[INFO] updating cached repository jeffvandyke/char_count
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jeffvandyke/char_count
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jeffvandyke/char_count" "work/ex/beta-1.37-6/sources/1.36.0/gh/jeffvandyke/char_count"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/jeffvandyke/char_count'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jeffvandyke/char_count" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/jeffvandyke/char_count"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/jeffvandyke/char_count'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fa6f69407b91b6ca6a393ee229f902d8aa7b1b8d
[INFO] sha for GitHub repo jeffvandyke/char_count: fa6f69407b91b6ca6a393ee229f902d8aa7b1b8d
[INFO] validating manifest of jeffvandyke/char_count on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jeffvandyke/char_count on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jeffvandyke/char_count
[INFO] finished frobbing jeffvandyke/char_count
[INFO] frobbed toml for jeffvandyke/char_count written to work/ex/beta-1.37-6/sources/1.36.0/gh/jeffvandyke/char_count/Cargo.toml
[INFO] started frobbing jeffvandyke/char_count
[INFO] finished frobbing jeffvandyke/char_count
[INFO] frobbed toml for jeffvandyke/char_count written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/jeffvandyke/char_count/Cargo.toml
[INFO] crate jeffvandyke/char_count already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing jeffvandyke/char_count against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/jeffvandyke/char_count:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] da0d538b72298463146b4a20f9b73a4bde44c78f3d4b61b863ff33cb6c2b82be
[INFO] running `"docker" "start" "-a" "da0d538b72298463146b4a20f9b73a4bde44c78f3d4b61b863ff33cb6c2b82be"`
[INFO] [stderr]    Compiling ncurses v5.91.0
[INFO] [stderr]    Compiling pancurses v0.15.0
[INFO] [stderr]    Compiling char_count v0.1.0 (/opt/crater/workdir)
[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 2.84s
[INFO] running `"docker" "inspect" "da0d538b72298463146b4a20f9b73a4bde44c78f3d4b61b863ff33cb6c2b82be"`
[INFO] running `"docker" "rm" "-f" "da0d538b72298463146b4a20f9b73a4bde44c78f3d4b61b863ff33cb6c2b82be"`
[INFO] [stdout] da0d538b72298463146b4a20f9b73a4bde44c78f3d4b61b863ff33cb6c2b82be
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/jeffvandyke/char_count:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b6bc74050897d4b832504154cd7f8c79919f70ae20edbd9adda32591e934863e
[INFO] running `"docker" "start" "-a" "b6bc74050897d4b832504154cd7f8c79919f70ae20edbd9adda32591e934863e"`
[INFO] [stderr]    Compiling char_count v0.1.0 (/opt/crater/workdir)
[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 0.39s
[INFO] running `"docker" "inspect" "b6bc74050897d4b832504154cd7f8c79919f70ae20edbd9adda32591e934863e"`
[INFO] running `"docker" "rm" "-f" "b6bc74050897d4b832504154cd7f8c79919f70ae20edbd9adda32591e934863e"`
[INFO] [stdout] b6bc74050897d4b832504154cd7f8c79919f70ae20edbd9adda32591e934863e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/jeffvandyke/char_count:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] b410ec31d570b95855f7fa331a04f463d8ebdc90387aa25fba5d95c29fd6c916
[INFO] running `"docker" "start" "-a" "b410ec31d570b95855f7fa331a04f463d8ebdc90387aa25fba5d95c29fd6c916"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/char_count-80c583f3223e3a18
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b410ec31d570b95855f7fa331a04f463d8ebdc90387aa25fba5d95c29fd6c916"`
[INFO] running `"docker" "rm" "-f" "b410ec31d570b95855f7fa331a04f463d8ebdc90387aa25fba5d95c29fd6c916"`
[INFO] [stdout] b410ec31d570b95855f7fa331a04f463d8ebdc90387aa25fba5d95c29fd6c916