[INFO] updating cached repository https://github.com/CircuitCoder/denigma
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] ca49254e524e111e49e3c07c4bdfd7c0de81515e
[INFO] checking CircuitCoder/denigma against master#9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7 for pr-64564
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FCircuitCoder%2Fdenigma" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CircuitCoder/denigma on toolchain 9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/CircuitCoder/denigma
[INFO] finished tweaking git repo https://github.com/CircuitCoder/denigma
[INFO] tweaked toml for git repo https://github.com/CircuitCoder/denigma written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/CircuitCoder/denigma already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1ca2bcdde6bc65c907a184557246e86e1d1b0d072c050b1cb69b71518ab773d1
[INFO] running `"docker" "start" "-a" "1ca2bcdde6bc65c907a184557246e86e1d1b0d072c050b1cb69b71518ab773d1"`
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking denigma v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never used: `spigots`
[INFO] [stderr]   --> src/main.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     spigots: Option<usize>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:195:5
[INFO] [stderr]     |
[INFO] [stderr] 195 | /     thread::spawn(move || {
[INFO] [stderr] 196 | |         let mut counter = 0;
[INFO] [stderr] 197 | |         let mut milestone = 1000;
[INFO] [stderr] 198 | |         for a in 0..5 {
[INFO] [stderr] ...   |
[INFO] [stderr] 231 | |         println!("Finished: {}", counter);
[INFO] [stderr] 232 | |     }).join();
[INFO] [stderr]     | |______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `spigots`
[INFO] [stderr]   --> src/main.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     spigots: Option<usize>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:195:5
[INFO] [stderr]     |
[INFO] [stderr] 195 | /     thread::spawn(move || {
[INFO] [stderr] 196 | |         let mut counter = 0;
[INFO] [stderr] 197 | |         let mut milestone = 1000;
[INFO] [stderr] 198 | |         for a in 0..5 {
[INFO] [stderr] ...   |
[INFO] [stderr] 231 | |         println!("Finished: {}", counter);
[INFO] [stderr] 232 | |     }).join();
[INFO] [stderr]     | |______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.15s
[INFO] running `"docker" "inspect" "1ca2bcdde6bc65c907a184557246e86e1d1b0d072c050b1cb69b71518ab773d1"`
[INFO] running `"docker" "rm" "-f" "1ca2bcdde6bc65c907a184557246e86e1d1b0d072c050b1cb69b71518ab773d1"`
[INFO] [stdout] 1ca2bcdde6bc65c907a184557246e86e1d1b0d072c050b1cb69b71518ab773d1