[INFO] updating cached repository cdacos/djikstra_in_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cdacos/djikstra_in_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cdacos/djikstra_in_rust" "work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/cdacos/djikstra_in_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/cdacos/djikstra_in_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cdacos/djikstra_in_rust" "work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/cdacos/djikstra_in_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/cdacos/djikstra_in_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6763fb352669d71779ce24960533d99d66ff822b
[INFO] sha for GitHub repo cdacos/djikstra_in_rust: 6763fb352669d71779ce24960533d99d66ff822b
[INFO] validating manifest of cdacos/djikstra_in_rust on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cdacos/djikstra_in_rust on toolchain try#74092351c05ae61047b2be02024415546595e974
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cdacos/djikstra_in_rust
[INFO] finished frobbing cdacos/djikstra_in_rust
[INFO] frobbed toml for cdacos/djikstra_in_rust written to work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/cdacos/djikstra_in_rust/Cargo.toml
[INFO] started frobbing cdacos/djikstra_in_rust
[INFO] finished frobbing cdacos/djikstra_in_rust
[INFO] frobbed toml for cdacos/djikstra_in_rust written to work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/cdacos/djikstra_in_rust/Cargo.toml
[INFO] crate cdacos/djikstra_in_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cdacos/djikstra_in_rust against try#74092351c05ae61047b2be02024415546595e974 for pr-60174
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60174/worker-7/try#74092351c05ae61047b2be02024415546595e974:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/cdacos/djikstra_in_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+74092351c05ae61047b2be02024415546595e974-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0a096518d44cc1d4b761f740ce74a18015a83f627537754d3094c1faf9d6b6b1
[INFO] running `"docker" "start" "-a" "0a096518d44cc1d4b761f740ce74a18015a83f627537754d3094c1faf9d6b6b1"`
[INFO] [stderr]     Checking djikstra v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:43:21
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 let mut neighbours = adjacencies.get_mut(&edge[0]).expect("?");
[INFO] [stderr]    |                     ----^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:48:21
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 let mut neighbours = adjacencies.get_mut(&edge[1]).expect("?");
[INFO] [stderr]    |                     ----^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:43:21
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 let mut neighbours = adjacencies.get_mut(&edge[0]).expect("?");
[INFO] [stderr]    |                     ----^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:48:21
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 let mut neighbours = adjacencies.get_mut(&edge[1]).expect("?");
[INFO] [stderr]    |                     ----^^^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "0a096518d44cc1d4b761f740ce74a18015a83f627537754d3094c1faf9d6b6b1"`
[INFO] running `"docker" "rm" "-f" "0a096518d44cc1d4b761f740ce74a18015a83f627537754d3094c1faf9d6b6b1"`
[INFO] [stdout] 0a096518d44cc1d4b761f740ce74a18015a83f627537754d3094c1faf9d6b6b1