[INFO] cloning repository https://github.com/inblack67/Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/inblack67/Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finblack67%2FRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finblack67%2FRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0710c7cf0e876b9817ebd736d8e11750456e87fd
[INFO] testing inblack67/Rust against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finblack67%2FRust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/inblack67/Rust on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/inblack67/Rust
[INFO] finished tweaking git repo https://github.com/inblack67/Rust
[INFO] tweaked toml for git repo https://github.com/inblack67/Rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/inblack67/Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 206232d6a4ce0cf5af8befd513fe1e645476809a8af3559e310494b297fdb726
[INFO] running `Command { std: "docker" "start" "-a" "206232d6a4ce0cf5af8befd513fe1e645476809a8af3559e310494b297fdb726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "206232d6a4ce0cf5af8befd513fe1e645476809a8af3559e310494b297fdb726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "206232d6a4ce0cf5af8befd513fe1e645476809a8af3559e310494b297fdb726", kill_on_drop: false }`
[INFO] [stdout] 206232d6a4ce0cf5af8befd513fe1e645476809a8af3559e310494b297fdb726
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b609d2405b80bb73fbf11beb29455430d00be8d997cc7abfb9e9c7deab1cca6c
[INFO] running `Command { std: "docker" "start" "-a" "b609d2405b80bb73fbf11beb29455430d00be8d997cc7abfb9e9c7deab1cca6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling Rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/generics.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let s = Square { x: 1 };
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/generics.rs:29:6
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let s = Square { x: "hello" };
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/generics.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let s = Square { x: true };
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lifetimes.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let s: &'static str = "static life"; // will live until the entire duration of the program
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/vectors.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let x: Vec<i32> = vec![1, 2, 3]; // resizable array => length not known at compile time
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/enums.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 10 |     x: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/enums.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 |     y: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DOWN`
[INFO] [stdout]   --> src/enums.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |     DOWN(Point),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LEFT`
[INFO] [stdout]   --> src/enums.rs:17:2
[INFO] [stdout]    |
[INFO] [stdout] 17 |     LEFT(Point),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RIGHT`
[INFO] [stdout]   --> src/enums.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 18 |     RIGHT(Point),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DownKey`
[INFO] [stdout]   --> src/enums.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 24 |     DownKey(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LeftKey`
[INFO] [stdout]   --> src/enums.rs:25:2
[INFO] [stdout]    |
[INFO] [stdout] 25 |     LeftKey(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RightKey`
[INFO] [stdout]   --> src/enums.rs:26:2
[INFO] [stdout]    |
[INFO] [stdout] 26 |     RightKey(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `p`
[INFO] [stdout]  --> src/generics.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn p<T: fmt::Debug>(x: T) {
[INFO] [stdout]   |    ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]  --> src/generics.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     x: T,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `A`
[INFO] [stdout]   --> src/generics.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct A<T> {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `item`
[INFO] [stdout]   --> src/generics.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn item(&self) -> &T {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `M`
[INFO] [stdout]   --> src/generics.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct M<U, V> {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pr`
[INFO] [stdout]  --> src/lifetimes.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn pr<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stdout]   |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `A`
[INFO] [stdout]   --> src/lifetimes.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct A<'a, 'b> {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `MyOption`
[INFO] [stdout]  --> src/options.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum MyOption<T> {
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Result`
[INFO] [stdout]  --> src/result_enum.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Result<T, E> {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `Command { std: "docker" "inspect" "b609d2405b80bb73fbf11beb29455430d00be8d997cc7abfb9e9c7deab1cca6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b609d2405b80bb73fbf11beb29455430d00be8d997cc7abfb9e9c7deab1cca6c", kill_on_drop: false }`
[INFO] [stdout] b609d2405b80bb73fbf11beb29455430d00be8d997cc7abfb9e9c7deab1cca6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 769b9da8384940dc51efeff8538e4dc9043561b4d7e829e5bba84ba84ef56b66
[INFO] running `Command { std: "docker" "start" "-a" "769b9da8384940dc51efeff8538e4dc9043561b4d7e829e5bba84ba84ef56b66", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling Rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/generics.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let s = Square { x: 1 };
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/generics.rs:29:6
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let s = Square { x: "hello" };
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/generics.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let s = Square { x: true };
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lifetimes.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let s: &'static str = "static life"; // will live until the entire duration of the program
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/vectors.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let x: Vec<i32> = vec![1, 2, 3]; // resizable array => length not known at compile time
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/enums.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 10 |     x: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/enums.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 |     y: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DOWN`
[INFO] [stdout]   --> src/enums.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |     DOWN(Point),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LEFT`
