[INFO] cloning repository https://github.com/kashw2/The-Rust-Programming-Language
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kashw2/The-Rust-Programming-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6dd56078913e1052c1e80211bd7a494d92773cc
[INFO] testing kashw2/The-Rust-Programming-Language against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkashw2%2FThe-Rust-Programming-Language" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kashw2/The-Rust-Programming-Language
[INFO] finished tweaking git repo https://github.com/kashw2/The-Rust-Programming-Language
[INFO] tweaked toml for git repo https://github.com/kashw2/The-Rust-Programming-Language written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kashw2/The-Rust-Programming-Language on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kashw2/The-Rust-Programming-Language 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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "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]   |
[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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0bac21503a4c806e8e2023b72176a2f967a613cdbc02428146d11236ccca606
[INFO] running `Command { std: "docker" "start" "-a" "d0bac21503a4c806e8e2023b72176a2f967a613cdbc02428146d11236ccca606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0bac21503a4c806e8e2023b72176a2f967a613cdbc02428146d11236ccca606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0bac21503a4c806e8e2023b72176a2f967a613cdbc02428146d11236ccca606", kill_on_drop: false }`
[INFO] [stdout] d0bac21503a4c806e8e2023b72176a2f967a613cdbc02428146d11236ccca606
[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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 618807bbf6dd98aa1b06cbba837d2f232be37d301d313ae66cbaf8fc74dae9b6
[INFO] running `Command { std: "docker" "start" "-a" "618807bbf6dd98aa1b06cbba837d2f232be37d301d313ae66cbaf8fc74dae9b6", 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]   |
[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 hello_cargo v0.1.0 (/opt/rustwide/workdir/hello_cargo)
[INFO] [stderr]    Compiling structure_related_data v0.1.0 (/opt/rustwide/workdir/structure_related_data)
[INFO] [stderr]    Compiling generics_traits_lifetimes v0.1.0 (/opt/rustwide/workdir/generics_traits_lifetimes)
[INFO] [stderr]    Compiling understanding_ownership v0.1.0 (/opt/rustwide/workdir/understanding_ownership)
[INFO] [stderr]    Compiling iterators_and_closures v0.1.0 (/opt/rustwide/workdir/iterators_and_closures)
[INFO] [stderr]    Compiling growing_projects v0.1.0 (/opt/rustwide/workdir/growing_projects)
[INFO] [stderr]    Compiling error_handling v0.1.0 (/opt/rustwide/workdir/error_handling)
[INFO] [stderr]    Compiling common_collections v0.1.0 (/opt/rustwide/workdir/common_collections)
[INFO] [stderr]    Compiling enums_and_pattern_matching v0.1.0 (/opt/rustwide/workdir/enums_and_pattern_matching)
[INFO] [stderr]    Compiling running_automated_tests v0.1.0 (/opt/rustwide/workdir/running_automated_tests)
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/rustwide/workdir/hello_world)
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stderr]    Compiling common_programming_concepts v0.1.0 (/opt/rustwide/workdir/common_programming_concepts)
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stdout] warning: unused variable: `propagated_file`
[INFO] [stdout]   --> error_handling/src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let propagated_file = File::open("hi.txt")?;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propagated_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LxWShape`, `Rectangle`, and `Shape`
[INFO] [stdout]  --> running_automated_tests/src/lib.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use shape::{LxWShape, Rectangle, Shape};
[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: `Pointer`
[INFO] [stdout]  --> generics_traits_lifetimes/src/main.rs:3:36
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Display, Formatter, Pointer};
[INFO] [stdout]   |                                    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> iterators_and_closures/src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod lib;
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Debug`
[INFO] [stdout]  --> iterators_and_closures/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Debug;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> common_collections/src/main.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         Female {
[INFO] [stdout]    |         ------ fields in this variant
[INFO] [stdout] 27 |             name: String,
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 28 |             age: i32,
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_largest_number` is never used
[INFO] [stdout]   --> generics_traits_lifetimes/src/main.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn find_largest_number(vec: &Vec<i32>) -> Option<&i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> common_collections/src/main.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         Male {
[INFO] [stdout]    |         ---- fields in this variant
[INFO] [stdout] 31 |             name: String,
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 32 |             age: i32,
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_author` is never used
[INFO] [stdout]   --> generics_traits_lifetimes/src/main.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn find_author(item: &impl Summary) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `first_name` and `last_name` are never read
[INFO] [stdout]   --> common_collections/src/main.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     struct Employee {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 67 |         first_name: String,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 68 |         last_name: String,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Employee` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]  --> structure_related_data/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     age: i8,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]   --> structure_related_data/src/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Rectangle {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 15 |     fn area(&self) -> i32 { self.length * self.width }
