[INFO] cloning repository https://github.com/jeffvandyke/char_count
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeffvandyke/char_count" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffvandyke%2Fchar_count", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffvandyke%2Fchar_count'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa6f69407b91b6ca6a393ee229f902d8aa7b1b8d
[INFO] checking jeffvandyke/char_count against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffvandyke%2Fchar_count" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeffvandyke/char_count on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-10/source/Cargo.toml
[INFO] crate git repo https://github.com/jeffvandyke/char_count already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ncurses v5.91.0
[INFO] [stderr]   Downloaded pdcurses-sys v0.7.0
[INFO] [stderr]   Downloaded pancurses v0.15.0
[INFO] [stderr]   Downloaded cc v1.0.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f4154d1c3c7af9bd7bed23c59c5f7cfdf3ce950c14015f337918c608ed3d440
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4f4154d1c3c7af9bd7bed23c59c5f7cfdf3ce950c14015f337918c608ed3d440", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f4154d1c3c7af9bd7bed23c59c5f7cfdf3ce950c14015f337918c608ed3d440", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f4154d1c3c7af9bd7bed23c59c5f7cfdf3ce950c14015f337918c608ed3d440", kill_on_drop: false }`
[INFO] [stdout] 4f4154d1c3c7af9bd7bed23c59c5f7cfdf3ce950c14015f337918c608ed3d440
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] 22fd71f62de800d93ea452be152e2a5ca829c43ae7036040ad8fa85a5aa3375c
[INFO] running `Command { std: "docker" "start" "-a" "22fd71f62de800d93ea452be152e2a5ca829c43ae7036040ad8fa85a5aa3375c", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking log v0.3.9
[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] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/main.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |             'a' ... 'z' => {
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/main.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |             'a' ... 'z' => {
[INFO] [stdout]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wnd`
[INFO] [stdout]   --> src/main.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn render(wnd: &curses::Window, text: &str, counts: &CharCounts)
[INFO] [stdout]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_wnd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text`
[INFO] [stdout]   --> src/main.rs:41:33
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn render(wnd: &curses::Window, text: &str, counts: &CharCounts)
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `counts`
[INFO] [stdout]   --> src/main.rs:41:45
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn render(wnd: &curses::Window, text: &str, counts: &CharCounts)
[INFO] [stdout]    |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_counts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wnd`
[INFO] [stdout]   --> src/main.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn render(wnd: &curses::Window, text: &str, counts: &CharCounts)
[INFO] [stdout]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_wnd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text`
[INFO] [stdout]   --> src/main.rs:41:33
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn render(wnd: &curses::Window, text: &str, counts: &CharCounts)
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `counts`
[INFO] [stdout]   --> src/main.rs:41:45
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn render(wnd: &curses::Window, text: &str, counts: &CharCounts)
[INFO] [stdout]    |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_counts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.24s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "22fd71f62de800d93ea452be152e2a5ca829c43ae7036040ad8fa85a5aa3375c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22fd71f62de800d93ea452be152e2a5ca829c43ae7036040ad8fa85a5aa3375c", kill_on_drop: false }`
[INFO] [stdout] 22fd71f62de800d93ea452be152e2a5ca829c43ae7036040ad8fa85a5aa3375c