[INFO] cloning repository https://github.com/amitjain-in/rst
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amitjain-in/rst" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famitjain-in%2Frst", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famitjain-in%2Frst'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0d41532e5e6c70010c6befe02796d4705c56fab
[INFO] testing amitjain-in/rst/c0d41532e5e6c70010c6befe02796d4705c56fab against master#414482f6a0d4e7290f614300581a0b55442552a3 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famitjain-in%2Frst" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amitjain-in/rst on toolchain 414482f6a0d4e7290f614300581a0b55442552a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amitjain-in/rst
[INFO] finished tweaking git repo https://github.com/amitjain-in/rst
[INFO] tweaked toml for git repo https://github.com/amitjain-in/rst written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/amitjain-in/rst 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" "+414482f6a0d4e7290f614300581a0b55442552a3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8841429dd3b5686ad6dc666f2607985a9abe95001240de36a2b0138fc63b599
[INFO] running `Command { std: "docker" "start" "-a" "e8841429dd3b5686ad6dc666f2607985a9abe95001240de36a2b0138fc63b599", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8841429dd3b5686ad6dc666f2607985a9abe95001240de36a2b0138fc63b599", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8841429dd3b5686ad6dc666f2607985a9abe95001240de36a2b0138fc63b599", kill_on_drop: false }`
[INFO] [stdout] e8841429dd3b5686ad6dc666f2607985a9abe95001240de36a2b0138fc63b599
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5af89c7892ec922d0b80b135c1d997cc114b8041142fb4e66e11fb2c2fd7e8ea
[INFO] running `Command { std: "docker" "start" "-a" "5af89c7892ec922d0b80b135c1d997cc114b8041142fb4e66e11fb2c2fd7e8ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rst v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::games::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::games::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::shadow::shadowing`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::shadow::shadowing;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/enums.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{Formatter, write};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/data_types.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let (x, y, z) = t;
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/data_types.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let (x, y, z) = t;
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]   --> src/enums.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let square = Square {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rectangle`
[INFO] [stdout]   --> src/enums.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let rectangle = Rectangle {
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rectangle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_structs` is never used
[INFO] [stdout]   --> src/main.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn learn_structs() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_slicing` is never used
[INFO] [stdout]   --> src/main.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn learn_slicing() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_ownership` is never used
[INFO] [stdout]   --> src/main.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn learn_ownership() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_data_types` is never used
[INFO] [stdout]   --> src/main.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn learn_data_types() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_ctrl` is never used
[INFO] [stdout]   --> src/main.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn learn_ctrl() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_arrays` is never used
[INFO] [stdout]   --> src/main.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn learn_arrays() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_functions` is never used
[INFO] [stdout]   --> src/main.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn learn_functions() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transfer_ownership_to_me` is never used
[INFO] [stdout]   --> src/ownership.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn transfer_ownership_to_me(s: String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employee` is never constructed
[INFO] [stdout]  --> src/structs.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Employee {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `net_salary` and `associated_function` are never used
[INFO] [stdout]   --> src/structs.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Employee {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 10 |     fn net_salary(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn associated_function() {//like static methods of OOP language
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `struct_sample` is never used
[INFO] [stdout]   --> src/structs.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn struct_sample() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `GREEN` and `BLUE` are never constructed
[INFO] [stdout]  --> src/enums.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Colour {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 6 |     RED,
[INFO] [stdout] 7 |     GREEN,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     BLUE,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `side` is never read
[INFO] [stdout]   --> src/enums.rs:40:14
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Square { side: i32 },
[INFO] [stdout]    |     ------   ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/enums.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Rectangle { width: i32, height: i32 },
[INFO] [stdout]    |     ---------   ^^^^^       ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Box` and `Circle` are never constructed
[INFO] [stdout]   --> src/enums.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | enum Shape {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 42 |     Box { width: i32, height: i32, depth: i32 },
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 43 |     Circle { radius: i32 },
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `Command { std: "docker" "inspect" "5af89c7892ec922d0b80b135c1d997cc114b8041142fb4e66e11fb2c2fd7e8ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5af89c7892ec922d0b80b135c1d997cc114b8041142fb4e66e11fb2c2fd7e8ea", kill_on_drop: false }`
[INFO] [stdout] 5af89c7892ec922d0b80b135c1d997cc114b8041142fb4e66e11fb2c2fd7e8ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8b827a1a8fc3078656172ed736444a1c80c023d66f99fbb97179af6bf299ac6
[INFO] running `Command { std: "docker" "start" "-a" "a8b827a1a8fc3078656172ed736444a1c80c023d66f99fbb97179af6bf299ac6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rst v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::games::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::games::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::shadow::shadowing`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::shadow::shadowing;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/enums.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{Formatter, write};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/data_types.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let (x, y, z) = t;
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/data_types.rs:24:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let (x, y, z) = t;
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]   --> src/enums.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let square = Square {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rectangle`
[INFO] [stdout]   --> src/enums.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let rectangle = Rectangle {
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rectangle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_structs` is never used
[INFO] [stdout]   --> src/main.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn learn_structs() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_slicing` is never used
[INFO] [stdout]   --> src/main.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn learn_slicing() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_ownership` is never used
[INFO] [stdout]   --> src/main.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn learn_ownership() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_data_types` is never used
