[INFO] updating cached repository https://github.com/aksharpatel47/algorithms-and-data-structures
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] [stderr] From https://github.com/aksharpatel47/algorithms-and-data-structures
[INFO] [stderr]  - [deleted]         (none)     -> dependabot/npm_and_yarn/lodash-4.17.15
[INFO] [stderr]  * [new branch]      dependabot/npm_and_yarn/lodash-4.17.19 -> dependabot/npm_and_yarn/lodash-4.17.19
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a0384c8ab0d38a88e2ea5c08fe9d324bc1cc70e
[INFO] checking aksharpatel47/algorithms-and-data-structures against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faksharpatel47%2Falgorithms-and-data-structures" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aksharpatel47/algorithms-and-data-structures on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aksharpatel47/algorithms-and-data-structures
[INFO] finished tweaking git repo https://github.com/aksharpatel47/algorithms-and-data-structures
[INFO] tweaked toml for git repo https://github.com/aksharpatel47/algorithms-and-data-structures written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/aksharpatel47/algorithms-and-data-structures already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb5f91ab0031633141811386993e6952aec73076d8aba7fbd97c7faaaa778d0b
[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" "fb5f91ab0031633141811386993e6952aec73076d8aba7fbd97c7faaaa778d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb5f91ab0031633141811386993e6952aec73076d8aba7fbd97c7faaaa778d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb5f91ab0031633141811386993e6952aec73076d8aba7fbd97c7faaaa778d0b", kill_on_drop: false }`
[INFO] [stdout] fb5f91ab0031633141811386993e6952aec73076d8aba7fbd97c7faaaa778d0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] f6a3d71fd44fc9a4a27b0909f0d390dadbc08e9afb6c829e9ae933b364728a70
[INFO] running `Command { std: "docker" "start" "-a" "f6a3d71fd44fc9a4a27b0909f0d390dadbc08e9afb6c829e9ae933b364728a70", kill_on_drop: false }`
[INFO] [stderr]     Checking algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/sorting/insertion_sort/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut key = values[i];
[INFO] [stdout]   |         ----^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/sorting/insertion_sort/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut key = values[i];
[INFO] [stdout]   |         ----^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "f6a3d71fd44fc9a4a27b0909f0d390dadbc08e9afb6c829e9ae933b364728a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a3d71fd44fc9a4a27b0909f0d390dadbc08e9afb6c829e9ae933b364728a70", kill_on_drop: false }`
[INFO] [stdout] f6a3d71fd44fc9a4a27b0909f0d390dadbc08e9afb6c829e9ae933b364728a70