[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#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdegetaus%2Fhackerrank-challenges-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[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-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sdegetaus/hackerrank-challenges-rust on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sdegetaus/hackerrank-challenges-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1bca32a945f30037d1736088f9357f16c6092db17ee0ef060efc2ea91b93d0d5
[INFO] running `Command { std: "docker" "start" "-a" "1bca32a945f30037d1736088f9357f16c6092db17ee0ef060efc2ea91b93d0d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bca32a945f30037d1736088f9357f16c6092db17ee0ef060efc2ea91b93d0d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bca32a945f30037d1736088f9357f16c6092db17ee0ef060efc2ea91b93d0d5", kill_on_drop: false }`
[INFO] [stdout] 1bca32a945f30037d1736088f9357f16c6092db17ee0ef060efc2ea91b93d0d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d12e6d18143c41f146bbe014de205b61d4ad774fd32c61f12b6c671eff65179
[INFO] running `Command { std: "docker" "start" "-a" "7d12e6d18143c41f146bbe014de205b61d4ad774fd32c61f12b6c671eff65179", kill_on_drop: false }`
[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)]` (part of `#[warn(nonstandard_style)]`) 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)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<String>, Infallible>
[INFO] [stdout]   --> src/challenges/thirty_days_of_code/day_28.rs:24:42
[INFO] [stdout]    |
[INFO] [stdout] 24 |           let contact_input: Vec<String> = String::from(functions::read_line().trim())
[INFO] [stdout]    |  __________________________________________^
[INFO] [stdout] 25 | |             .split(' ')
[INFO] [stdout] 26 | |             .into_iter()
[INFO] [stdout] 27 | |             .map(|s| s.parse::<String>())
[INFO] [stdout] 28 | |             .collect::<Result<Vec<String>, std::convert::Infallible>>()
[INFO] [stdout]    | |_______________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/challenges/thirty_days_of_code/day_28.rs:27:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |             .map(|s| s.parse::<String>())
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<String>, Infallible>
[INFO] [stdout]   --> src/challenges/thirty_days_of_code/day_28.rs:24:42
[INFO] [stdout]    |
[INFO] [stdout] 24 |           let contact_input: Vec<String> = String::from(functions::read_line().trim())
[INFO] [stdout]    |  __________________________________________^
[INFO] [stdout] 25 | |             .split(' ')
[INFO] [stdout] 26 | |             .into_iter()
[INFO] [stdout] 27 | |             .map(|s| s.parse::<String>())
[INFO] [stdout] 28 | |             .collect::<Result<Vec<String>, std::convert::Infallible>>()
[INFO] [stdout]    | |_______________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/challenges/thirty_days_of_code/day_28.rs:27:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |             .map(|s| s.parse::<String>())
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hackerrank-challenges-rust` (bin "hackerrank-challenges-rust") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hackerrank-challenges-rust` (bin "hackerrank-challenges-rust" test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "7d12e6d18143c41f146bbe014de205b61d4ad774fd32c61f12b6c671eff65179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d12e6d18143c41f146bbe014de205b61d4ad774fd32c61f12b6c671eff65179", kill_on_drop: false }`
[INFO] [stdout] 7d12e6d18143c41f146bbe014de205b61d4ad774fd32c61f12b6c671eff65179
