[INFO] cloning repository https://github.com/Bear-V/bear_codewars
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bear-V/bear_codewars" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBear-V%2Fbear_codewars", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBear-V%2Fbear_codewars'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 368e54fc9331019b52b067b8680ce97eabaf8698
[INFO] checking Bear-V/bear_codewars against master#04ff05c9c0cfbca33115c5f1b8bb20a66a54b799 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBear-V%2Fbear_codewars" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Bear-V/bear_codewars
[INFO] finished tweaking git repo https://github.com/Bear-V/bear_codewars
[INFO] tweaked toml for git repo https://github.com/Bear-V/bear_codewars written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Bear-V/bear_codewars on toolchain 04ff05c9c0cfbca33115c5f1b8bb20a66a54b799
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Bear-V/bear_codewars 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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8fab093ba1b4c03e8ed63784bc21b0ec0523dc0c3bc804c89af14591bec7fbe
[INFO] running `Command { std: "docker" "start" "-a" "a8fab093ba1b4c03e8ed63784bc21b0ec0523dc0c3bc804c89af14591bec7fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8fab093ba1b4c03e8ed63784bc21b0ec0523dc0c3bc804c89af14591bec7fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8fab093ba1b4c03e8ed63784bc21b0ec0523dc0c3bc804c89af14591bec7fbe", kill_on_drop: false }`
[INFO] [stdout] a8fab093ba1b4c03e8ed63784bc21b0ec0523dc0c3bc804c89af14591bec7fbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51fc4c0a44d6f82e7e1a3ba6fd384eb6e47a120ad08f2501c8fc7d3e72db268f
[INFO] running `Command { std: "docker" "start" "-a" "51fc4c0a44d6f82e7e1a3ba6fd384eb6e47a120ad08f2501c8fc7d3e72db268f", kill_on_drop: false }`
[INFO] [stderr]     Checking code_war_for_me v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: invalid character '!' in crate name: `number_of_trailing_zeros_of_n!`
[INFO] [stdout]   |
[INFO] [stdout]   = help: you can either pass `--crate-name` on the command line or add `#![crate_name = "…"]` to set the crate name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `code_war_for_me` (test "number_of_trailing_zeros_of_n!") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `std::string::FromUtf8Error`
[INFO] [stdout]  --> tests/replace_with_alphabet_position.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::string::FromUtf8Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> tests/replace_with_alphabet_position.rs:12:59
[INFO] [stdout]    |
[INFO] [stdout] 12 |     lower_text.into_bytes().iter().enumerate().for_each(|(i, x)| {
[INFO] [stdout]    |                                                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_num` is never used
[INFO] [stdout]   --> tests/tribonacci_sequence.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn new_num(arr: &mut Vec<f64>, n: usize) -> &mut Vec<f64> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "51fc4c0a44d6f82e7e1a3ba6fd384eb6e47a120ad08f2501c8fc7d3e72db268f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51fc4c0a44d6f82e7e1a3ba6fd384eb6e47a120ad08f2501c8fc7d3e72db268f", kill_on_drop: false }`
[INFO] [stdout] 51fc4c0a44d6f82e7e1a3ba6fd384eb6e47a120ad08f2501c8fc7d3e72db268f
