[INFO] cloning repository https://github.com/gbersac/n_puzzle_42 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gbersac/n_puzzle_42" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgbersac%2Fn_puzzle_42", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgbersac%2Fn_puzzle_42'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cb0a3b3888123ba4f830ba93ce1b9f792a0e26dd [INFO] checking gbersac/n_puzzle_42 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgbersac%2Fn_puzzle_42" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gbersac/n_puzzle_42 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/gbersac/n_puzzle_42 [INFO] finished tweaking git repo https://github.com/gbersac/n_puzzle_42 [INFO] tweaked toml for git repo https://github.com/gbersac/n_puzzle_42 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/gbersac/n_puzzle_42 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded term-painter v0.2.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 16a5bb1d91c71ec13e9aa1312fee33d59a998207d913d095beffe6521dc0754f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "16a5bb1d91c71ec13e9aa1312fee33d59a998207d913d095beffe6521dc0754f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "16a5bb1d91c71ec13e9aa1312fee33d59a998207d913d095beffe6521dc0754f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16a5bb1d91c71ec13e9aa1312fee33d59a998207d913d095beffe6521dc0754f", kill_on_drop: false }` [INFO] [stdout] 16a5bb1d91c71ec13e9aa1312fee33d59a998207d913d095beffe6521dc0754f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 25a42e050d12dfb666132c12d6cc7d5738806b68904f30be73c759ca69cc0820 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "25a42e050d12dfb666132c12d6cc7d5738806b68904f30be73c759ca69cc0820", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.79 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking ppv-lite86 v0.2.9 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking term v0.4.6 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking term-painter v0.2.4 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking npuzzle v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/npuzzle.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 41 | for i in (0..self.nb_tile()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/npuzzle.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 57 | for _ in (0..(size * size)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/npuzzle.rs:100:12 [INFO] [stdout] | [INFO] [stdout] 100 | for i in (0..used_numbers.len()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/npuzzle.rs:122:12 [INFO] [stdout] | [INFO] [stdout] 122 | for _ in (0..board.nb_tile()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/npuzzle.rs:204:12 [INFO] [stdout] | [INFO] [stdout] 204 | for i in (0..self.nb_tile()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/npuzzle.rs:234:12 [INFO] [stdout] | [INFO] [stdout] 234 | for i in (0..board.nb_tile()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/npuzzle/errors.rs:44:29 [INFO] [stdout] | [INFO] [stdout] 44 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/npuzzle/errors.rs:80:29 [INFO] [stdout] | [INFO] [stdout] 80 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/board.rs:116:12 [INFO] [stdout] | [INFO] [stdout] 116 | for i in (0..self.nb_tile()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/board.rs:146:12 [INFO] [stdout] | [INFO] [stdout] 146 | for y in (0..self.size) { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/board.rs:147:13 [INFO] [stdout] | [INFO] [stdout] 147 | for x in (0..self.size) { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/board.rs:161:15 [INFO] [stdout] | [INFO] [stdout] 161 | for i in (0..self.nb_tile()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/npuzzle/npuzzle.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | error::Error::description(&why)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/npuzzle/npuzzle.rs:165:9 [INFO] [stdout] | [INFO] [stdout] 165 | error::Error::description(&why)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/npuzzle/npuzzle.rs:174:9 [INFO] [stdout] | [INFO] [stdout] 174 | error::Error::description(&why)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Action`, `Board` [INFO] [stdout] --> src/algo/test.rs:4:25 [INFO] [stdout] | [INFO] [stdout] 4 | use npuzzle::{NPuzzle, Board, Action}; [INFO] [stdout] | ^^^^^ ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `AStarNode` [INFO] [stdout] --> src/algo/test.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | use algo::{AStarNode}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/npuzzle.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 41 | for i in (0..self.nb_tile()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/npuzzle.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 57 | for _ in (0..