[INFO] cloning repository https://github.com/infynyxx/hello_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/infynyxx/hello_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finfynyxx%2Fhello_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finfynyxx%2Fhello_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3263fa66c0626cb1b75efda7b8002e79aeb0d8c1
[INFO] testing infynyxx/hello_rust against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finfynyxx%2Fhello_rust" "/workspace/builds/worker-73/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-73/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/infynyxx/hello_rust on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/infynyxx/hello_rust
[INFO] finished tweaking git repo https://github.com/infynyxx/hello_rust
[INFO] tweaked toml for git repo https://github.com/infynyxx/hello_rust written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] crate git repo https://github.com/infynyxx/hello_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed6ddf327ba7dab4add1bbeffea7ea03b9d1cf1e5980a7e7c3c87334296a0688
[INFO] running `Command { std: "docker" "start" "-a" "ed6ddf327ba7dab4add1bbeffea7ea03b9d1cf1e5980a7e7c3c87334296a0688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed6ddf327ba7dab4add1bbeffea7ea03b9d1cf1e5980a7e7c3c87334296a0688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed6ddf327ba7dab4add1bbeffea7ea03b9d1cf1e5980a7e7c3c87334296a0688", kill_on_drop: false }`
[INFO] [stdout] ed6ddf327ba7dab4add1bbeffea7ea03b9d1cf1e5980a7e7c3c87334296a0688
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e27ddc2e9339e48399836294ccbc350cb124881346f7e8623a77bc9c3565ca4
[INFO] running `Command { std: "docker" "start" "-a" "3e27ddc2e9339e48399836294ccbc350cb124881346f7e8623a77bc9c3565ca4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir/playground)
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> playground/src/error_handling.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> playground/src/error_handling.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> playground/src/error_handling.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> playground/src/error_handling.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tempfile::tempdir`
[INFO] [stdout]  --> playground/src/error_handling.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tempfile::tempdir;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> playground/src/generics.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 | /     /**
[INFO] [stdout] 68 | |     if (switch) {
[INFO] [stdout] 69 | |         NewsArticle {
[INFO] [stdout] 70 | |             headline: "Hello World".to_string(),
[INFO] [stdout] ...  |
[INFO] [stdout] 81 | |         }
[INFO] [stdout] 82 | |     }**/
[INFO] [stdout]    | |________^
[INFO] [stdout] 83 | /     Tweet {
[INFO] [stdout] 84 | |         username: "infynyxx".to_string(),
[INFO] [stdout] 85 | |         content: "Hello World!".to_string(),
[INFO] [stdout] 86 | |         reply: false,
[INFO] [stdout] 87 | |         retweet: false,
[INFO] [stdout] 88 | |     }
[INFO] [stdout]    | |_____- rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: use `/* */` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> playground/src/iter.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> playground/src/generics.rs:58:24
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> playground/src/generics.rs:58:30
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `switch`
[INFO] [stdout]   --> playground/src/generics.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn get_summarizable(switch: bool) -> impl Summary {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_switch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cacher`
[INFO] [stdout]  --> playground/src/closures.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Cacher<T>
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> playground/src/closures.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(calculation: T) -> Cacher<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value`
[INFO] [stdout]   --> playground/src/closures.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn value(&mut self, arg: u32) -> u32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_workout`
[INFO] [stdout]   --> playground/src/closures.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `V4`
[INFO] [stdout]  --> playground/src/enums.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     V4(u8, u8, u8, u8),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `V6`
[INFO] [stdout]  --> playground/src/enums.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     V6(String),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `call`
[INFO] [stdout]  --> playground/src/enums.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn call(&self) {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> playground/src/generics.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Point<T> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `distance_from_origin`
[INFO] [stdout]   --> playground/src/generics.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn distance_from_origin(&self) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `content`
[INFO] [stdout]   --> playground/src/generics.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub content: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `reply`
[INFO] [stdout]   --> playground/src/generics.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub reply: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `retweet`
[INFO] [stdout]   --> playground/src/generics.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub retweet: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `notify`
[INFO] [stdout]   --> playground/src/generics.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn notify<T: Summary + Display>(item: T) -> String {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `some_function`
[INFO] [stdout]   --> playground/src/generics.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_summarizable`