[INFO] [stdout]   --> src/enums.rs:17:2
[INFO] [stdout]    |
[INFO] [stdout] 17 |     LEFT(Point),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RIGHT`
[INFO] [stdout]   --> src/enums.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 18 |     RIGHT(Point),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DownKey`
[INFO] [stdout]   --> src/enums.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 24 |     DownKey(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LeftKey`
[INFO] [stdout]   --> src/enums.rs:25:2
[INFO] [stdout]    |
[INFO] [stdout] 25 |     LeftKey(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RightKey`
[INFO] [stdout]   --> src/enums.rs:26:2
[INFO] [stdout]    |
[INFO] [stdout] 26 |     RightKey(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `p`
[INFO] [stdout]  --> src/generics.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn p<T: fmt::Debug>(x: T) {
[INFO] [stdout]   |    ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]  --> src/generics.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     x: T,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `A`
[INFO] [stdout]   --> src/generics.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct A<T> {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `item`
[INFO] [stdout]   --> src/generics.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn item(&self) -> &T {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `M`
[INFO] [stdout]   --> src/generics.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct M<U, V> {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pr`
[INFO] [stdout]  --> src/lifetimes.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn pr<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stdout]   |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `A`
[INFO] [stdout]   --> src/lifetimes.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct A<'a, 'b> {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `MyOption`
[INFO] [stdout]  --> src/options.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum MyOption<T> {
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Result`
[INFO] [stdout]  --> src/result_enum.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Result<T, E> {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.72s
[INFO] running `Command { std: "docker" "inspect" "769b9da8384940dc51efeff8538e4dc9043561b4d7e829e5bba84ba84ef56b66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "769b9da8384940dc51efeff8538e4dc9043561b4d7e829e5bba84ba84ef56b66", kill_on_drop: false }`
[INFO] [stdout] 769b9da8384940dc51efeff8538e4dc9043561b4d7e829e5bba84ba84ef56b66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 47b2968647505282855db837af9d074c0b1e50654e7f67917edb3f2257af19c9
[INFO] running `Command { std: "docker" "start" "-a" "47b2968647505282855db837af9d074c0b1e50654e7f67917edb3f2257af19c9", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/generics.rs:28:6
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let s = Square { x: 1 };
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/generics.rs:29:6
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let s = Square { x: "hello" };
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/generics.rs:30:6
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let s = Square { x: true };
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/lifetimes.rs:20:6
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let s: &'static str = "static life"; // will live until the entire duration of the program
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/vectors.rs:10:6
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let x: Vec<i32> = vec![1, 2, 3]; // resizable array => length not known at compile time
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]   --> src/enums.rs:10:2
[INFO] [stderr]    |
[INFO] [stderr] 10 |     x: u32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]   --> src/enums.rs:11:2
[INFO] [stderr]    |
[INFO] [stderr] 11 |     y: u32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DOWN`
[INFO] [stderr]   --> src/enums.rs:16:2
[INFO] [stderr]    |
[INFO] [stderr] 16 |     DOWN(Point),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LEFT`
[INFO] [stderr]   --> src/enums.rs:17:2
[INFO] [stderr]    |
[INFO] [stderr] 17 |     LEFT(Point),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RIGHT`
[INFO] [stderr]   --> src/enums.rs:18:2
[INFO] [stderr]    |
[INFO] [stderr] 18 |     RIGHT(Point),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DownKey`
[INFO] [stderr]   --> src/enums.rs:24:2
[INFO] [stderr]    |
[INFO] [stderr] 24 |     DownKey(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LeftKey`
[INFO] [stderr]   --> src/enums.rs:25:2
[INFO] [stderr]    |
[INFO] [stderr] 25 |     LeftKey(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RightKey`
[INFO] [stderr]   --> src/enums.rs:26:2
[INFO] [stderr]    |
[INFO] [stderr] 26 |     RightKey(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `p`
[INFO] [stderr]  --> src/generics.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn p<T: fmt::Debug>(x: T) {
[INFO] [stderr]   |    ^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]  --> src/generics.rs:9:2
[INFO] [stderr]   |
[INFO] [stderr] 9 |     x: T,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `A`
[INFO] [stderr]   --> src/generics.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct A<T> {
[INFO] [stderr]    |        ^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `item`
[INFO] [stderr]   --> src/generics.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn item(&self) -> &T {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `M`
[INFO] [stderr]   --> src/generics.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | struct M<U, V> {
[INFO] [stderr]    |        ^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pr`
[INFO] [stderr]  --> src/lifetimes.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn pr<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stderr]   |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `A`
[INFO] [stderr]   --> src/lifetimes.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct A<'a, 'b> {
[INFO] [stderr]    |        ^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `MyOption`
[INFO] [stderr]  --> src/options.rs:4:6
[INFO] [stderr]   |
[INFO] [stderr] 4 | enum MyOption<T> {
[INFO] [stderr]   |      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Result`
[INFO] [stderr]  --> src/result_enum.rs:4:6
[INFO] [stderr]   |
[INFO] [stderr] 4 | enum Result<T, E> {
[INFO] [stderr]   |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `Rust` (bin "Rust" test) generated 22 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/Rust-9fae6822d187fa5e)
[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" "47b2968647505282855db837af9d074c0b1e50654e7f67917edb3f2257af19c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b2968647505282855db837af9d074c0b1e50654e7f67917edb3f2257af19c9", kill_on_drop: false }`
[INFO] [stdout] 47b2968647505282855db837af9d074c0b1e50654e7f67917edb3f2257af19c9