[INFO] cloning repository https://github.com/fftcysstkm/rust_coder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fftcysstkm/rust_coder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffftcysstkm%2Frust_coder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffftcysstkm%2Frust_coder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f88ca89d88759a92391dfa451dd6d16c06735f59
[INFO] checking fftcysstkm/rust_coder against master#2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffftcysstkm%2Frust_coder" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fftcysstkm/rust_coder on toolchain 2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fftcysstkm/rust_coder
[INFO] finished tweaking git repo https://github.com/fftcysstkm/rust_coder
[INFO] tweaked toml for git repo https://github.com/fftcysstkm/rust_coder written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fftcysstkm/rust_coder 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" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0339cb9f81f9afc40ebed5f3cd99cf43c1be322e9d2eb49de6063457c90624b1
[INFO] running `Command { std: "docker" "start" "-a" "0339cb9f81f9afc40ebed5f3cd99cf43c1be322e9d2eb49de6063457c90624b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0339cb9f81f9afc40ebed5f3cd99cf43c1be322e9d2eb49de6063457c90624b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0339cb9f81f9afc40ebed5f3cd99cf43c1be322e9d2eb49de6063457c90624b1", kill_on_drop: false }`
[INFO] [stdout] 0339cb9f81f9afc40ebed5f3cd99cf43c1be322e9d2eb49de6063457c90624b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e91116eb10edb66e82da64b3ea3b40bd476536cb0c6ef42f61577a6bd7e3de8b
[INFO] running `Command { std: "docker" "start" "-a" "e91116eb10edb66e82da64b3ea3b40bd476536cb0c6ef42f61577a6bd7e3de8b", kill_on_drop: false }`
[INFO] [stderr]     Checking proconio v0.4.5
[INFO] [stderr]     Checking rust_coder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> src/recursive/sum.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sum(n: usize) -> usize {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> src/recursive/sum.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sum(n: usize) -> usize {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/recursive/sum.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/recursive/sum.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn main() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `C1213121` should have a snake case name
[INFO] [stdout]  --> src/recursive.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod C1213121;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `c1213121`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `C1213121` should have a snake case name
[INFO] [stdout]  --> src/recursive.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod C1213121;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `c1213121`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]  --> src/recursive/C1213121.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn rec(N: usize) -> String {
[INFO] [stdout]   |        ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]  --> src/recursive/C1213121.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn rec(N: usize) -> String {
[INFO] [stdout]   |        ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "e91116eb10edb66e82da64b3ea3b40bd476536cb0c6ef42f61577a6bd7e3de8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e91116eb10edb66e82da64b3ea3b40bd476536cb0c6ef42f61577a6bd7e3de8b", kill_on_drop: false }`
[INFO] [stdout] e91116eb10edb66e82da64b3ea3b40bd476536cb0c6ef42f61577a6bd7e3de8b