[INFO] [stdout]   --> playground/src/generics.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn get_summarizable(switch: bool) -> impl Summary {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `largest`
[INFO] [stdout]   --> playground/src/generics.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn largest<T: PartialOrd + Copy>(list: &[T]) -> T {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shows_in_my_size`
[INFO] [stdout]  --> playground/src/iter.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn shows_in_my_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> playground/src/iter.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new() -> Counter {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `longest`
[INFO] [stdout]   --> playground/src/lifetime.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn longest<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ImportantExcerpt`
[INFO] [stdout]   --> playground/src/lifetime.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct ImportantExcerpt<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `announce_and_return_part`
[INFO] [stdout]   --> playground/src/lifetime.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn announce_and_return_part(&self, s: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `longest_with_announcement`
[INFO] [stdout]   --> playground/src/lifetime.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn longest_with_announcement<'a, T: std::fmt::Display>(x: &'a str, y: &'a str, ann: T) -> &'a str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `width`
[INFO] [stdout]  --> playground/src/structs.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     width: u32,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]  --> playground/src/structs.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     height: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `area`
[INFO] [stdout]  --> playground/src/structs.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn area(&self) -> u32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]   --> playground/src/structs.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn can_hold(&self, other: Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]   --> playground/src/structs.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> playground/src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     x: f64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> playground/src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     y: f64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> playground/src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         channel.send(result);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 57s
[INFO] running `Command { std: "docker" "inspect" "3e27ddc2e9339e48399836294ccbc350cb124881346f7e8623a77bc9c3565ca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e27ddc2e9339e48399836294ccbc350cb124881346f7e8623a77bc9c3565ca4", kill_on_drop: false }`
[INFO] [stdout] 3e27ddc2e9339e48399836294ccbc350cb124881346f7e8623a77bc9c3565ca4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ac1d6b0bf27e7c005a9c5d6247bf5ce571b0d2266f3bcb9dda5e1a844d2a180
[INFO] running `Command { std: "docker" "start" "-a" "7ac1d6b0bf27e7c005a9c5d6247bf5ce571b0d2266f3bcb9dda5e1a844d2a180", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> playground/src/error_handling.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> playground/src/error_handling.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> playground/src/error_handling.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> playground/src/error_handling.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tempfile::tempdir`
[INFO] [stdout]  --> playground/src/error_handling.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tempfile::tempdir;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> playground/src/generics.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 | /     /**
[INFO] [stdout] 68 | |     if (switch) {
[INFO] [stdout] 69 | |         NewsArticle {
[INFO] [stdout] 70 | |             headline: "Hello World".to_string(),
[INFO] [stdout] ...  |
[INFO] [stdout] 81 | |         }
[INFO] [stdout] 82 | |     }**/
[INFO] [stdout]    | |________^
[INFO] [stdout] 83 | /     Tweet {
[INFO] [stdout] 84 | |         username: "infynyxx".to_string(),
[INFO] [stdout] 85 | |         content: "Hello World!".to_string(),
[INFO] [stdout] 86 | |         reply: false,
[INFO] [stdout] 87 | |         retweet: false,
[INFO] [stdout] 88 | |     }
[INFO] [stdout]    | |_____- rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: use `/* */` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> playground/src/iter.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> playground/src/generics.rs:58:24
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> playground/src/generics.rs:58:30
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `switch`
[INFO] [stdout]   --> playground/src/generics.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn get_summarizable(switch: bool) -> impl Summary {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_switch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cacher`
[INFO] [stdout]  --> playground/src/closures.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Cacher<T>
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> playground/src/closures.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(calculation: T) -> Cacher<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value`
[INFO] [stdout]   --> playground/src/closures.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn value(&mut self, arg: u32) -> u32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_workout`
[INFO] [stdout]   --> playground/src/closures.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `V4`
[INFO] [stdout]  --> playground/src/enums.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     V4(u8, u8, u8, u8),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `V6`
