[INFO] cloning repository https://github.com/thejainlabs/nth-Fibonacci-number
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thejainlabs/nth-Fibonacci-number" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthejainlabs%2Fnth-Fibonacci-number"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthejainlabs%2Fnth-Fibonacci-number'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b7b2c0d3e5c21ff2451b7f6bef12f2df36e3b970
[INFO] checking thejainlabs/nth-Fibonacci-number against master#e2223c94bf433fc38234d1303e88cbaf14755863 for pr-69548
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthejainlabs%2Fnth-Fibonacci-number" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thejainlabs/nth-Fibonacci-number on toolchain e2223c94bf433fc38234d1303e88cbaf14755863
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e2223c94bf433fc38234d1303e88cbaf14755863" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/thejainlabs/nth-Fibonacci-number
[INFO] finished tweaking git repo https://github.com/thejainlabs/nth-Fibonacci-number
[INFO] tweaked toml for git repo https://github.com/thejainlabs/nth-Fibonacci-number written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/thejainlabs/nth-Fibonacci-number already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e2223c94bf433fc38234d1303e88cbaf14755863" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e2223c94bf433fc38234d1303e88cbaf14755863" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 81e0be30ae4622f919ed676fce360c4f3807f165010104022c4873ed8e89629e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "81e0be30ae4622f919ed676fce360c4f3807f165010104022c4873ed8e89629e"`
[INFO] [stderr]     Checking nth_fibonacci v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: value assigned to `temp` is never read
[INFO] [stderr]   --> src/main.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let mut temp = 0;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:47:6
[INFO] [stderr]    |
[INFO] [stderr] 47 |     for i in 1..n+1 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `temp` is never read
[INFO] [stderr]   --> src/main.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let mut temp = 0;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:47:6
[INFO] [stderr]    |
[INFO] [stderr] 47 |     for i in 1..n+1 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "81e0be30ae4622f919ed676fce360c4f3807f165010104022c4873ed8e89629e"`
[INFO] running `"docker" "rm" "-f" "81e0be30ae4622f919ed676fce360c4f3807f165010104022c4873ed8e89629e"`
[INFO] [stdout] 81e0be30ae4622f919ed676fce360c4f3807f165010104022c4873ed8e89629e