(size * size)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/npuzzle.rs:100:12 [INFO] [stdout] | [INFO] [stdout] 100 | for i in (0..used_numbers.len()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/npuzzle.rs:122:12 [INFO] [stdout] | [INFO] [stdout] 122 | for _ in (0..board.nb_tile()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/npuzzle.rs:204:12 [INFO] [stdout] | [INFO] [stdout] 204 | for i in (0..self.nb_tile()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/npuzzle.rs:234:12 [INFO] [stdout] | [INFO] [stdout] 234 | for i in (0..board.nb_tile()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/npuzzle/parser.rs:59:6 [INFO] [stdout] | [INFO] [stdout] 59 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `NPuzzle` [INFO] [stdout] --> src/npuzzle/parser.rs:60:16 [INFO] [stdout] | [INFO] [stdout] 60 | use npuzzle::{NPuzzle, Board, Tile}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/npuzzle/errors.rs:44:29 [INFO] [stdout] | [INFO] [stdout] 44 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/npuzzle/errors.rs:80:29 [INFO] [stdout] | [INFO] [stdout] 80 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/npuzzle/test.rs:4:6 [INFO] [stdout] | [INFO] [stdout] 4 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/board.rs:116:12 [INFO] [stdout] | [INFO] [stdout] 116 | for i in (0..self.nb_tile()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/board.rs:146:12 [INFO] [stdout] | [INFO] [stdout] 146 | for y in (0..self.size) { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/board.rs:147:13 [INFO] [stdout] | [INFO] [stdout] 147 | for x in (0..self.size) { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/npuzzle/board.rs:161:15 [INFO] [stdout] | [INFO] [stdout] 161 | for i in (0..self.nb_tile()) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/npuzzle/npuzzle.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | error::Error::description(&why)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/npuzzle/npuzzle.rs:165:9 [INFO] [stdout] | [INFO] [stdout] 165 | error::Error::description(&why)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/npuzzle/npuzzle.rs:174:9 [INFO] [stdout] | [INFO] [stdout] 174 | error::Error::description(&why)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/npuzzle/errors.rs:76:47 [INFO] [stdout] | [INFO] [stdout] 76 | ParseError::IncorrectBoard(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/npuzzle/errors.rs:76:47 [INFO] [stdout] | [INFO] [stdout] 76 | ParseError::IncorrectBoard(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `np` [INFO] [stdout] --> src/npuzzle/parser.rs:87:7 [INFO] [stdout] | [INFO] [stdout] 87 | let np = Board::parse_with_size(&mut str1.to_string()).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_np` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `np` [INFO] [stdout] --> src/npuzzle/parser.rs:98:7 [INFO] [stdout] | [INFO] [stdout] 98 | let np = Board::parse_with_size(&mut str1.to_string()).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_np` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `np` [INFO] [stdout] --> src/npuzzle/parser.rs:109:7 [INFO] [stdout] | [INFO] [stdout] 109 | let np = Board::parse_with_size(&mut str1.to_string()).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_np` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `s2` is never read [INFO] [stdout] --> src/npuzzle/test.rs:57:7 [INFO] [stdout] | [INFO] [stdout] 57 | let mut s2 = ""; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algo/test.rs:16:7 [INFO] [stdout] | [INFO] [stdout] 16 | let mut s = r#"3 [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/algo/test.rs:21:7 [INFO] [stdout] | [INFO] [stdout] 21 | let mut s = r#"3 [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/algo/test.rs:26:7 [INFO] [stdout] | [INFO] [stdout] 26 | let mut s = r#"3 [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/algo/test.rs:31:7 [INFO] [stdout] | [INFO] [stdout] 31 | let mut s = r#"3 [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/algo/test.rs:46:7 [INFO] [stdout] | [INFO] [stdout] 46 | let mut s = r#"3 [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/algo/test.rs:51:7 [INFO] [stdout] | [INFO] [stdout] 51 | let mut s = r#"3 [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/algo/test.rs:56:7 [INFO] [stdout] | [INFO] [stdout] 56 | let mut s = r#"3 [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/algo/test.rs:72:7 [INFO] [stdout] | [INFO] [stdout] 72 | let mut s = r#"3 [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/algo/test.rs:77:7 [INFO] [stdout] | [INFO] [stdout] 77 | let mut s = r#"3 [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/algo/test.rs:82:7 [INFO] [stdout] | [INFO] [stdout] 82 | let mut s = r#"3 [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/npuzzle/parser.rs:64:7 [INFO] [stdout] | [INFO] [stdout] 64 | let mut str1 = r#"2 [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/npuzzle/parser.rs:82:7 [INFO] [stdout] | [INFO] [stdout] 82 | let mut str1 = r#"3 [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/npuzzle/parser.rs:93:7 [INFO] [stdout] | [INFO] [stdout] 93 | let mut str1 = r#"3 [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/npuzzle/parser.rs:104:7 [INFO] [stdout] | [INFO] [stdout] 104 | let mut str1 = r#"3 [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 39 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 15.84s [INFO] running `Command { std: "docker" "inspect" "25a42e050d12dfb666132c12d6cc7d5738806b68904f30be73c759ca69cc0820", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "25a42e050d12dfb666132c12d6cc7d5738806b68904f30be73c759ca69cc0820", kill_on_drop: false }` [INFO] [stdout] 25a42e050d12dfb666132c12d6cc7d5738806b68904f30be73c759ca69cc0820