[INFO] [stdout]  --> playground/src/enums.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     V6(String),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `call`
[INFO] [stdout]  --> playground/src/enums.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn call(&self) {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> playground/src/generics.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Point<T> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `distance_from_origin`
[INFO] [stdout]   --> playground/src/generics.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn distance_from_origin(&self) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `content`
[INFO] [stdout]   --> playground/src/generics.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub content: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `reply`
[INFO] [stdout]   --> playground/src/generics.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub reply: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `retweet`
[INFO] [stdout]   --> playground/src/generics.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub retweet: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `notify`
[INFO] [stdout]   --> playground/src/generics.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn notify<T: Summary + Display>(item: T) -> String {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `some_function`
[INFO] [stdout]   --> playground/src/generics.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_summarizable`
[INFO] [stdout]   --> playground/src/generics.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn get_summarizable(switch: bool) -> impl Summary {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `largest`
[INFO] [stdout]   --> playground/src/generics.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn largest<T: PartialOrd + Copy>(list: &[T]) -> T {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shows_in_my_size`
[INFO] [stdout]  --> playground/src/iter.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn shows_in_my_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> playground/src/iter.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new() -> Counter {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `longest`
[INFO] [stdout]   --> playground/src/lifetime.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn longest<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ImportantExcerpt`
[INFO] [stdout]   --> playground/src/lifetime.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct ImportantExcerpt<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `announce_and_return_part`
[INFO] [stdout]   --> playground/src/lifetime.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn announce_and_return_part(&self, s: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `longest_with_announcement`
[INFO] [stdout]   --> playground/src/lifetime.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn longest_with_announcement<'a, T: std::fmt::Display>(x: &'a str, y: &'a str, ann: T) -> &'a str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `width`
[INFO] [stdout]  --> playground/src/structs.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     width: u32,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]  --> playground/src/structs.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     height: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `area`
[INFO] [stdout]  --> playground/src/structs.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn area(&self) -> u32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]   --> playground/src/structs.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn can_hold(&self, other: Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]   --> playground/src/structs.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> playground/src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     x: f64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> playground/src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     y: f64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir/playground)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> playground/src/generics.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 | /     /**
[INFO] [stdout] 68 | |     if (switch) {
[INFO] [stdout] 69 | |         NewsArticle {
[INFO] [stdout] 70 | |             headline: "Hello World".to_string(),
[INFO] [stdout] ...  |
[INFO] [stdout] 81 | |         }
[INFO] [stdout] 82 | |     }**/
[INFO] [stdout]    | |________^
[INFO] [stdout] 83 | /     Tweet {
[INFO] [stdout] 84 | |         username: "infynyxx".to_string(),
[INFO] [stdout] 85 | |         content: "Hello World!".to_string(),
[INFO] [stdout] 86 | |         reply: false,
[INFO] [stdout] 87 | |         retweet: false,
[INFO] [stdout] 88 | |     }
[INFO] [stdout]    | |_____- rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: use `/* */` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> playground/src/generics.rs:58:24
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> playground/src/generics.rs:58:30
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `switch`
[INFO] [stdout]   --> playground/src/generics.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn get_summarizable(switch: bool) -> impl Summary {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_switch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cacher`
[INFO] [stdout]  --> playground/src/closures.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Cacher<T>
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> playground/src/closures.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(calculation: T) -> Cacher<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value`
[INFO] [stdout]   --> playground/src/closures.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn value(&mut self, arg: u32) -> u32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_workout`
[INFO] [stdout]   --> playground/src/closures.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `call`
