[INFO] cloning repository https://github.com/kris524/Rust-practise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kris524/Rust-practise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkris524%2FRust-practise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkris524%2FRust-practise'...
[INFO] [stderr] fatal: write error: No space left on device
[INFO] [stderr] fatal: fetch-pack: invalid index-pack output
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/kris524/Rust-practise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kris524/Rust-practise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkris524%2FRust-practise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkris524%2FRust-practise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a51566b1a8cbda337ce041c95be8d06ae359c6cd
[INFO] checking kris524/Rust-practise against master#cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9 for pr-136968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkris524%2FRust-practise" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kris524/Rust-practise on toolchain cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kris524/Rust-practise
[INFO] finished tweaking git repo https://github.com/kris524/Rust-practise
[INFO] tweaked toml for git repo https://github.com/kris524/Rust-practise written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f32976fb1dbd299969f3ac646c9a74cf1cb185dec7168e6c69606273922509ae
[INFO] running `Command { std: "docker" "start" "-a" "f32976fb1dbd299969f3ac646c9a74cf1cb185dec7168e6c69606273922509ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f32976fb1dbd299969f3ac646c9a74cf1cb185dec7168e6c69606273922509ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f32976fb1dbd299969f3ac646c9a74cf1cb185dec7168e6c69606273922509ae", kill_on_drop: false }`
[INFO] [stdout] f32976fb1dbd299969f3ac646c9a74cf1cb185dec7168e6c69606273922509ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6e0feacbb3e4186013ad9ec189ecb92f36ee28d89f42b8a0bbce6ff35341738
[INFO] running `Command { std: "docker" "start" "-a" "e6e0feacbb3e4186013ad9ec189ecb92f36ee28d89f42b8a0bbce6ff35341738", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking hashmap v0.1.0 (/opt/rustwide/workdir/hashmap)
[INFO] [stderr]     Checking concurrency v0.1.0 (/opt/rustwide/workdir/concurrency)
[INFO] [stderr]     Checking codewars v0.1.0 (/opt/rustwide/workdir/codewars)
[INFO] [stderr]     Checking ownership v0.1.0 (/opt/rustwide/workdir/ownership)
[INFO] [stderr]     Checking oop v0.1.0 (/opt/rustwide/workdir/oop)
[INFO] [stderr]     Checking builder v0.1.0 (/opt/rustwide/workdir/builder)
[INFO] [stderr]     Checking vec v0.1.0 (/opt/rustwide/workdir/vec)
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir/leetcode)
[INFO] [stderr]     Checking lifetimes v0.1.0 (/opt/rustwide/workdir/lifetimes)
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]   --> codewars/src/bin/traits.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn remove_every_other(arr: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]  --> codewars/src/bin/traits.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Point<T> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point2` is never constructed
[INFO] [stdout]   --> codewars/src/bin/traits.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Point2<T>(T,T);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Option` is never used
[INFO] [stdout]   --> codewars/src/bin/traits.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | enum Option<T> {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_every_other` is never used
[INFO] [stdout]   --> codewars/src/bin/traits.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn remove_every_other(arr: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected closing delimiter: `}`
[INFO] [stdout]   --> leetcode/src/main.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Solution {
[INFO] [stdout]    |               - this opening brace...
[INFO] [stdout] ...
[INFO] [stdout] 22 | }
[INFO] [stdout]    | - ...matches this closing brace
[INFO] [stdout] 23 |         
[INFO] [stdout] 24 | }
[INFO] [stdout]    | ^ unexpected closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImportExcerpt` is never constructed
[INFO] [stdout]   --> lifetimes/src/main.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct ImportExcerpt<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> hashmap/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `return_part` is never used
[INFO] [stdout]   --> lifetimes/src/main.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl <'a> ImportExcerpt<'a> {
[INFO] [stdout]    | --------------------------- method in this implementation
[INFO] [stdout] 18 |     fn return_part(&self, announcememts: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected closing delimiter: `}`
[INFO] [stdout]    --> codewars/src/main.rs:378:1
[INFO] [stdout]     |
[INFO] [stdout] 372 |     fn basic_tests() {
[INFO] [stdout]     |                      - this opening brace...
[INFO] [stdout] ...
[INFO] [stdout] 377 |     }
[INFO] [stdout]     |     - ...matches this closing brace
[INFO] [stdout] 378 | }
[INFO] [stdout]     | ^ unexpected closing delimiter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hasher`
[INFO] [stdout]  --> hashmap/src/lib.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::hash::{Hasher, Hash};
[INFO] [stdout]   |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hasher`
[INFO] [stdout]  --> hashmap/src/lib.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::hash::{Hasher, Hash};
[INFO] [stdout]   |                 ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_buffer` is never used
[INFO] [stdout]  --> vec/src/main.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn create_buffer(n: usize) -> Vec<u32> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode` (bin "leetcode") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `codewars` (bin "codewars") due to 1 previous error
[INFO] [stdout] warning: field `radius` is never read
[INFO] [stdout]  --> oop/src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Circle {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 9 |     radius: f64,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> oop/src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Rectangle {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 19 |     width: f64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     height: f64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `slots`, `slot_count`, and `item_count` are never read
[INFO] [stdout]   --> hashmap/src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct MyHashMap<Key: Hash + Eq, Value> {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 19 |     slots: Vec<Slot<Key, Value>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     slot_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 21 |     item_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyHashMap` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `radius` is never read
[INFO] [stdout]  --> oop/src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Circle {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 9 |     radius: f64,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> oop/src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Rectangle {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 19 |     width: f64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     height: f64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `slots`, `slot_count`, and `item_count` are never read
[INFO] [stdout]   --> hashmap/src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct MyHashMap<Key: Hash + Eq, Value> {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 19 |     slots: Vec<Slot<Key, Value>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     slot_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 21 |     item_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyHashMap` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]   --> codewars/src/bin/traits.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn remove_every_other(arr: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]  --> codewars/src/bin/traits.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Point<T> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point2` is never constructed
[INFO] [stdout]   --> codewars/src/bin/traits.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Point2<T>(T,T);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Option` is never used
[INFO] [stdout]   --> codewars/src/bin/traits.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | enum Option<T> {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_every_other` is never used
[INFO] [stdout]   --> codewars/src/bin/traits.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn remove_every_other(arr: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e6e0feacbb3e4186013ad9ec189ecb92f36ee28d89f42b8a0bbce6ff35341738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6e0feacbb3e4186013ad9ec189ecb92f36ee28d89f42b8a0bbce6ff35341738", kill_on_drop: false }`
[INFO] [stdout] e6e0feacbb3e4186013ad9ec189ecb92f36ee28d89f42b8a0bbce6ff35341738