[INFO] cloning repository https://github.com/swizzard/boggler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swizzard/boggler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswizzard%2Fboggler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswizzard%2Fboggler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cc01442ec61024df5448d8460f06d2fcdd7e2531 [INFO] testing swizzard/boggler against beta-2022-02-22 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswizzard%2Fboggler" "/workspace/builds/worker-92/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-92/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/swizzard/boggler on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/swizzard/boggler [INFO] finished tweaking git repo https://github.com/swizzard/boggler [INFO] tweaked toml for git repo https://github.com/swizzard/boggler written to /workspace/builds/worker-92/source/Cargo.toml [INFO] crate git repo https://github.com/swizzard/boggler already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e9900b3faaef8a158f832c6145dfe9cb7a1534f644f4876366b35d525bfc98ae [INFO] running `Command { std: "docker" "start" "-a" "e9900b3faaef8a158f832c6145dfe9cb7a1534f644f4876366b35d525bfc98ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e9900b3faaef8a158f832c6145dfe9cb7a1534f644f4876366b35d525bfc98ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e9900b3faaef8a158f832c6145dfe9cb7a1534f644f4876366b35d525bfc98ae", kill_on_drop: false }` [INFO] [stdout] e9900b3faaef8a158f832c6145dfe9cb7a1534f644f4876366b35d525bfc98ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d296458b6925b51c57f79275c8f7f322a165a0f5e5eac6f219d4b3c56fc52eae [INFO] running `Command { std: "docker" "start" "-a" "d296458b6925b51c57f79275c8f7f322a165a0f5e5eac6f219d4b3c56fc52eae", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.42 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling rand_core v0.2.1 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling strsim v0.7.0 [INFO] [stderr] Compiling bitflags v1.0.3 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling ascii v0.8.7 [INFO] [stderr] Compiling textwrap v0.9.0 [INFO] [stderr] Compiling atty v0.2.10 [INFO] [stderr] Compiling rand v0.5.1 [INFO] [stderr] Compiling clap v2.31.2 [INFO] [stderr] Compiling boggler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning[E0170]: pattern binding `q` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:98:13 [INFO] [stdout] | [INFO] [stdout] 98 | let q = &AsciiChar::from('q').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bindings_with_variant_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `u` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | let u = &AsciiChar::from('u').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:102:13 [INFO] [stdout] | [INFO] [stdout] 102 | for c in word.chars() { [INFO] [stdout] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:143:26 [INFO] [stdout] | [INFO] [stdout] 143 | Some(c) => self.children.get(c).and_then(|ref child| child.find(&mut chrs, &ascii_word)), [INFO] [stdout] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:181:18 [INFO] [stdout] | [INFO] [stdout] 181 | Some(c) => self.children.entry(*c).or_insert(BTNode::new()).insert(chrs, word), [INFO] [stdout] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:199:18 [INFO] [stdout] | [INFO] [stdout] 199 | Some(c) => self.children.get(c).and_then(|child| child.find(chrs, word)) [INFO] [stdout] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `seen` [INFO] [stdout] --> src/solver.rs:156:17 [INFO] [stdout] | [INFO] [stdout] 156 | let mut seen: HashSet = HashSet::with_capacity(16); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_seen` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `adjcts` [INFO] [stdout] --> src/solver.rs:158:17 [INFO] [stdout] | [INFO] [stdout] 158 | let adjcts = board.adjacents(x, y); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_adjcts` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solver.rs:154:13 [INFO] [stdout] | [INFO] [stdout] 154 | let mut x = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solver.rs:155:13 [INFO] [stdout] | [INFO] [stdout] 155 | let mut y = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solver.rs:156:13 [INFO] [stdout] | [INFO] [stdout] 156 | let mut seen: HashSet = HashSet::with_capacity(16); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `find_letter` [INFO] [stdout] --> src/solver.rs:149:8 [INFO] [stdout] | [INFO] [stdout] 149 | fn find_letter(&self, chr: &AsciiChar) -> Option<&BTNode> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/solver.rs:59:21 [INFO] [stdout] | [INFO] [stdout] 59 | &bt.add_word(ascii_word); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 59 | let _ = &bt.add_word(ascii_word); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/solver.