[INFO] cloning repository https://github.com/gt124/rust_calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gt124/rust_calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgt124%2Frust_calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgt124%2Frust_calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] deaeebb42f7ec295e934ed65b37925619a6db3dc
[INFO] checking gt124/rust_calculator against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgt124%2Frust_calculator" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gt124/rust_calculator on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gt124/rust_calculator
[INFO] finished tweaking git repo https://github.com/gt124/rust_calculator
[INFO] tweaked toml for git repo https://github.com/gt124/rust_calculator written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/gt124/rust_calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3ac3218c0397ee27d292d4537c005824a3854a985c384530f728f99e8590fe92
[INFO] running `Command { std: "docker" "start" "-a" "3ac3218c0397ee27d292d4537c005824a3854a985c384530f728f99e8590fe92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ac3218c0397ee27d292d4537c005824a3854a985c384530f728f99e8590fe92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ac3218c0397ee27d292d4537c005824a3854a985c384530f728f99e8590fe92", kill_on_drop: false }`
[INFO] [stdout] 3ac3218c0397ee27d292d4537c005824a3854a985c384530f728f99e8590fe92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4d8ae56891a67bd3e030b3d0b1d37a0e9e7b6860f8e51922b841d9a46c47f2d0
[INFO] running `Command { std: "docker" "start" "-a" "4d8ae56891a67bd3e030b3d0b1d37a0e9e7b6860f8e51922b841d9a46c47f2d0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust_calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/big_calc.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn new() -> CalcHugeStrings {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `testy`
[INFO] [stdout]   --> src/big_calc.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn testy(&self){
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/big_calc.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn add(&self, left: &'static str, right: &'static str) -> i32{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pad_to_same_length`
[INFO] [stdout]   --> src/big_calc.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn pad_to_same_length(&self, _left: &'static str, _right: &'static str ) -> (String, String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_two_and_carry`
[INFO] [stdout]   --> src/big_calc.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn add_two_and_carry(&self, _left: char, _right: char, _carry: bool) -> (bool, u32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `Command { std: "docker" "inspect" "4d8ae56891a67bd3e030b3d0b1d37a0e9e7b6860f8e51922b841d9a46c47f2d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d8ae56891a67bd3e030b3d0b1d37a0e9e7b6860f8e51922b841d9a46c47f2d0", kill_on_drop: false }`
[INFO] [stdout] 4d8ae56891a67bd3e030b3d0b1d37a0e9e7b6860f8e51922b841d9a46c47f2d0