[INFO] cloning repository https://github.com/azerowall/graphs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/azerowall/graphs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazerowall%2Fgraphs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazerowall%2Fgraphs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b13d519e2559f0f389db5e171fc16190087e940c
[INFO] checking azerowall/graphs against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazerowall%2Fgraphs" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/azerowall/graphs on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/azerowall/graphs
[INFO] finished tweaking git repo https://github.com/azerowall/graphs
[INFO] tweaked toml for git repo https://github.com/azerowall/graphs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/azerowall/graphs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 707e4b18e54bb590df197c02201ad680e3deb3c3619a8fb79ac6ad343af1666a
[INFO] running `Command { std: "docker" "start" "-a" "707e4b18e54bb590df197c02201ad680e3deb3c3619a8fb79ac6ad343af1666a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "707e4b18e54bb590df197c02201ad680e3deb3c3619a8fb79ac6ad343af1666a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "707e4b18e54bb590df197c02201ad680e3deb3c3619a8fb79ac6ad343af1666a", kill_on_drop: false }`
[INFO] [stdout] 707e4b18e54bb590df197c02201ad680e3deb3c3619a8fb79ac6ad343af1666a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95cbbf3b170ecb7d1ea62bc70aa584f9649aa4c03bd0142864d23f700651eb1b
[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" "95cbbf3b170ecb7d1ea62bc70aa584f9649aa4c03bd0142864d23f700651eb1b", kill_on_drop: false }`
[INFO] [stderr]     Checking graphs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `MaybeUninit`
[INFO] [stdout]  --> src/matrix.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::{MaybeUninit};
[INFO] [stdout]   |                ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MaybeUninit`
[INFO] [stdout]  --> src/matrix.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::{MaybeUninit};
[INFO] [stdout]   |                ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_vec`
[INFO] [stdout]   --> src/matrix.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn from_vec(vec: Vec<T>, n_rows: usize, n_cols: usize) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "95cbbf3b170ecb7d1ea62bc70aa584f9649aa4c03bd0142864d23f700651eb1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95cbbf3b170ecb7d1ea62bc70aa584f9649aa4c03bd0142864d23f700651eb1b", kill_on_drop: false }`
[INFO] [stdout] 95cbbf3b170ecb7d1ea62bc70aa584f9649aa4c03bd0142864d23f700651eb1b