[INFO] cloning repository https://github.com/sdegetaus/hackerrank-challenges-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sdegetaus/hackerrank-challenges-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdegetaus%2Fhackerrank-challenges-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdegetaus%2Fhackerrank-challenges-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 338b1d2c61fe7a23509b537e4051a82744861a97
[INFO] checking sdegetaus/hackerrank-challenges-rust against try#77ee4623672f6bca3e33ba60b6479de48d44b1f9 for pr-99217
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdegetaus%2Fhackerrank-challenges-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sdegetaus/hackerrank-challenges-rust on toolchain 77ee4623672f6bca3e33ba60b6479de48d44b1f9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+77ee4623672f6bca3e33ba60b6479de48d44b1f9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sdegetaus/hackerrank-challenges-rust
[INFO] finished tweaking git repo https://github.com/sdegetaus/hackerrank-challenges-rust
[INFO] tweaked toml for git repo https://github.com/sdegetaus/hackerrank-challenges-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/sdegetaus/hackerrank-challenges-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+77ee4623672f6bca3e33ba60b6479de48d44b1f9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+77ee4623672f6bca3e33ba60b6479de48d44b1f9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c01769d6ba046a23042df51fd9d12912053b928cc72df840914af1c49b5985a
[INFO] running `Command { std: "docker" "start" "-a" "4c01769d6ba046a23042df51fd9d12912053b928cc72df840914af1c49b5985a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c01769d6ba046a23042df51fd9d12912053b928cc72df840914af1c49b5985a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c01769d6ba046a23042df51fd9d12912053b928cc72df840914af1c49b5985a", kill_on_drop: false }`
[INFO] [stdout] 4c01769d6ba046a23042df51fd9d12912053b928cc72df840914af1c49b5985a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+77ee4623672f6bca3e33ba60b6479de48d44b1f9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f56215758342d00db643359c30ddf37d85a83e2315771baebf24a6487d1d412d
[INFO] running `Command { std: "docker" "start" "-a" "f56215758342d00db643359c30ddf37d85a83e2315771baebf24a6487d1d412d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking hackerrank-challenges-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `myCalculator` should have an upper camel case name
[INFO] [stdout]   --> src/challenges/thirty_days_of_code/day_17.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct myCalculator;
[INFO] [stdout]    |        ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `MyCalculator`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `myCalculator` should have an upper camel case name
[INFO] [stdout]   --> src/challenges/thirty_days_of_code/day_17.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct myCalculator;
[INFO] [stdout]    |        ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `MyCalculator`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `input` is never read
[INFO] [stdout]   --> src/challenges/thirty_days_of_code/day_17.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut input: Vec<u32> = vec![];
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `input` is never read
[INFO] [stdout]   --> src/challenges/thirty_days_of_code/day_17.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let mut input: Vec<u32> = vec![];
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "f56215758342d00db643359c30ddf37d85a83e2315771baebf24a6487d1d412d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f56215758342d00db643359c30ddf37d85a83e2315771baebf24a6487d1d412d", kill_on_drop: false }`
[INFO] [stdout] f56215758342d00db643359c30ddf37d85a83e2315771baebf24a6487d1d412d