[INFO] fetching crate maze_rs 1.0.0...
[INFO] checking maze_rs-1.0.0 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate maze_rs 1.0.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate maze_rs 1.0.0 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maze_rs 1.0.0
[INFO] finished tweaking crates.io crate maze_rs 1.0.0
[INFO] tweaked toml for crates.io crate maze_rs 1.0.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate maze_rs 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2475c732991cba40a3923693b31342a61b604be2064a75d326528610d5f564d4
[INFO] running `Command { std: "docker" "start" "-a" "2475c732991cba40a3923693b31342a61b604be2064a75d326528610d5f564d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2475c732991cba40a3923693b31342a61b604be2064a75d326528610d5f564d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2475c732991cba40a3923693b31342a61b604be2064a75d326528610d5f564d4", kill_on_drop: false }`
[INFO] [stdout] 2475c732991cba40a3923693b31342a61b604be2064a75d326528610d5f564d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c80d88646ecdc78494e73246aa1647c8c4c0ce8374428c6d1fce02eb33eb3f08
[INFO] running `Command { std: "docker" "start" "-a" "c80d88646ecdc78494e73246aa1647c8c4c0ce8374428c6d1fce02eb33eb3f08", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking maze_rs v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `ds`
[INFO] [stdout]   --> src/helper/mod.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     use ds::Point;
[INFO] [stdout]    |         ^^ help: a similar path exists: `crate::ds`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/error/mod.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct Custom {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 60 |     kind: ErrorKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Custom` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `v` is never read
[INFO] [stdout]    --> src/ds/graphs.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 162 | struct Vertex {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] 163 |     // the id of this vertex
[INFO] [stdout] 164 |     v: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Vertex` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `maze_rs` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c80d88646ecdc78494e73246aa1647c8c4c0ce8374428c6d1fce02eb33eb3f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c80d88646ecdc78494e73246aa1647c8c4c0ce8374428c6d1fce02eb33eb3f08", kill_on_drop: false }`
[INFO] [stdout] c80d88646ecdc78494e73246aa1647c8c4c0ce8374428c6d1fce02eb33eb3f08
[INFO] checking maze_rs-1.0.0 against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] extracting crate maze_rs 1.0.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate maze_rs 1.0.0 on toolchain b4fc5dbf0bc33be331f9d893db5b3a794f29724a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maze_rs 1.0.0
[INFO] finished tweaking crates.io crate maze_rs 1.0.0
[INFO] tweaked toml for crates.io crate maze_rs 1.0.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate maze_rs 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb0b249113755556f0a88f21e40b7c3379081dd60e20689fd9ee541ca1b305c4
[INFO] running `Command { std: "docker" "start" "-a" "fb0b249113755556f0a88f21e40b7c3379081dd60e20689fd9ee541ca1b305c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb0b249113755556f0a88f21e40b7c3379081dd60e20689fd9ee541ca1b305c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb0b249113755556f0a88f21e40b7c3379081dd60e20689fd9ee541ca1b305c4", kill_on_drop: false }`
[INFO] [stdout] fb0b249113755556f0a88f21e40b7c3379081dd60e20689fd9ee541ca1b305c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4b79570875eeea2f3a5cf93efd3faa67434d2e00a5569df4cc0a008013cc7aa
[INFO] running `Command { std: "docker" "start" "-a" "c4b79570875eeea2f3a5cf93efd3faa67434d2e00a5569df4cc0a008013cc7aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking maze_rs v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `ds`
[INFO] [stdout]   --> src/helper/mod.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     use ds::Point;
[INFO] [stdout]    |         ^^ help: a similar path exists: `crate::ds`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:36:18
[INFO] [stdout]    |
[INFO] [stdout] 36 |         for _ in 0..height {
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:43:18
[INFO] [stdout]    |
[INFO] [stdout] 43 |         for i in 0..height {
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:44:22
[INFO] [stdout]    |
[INFO] [stdout] 44 |             for j in 0..width {
[INFO] [stdout]    |                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:71:18
[INFO] [stdout]    |
[INFO] [stdout] 71 |         for i in 0..new_maze.height {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:72:22
[INFO] [stdout]    |
[INFO] [stdout] 72 |             for j in 0..new_maze.width {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:92:18
[INFO] [stdout]    |
[INFO] [stdout] 92 |         for i in 0..self.height {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:93:22
[INFO] [stdout]    |
[INFO] [stdout] 93 |             for j in 0..self.width - 1 {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:99:18
[INFO] [stdout]    |
[INFO] [stdout] 99 |         for i in 0..self.height - 1 {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/core/mod.rs:100:22
[INFO] [stdout]     |
[INFO] [stdout] 100 |             for j in 0..self.width {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/core/mod.rs:203:22
[INFO] [stdout]     |
[INFO] [stdout] 203 |             for i in 0..path.len() - 1 {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/core/mod.rs:233:18
[INFO] [stdout]     |
[INFO] [stdout] 233 |         for i in 0..path.len() - 1 {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/core/mod.rs:313:18