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | &bt.add_word(&w); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 71 | let _ = &bt.add_word(&w); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0170`. [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 17.99s [INFO] running `Command { std: "docker" "inspect" "d296458b6925b51c57f79275c8f7f322a165a0f5e5eac6f219d4b3c56fc52eae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d296458b6925b51c57f79275c8f7f322a165a0f5e5eac6f219d4b3c56fc52eae", kill_on_drop: false }` [INFO] [stdout] d296458b6925b51c57f79275c8f7f322a165a0f5e5eac6f219d4b3c56fc52eae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7d516e0a12e6df1dc6ac3c7e0ecbbb418b764a65c1bd0b56b74c18c7f2b3a23b [INFO] running `Command { std: "docker" "start" "-a" "7d516e0a12e6df1dc6ac3c7e0ecbbb418b764a65c1bd0b56b74c18c7f2b3a23b", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] warning[E0170]: pattern binding `q` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:98:13 [INFO] [stdout] | [INFO] [stdout] 98 | let q = &AsciiChar::from('q').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bindings_with_variant_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `u` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | let u = &AsciiChar::from('u').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:102:13 [INFO] [stdout] | [INFO] [stdout] 102 | for c in word.chars() { [INFO] [stdout] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling boggler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:143:26 [INFO] [stdout] | [INFO] [stdout] 143 | Some(c) => self.children.get(c).and_then(|ref child| child.find(&mut chrs, &ascii_word)), [INFO] [stdout] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:181:18 [INFO] [stdout] | [INFO] [stdout] 181 | Some(c) => self.children.entry(*c).or_insert(BTNode::new()).insert(chrs, word), [INFO] [stdout] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:199:18 [INFO] [stdout] | [INFO] [stdout] 199 | Some(c) => self.children.get(c).and_then(|child| child.find(chrs, word)) [INFO] [stdout] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `seen` [INFO] [stdout] --> src/solver.rs:156:17 [INFO] [stdout] | [INFO] [stdout] 156 | let mut seen: HashSet = HashSet::with_capacity(16); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_seen` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `adjcts` [INFO] [stdout] --> src/solver.rs:158:17 [INFO] [stdout] | [INFO] [stdout] 158 | let adjcts = board.adjacents(x, y); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_adjcts` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solver.rs:154:13 [INFO] [stdout] | [INFO] [stdout] 154 | let mut x = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solver.rs:155:13 [INFO] [stdout] | [INFO] [stdout] 155 | let mut y = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solver.rs:156:13 [INFO] [stdout] | [INFO] [stdout] 156 | let mut seen: HashSet = HashSet::with_capacity(16); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `find_letter` [INFO] [stdout] --> src/solver.rs:149:8 [INFO] [stdout] | [INFO] [stdout] 149 | fn find_letter(&self, chr: &AsciiChar) -> Option<&BTNode> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/solver.rs:59:21 [INFO] [stdout] | [INFO] [stdout] 59 | &bt.add_word(ascii_word); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 59 | let _ = &bt.add_word(ascii_word); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/solver.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | &bt.add_word(&w); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 71 | let _ = &bt.add_word(&w); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0170`. [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `q` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:98:13 [INFO] [stdout] | [INFO] [stdout] 98 | let q = &AsciiChar::from('q').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bindings_with_variant_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `u` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | let u = &AsciiChar::from('u').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:102:13 [INFO] [stdout] | [INFO] [stdout] 102 | for c in word.chars() { [INFO] [stdout] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:143:26 [INFO] [stdout] | [INFO] [stdout] 143 | Some(c) => self.children.get(c).and_then(|ref child| child.find(&mut chrs, &ascii_word)), [INFO] [stdout] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:181:18 [INFO] [stdout] | [INFO] [stdout] 181 | Some(c) => self.children.entry(*c).or_insert(BTNode::new()).insert(chrs, word), [INFO] [stdout] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:199:18 [INFO] [stdout] | [INFO] [stdout] 199 | Some(c) => self.children.get(c).and_then(|child| child.find(chrs, word)) [INFO] [stdout] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `h` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:220:13 [INFO] [stdout] | [INFO] [stdout] 220 | let h = AsciiChar::from('h').