[INFO] updating cached repository bobvandenberge/dammen-in-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bobvandenberge/dammen-in-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bobvandenberge/dammen-in-rust" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/bobvandenberge/dammen-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/bobvandenberge/dammen-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bobvandenberge/dammen-in-rust" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/bobvandenberge/dammen-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/bobvandenberge/dammen-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9f99688a5cef38ff10e1ba94a0a6181bbec82324
[INFO] sha for GitHub repo bobvandenberge/dammen-in-rust: 9f99688a5cef38ff10e1ba94a0a6181bbec82324
[INFO] validating manifest of bobvandenberge/dammen-in-rust 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 bobvandenberge/dammen-in-rust 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 bobvandenberge/dammen-in-rust
[INFO] finished frobbing bobvandenberge/dammen-in-rust
[INFO] frobbed toml for bobvandenberge/dammen-in-rust written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/bobvandenberge/dammen-in-rust/Cargo.toml
[INFO] started frobbing bobvandenberge/dammen-in-rust
[INFO] finished frobbing bobvandenberge/dammen-in-rust
[INFO] frobbed toml for bobvandenberge/dammen-in-rust written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/bobvandenberge/dammen-in-rust/Cargo.toml
[INFO] crate bobvandenberge/dammen-in-rust 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 bobvandenberge/dammen-in-rust against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-7/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/bobvandenberge/dammen-in-rust:/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] 941eb4af8599fa3ca5d1927526e28d4f9eaaa2677da6497cd94afd61c28c1455
[INFO] running `"docker" "start" "-a" "941eb4af8599fa3ca5d1927526e28d4f9eaaa2677da6497cd94afd61c28c1455"`
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking dammen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core/bord.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 |         let mut veld = &mut self.velden[index];
[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: variant is never constructed: `Dam`
[INFO] [stderr]   --> src/core/schijf.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Dam(SchijfKleur),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/core/engine/regels.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn new(geslagen_schijf_positie: u32, eind_positie: u32) -> SlagOptie {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BeurtBlijftGelijk`
[INFO] [stderr]   --> src/core/engine/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     BeurtBlijftGelijk,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/core/bord.rs:49:28
[INFO] [stderr]    |
[INFO] [stderr] 49 |         if index >= 100 || index < 0 {
[INFO] [stderr]    |                            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_comparisons)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core/bord.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 |         let mut veld = &mut self.velden[index];
[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: variant is never constructed: `Dam`
[INFO] [stderr]   --> src/core/schijf.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Dam(SchijfKleur),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BeurtBlijftGelijk`
[INFO] [stderr]   --> src/core/engine/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     BeurtBlijftGelijk,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/core/bord.rs:49:28
[INFO] [stderr]    |
[INFO] [stderr] 49 |         if index >= 100 || index < 0 {
[INFO] [stderr]    |                            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_comparisons)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/core/engine/mod.rs:178:9
[INFO] [stderr]     |
[INFO] [stderr] 178 |         (*engine).voer_zet_uit(&SchijfKleur::Wit, &mut bord, &zet);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/core/engine/mod.rs:185:9
[INFO] [stderr]     |
[INFO] [stderr] 185 |         (*engine).voer_zet_uit(&SchijfKleur::Zwart, &mut bord, &zet);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/core/engine/mod.rs:206:9
[INFO] [stderr]     |
[INFO] [stderr] 206 |         (*engine).voer_zet_uit(&SchijfKleur::Wit, &mut bord, &zet);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/core/engine/mod.rs:213:9
[INFO] [stderr]     |
[INFO] [stderr] 213 |         (*engine).voer_zet_uit(&SchijfKleur::Zwart, &mut bord, &zet);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/core/engine/mod.rs:234:9
[INFO] [stderr]     |
[INFO] [stderr] 234 |         (*engine).voer_zet_uit(&SchijfKleur::Wit, &mut bord, &zet);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/core/engine/mod.rs:241:9
[INFO] [stderr]     |
[INFO] [stderr] 241 |         (*engine).voer_zet_uit(&SchijfKleur::Zwart, &mut bord, &zet);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.43s
[INFO] running `"docker" "inspect" "941eb4af8599fa3ca5d1927526e28d4f9eaaa2677da6497cd94afd61c28c1455"`
[INFO] running `"docker" "rm" "-f" "941eb4af8599fa3ca5d1927526e28d4f9eaaa2677da6497cd94afd61c28c1455"`
[INFO] [stdout] 941eb4af8599fa3ca5d1927526e28d4f9eaaa2677da6497cd94afd61c28c1455