[INFO] cloning repository https://github.com/uclanSameer/rust-utils
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uclanSameer/rust-utils" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FuclanSameer%2Frust-utils", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FuclanSameer%2Frust-utils'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c49cdf724f0101893b08289da09c2cefee535fc
[INFO] checking uclanSameer/rust-utils against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FuclanSameer%2Frust-utils" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/uclanSameer/rust-utils
[INFO] finished tweaking git repo https://github.com/uclanSameer/rust-utils
[INFO] tweaked toml for git repo https://github.com/uclanSameer/rust-utils written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/uclanSameer/rust-utils on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/uclanSameer/rust-utils 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-test v0.4.3
[INFO] [stderr]   Downloaded h2 v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ada0e5fb04e2eb5fc47ddea0f6b3a07a079c0d3626b6727f03578b634573e7c
[INFO] running `Command { std: "docker" "start" "-a" "8ada0e5fb04e2eb5fc47ddea0f6b3a07a079c0d3626b6727f03578b634573e7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ada0e5fb04e2eb5fc47ddea0f6b3a07a079c0d3626b6727f03578b634573e7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ada0e5fb04e2eb5fc47ddea0f6b3a07a079c0d3626b6727f03578b634573e7c", kill_on_drop: false }`
[INFO] [stdout] 8ada0e5fb04e2eb5fc47ddea0f6b3a07a079c0d3626b6727f03578b634573e7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8abc3d8c503712cdecdb99e40a20d7cadd9beeeca76d3737b84115d85a3f4acf
[INFO] running `Command { std: "docker" "start" "-a" "8abc3d8c503712cdecdb99e40a20d7cadd9beeeca76d3737b84115d85a3f4acf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.74
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling crossbeam-utils v0.8.17
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking indexmap v2.1.0
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[INFO] [stderr]     Checking parking_lot_core v0.9.9
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[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling openssl v0.10.62
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking parking_lot v0.12.1
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[INFO] [stderr]    Compiling tokio-macros v2.2.0
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[INFO] [stdout] warning: unused import: `IntoParallelRefMutIterator`
[INFO] [stdout]   --> src/rayon_tests.rs:1:44
[INFO] [stdout]    |
[INFO] [stdout]  1 | use rayon::iter::{IntoParallelRefIterator, IntoParallelRefMutIterator, ParallelIterator};
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/main.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub mod rayon_tests;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoParallelRefMutIterator`
[INFO] [stdout]  --> src/rayon_tests.rs:1:44
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rayon::iter::{IntoParallelRefIterator, IntoParallelRefMutIterator, ParallelIterator};
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/rayon_tests.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut v = [10 as i32; 100];
[INFO] [stdout]   |         ----^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/rayon_tests.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut v = [10 as i32; 100];
[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/rayon_tests.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut v = [10 as i32; 100];
[INFO] [stdout]   |         ----^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/rayon_tests.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut v = [10 as i32; 100];
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.29s
[INFO] running `Command { std: "docker" "inspect" "8abc3d8c503712cdecdb99e40a20d7cadd9beeeca76d3737b84115d85a3f4acf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8abc3d8c503712cdecdb99e40a20d7cadd9beeeca76d3737b84115d85a3f4acf", kill_on_drop: false }`
[INFO] [stdout] 8abc3d8c503712cdecdb99e40a20d7cadd9beeeca76d3737b84115d85a3f4acf
