[INFO] cloning repository https://github.com/abizzaar/rust-lockfree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/abizzaar/rust-lockfree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabizzaar%2Frust-lockfree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabizzaar%2Frust-lockfree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5738d7028d31f8d5625cec46839a19966cb1983f
[INFO] checking abizzaar/rust-lockfree against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabizzaar%2Frust-lockfree" "/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/abizzaar/rust-lockfree on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/abizzaar/rust-lockfree
[INFO] finished tweaking git repo https://github.com/abizzaar/rust-lockfree
[INFO] tweaked toml for git repo https://github.com/abizzaar/rust-lockfree written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/abizzaar/rust-lockfree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b773b640c08e79d18cbb4721104f054298909bcc7a405e7fceb1c296a8b2d977
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b773b640c08e79d18cbb4721104f054298909bcc7a405e7fceb1c296a8b2d977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b773b640c08e79d18cbb4721104f054298909bcc7a405e7fceb1c296a8b2d977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b773b640c08e79d18cbb4721104f054298909bcc7a405e7fceb1c296a8b2d977", kill_on_drop: false }`
[INFO] [stdout] b773b640c08e79d18cbb4721104f054298909bcc7a405e7fceb1c296a8b2d977
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7158d05a7bc5a6a9a0e199674cfcd7e2bd8d65e307c161a4b9261d258b896249
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7158d05a7bc5a6a9a0e199674cfcd7e2bd8d65e307c161a4b9261d258b896249", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling proc-macro-hack v0.5.7
[INFO] [stderr]    Compiling arr_macro_impl v0.1.2
[INFO] [stderr]     Checking arr_macro v0.1.2
[INFO] [stderr]     Checking final-abizar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `random`
[INFO] [stdout]   --> src/main.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |     use rand::{random, Rng};
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Entry`
[INFO] [stdout]  --> src/main.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Entry {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `HashTable`
[INFO] [stdout]   --> src/main.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct HashTable {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/main.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_item`
[INFO] [stdout]   --> src/main.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn set_item(&mut self, key: i32, val: i32) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_item`
[INFO] [stdout]   --> src/main.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn get_item(&self, key: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.09s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7158d05a7bc5a6a9a0e199674cfcd7e2bd8d65e307c161a4b9261d258b896249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7158d05a7bc5a6a9a0e199674cfcd7e2bd8d65e307c161a4b9261d258b896249", kill_on_drop: false }`
[INFO] [stdout] 7158d05a7bc5a6a9a0e199674cfcd7e2bd8d65e307c161a4b9261d258b896249