[INFO] updating cached repository https://github.com/cangSDARM/rust-scratch
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1964bb4bfc4e7595562690621a19aea018729296
[INFO] checking cangSDARM/rust-scratch against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcangSDARM%2Frust-scratch" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cangSDARM/rust-scratch on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cangSDARM/rust-scratch
[INFO] finished tweaking git repo https://github.com/cangSDARM/rust-scratch
[INFO] tweaked toml for git repo https://github.com/cangSDARM/rust-scratch written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/cangSDARM/rust-scratch already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e0234b398c2d8ff5dd19e010385fa3ce6461f1abea7ee8f9bfcfd0396a0a7b7d
[INFO] running `"docker" "start" "-a" "e0234b398c2d8ff5dd19e010385fa3ce6461f1abea7ee8f9bfcfd0396a0a7b7d"`
[INFO] [stderr]     Checking rust-scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/process_control.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 |   let i = loop {
[INFO] [stderr]    |       ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ifing`
[INFO] [stderr]  --> src/process_control.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn ifing(num: u8) {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `looping`
[INFO] [stderr]   --> src/process_control.rs:19:4
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn looping() {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `whileing`
[INFO] [stderr]   --> src/process_control.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn whileing() {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `foring`
[INFO] [stderr]   --> src/process_control.rs:33:4
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn foring() {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `matching`
[INFO] [stderr]   --> src/process_control.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn matching(num: i32) {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MAX_SIZE`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     const MAX_SIZE: u32 = 100_0000;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/process_control.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 |   let i = loop {
[INFO] [stderr]    |       ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ifing`
[INFO] [stderr]  --> src/process_control.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn ifing(num: u8) {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `looping`
[INFO] [stderr]   --> src/process_control.rs:19:4
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn looping() {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `whileing`
[INFO] [stderr]   --> src/process_control.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn whileing() {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `foring`
[INFO] [stderr]   --> src/process_control.rs:33:4
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn foring() {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `matching`
[INFO] [stderr]   --> src/process_control.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn matching(num: i32) {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `"docker" "inspect" "e0234b398c2d8ff5dd19e010385fa3ce6461f1abea7ee8f9bfcfd0396a0a7b7d"`
[INFO] running `"docker" "rm" "-f" "e0234b398c2d8ff5dd19e010385fa3ce6461f1abea7ee8f9bfcfd0396a0a7b7d"`
[INFO] [stdout] e0234b398c2d8ff5dd19e010385fa3ce6461f1abea7ee8f9bfcfd0396a0a7b7d