[INFO] [stdout]  --> playground/src/enums.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn call(&self) {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `content`
[INFO] [stdout]   --> playground/src/generics.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub content: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `reply`
[INFO] [stdout]   --> playground/src/generics.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub reply: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `retweet`
[INFO] [stdout]   --> playground/src/generics.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub retweet: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `some_function`
[INFO] [stdout]   --> playground/src/generics.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_summarizable`
[INFO] [stdout]   --> playground/src/generics.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn get_summarizable(switch: bool) -> impl Summary {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ImportantExcerpt`
[INFO] [stdout]   --> playground/src/lifetime.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct ImportantExcerpt<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `announce_and_return_part`
[INFO] [stdout]   --> playground/src/lifetime.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn announce_and_return_part(&self, s: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> playground/src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     x: f64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> playground/src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     y: f64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_V4` should have a snake case name
[INFO] [stdout]   --> playground/src/enums.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn test_V4() {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `test_v4`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_V6` should have a snake case name
[INFO] [stdout]   --> playground/src/enums.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn test_V6() {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `test_v6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.61s
[INFO] running `Command { std: "docker" "inspect" "7ac1d6b0bf27e7c005a9c5d6247bf5ce571b0d2266f3bcb9dda5e1a844d2a180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ac1d6b0bf27e7c005a9c5d6247bf5ce571b0d2266f3bcb9dda5e1a844d2a180", kill_on_drop: false }`
[INFO] [stdout] 7ac1d6b0bf27e7c005a9c5d6247bf5ce571b0d2266f3bcb9dda5e1a844d2a180
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6df90daf29342cadf2b60734e1e0800fc0c2fe4a6894a89f5a753db38beff365
[INFO] running `Command { std: "docker" "start" "-a" "6df90daf29342cadf2b60734e1e0800fc0c2fe4a6894a89f5a753db38beff365", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> playground/src/error_handling.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> playground/src/error_handling.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> playground/src/error_handling.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> playground/src/error_handling.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tempfile::tempdir`
[INFO] [stderr]  --> playground/src/error_handling.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use tempfile::tempdir;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> playground/src/generics.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 | /     /**
[INFO] [stderr] 68 | |     if (switch) {
[INFO] [stderr] 69 | |         NewsArticle {
[INFO] [stderr] 70 | |             headline: "Hello World".to_string(),
[INFO] [stderr] ...  |
[INFO] [stderr] 81 | |         }
[INFO] [stderr] 82 | |     }**/
[INFO] [stderr]    | |________^
[INFO] [stderr] 83 | /     Tweet {
[INFO] [stderr] 84 | |         username: "infynyxx".to_string(),
[INFO] [stderr] 85 | |         content: "Hello World!".to_string(),
[INFO] [stderr] 86 | |         reply: false,
[INFO] [stderr] 87 | |         retweet: false,
[INFO] [stderr] 88 | |     }
[INFO] [stderr]    | |_____- rustdoc does not generate documentation for expressions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: use `/* */` for a plain comment
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> playground/src/iter.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> playground/src/generics.rs:58:24
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stderr]    |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]   --> playground/src/generics.rs:58:30
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stderr]    |                              ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `switch`
[INFO] [stderr]   --> playground/src/generics.rs:66:21
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn get_summarizable(switch: bool) -> impl Summary {
[INFO] [stderr]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_switch`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Cacher`
[INFO] [stderr]  --> playground/src/closures.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Cacher<T>
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> playground/src/closures.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn new(calculation: T) -> Cacher<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `value`
[INFO] [stderr]   --> playground/src/closures.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn value(&mut self, arg: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `generate_workout`
[INFO] [stderr]   --> playground/src/closures.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `V4`
[INFO] [stderr]  --> playground/src/enums.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     V4(u8, u8, u8, u8),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `V6`
[INFO] [stderr]  --> playground/src/enums.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     V6(String),
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `call`
[INFO] [stderr]  --> playground/src/enums.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn call(&self) {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point`
