[INFO] cloning repository https://github.com/matriv/rust_project_euler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matriv/rust_project_euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatriv%2Frust_project_euler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatriv%2Frust_project_euler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 286f3baa32b2675dbaee311a16aca4eb4d67bc39
[INFO] checking matriv/rust_project_euler against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatriv%2Frust_project_euler" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matriv/rust_project_euler on toolchain 2e6fc425411280c658d852813de01c5157255088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matriv/rust_project_euler
[INFO] finished tweaking git repo https://github.com/matriv/rust_project_euler
[INFO] tweaked toml for git repo https://github.com/matriv/rust_project_euler written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/matriv/rust_project_euler 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" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded round v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bbee2344293faec6209fb978b87a2e6141a7eab468d42e8c1c5a064b9c61b53
[INFO] running `Command { std: "docker" "start" "-a" "4bbee2344293faec6209fb978b87a2e6141a7eab468d42e8c1c5a064b9c61b53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bbee2344293faec6209fb978b87a2e6141a7eab468d42e8c1c5a064b9c61b53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bbee2344293faec6209fb978b87a2e6141a7eab468d42e8c1c5a064b9c61b53", kill_on_drop: false }`
[INFO] [stdout] 4bbee2344293faec6209fb978b87a2e6141a7eab468d42e8c1c5a064b9c61b53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1386ee27c719fba5fc499a20cb74eee50f3b31102c00e23d9db0e03f738d423
[INFO] running `Command { std: "docker" "start" "-a" "b1386ee27c719fba5fc499a20cb74eee50f3b31102c00e23d9db0e03f738d423", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling substring v1.4.5
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking primes v0.3.0
[INFO] [stderr]     Checking round v0.1.2
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking pretty_assertions v1.3.0
[INFO] [stderr]     Checking rust_project_euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Euler` is never constructed
[INFO] [stdout]  --> src/problem_003.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     struct Euler;
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `exec` is never used
[INFO] [stdout]  --> src/problem_003.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     impl Euler {
[INFO] [stdout]   |     ---------- associated function in this implementation
[INFO] [stdout] 5 |         fn exec() -> u64 {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Euler` is never constructed
[INFO] [stdout]  --> src/problem_016.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub struct Euler;
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `exec` is never used
[INFO] [stdout]  --> src/problem_016.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     impl Euler {
[INFO] [stdout]   |     ---------- associated function in this implementation
[INFO] [stdout] 7 |         // ~ 350μs
[INFO] [stdout] 8 |         fn exec(base: u32, exp: u32) -> u32 {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.83s
[INFO] running `Command { std: "docker" "inspect" "b1386ee27c719fba5fc499a20cb74eee50f3b31102c00e23d9db0e03f738d423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1386ee27c719fba5fc499a20cb74eee50f3b31102c00e23d9db0e03f738d423", kill_on_drop: false }`
[INFO] [stdout] b1386ee27c719fba5fc499a20cb74eee50f3b31102c00e23d9db0e03f738d423