[INFO] updating cached repository https://github.com/AlexABallWebDev/rust_playground
[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] 1784c69f7bb2a7c150a86ea21e63bc1b73cb90dc
[INFO] checking AlexABallWebDev/rust_playground against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexABallWebDev%2Frust_playground" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlexABallWebDev/rust_playground on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/AlexABallWebDev/rust_playground
[INFO] finished tweaking git repo https://github.com/AlexABallWebDev/rust_playground
[INFO] tweaked toml for git repo https://github.com/AlexABallWebDev/rust_playground written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/AlexABallWebDev/rust_playground already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 364ea4f39c4b5797bea98a3075f9dfbae316d9a771272be56339a7f3b45d8db1
[INFO] running `"docker" "start" "-a" "364ea4f39c4b5797bea98a3075f9dfbae316d9a771272be56339a7f3b45d8db1"`
[INFO] [stderr]     Checking rust_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused label
[INFO] [stderr]    --> src/intro_1.rs:320:13
[INFO] [stderr]     |
[INFO] [stderr] 320 |             'c: loop {
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/intro_1.rs:393:12
[INFO] [stderr]     |
[INFO] [stderr] 393 |         13 ... 19 => println!("This is a \"teen\"", ),
[INFO] [stderr]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/intro_1.rs:424:15
[INFO] [stderr]     |
[INFO] [stderr] 424 |         n @ 1 ... 12 => println!("n is between 1-12: {}", n),
[INFO] [stderr]     |               ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/intro_1.rs:425:16
[INFO] [stderr]     |
[INFO] [stderr] 425 |         n @ 13 ... 19 => println!("n is between 13-19: {}", n),
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/intro_1.rs:433:15
[INFO] [stderr]     |
[INFO] [stderr] 433 |         n @ 1 ... 12 => n + 1,
[INFO] [stderr]     |               ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/intro_1.rs:434:16
[INFO] [stderr]     |
[INFO] [stderr] 434 |         n @ 13 ... 19 => n + 2,
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused label
[INFO] [stderr]    --> src/intro_1.rs:320:13
[INFO] [stderr]     |
[INFO] [stderr] 320 |             'c: loop {
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/intro_1.rs:393:12
[INFO] [stderr]     |
[INFO] [stderr] 393 |         13 ... 19 => println!("This is a \"teen\"", ),
[INFO] [stderr]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/intro_1.rs:424:15
[INFO] [stderr]     |
[INFO] [stderr] 424 |         n @ 1 ... 12 => println!("n is between 1-12: {}", n),
[INFO] [stderr]     |               ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/intro_1.rs:425:16
[INFO] [stderr]     |
[INFO] [stderr] 425 |         n @ 13 ... 19 => println!("n is between 13-19: {}", n),
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/intro_1.rs:433:15
[INFO] [stderr]     |
[INFO] [stderr] 433 |         n @ 1 ... 12 => n + 1,
[INFO] [stderr]     |               ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/intro_1.rs:434:16
[INFO] [stderr]     |
[INFO] [stderr] 434 |         n @ 13 ... 19 => n + 2,
[INFO] [stderr]     |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "364ea4f39c4b5797bea98a3075f9dfbae316d9a771272be56339a7f3b45d8db1"`
[INFO] running `"docker" "rm" "-f" "364ea4f39c4b5797bea98a3075f9dfbae316d9a771272be56339a7f3b45d8db1"`
[INFO] [stdout] 364ea4f39c4b5797bea98a3075f9dfbae316d9a771272be56339a7f3b45d8db1