[INFO] updating cached repository https://github.com/jeffvandyke/char_count
[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] fa6f69407b91b6ca6a393ee229f902d8aa7b1b8d
[INFO] checking jeffvandyke/char_count against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffvandyke%2Fchar_count" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeffvandyke/char_count on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jeffvandyke/char_count
[INFO] finished tweaking git repo https://github.com/jeffvandyke/char_count
[INFO] tweaked toml for git repo https://github.com/jeffvandyke/char_count written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/jeffvandyke/char_count already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 2f0328a34b5ff1f29eda4259b938b8671557d04f848a649644422f1edb5068e3
[INFO] running `"docker" "start" "-a" "2f0328a34b5ff1f29eda4259b938b8671557d04f848a649644422f1edb5068e3"`
[INFO] [stderr]    Compiling ncurses v5.91.0
[INFO] [stderr]     Checking pancurses v0.15.0
[INFO] [stderr]     Checking char_count v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/main.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |             'a' ... 'z' => {
[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: unused variable: `wnd`
[INFO] [stderr]   --> src/main.rs:41:11
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn render(wnd: &curses::Window, text: &str, counts: &CharCounts)
[INFO] [stderr]    |           ^^^ help: consider prefixing with an underscore: `_wnd`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]   --> src/main.rs:41:33
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn render(wnd: &curses::Window, text: &str, counts: &CharCounts)
[INFO] [stderr]    |                                 ^^^^ help: consider prefixing with an underscore: `_text`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `counts`
[INFO] [stderr]   --> src/main.rs:41:45
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn render(wnd: &curses::Window, text: &str, counts: &CharCounts)
[INFO] [stderr]    |                                             ^^^^^^ help: consider prefixing with an underscore: `_counts`
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/main.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |             'a' ... 'z' => {
[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: unused variable: `wnd`
[INFO] [stderr]   --> src/main.rs:41:11
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn render(wnd: &curses::Window, text: &str, counts: &CharCounts)
[INFO] [stderr]    |           ^^^ help: consider prefixing with an underscore: `_wnd`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]   --> src/main.rs:41:33
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn render(wnd: &curses::Window, text: &str, counts: &CharCounts)
[INFO] [stderr]    |                                 ^^^^ help: consider prefixing with an underscore: `_text`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `counts`
[INFO] [stderr]   --> src/main.rs:41:45
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn render(wnd: &curses::Window, text: &str, counts: &CharCounts)
[INFO] [stderr]    |                                             ^^^^^^ help: consider prefixing with an underscore: `_counts`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.31s
[INFO] running `"docker" "inspect" "2f0328a34b5ff1f29eda4259b938b8671557d04f848a649644422f1edb5068e3"`
[INFO] running `"docker" "rm" "-f" "2f0328a34b5ff1f29eda4259b938b8671557d04f848a649644422f1edb5068e3"`
[INFO] [stdout] 2f0328a34b5ff1f29eda4259b938b8671557d04f848a649644422f1edb5068e3