[INFO] updating cached repository Canop/btree
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Canop/btree
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Canop/btree" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/Canop/btree"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/Canop/btree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Canop/btree" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/Canop/btree"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/Canop/btree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 00fd417fd51ccf767650b3495f4435db2a6558e2
[INFO] sha for GitHub repo Canop/btree: 00fd417fd51ccf767650b3495f4435db2a6558e2
[INFO] validating manifest of Canop/btree on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Canop/btree on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Canop/btree
[INFO] finished frobbing Canop/btree
[INFO] frobbed toml for Canop/btree written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/Canop/btree/Cargo.toml
[INFO] started frobbing Canop/btree
[INFO] finished frobbing Canop/btree
[INFO] frobbed toml for Canop/btree written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/Canop/btree/Cargo.toml
[INFO] crate Canop/btree already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Canop/btree against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-1/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/Canop/btree:/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=forbid" "-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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1cd5273dced97488e3b1052e5d8c1d22072e47f5f72475b4ff0ee1f4eb6e34d2
[INFO] running `"docker" "start" "-a" "1cd5273dced97488e3b1052e5d8c1d22072e47f5f72475b4ff0ee1f4eb6e34d2"`
[INFO] [stderr]    Compiling fs_extra v1.1.0
[INFO] [stderr]     Checking custom_error v1.4.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stderr]     Checking crossbeam v0.7.1
[INFO] [stderr]    Compiling jemalloc-sys v0.1.8
[INFO] [stderr]     Checking jemallocator v0.1.9
[INFO] [stderr]     Checking broot v0.6.3 (/opt/crater/workdir)
[INFO] [stderr] warning: static variable `bold_regex` should have an upper case name
[INFO] [stderr]   --> src/screen_text.rs:49:24
[INFO] [stderr]    |
[INFO] [stderr] 49 |             static ref bold_regex: Regex = Regex::new(r"\*\*([^*]+)\*\*").unwrap();
[INFO] [stderr]    |                        ^^^^^^^^^^ help: convert the identifier to upper case: `BOLD_REGEX`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `code_regex` should have an upper case name
[INFO] [stderr]   --> src/screen_text.rs:50:24
[INFO] [stderr]    |
[INFO] [stderr] 50 |             static ref code_regex: Regex = Regex::new(r"`([^`]+)`").unwrap();
[INFO] [stderr]    |                        ^^^^^^^^^^ help: convert the identifier to upper case: `CODE_REGEX`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `users_cache_mutex` should have an upper case name
[INFO] [stderr]   --> src/tree_views.rs:23:24
[INFO] [stderr]    |
[INFO] [stderr] 23 |             static ref users_cache_mutex: Mutex<UsersCache> = Mutex::new(UsersCache::new());
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `USERS_CACHE_MUTEX`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `bold_regex` should have an upper case name
[INFO] [stderr]   --> src/screen_text.rs:49:24
[INFO] [stderr]    |
[INFO] [stderr] 49 |             static ref bold_regex: Regex = Regex::new(r"\*\*([^*]+)\*\*").unwrap();
[INFO] [stderr]    |                        ^^^^^^^^^^ help: convert the identifier to upper case: `BOLD_REGEX`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `code_regex` should have an upper case name
[INFO] [stderr]   --> src/screen_text.rs:50:24
[INFO] [stderr]    |
[INFO] [stderr] 50 |             static ref code_regex: Regex = Regex::new(r"`([^`]+)`").unwrap();
[INFO] [stderr]    |                        ^^^^^^^^^^ help: convert the identifier to upper case: `CODE_REGEX`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `users_cache_mutex` should have an upper case name
[INFO] [stderr]   --> src/tree_views.rs:23:24
[INFO] [stderr]    |
[INFO] [stderr] 23 |             static ref users_cache_mutex: Mutex<UsersCache> = Mutex::new(UsersCache::new());
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `USERS_CACHE_MUTEX`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `"docker" "inspect" "1cd5273dced97488e3b1052e5d8c1d22072e47f5f72475b4ff0ee1f4eb6e34d2"`
[INFO] running `"docker" "rm" "-f" "1cd5273dced97488e3b1052e5d8c1d22072e47f5f72475b4ff0ee1f4eb6e34d2"`
[INFO] [stdout] 1cd5273dced97488e3b1052e5d8c1d22072e47f5f72475b4ff0ee1f4eb6e34d2