[INFO] [stderr]  --> playground/src/generics.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Point<T> {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `distance_from_origin`
[INFO] [stderr]   --> playground/src/generics.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn distance_from_origin(&self) -> f32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `content`
[INFO] [stderr]   --> playground/src/generics.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub content: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `reply`
[INFO] [stderr]   --> playground/src/generics.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub reply: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `retweet`
[INFO] [stderr]   --> playground/src/generics.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub retweet: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `notify`
[INFO] [stderr]   --> playground/src/generics.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn notify<T: Summary + Display>(item: T) -> String {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `some_function`
[INFO] [stderr]   --> playground/src/generics.rs:58:4
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_summarizable`
[INFO] [stderr]   --> playground/src/generics.rs:66:4
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn get_summarizable(switch: bool) -> impl Summary {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `largest`
[INFO] [stderr]   --> playground/src/generics.rs:91:4
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn largest<T: PartialOrd + Copy>(list: &[T]) -> T {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shows_in_my_size`
[INFO] [stderr]  --> playground/src/iter.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn shows_in_my_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> playground/src/iter.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn new() -> Counter {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `longest`
[INFO] [stderr]   --> playground/src/lifetime.rs:25:4
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn longest<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ImportantExcerpt`
[INFO] [stderr]   --> playground/src/lifetime.rs:51:8
[INFO] [stderr]    |
[INFO] [stderr] 51 | struct ImportantExcerpt<'a> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `announce_and_return_part`
[INFO] [stderr]   --> playground/src/lifetime.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn announce_and_return_part(&self, s: &str) -> &str {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `longest_with_announcement`
[INFO] [stderr]   --> playground/src/lifetime.rs:62:4
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn longest_with_announcement<'a, T: std::fmt::Display>(x: &'a str, y: &'a str, ann: T) -> &'a str {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `width`
[INFO] [stderr]  --> playground/src/structs.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     width: u32,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `height`
[INFO] [stderr]  --> playground/src/structs.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     height: u32,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `area`
[INFO] [stderr]  --> playground/src/structs.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn area(&self) -> u32 {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `can_hold`
[INFO] [stderr]   --> playground/src/structs.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn can_hold(&self, other: Rectangle) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `square`
[INFO] [stderr]   --> playground/src/structs.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn square(size: u32) -> Rectangle {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]   --> playground/src/lib.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     x: f64,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]   --> playground/src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     y: f64,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_V4` should have a snake case name
[INFO] [stderr]   --> playground/src/enums.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn test_V4() {
[INFO] [stderr]    |    ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `test_v4`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_V6` should have a snake case name
[INFO] [stderr]   --> playground/src/enums.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn test_V6() {
[INFO] [stderr]    |    ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `test_v6`
[INFO] [stderr] 
[INFO] [stderr] warning: `playground` (lib) generated 39 warnings
[INFO] [stderr] warning: `playground` (lib test) generated 20 warnings (18 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.45s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/minigrep-777b84cce3f74b03)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::one_result ... ok
[INFO] [stdout] test tests::case_insensitive ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::case_insensitive stdout ----
[INFO] [stdout] thread 'tests::case_insensitive' panicked at 'Tried to setenv '"CASE_INSENSITIVE"' while process has multiple threads', library/std/src/sys/unix/os.rs:559:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x558a9c9617ac - std::backtrace_rs::backtrace::libunwind::trace::h793e05efd273d0f4
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x558a9c9617ac - std::backtrace_rs::backtrace::trace_unsynchronized::h640b7b86ff610c77
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x558a9c9617ac - std::sys_common::backtrace::_print_fmt::h362fa2a4f354f877
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x558a9c9617ac - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf439e5ed84c74abd
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x558a9c984f5c - core::fmt::write::h72801a82c94e6ff1
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/fmt/mod.rs:1149:17
[INFO] [stdout]    5:     0x558a9c95d755 - std::io::Write::write_fmt::h54337adeb3504c03