[INFO] [stdout]     |
[INFO] [stdout] 313 |         for i in 0..self.spanning_tree.size() {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/ds/graphs.rs:45:18
[INFO] [stdout]    |
[INFO] [stdout] 45 |         for i in 0..n {
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/ds/graphs.rs:84:18
[INFO] [stdout]    |
[INFO] [stdout] 84 |         for i in 0..self.n {
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/ds/graphs.rs:148:23
[INFO] [stdout]     |
[INFO] [stdout] 148 |         for vertex in 0..self.n {
[INFO] [stdout]     |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/graphics/renderer.rs:79:14
[INFO] [stdout]    |
[INFO] [stdout] 79 |     for i in 0..maze.get_height() {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/graphics/renderer.rs:80:18
[INFO] [stdout]    |
[INFO] [stdout] 80 |         for j in 0..maze.get_width() {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/graphics/renderer.rs:111:14
[INFO] [stdout]     |
[INFO] [stdout] 111 |     for _ in 0..3 {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/graphics/renderer.rs:128:22
[INFO] [stdout]     |
[INFO] [stdout] 128 |             for _ in 0..NORTH_SPRITE.len() - 2 {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/graphics/renderer.rs:135:22
[INFO] [stdout]     |
[INFO] [stdout] 135 |             for _ in 0..SOUTH_SPRITE.len() - 2 {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/helper/mod.rs:32:19
[INFO] [stdout]    |
[INFO] [stdout] 32 |     rng.gen_range(l..h + 1)
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:36:18
[INFO] [stdout]    |
[INFO] [stdout] 36 |         for _ in 0..height {
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:43:18
[INFO] [stdout]    |
[INFO] [stdout] 43 |         for i in 0..height {
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:44:22
[INFO] [stdout]    |
[INFO] [stdout] 44 |             for j in 0..width {
[INFO] [stdout]    |                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:71:18
[INFO] [stdout]    |
[INFO] [stdout] 71 |         for i in 0..new_maze.height {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:72:22
[INFO] [stdout]    |
[INFO] [stdout] 72 |             for j in 0..new_maze.width {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:92:18
[INFO] [stdout]    |
[INFO] [stdout] 92 |         for i in 0..self.height {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:93:22
[INFO] [stdout]    |
[INFO] [stdout] 93 |             for j in 0..self.width - 1 {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/core/mod.rs:99:18
[INFO] [stdout]    |
[INFO] [stdout] 99 |         for i in 0..self.height - 1 {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/core/mod.rs:100:22
[INFO] [stdout]     |
[INFO] [stdout] 100 |             for j in 0..self.width {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/core/mod.rs:203:22
[INFO] [stdout]     |
[INFO] [stdout] 203 |             for i in 0..path.len() - 1 {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/core/mod.rs:233:18
[INFO] [stdout]     |
[INFO] [stdout] 233 |         for i in 0..path.len() - 1 {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/core/mod.rs:313:18
[INFO] [stdout]     |
[INFO] [stdout] 313 |         for i in 0..self.spanning_tree.size() {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/ds/graphs.rs:45:18
[INFO] [stdout]    |
[INFO] [stdout] 45 |         for i in 0..n {
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/ds/graphs.rs:84:18
[INFO] [stdout]    |
[INFO] [stdout] 84 |         for i in 0..self.n {
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/ds/graphs.rs:148:23
[INFO] [stdout]     |
[INFO] [stdout] 148 |         for vertex in 0..self.n {
[INFO] [stdout]     |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/graphics/renderer.rs:79:14
[INFO] [stdout]    |
[INFO] [stdout] 79 |     for i in 0..maze.get_height() {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/graphics/renderer.rs:80:18
[INFO] [stdout]    |
[INFO] [stdout] 80 |         for j in 0..maze.get_width() {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/graphics/renderer.rs:111:14
[INFO] [stdout]     |
[INFO] [stdout] 111 |     for _ in 0..3 {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/graphics/renderer.rs:128:22
[INFO] [stdout]     |
[INFO] [stdout] 128 |             for _ in 0..NORTH_SPRITE.len() - 2 {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/graphics/renderer.rs:135:22
[INFO] [stdout]     |
[INFO] [stdout] 135 |             for _ in 0..SOUTH_SPRITE.len() - 2 {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/helper/mod.rs:32:19
[INFO] [stdout]    |
[INFO] [stdout] 32 |     rng.gen_range(l..h + 1)
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/error/mod.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct Custom {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 60 |     kind: ErrorKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Custom` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `v` is never read
[INFO] [stdout]    --> src/ds/graphs.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 162 | struct Vertex {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] 163 |     // the id of this vertex
[INFO] [stdout] 164 |     v: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Vertex` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `maze_rs` (lib test) due to 2 previous errors; 21 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c4b79570875eeea2f3a5cf93efd3faa67434d2e00a5569df4cc0a008013cc7aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4b79570875eeea2f3a5cf93efd3faa67434d2e00a5569df4cc0a008013cc7aa", kill_on_drop: false }`
[INFO] [stdout] c4b79570875eeea2f3a5cf93efd3faa67434d2e00a5569df4cc0a008013cc7aa