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `e` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:221:13 [INFO] [stdout] | [INFO] [stdout] 221 | let e = AsciiChar::from('e').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `r` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:222:13 [INFO] [stdout] | [INFO] [stdout] 222 | let r = AsciiChar::from('r').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `h` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:231:13 [INFO] [stdout] | [INFO] [stdout] 231 | let h = AsciiChar::from('h').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `e` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:232:13 [INFO] [stdout] | [INFO] [stdout] 232 | let e = AsciiChar::from('e').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `r` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:233:13 [INFO] [stdout] | [INFO] [stdout] 233 | let r = AsciiChar::from('r').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `o` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stdout] --> src/solver.rs:234:13 [INFO] [stdout] | [INFO] [stdout] 234 | let o = AsciiChar::from('o').unwrap(); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `seen` [INFO] [stdout] --> src/solver.rs:156:17 [INFO] [stdout] | [INFO] [stdout] 156 | let mut seen: HashSet = HashSet::with_capacity(16); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_seen` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `adjcts` [INFO] [stdout] --> src/solver.rs:158:17 [INFO] [stdout] | [INFO] [stdout] 158 | let adjcts = board.adjacents(x, y); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_adjcts` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solver.rs:154:13 [INFO] [stdout] | [INFO] [stdout] 154 | let mut x = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solver.rs:155:13 [INFO] [stdout] | [INFO] [stdout] 155 | let mut y = 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solver.rs:156:13 [INFO] [stdout] | [INFO] [stdout] 156 | let mut seen: HashSet = HashSet::with_capacity(16); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/solver.rs:59:21 [INFO] [stdout] | [INFO] [stdout] 59 | &bt.add_word(ascii_word); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 59 | let _ = &bt.add_word(ascii_word); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/solver.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | &bt.add_word(&w); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 71 | let _ = &bt.add_word(&w); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 20 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0170`. [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.54s [INFO] running `Command { std: "docker" "inspect" "7d516e0a12e6df1dc6ac3c7e0ecbbb418b764a65c1bd0b56b74c18c7f2b3a23b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d516e0a12e6df1dc6ac3c7e0ecbbb418b764a65c1bd0b56b74c18c7f2b3a23b", kill_on_drop: false }` [INFO] [stdout] 7d516e0a12e6df1dc6ac3c7e0ecbbb418b764a65c1bd0b56b74c18c7f2b3a23b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 665eaad31bfee279e84f887957a24cbea3d6c79fe2d0984e41a8c6f31e88125f [INFO] running `Command { std: "docker" "start" "-a" "665eaad31bfee279e84f887957a24cbea3d6c79fe2d0984e41a8c6f31e88125f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning[E0170]: pattern binding `q` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:98:13 [INFO] [stderr] | [INFO] [stderr] 98 | let q = &AsciiChar::from('q').unwrap(); [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bindings_with_variant_name)]` on by default [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `u` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:99:13 [INFO] [stderr] | [INFO] [stderr] 99 | let u = &AsciiChar::from('u').unwrap(); [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:102:13 [INFO] [stderr] | [INFO] [stderr] 102 | for c in word.chars() { [INFO] [stderr] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:143:26 [INFO] [stderr] | [INFO] [stderr] 143 | Some(c) => self.children.get(c).and_then(|ref child| child.find(&mut chrs, &ascii_word)), [INFO] [stderr] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:181:18 [INFO] [stderr] | [INFO] [stderr] 181 | Some(c) => self.children.entry(*c).or_insert(BTNode::new()).insert(chrs, word), [INFO] [stderr] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `c` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:199:18 [INFO] [stderr] | [INFO] [stderr] 199 | Some(c) => self.children.get(c).and_then(|child| child.find(chrs, word)) [INFO] [stderr] | ^ help: to match on the variant, qualify the path: `solver::ascii::AsciiChar::c` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `seen` [INFO] [stderr] --> src/solver.rs:156:17 [INFO] [stderr] | [INFO] [stderr] 156 | let mut seen: HashSet = HashSet::with_capacity(16); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_seen` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `adjcts` [INFO] [stderr] --> src/solver.rs:158:17 [INFO] [stderr] | [INFO] [stderr] 158 | let adjcts = board.adjacents(x, y); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_adjcts` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/solver.rs:154:13 [INFO] [stderr] | [INFO] [stderr] 154 | let mut x = 0; [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/solver.rs:155:13 [INFO] [stderr] | [INFO] [stderr] 155 | let mut y = 0; [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/solver.rs:156:13 [INFO] [stderr] | [INFO] [stderr] 156 | let mut seen: HashSet = HashSet::with_capacity(16); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `find_letter` [INFO] [stderr] --> src/solver.rs:149:8 [INFO] [stderr] | [INFO] [stderr] 149 | fn find_letter(&self, chr: &AsciiChar) -> Option<&BTNode> { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/solver.rs:59:21 [INFO] [stderr] | [INFO] [stderr] 59 | &bt.add_word(ascii_word); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 59 | let _ = &bt.add_word(ascii_word); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/solver.rs:71:13 [INFO] [stderr] | [INFO] [stderr] 71 | &bt.add_word(&w); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 71 | let _ = &bt.add_word(&w); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0170`. [INFO] [stderr] warning[E0170]: pattern binding `h` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:220:13 [INFO] [stderr] | [INFO] [stderr] 220 | let h = AsciiChar::from('h').unwrap(); [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `e` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:221:13 [INFO] [stderr] | [INFO] [stderr] 221 | let e = AsciiChar::from('e').unwrap(); [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `r` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:222:13 [INFO] [stderr] | [INFO] [stderr] 222 | let r = AsciiChar::from('r').unwrap(); [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `h` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:231:13 [INFO] [stderr] | [INFO] [stderr] 231 | let h = AsciiChar::from('h').unwrap(); [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `e` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:232:13 [INFO] [stderr] | [INFO] [stderr] 232 | let e = AsciiChar::from('e').unwrap(); [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `r` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:233:13 [INFO] [stderr] | [INFO] [stderr] 233 | let r = AsciiChar::from('r').unwrap(); [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning[E0170]: pattern binding `o` is named the same as one of the variants of the type `solver::ascii::AsciiChar` [INFO] [stderr] --> src/solver.rs:234:13 [INFO] [stderr] | [INFO] [stderr] 234 | let o = AsciiChar::from('o').unwrap(); [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: `boggler` (lib) generated 14 warnings [INFO] [stderr] warning: `boggler` (lib test) generated 20 warnings (13 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1m 30s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/boggler-5ee2096e5cdf50f0) [INFO] [stdout] [INFO] [stdout] running 16 tests [INFO] [stdout] test board::test::test_adjacents_bottom ... ok [INFO] [stdout] test board::test::test_adjacents_left_side ... ok [INFO] [stdout] test board::test::test_adjacents_middle ... ok [INFO] [stdout] test board::test::test_adjacents_right_side ... ok [INFO] [stdout] test board::test::test_adjacents_top ... ok [INFO] [stdout] test board::test::test_adjacents_upper_left_corner ... ok [INFO] [stdout] test board::test::test_adjacents_upper_right_corner ... ok [INFO] [stdout] test solver::test::count_word_no_q ... ok [INFO] [stdout] test solver::test::count_word_u_no_q ... ok [INFO] [stdout] test solver::test::count_word_q ... ok [INFO] [stdout] test solver::test::find ... ok [INFO] [stdout] test solver::test::new_empty ... ok [INFO] [stdout] test solver::test::find_letter ... ok [INFO] [stdout] test solver::test::new_one_word ... ok [INFO] [stdout] test solver::test::prepare_word_lowercase ... ok [INFO] [stdout] test solver::test::two_new_words ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/boggler-a03f51fe534798a9) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests boggler [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "665eaad31bfee279e84f887957a24cbea3d6c79fe2d0984e41a8c6f31e88125f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "665eaad31bfee279e84f887957a24cbea3d6c79fe2d0984e41a8c6f31e88125f", kill_on_drop: false }` [INFO] [stdout] 665eaad31bfee279e84f887957a24cbea3d6c79fe2d0984e41a8c6f31e88125f