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/io/mod.rs:1697:15
[INFO] [stdout]    6:     0x558a9c963200 - std::sys_common::backtrace::_print::hb29ddd998d02631c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x558a9c963200 - std::sys_common::backtrace::print::h81965e3d7c90fbb6
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x558a9c963200 - std::panicking::default_hook::{{closure}}::h84db205ab6674b38
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:211:50
[INFO] [stdout]    9:     0x558a9c962de6 - std::panicking::default_hook::h1bf8bb4159936bca
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:225:9
[INFO] [stdout]   10:     0x558a9c9638b4 - std::panicking::rust_panic_with_hook::hf8e86850fbbd03b1
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:606:17
[INFO] [stdout]   11:     0x558a9c963390 - std::panicking::begin_panic_handler::{{closure}}::h590a0d6060ff866e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:502:13
[INFO] [stdout]   12:     0x558a9c961c64 - std::sys_common::backtrace::__rust_end_short_backtrace::h260b8bd1c848a03c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:139:18
[INFO] [stdout]   13:     0x558a9c9632f9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:498:5
[INFO] [stdout]   14:     0x558a9c8fb871 - core::panicking::panic_fmt::h7b8580d81fcbbacd
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panicking.rs:106:14
[INFO] [stdout]   15:     0x558a9c95a204 - std::sys::unix::os::setenv::h76103fb51bceafed
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/os.rs:559:9
[INFO] [stdout]   16:     0x558a9c95a204 - std::env::_set_var::h92fd991ae4bac337
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/env.rs:335:5
[INFO] [stdout]   17:     0x558a9c906ea7 - std::env::set_var::h598ac2bd2a3a68ab
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/env.rs:331:5
[INFO] [stdout]   18:     0x558a9c90027a - minigrep::tests::case_insensitive::h2ebf2941d7de206b
[INFO] [stdout]                                at /opt/rustwide/workdir/minigrep/src/lib.rs:88:9
[INFO] [stdout]   19:     0x558a9c90022a - minigrep::tests::case_insensitive::{{closure}}::h9726ffcdac7108a7
[INFO] [stdout]                                at /opt/rustwide/workdir/minigrep/src/lib.rs:85:5
[INFO] [stdout]   20:     0x558a9c90307e - core::ops::function::FnOnce::call_once::h5059ce40b1d0027a
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x558a9c93ed93 - core::ops::function::FnOnce::call_once::h24a32b9da1a40fdb
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x558a9c93ed93 - test::__rust_begin_short_backtrace::h3c3a0492fb4a12eb
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:585:5
[INFO] [stdout]   23:     0x558a9c93d9a7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h9a8e38435f73d5e0
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   24:     0x558a9c93d9a7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb23d7496a0e6d1b4
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   25:     0x558a9c93d9a7 - std::panicking::try::do_call::ha2bb9825b32d2cc2
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   26:     0x558a9c93d9a7 - std::panicking::try::hdc38a574bbebc53e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   27:     0x558a9c93d9a7 - std::panic::catch_unwind::hc45ed246595c621c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   28:     0x558a9c93d9a7 - test::run_test_in_process::h4249138faaea8d54
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:608:18
[INFO] [stdout]   29:     0x558a9c93d9a7 - test::run_test::run_test_inner::{{closure}}::h3c1b37669f6e9fd7
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:500:39
[INFO] [stdout]   30:     0x558a9c90ac4e - test::run_test::run_test_inner::{{closure}}::h388760469edd5c24
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:527:37
[INFO] [stdout]   31:     0x558a9c90ac4e - std::sys_common::backtrace::__rust_begin_short_backtrace::hbbaecdcfad18643e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stdout]   32:     0x558a9c90f9a8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h09cd3ca65896da91
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:484:17
[INFO] [stdout]   33:     0x558a9c90f9a8 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc52dbb4f9088d18b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   34:     0x558a9c90f9a8 - std::panicking::try::do_call::h4485cfee22b11c08
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   35:     0x558a9c90f9a8 - std::panicking::try::hb62aa8549e20c08b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   36:     0x558a9c90f9a8 - std::panic::catch_unwind::ha322c7a5bc666762
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   37:     0x558a9c90f9a8 - std::thread::Builder::spawn_unchecked::{{closure}}::h1076fc1398603b77
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:483:30
[INFO] [stdout]   38:     0x558a9c90f9a8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h911e510344167353
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   39:     0x558a9c968913 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h771719d52c343434
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   40:     0x558a9c968913 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf441746dfa4b0f57
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   41:     0x558a9c968913 - std::sys::unix::thread::Thread::new::thread_start::hfd168f9d312b29ca
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/thread.rs:106:17
[INFO] [stdout]   42:     0x7f68545b2609 - start_thread
[INFO] [stdout]   43:     0x7f6854384293 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::case_insensitive
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '-p minigrep --lib'
[INFO] running `Command { std: "docker" "inspect" "6df90daf29342cadf2b60734e1e0800fc0c2fe4a6894a89f5a753db38beff365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6df90daf29342cadf2b60734e1e0800fc0c2fe4a6894a89f5a753db38beff365", kill_on_drop: false }`
[INFO] [stdout] 6df90daf29342cadf2b60734e1e0800fc0c2fe4a6894a89f5a753db38beff365