[INFO] cloning repository https://github.com/asuradev99/rust-algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/asuradev99/rust-algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasuradev99%2Frust-algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasuradev99%2Frust-algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33974443a228a65eb585f4ac4659c7730abdd301
[INFO] checking asuradev99/rust-algorithms against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasuradev99%2Frust-algorithms" "/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/asuradev99/rust-algorithms on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/asuradev99/rust-algorithms
[INFO] finished tweaking git repo https://github.com/asuradev99/rust-algorithms
[INFO] tweaked toml for git repo https://github.com/asuradev99/rust-algorithms written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/asuradev99/rust-algorithms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7dc142127151525cf56585f69a56fa00baee80edabfc4c217d80fbb0b48dbdf3
[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" "7dc142127151525cf56585f69a56fa00baee80edabfc4c217d80fbb0b48dbdf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dc142127151525cf56585f69a56fa00baee80edabfc4c217d80fbb0b48dbdf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dc142127151525cf56585f69a56fa00baee80edabfc4c217d80fbb0b48dbdf3", kill_on_drop: false }`
[INFO] [stdout] 7dc142127151525cf56585f69a56fa00baee80edabfc4c217d80fbb0b48dbdf3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d3bc3271572930781a7500fdea750a8f57a5fc32a304fbd7740aa4564e00cac
[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" "1d3bc3271572930781a7500fdea750a8f57a5fc32a304fbd7740aa4564e00cac", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling cast v0.2.6
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.2
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> benches/mul_test.rs:19:88
[INFO] [stdout]    |
[INFO] [stdout] 19 |         group.bench_with_input(BenchmarkId::new("Standard Multiplication", i), &i, |e, i| e.iter(|| mul::mult(a.clone(), b.clone())));
[INFO] [stdout]    |                                                                                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> benches/mul_test.rs:23:87
[INFO] [stdout]    |
[INFO] [stdout] 23 |         group.bench_with_input(BenchmarkId::new("Fast Fourier Transform", i), &i, |e, i| e.iter(|| fft::fft_poly(a.clone(), b.clone())));
[INFO] [stdout]    |                                                                                       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.35s
[INFO] running `Command { std: "docker" "inspect" "1d3bc3271572930781a7500fdea750a8f57a5fc32a304fbd7740aa4564e00cac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d3bc3271572930781a7500fdea750a8f57a5fc32a304fbd7740aa4564e00cac", kill_on_drop: false }`
[INFO] [stdout] 1d3bc3271572930781a7500fdea750a8f57a5fc32a304fbd7740aa4564e00cac