[INFO] updating cached repository tlehman/gogame [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/tlehman/gogame [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/tlehman/gogame" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/tlehman/gogame"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/tlehman/gogame'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/tlehman/gogame" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/tlehman/gogame"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/tlehman/gogame'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 13b2e1aba16fa8bb1eee115933bdd5f194c2ebaa [INFO] sha for GitHub repo tlehman/gogame: 13b2e1aba16fa8bb1eee115933bdd5f194c2ebaa [INFO] validating manifest of tlehman/gogame on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of tlehman/gogame on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing tlehman/gogame [INFO] finished frobbing tlehman/gogame [INFO] frobbed toml for tlehman/gogame written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/tlehman/gogame/Cargo.toml [INFO] started frobbing tlehman/gogame [INFO] finished frobbing tlehman/gogame [INFO] frobbed toml for tlehman/gogame written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/tlehman/gogame/Cargo.toml [INFO] crate tlehman/gogame already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking tlehman/gogame against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/tlehman/gogame:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] e7241064ff1ef2787dd9ccd207d2087f13e2dd65447add71572364834b8a4a10 [INFO] running `"docker" "start" "-a" "e7241064ff1ef2787dd9ccd207d2087f13e2dd65447add71572364834b8a4a10"` [INFO] [stderr] Checking gogame v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/main.rs:36:49 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ----- ^^^^^ unreachable pattern [INFO] [stderr] | | [INFO] [stderr] | matches any value [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/main.rs:36:67 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ----- matches any value ^^^^^ unreachable pattern [INFO] [stderr] [INFO] [stderr] warning: unused variable: `Empty` [INFO] [stderr] --> src/main.rs:36:36 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_Empty` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `White` [INFO] [stderr] --> src/main.rs:36:49 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_White` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `Black` [INFO] [stderr] --> src/main.rs:36:67 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_Black` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `to_add_node` is never read [INFO] [stderr] --> src/main.rs:95:17 [INFO] [stderr] | [INFO] [stderr] 95 | to_add_node = false; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Empty` [INFO] [stderr] --> src/main.rs:8:14 [INFO] [stderr] | [INFO] [stderr] 8 | enum Color { Empty, Black, White } [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `contained_in` [INFO] [stderr] --> src/main.rs:20:1 [INFO] [stderr] | [INFO] [stderr] 20 | fn contained_in(n: &Node, v: &VecDeque) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `neighbors_of` [INFO] [stderr] --> src/main.rs:71:5 [INFO] [stderr] | [INFO] [stderr] 71 | fn neighbors_of(&self, n: Node) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `find_component_containing` [INFO] [stderr] --> src/main.rs:119:5 [INFO] [stderr] | [INFO] [stderr] 119 | fn find_component_containing(&mut self, u: Node) -> HashSet { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add_edge_black` [INFO] [stderr] --> src/main.rs:156:5 [INFO] [stderr] | [INFO] [stderr] 156 | fn add_edge_black(&mut self, src: (i16, i16), dst: (i16, i16)) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add_edge_white` [INFO] [stderr] --> src/main.rs:168:5 [INFO] [stderr] | [INFO] [stderr] 168 | fn add_edge_white(&mut self, src: (i16, i16), dst: (i16, i16)) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `find_component_doubleton` [INFO] [stderr] --> src/main.rs:263:1 [INFO] [stderr] | [INFO] [stderr] 263 | fn find_component_doubleton() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `Empty` should have a snake case name [INFO] [stderr] --> src/main.rs:36:36 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ^^^^^ help: convert the identifier to snake case: `empty` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `White` should have a snake case name [INFO] [stderr] --> src/main.rs:36:49 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ^^^^^ help: convert the identifier to snake case: `white` [INFO] [stderr] [INFO] [stderr] warning: variable `Black` should have a snake case name [INFO] [stderr] --> src/main.rs:36:67 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ^^^^^ help: convert the identifier to snake case: `black` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:49:9 [INFO] [stderr] | [INFO] [stderr] 49 | write!(f, "\"({},{})\" [pos=\"{},{}!