[INFO] cloning repository https://github.com/Aliozzaim/Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Aliozzaim/Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAliozzaim%2FRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAliozzaim%2FRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe1ff16a664a396c02049fd793dce7883889298b
[INFO] checking Aliozzaim/Rust against try#44f3504e96c944ae54fc72b5f5008f53f7eda001 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAliozzaim%2FRust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Aliozzaim/Rust on toolchain 44f3504e96c944ae54fc72b5f5008f53f7eda001
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Aliozzaim/Rust
[INFO] finished tweaking git repo https://github.com/Aliozzaim/Rust
[INFO] tweaked toml for git repo https://github.com/Aliozzaim/Rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Aliozzaim/Rust 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" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3eb8120eacff6b38c259a94462330c243b2713f396272e9c50b08ad884dc59f0
[INFO] running `Command { std: "docker" "start" "-a" "3eb8120eacff6b38c259a94462330c243b2713f396272e9c50b08ad884dc59f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3eb8120eacff6b38c259a94462330c243b2713f396272e9c50b08ad884dc59f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb8120eacff6b38c259a94462330c243b2713f396272e9c50b08ad884dc59f0", kill_on_drop: false }`
[INFO] [stdout] 3eb8120eacff6b38c259a94462330c243b2713f396272e9c50b08ad884dc59f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d832441c56b4890a03877acabac7f00903112a45fb3942cb4e9c49e67d198fe
[INFO] running `Command { std: "docker" "start" "-a" "6d832441c56b4890a03877acabac7f00903112a45fb3942cb4e9c49e67d198fe", kill_on_drop: false }`
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `hash`
[INFO] [stdout]  --> src/my_hashmap.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     hash,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item01`
[INFO] [stdout]  --> src/iterators.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let item01: Option<&&str> = my_vec_iter.next();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_item01`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash`
[INFO] [stdout]  --> src/my_hashmap.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     hash,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/iterators.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut my_vec: Vec<&str> = vec!["ali", "sule", "downplay", "disguise"];
[INFO] [stdout]   |         ----^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/iterators.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut fruits: Vec<&str> = vec!["apple", "banana", "cherry"];
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/iterators.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut vegetables: Vec<&str> = vec!["carrot", "beetroot", "asparagus"];
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item01`
[INFO] [stdout]  --> src/iterators.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let item01: Option<&&str> = my_vec_iter.next();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_item01`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/iterators.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut my_vec: Vec<&str> = vec!["ali", "sule", "downplay", "disguise"];
[INFO] [stdout]   |         ----^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/iterators.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut fruits: Vec<&str> = vec!["apple", "banana", "cherry"];
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/iterators.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut vegetables: Vec<&str> = vec!["carrot", "beetroot", "asparagus"];
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "6d832441c56b4890a03877acabac7f00903112a45fb3942cb4e9c49e67d198fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d832441c56b4890a03877acabac7f00903112a45fb3942cb4e9c49e67d198fe", kill_on_drop: false }`
[INFO] [stdout] 6d832441c56b4890a03877acabac7f00903112a45fb3942cb4e9c49e67d198fe
