected one of `.`, `;`, `?`, `else`, or an operator
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to use `if let`
[INFO] [stdout]    |
[INFO] [stdout] 37 |     if let Err(e) = run(config) {
[INFO] [stdout]    |     ++
[INFO] [stdout] help: alternatively, you might have meant to use `let...else`
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let Err(e) = run(config) else {
[INFO] [stdout]    |                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vector` is never constructed
[INFO] [stdout]  --> src/bin/correlation.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Vector {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Variance` is never constructed
[INFO] [stdout]  --> src/bin/correlation.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Variance {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Covariance` is never constructed
[INFO] [stdout]   --> src/bin/correlation.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Covariance {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Correlation` is never constructed
[INFO] [stdout]   --> src/bin/correlation.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Correlation {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mean` is never constructed
[INFO] [stdout]   --> src/bin/correlation.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Mean {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `REL_EPS` is never used
[INFO] [stdout]   --> src/bin/correlation.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 | const REL_EPS: f64 = f64::EPSILON;
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MIN_STDDEV` is never used
[INFO] [stdout]   --> src/bin/correlation.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | const MIN_STDDEV: f64 = 1e-12;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mean` is never used
[INFO] [stdout]   --> src/bin/correlation.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Vector {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 30 |     fn mean(&self) -> Mean {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `variance` is never used
[INFO] [stdout]   --> src/bin/correlation.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl Vector {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 38 |     fn variance(&self) -> Variance {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `covariance` is never used
[INFO] [stdout]   --> src/bin/correlation.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl Vector {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 58 |     fn covariance(&self, other: &Vector) -> Covariance {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `correlation` is never used
[INFO] [stdout]   --> src/bin/correlation.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 81 | impl Vector {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 82 |     fn correlation(&self, other: &Vector) -> Result<Correlation, &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/bin/correlation.rs:114:4
[INFO] [stdout]     |
[INFO] [stdout] 114 | fn main () {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::char::MAX`
[INFO] [stdout]  --> src/bin/correlation.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::char::MAX;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/bin/correlation.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `LearningRust` (bin "todo_list" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: expected type, found `,`
[INFO] [stdout]   --> src/bin/task_manager.rs:28:30
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn modify_name(name: &mut, new_name: &String) -> Result<String, &'static str> {
[INFO] [stdout]    |                              ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/bin/task_manager.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/bin/task_manager.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vector` is never constructed
[INFO] [stdout]  --> src/bin/correlation.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Vector {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Variance` is never constructed
[INFO] [stdout]  --> src/bin/correlation.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Variance {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Covariance` is never constructed
[INFO] [stdout]   --> src/bin/correlation.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Covariance {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Correlation` is never constructed
[INFO] [stdout]   --> src/bin/correlation.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Correlation {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mean` is never constructed
[INFO] [stdout]   --> src/bin/correlation.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Mean {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `REL_EPS` is never used
[INFO] [stdout]   --> src/bin/correlation.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 | const REL_EPS: f64 = f64::EPSILON;
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MIN_STDDEV` is never used
[INFO] [stdout]   --> src/bin/correlation.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | const MIN_STDDEV: f64 = 1e-12;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mean` is never used
[INFO] [stdout]   --> src/bin/correlation.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Vector {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 30 |     fn mean(&self) -> Mean {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `variance` is never used
[INFO] [stdout]   --> src/bin/correlation.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl Vector {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 38 |     fn variance(&self) -> Variance {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `covariance` is never used
[INFO] [stdout]   --> src/bin/correlation.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl Vector {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 58 |     fn covariance(&self, other: &Vector) -> Covariance {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `correlation` is never used
[INFO] [stdout]   --> src/bin/correlation.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 81 | impl Vector {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 82 |     fn correlation(&self, other: &Vector) -> Result<Correlation, &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/bin/correlation.rs:114:4
[INFO] [stdout]     |
[INFO] [stdout] 114 | fn main () {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/bin/task_manager.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |         if (name.is_empty() | priority.is_empty() | description.is_empty() | due.is_empty()) {
[INFO] [stdout]    |            ^                                                                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -         if (name.is_empty() | priority.is_empty() | description.is_empty() | due.is_empty()) {
[INFO] [stdout] 15 +         if name.is_empty() | priority.is_empty() | description.is_empty() | due.is_empty()  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `else`, or an operator, found `{`
[INFO] [stdout]   --> src/bin/todo_list.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let Err(e) = run(config) {
[INFO] [stdout]    |                              ^ expected one of `.`, `;`, `?`, `else`, or an operator
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to use `if let`
[INFO] [stdout]    |
[INFO] [stdout] 37 |     if let Err(e) = run(config) {
[INFO] [stdout]    |     ++
[INFO] [stdout] help: alternatively, you might have meant to use `let...else`
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let Err(e) = run(config) else {
[INFO] [stdout]    |                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::char::MAX`
[INFO] [stdout]  --> src/bin/correlation.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::char::MAX;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/bin/correlation.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `is_empty` found for reference `&u8` in the current scope
[INFO] [stdout]   --> src/bin/task_manager.rs:15:40
[INFO] [stdout]    |
[INFO] [stdout] 15 |         if (name.is_empty() | priority.is_empty() | description.is_empty() | due.is_empty()) {
[INFO] [stdout]    |                                        ^^^^^^^^ method not found in `&u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `LearningRust` (bin "todo_list") due to 1 previous error
[INFO] [stdout] warning: unused import: `std::char::MAX`
[INFO] [stdout]  --> src/bin/correlation.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::char::MAX;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/bin/correlation.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/bin/task_manager.rs:28:54
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn modify_name(name: &mut, new_name: &String) -> Result<String, &'static str> {
[INFO] [stdout]    |        -----------                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<String, &str>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<String, &'static str>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Return` is never constructed
[INFO] [stdout]  --> src/bin/returns_case.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Return; // Unit Type
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `LearningRust` (bin "task_manager" test) due to 3 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5b64fb11c6a758d37cdd22f0c1ee9213f8610073d06d858e97c0992469d6b610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b64fb11c6a758d37cdd22f0c1ee9213f8610073d06d858e97c0992469d6b610", kill_on_drop: false }`
[INFO] [stdout] 5b64fb11c6a758d37cdd22f0c1ee9213f8610073d06d858e97c0992469d6b610
