[INFO] updating cached repository gamozolabs/slime_tree
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gamozolabs/slime_tree
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gamozolabs/slime_tree" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/gamozolabs/slime_tree"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/gamozolabs/slime_tree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gamozolabs/slime_tree" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/gamozolabs/slime_tree"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/gamozolabs/slime_tree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4b520eaeafe3bd3ea1aa1b8406b130d32cf9160a
[INFO] sha for GitHub repo gamozolabs/slime_tree: 4b520eaeafe3bd3ea1aa1b8406b130d32cf9160a
[INFO] validating manifest of gamozolabs/slime_tree on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gamozolabs/slime_tree on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gamozolabs/slime_tree
[INFO] finished frobbing gamozolabs/slime_tree
[INFO] frobbed toml for gamozolabs/slime_tree written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/gamozolabs/slime_tree/Cargo.toml
[INFO] started frobbing gamozolabs/slime_tree
[INFO] finished frobbing gamozolabs/slime_tree
[INFO] frobbed toml for gamozolabs/slime_tree written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/gamozolabs/slime_tree/Cargo.toml
[INFO] crate gamozolabs/slime_tree already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gamozolabs/slime_tree against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-1/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/gamozolabs/slime_tree:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 78b474b628a3eaf75c3eb32778f0953556243b3059778e47177760e846fc28c3
[INFO] running `"docker" "start" "-a" "78b474b628a3eaf75c3eb32778f0953556243b3059778e47177760e846fc28c3"`
[INFO] [stderr]     Checking slime_tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stderr]   --> src/main.rs:55:53
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn worker(listing: Arc<Vec<(PathBuf, bool, bool)>>, stream: Arc<Mutex<TcpStream>>) {
[INFO] [stderr]    |                                                     ^^^^^^ help: consider prefixing with an underscore: `_stream`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stderr]   --> src/main.rs:55:53
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn worker(listing: Arc<Vec<(PathBuf, bool, bool)>>, stream: Arc<Mutex<TcpStream>>) {
[INFO] [stderr]    |                                                     ^^^^^^ help: consider prefixing with an underscore: `_stream`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inform_filename`
[INFO] [stderr]    --> src/main.rs:122:1
[INFO] [stderr]     |
[INFO] [stderr] 122 | fn inform_filename(handle: &Mutex<TcpStream>, filename: &str) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inform_filename`
[INFO] [stderr]    --> src/main.rs:122:1
[INFO] [stderr]     |
[INFO] [stderr] 122 | fn inform_filename(handle: &Mutex<TcpStream>, filename: &str) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "78b474b628a3eaf75c3eb32778f0953556243b3059778e47177760e846fc28c3"`
[INFO] running `"docker" "rm" "-f" "78b474b628a3eaf75c3eb32778f0953556243b3059778e47177760e846fc28c3"`
[INFO] [stdout] 78b474b628a3eaf75c3eb32778f0953556243b3059778e47177760e846fc28c3