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> structure_related_data/src/main.rs:40:18
[INFO] [stdout]    |
[INFO] [stdout] 40 |     struct Color(i16, i16, i16);
[INFO] [stdout]    |            ----- ^^^  ^^^  ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout]    = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> minigrep/src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn parse_config(args: &Vec<String>) -> Config {
[INFO] [stdout]    |                       ^^^^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn parse_config(args: &Vec<String>) -> Config<'_> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[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 guessing_game v0.1.0 (/opt/rustwide/workdir/guessing_game)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.84s
[INFO] running `Command { std: "docker" "inspect" "618807bbf6dd98aa1b06cbba837d2f232be37d301d313ae66cbaf8fc74dae9b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "618807bbf6dd98aa1b06cbba837d2f232be37d301d313ae66cbaf8fc74dae9b6", kill_on_drop: false }`
[INFO] [stdout] 618807bbf6dd98aa1b06cbba837d2f232be37d301d313ae66cbaf8fc74dae9b6
[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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6db6c0babff5111d880d1e823ab32c6eaf393030698dfc6873354778d0790ee0
[INFO] running `Command { std: "docker" "start" "-a" "6db6c0babff5111d880d1e823ab32c6eaf393030698dfc6873354778d0790ee0", 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]   |
[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 minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stderr]    Compiling structure_related_data v0.1.0 (/opt/rustwide/workdir/structure_related_data)
[INFO] [stderr]    Compiling iterators_and_closures v0.1.0 (/opt/rustwide/workdir/iterators_and_closures)
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir/hello_cargo)
[INFO] [stdout] warning: unused imports: `LxWShape`, `Rectangle`, and `Shape`
[INFO] [stdout]  --> running_automated_tests/src/lib.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use shape::{LxWShape, Rectangle, Shape};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling common_programming_concepts v0.1.0 (/opt/rustwide/workdir/common_programming_concepts)
[INFO] [stderr]    Compiling generics_traits_lifetimes v0.1.0 (/opt/rustwide/workdir/generics_traits_lifetimes)
[INFO] [stderr]    Compiling error_handling v0.1.0 (/opt/rustwide/workdir/error_handling)
[INFO] [stderr]    Compiling enums_and_pattern_matching v0.1.0 (/opt/rustwide/workdir/enums_and_pattern_matching)
[INFO] [stderr]    Compiling common_collections v0.1.0 (/opt/rustwide/workdir/common_collections)
[INFO] [stderr]    Compiling growing_projects v0.1.0 (/opt/rustwide/workdir/growing_projects)
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/rustwide/workdir/hello_world)
[INFO] [stderr]    Compiling running_automated_tests v0.1.0 (/opt/rustwide/workdir/running_automated_tests)
[INFO] [stderr]    Compiling understanding_ownership v0.1.0 (/opt/rustwide/workdir/understanding_ownership)
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/guessing_game)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> minigrep/src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn parse_config(args: &Vec<String>) -> Config {
[INFO] [stdout]    |                       ^^^^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn parse_config(args: &Vec<String>) -> Config<'_> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> iterators_and_closures/src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod lib;
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Debug`
[INFO] [stdout]  --> iterators_and_closures/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Debug;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]  --> structure_related_data/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     age: i8,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]   --> structure_related_data/src/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Rectangle {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 15 |     fn area(&self) -> i32 { self.length * self.width }
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pointer`
[INFO] [stdout]  --> generics_traits_lifetimes/src/main.rs:3:36
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Display, Formatter, Pointer};
[INFO] [stdout]   |                                    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_largest_number` is never used
[INFO] [stdout]   --> generics_traits_lifetimes/src/main.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn find_largest_number(vec: &Vec<i32>) -> Option<&i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_author` is never used
[INFO] [stdout]   --> generics_traits_lifetimes/src/main.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn find_author(item: &impl Summary) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `propagated_file`
[INFO] [stdout]   --> error_handling/src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let propagated_file = File::open("hi.txt")?;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propagated_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "6db6c0babff5111d880d1e823ab32c6eaf393030698dfc6873354778d0790ee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6db6c0babff5111d880d1e823ab32c6eaf393030698dfc6873354778d0790ee0", kill_on_drop: false }`
[INFO] [stdout] 6db6c0babff5111d880d1e823ab32c6eaf393030698dfc6873354778d0790ee0
[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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 73c4b2d6311ab4e4a2a6f25a197c148a59c485e978d92b2bfd261f758feef182
[INFO] running `Command { std: "docker" "start" "-a" "73c4b2d6311ab4e4a2a6f25a197c148a59c485e978d92b2bfd261f758feef182", 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]   |
[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 imports: `LxWShape`, `Rectangle`, and `Shape`