[INFO] [stdout]   --> src/main.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn learn_data_types() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_ctrl` is never used
[INFO] [stdout]   --> src/main.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn learn_ctrl() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_arrays` is never used
[INFO] [stdout]   --> src/main.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn learn_arrays() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_functions` is never used
[INFO] [stdout]   --> src/main.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn learn_functions() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transfer_ownership_to_me` is never used
[INFO] [stdout]   --> src/ownership.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn transfer_ownership_to_me(s: String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employee` is never constructed
[INFO] [stdout]  --> src/structs.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Employee {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `net_salary` and `associated_function` are never used
[INFO] [stdout]   --> src/structs.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Employee {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 10 |     fn net_salary(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn associated_function() {//like static methods of OOP language
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `struct_sample` is never used
[INFO] [stdout]   --> src/structs.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn struct_sample() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `GREEN` and `BLUE` are never constructed
[INFO] [stdout]  --> src/enums.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Colour {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 6 |     RED,
[INFO] [stdout] 7 |     GREEN,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     BLUE,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `side` is never read
[INFO] [stdout]   --> src/enums.rs:40:14
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Square { side: i32 },
[INFO] [stdout]    |     ------   ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/enums.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Rectangle { width: i32, height: i32 },
[INFO] [stdout]    |     ---------   ^^^^^       ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Box` and `Circle` are never constructed
[INFO] [stdout]   --> src/enums.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | enum Shape {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 42 |     Box { width: i32, height: i32, depth: i32 },
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 43 |     Circle { radius: i32 },
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "a8b827a1a8fc3078656172ed736444a1c80c023d66f99fbb97179af6bf299ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8b827a1a8fc3078656172ed736444a1c80c023d66f99fbb97179af6bf299ac6", kill_on_drop: false }`
[INFO] [stdout] a8b827a1a8fc3078656172ed736444a1c80c023d66f99fbb97179af6bf299ac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2b5e27070e6669385ec75d2ed178bf8078427bc4018715c33625fa0bbb20ec3d
[INFO] running `Command { std: "docker" "start" "-a" "2b5e27070e6669385ec75d2ed178bf8078427bc4018715c33625fa0bbb20ec3d", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::games::*`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::games::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::shadow::shadowing`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::shadow::shadowing;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `write`
[INFO] [stderr]  --> src/enums.rs:2:27
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt::{Formatter, write};
[INFO] [stderr]   |                           ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/data_types.rs:24:10
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let (x, y, z) = t;
[INFO] [stderr]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]   --> src/data_types.rs:24:16
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let (x, y, z) = t;
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `square`
[INFO] [stderr]   --> src/enums.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let square = Square {
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rectangle`
[INFO] [stderr]   --> src/enums.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let rectangle = Rectangle {
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rectangle`
[INFO] [stderr] 
[INFO] [stderr] warning: function `learn_structs` is never used
[INFO] [stderr]   --> src/main.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn learn_structs() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `learn_slicing` is never used
[INFO] [stderr]   --> src/main.rs:46:4
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn learn_slicing() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `learn_ownership` is never used
[INFO] [stderr]   --> src/main.rs:50:4
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn learn_ownership() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `learn_data_types` is never used
[INFO] [stderr]   --> src/main.rs:60:4
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn learn_data_types() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `learn_ctrl` is never used
[INFO] [stderr]   --> src/main.rs:65:4
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn learn_ctrl() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `learn_arrays` is never used
[INFO] [stderr]   --> src/main.rs:71:4
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn learn_arrays() {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `learn_functions` is never used
[INFO] [stderr]   --> src/main.rs:76:4
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn learn_functions() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `transfer_ownership_to_me` is never used
[INFO] [stderr]   --> src/ownership.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn transfer_ownership_to_me(s: String) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Employee` is never constructed
[INFO] [stderr]  --> src/structs.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Employee {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `net_salary` and `associated_function` are never used
[INFO] [stderr]   --> src/structs.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 9  | impl Employee {
[INFO] [stderr]    | ------------- associated items in this implementation
[INFO] [stderr] 10 |     fn net_salary(&self) -> f64 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 14 |     fn associated_function() {//like static methods of OOP language
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `struct_sample` is never used
[INFO] [stderr]   --> src/structs.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn struct_sample() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `GREEN` and `BLUE` are never constructed
[INFO] [stderr]  --> src/enums.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | enum Colour {
[INFO] [stderr]   |      ------ variants in this enum
[INFO] [stderr] 6 |     RED,
[INFO] [stderr] 7 |     GREEN,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 8 |     BLUE,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `side` is never read
[INFO] [stderr]   --> src/enums.rs:40:14
[INFO] [stderr]    |
[INFO] [stderr] 40 |     Square { side: i32 },
[INFO] [stderr]    |     ------   ^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr] 
[INFO] [stderr] warning: fields `width` and `height` are never read
[INFO] [stderr]   --> src/enums.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 |     Rectangle { width: i32, height: i32 },
[INFO] [stderr]    |     ---------   ^^^^^       ^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     fields in this variant
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Box` and `Circle` are never constructed
[INFO] [stderr]   --> src/enums.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 39 | enum Shape {
[INFO] [stderr]    |      ----- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 42 |     Box { width: i32, height: i32, depth: i32 },
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 43 |     Circle { radius: i32 },
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rst` (bin "rst" test) generated 22 warnings (run `cargo fix --bin "rst" --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rst-0b145e904cc46f27)
[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" "2b5e27070e6669385ec75d2ed178bf8078427bc4018715c33625fa0bbb20ec3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b5e27070e6669385ec75d2ed178bf8078427bc4018715c33625fa0bbb20ec3d", kill_on_drop: false }`
[INFO] [stdout] 2b5e27070e6669385ec75d2ed178bf8078427bc4018715c33625fa0bbb20ec3d