\"", self.x, self.y, self.x, self.y); [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] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:50:9 [INFO] [stderr] | [INFO] [stderr] 50 | / match self.c { [INFO] [stderr] 51 | | Color::Black => write!(f, ",style=filled,fillcolor=\"#666666\"];"), [INFO] [stderr] 52 | | Color::White => write!(f, ",style=filled,fillcolor=\"white\"];"), [INFO] [stderr] 53 | | Color::Empty => write!(f, "];") [INFO] [stderr] 54 | | }; [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/main.rs:184:9 [INFO] [stderr] | [INFO] [stderr] 184 | write!(f, "graph {{\n"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:186:13 [INFO] [stderr] | [INFO] [stderr] 186 | write!(f, "{}\n", self.nodes[i]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:189:13 [INFO] [stderr] | [INFO] [stderr] 189 | write!(f, "{}\n", self.edges[i]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/main.rs:36:49 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ----- ^^^^^ unreachable pattern [INFO] [stderr] | | [INFO] [stderr] | matches any value [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/main.rs:36:67 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ----- matches any value ^^^^^ unreachable pattern [INFO] [stderr] [INFO] [stderr] warning: unused variable: `Empty` [INFO] [stderr] --> src/main.rs:36:36 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_Empty` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `White` [INFO] [stderr] --> src/main.rs:36:49 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_White` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `Black` [INFO] [stderr] --> src/main.rs:36:67 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_Black` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `to_add_node` is never read [INFO] [stderr] --> src/main.rs:95:17 [INFO] [stderr] | [INFO] [stderr] 95 | to_add_node = false; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Empty` [INFO] [stderr] --> src/main.rs:8:14 [INFO] [stderr] | [INFO] [stderr] 8 | enum Color { Empty, Black, White } [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `find_component_containing` [INFO] [stderr] --> src/main.rs:119:5 [INFO] [stderr] | [INFO] [stderr] 119 | fn find_component_containing(&mut self, u: Node) -> HashSet { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add_edge_black` [INFO] [stderr] --> src/main.rs:156:5 [INFO] [stderr] | [INFO] [stderr] 156 | fn add_edge_black(&mut self, src: (i16, i16), dst: (i16, i16)) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add_edge_white` [INFO] [stderr] --> src/main.rs:168:5 [INFO] [stderr] | [INFO] [stderr] 168 | fn add_edge_white(&mut self, src: (i16, i16), dst: (i16, i16)) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `find_component_doubleton` [INFO] [stderr] --> src/main.rs:263:1 [INFO] [stderr] | [INFO] [stderr] 263 | fn find_component_doubleton() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `Empty` should have a snake case name [INFO] [stderr] --> src/main.rs:36:36 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ^^^^^ help: convert the identifier to snake case: `empty` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `White` should have a snake case name [INFO] [stderr] --> src/main.rs:36:49 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ^^^^^ help: convert the identifier to snake case: `white` [INFO] [stderr] [INFO] [stderr] warning: variable `Black` should have a snake case name [INFO] [stderr] --> src/main.rs:36:67 [INFO] [stderr] | [INFO] [stderr] 36 | let s: &str = match self { Empty => "", White => "white", Black => "black", }; [INFO] [stderr] | ^^^^^ help: convert the identifier to snake case: `black` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:49:9 [INFO] [stderr] | [INFO] [stderr] 49 | write!(f, "\"({},{})\" [pos=\"{},{}!\"", self.x, self.y, self.x, self.y); [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] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:50:9 [INFO] [stderr] | [INFO] [stderr] 50 | / match self.c { [INFO] [stderr] 51 | | Color::Black => write!(f, ",style=filled,fillcolor=\"#666666\"];"), [INFO] [stderr] 52 | | Color::White => write!(f, ",style=filled,fillcolor=\"white\"];"), [INFO] [stderr] 53 | | Color::Empty => write!(f, "];") [INFO] [stderr] 54 | | }; [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/main.rs:184:9 [INFO] [stderr] | [INFO] [stderr] 184 | write!(f, "graph {{\n"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:186:13 [INFO] [stderr] | [INFO] [stderr] 186 | write!(f, "{}\n", self.nodes[i]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:189:13 [INFO] [stderr] | [INFO] [stderr] 189 | write!(f, "{}\n", self.edges[i]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.82s [INFO] running `"docker" "inspect" "e7241064ff1ef2787dd9ccd207d2087f13e2dd65447add71572364834b8a4a10"` [INFO] running `"docker" "rm" "-f" "e7241064ff1ef2787dd9ccd207d2087f13e2dd65447add71572364834b8a4a10"` [INFO] [stdout] e7241064ff1ef2787dd9ccd207d2087f13e2dd65447add71572364834b8a4a10