[INFO] [stderr]  --> running_automated_tests/src/lib.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use shape::{LxWShape, Rectangle, Shape};
[INFO] [stderr]   |             ^^^^^^^^  ^^^^^^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `running_automated_tests` (lib) generated 1 warning (run `cargo fix --lib -p running_automated_tests` to apply 1 suggestion)
[INFO] [stderr] warning: unused variable: `propagated_file`
[INFO] [stderr]   --> error_handling/src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let propagated_file = File::open("hi.txt")?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_propagated_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `error_handling` (bin "error_handling" test) generated 1 warning (run `cargo fix --bin "error_handling" -p error_handling --tests` to apply 1 suggestion)
[INFO] [stderr] warning: fields `name` and `age` are never read
[INFO] [stderr]  --> structure_related_data/src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct User {
[INFO] [stderr]   |        ---- fields in this struct
[INFO] [stderr] 3 |     name: String,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 4 |     age: i8,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `area` is never used
[INFO] [stderr]   --> structure_related_data/src/main.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl Rectangle {
[INFO] [stderr]    | -------------- method in this implementation
[INFO] [stderr] 15 |     fn area(&self) -> i32 { self.length * self.width }
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `structure_related_data` (bin "structure_related_data" test) generated 2 warnings
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> minigrep/src/main.rs:42:23
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn parse_config(args: &Vec<String>) -> Config {
[INFO] [stderr]    |                       ^^^^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn parse_config(args: &Vec<String>) -> Config<'_> {
[INFO] [stderr]    |                                              ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `minigrep` (bin "minigrep" test) generated 1 warning (run `cargo fix --bin "minigrep" -p minigrep --tests` to apply 1 suggestion)
[INFO] [stderr] warning: unused import: `Pointer`
[INFO] [stderr]  --> generics_traits_lifetimes/src/main.rs:3:36
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fmt::{Display, Formatter, Pointer};
[INFO] [stderr]   |                                    ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_largest_number` is never used
[INFO] [stderr]   --> generics_traits_lifetimes/src/main.rs:32:4
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn find_largest_number(vec: &Vec<i32>) -> Option<&i32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_author` is never used
[INFO] [stderr]   --> generics_traits_lifetimes/src/main.rs:86:4
[INFO] [stderr]    |
[INFO] [stderr] 86 | fn find_author(item: &impl Summary) -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `generics_traits_lifetimes` (bin "generics_traits_lifetimes" test) generated 3 warnings (run `cargo fix --bin "generics_traits_lifetimes" -p generics_traits_lifetimes --tests` to apply 1 suggestion)
[INFO] [stderr] warning: found module declaration for lib.rs
[INFO] [stderr]  --> iterators_and_closures/src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub mod lib;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: lib.rs is the root of this crate's library target
[INFO] [stderr]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stderr]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Debug`
[INFO] [stderr]  --> iterators_and_closures/src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::Debug;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `iterators_and_closures` (bin "iterators_and_closures" test) generated 2 warnings (run `cargo fix --bin "iterators_and_closures" -p iterators_and_closures --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/common_collections-4677109d6885fb58)
[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/common_programming_concepts-e122e34b0448c240)
[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-3d5b5575e0a71d37)
[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/error_handling-e5d1d9fb890d6ea7)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/generics_traits_lifetimes-8643555506effc99)
[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] [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/growing_projects-1ab38433f6535a17)
[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/guessing_game-008450e91427a09d)
[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/hello_cargo-4bdbff2cb0bcce64)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hello_world-1d333aaa62eef117)
[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] [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/iterators_and_closures-f888dd193f9f8860)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test lib::tests::has_greater_stock_is_correct ... ok
[INFO] [stdout] test lib::tests::giveaway_should_not_default ... ok
[INFO] [stdout] test lib::tests::giveaway_should_default ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 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/minigrep-f5f48802d02c5ed6)
[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/lib.rs (/opt/rustwide/target/debug/deps/running_automated_tests-b6e6409e511a8515)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::can_fit_lxw_shape ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/structure_related_data-b144701d6399d727)
[INFO] [stdout] test tests::rectangle_area_is_correct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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/understanding_ownership-d8a19b4926676b41)
[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]    Doc-tests running_automated_tests
[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" "73c4b2d6311ab4e4a2a6f25a197c148a59c485e978d92b2bfd261f758feef182", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73c4b2d6311ab4e4a2a6f25a197c148a59c485e978d92b2bfd261f758feef182", kill_on_drop: false }`
[INFO] [stdout] 73c4b2d6311ab4e4a2a6f25a197c148a59c485e978d92b2bfd261f758feef182
