[INFO] cloning repository https://github.com/dwuggh/15-puzzle-helper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dwuggh/15-puzzle-helper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdwuggh%2F15-puzzle-helper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdwuggh%2F15-puzzle-helper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e78a92114373712e51f5d9a51d234554a764052
[INFO] checking dwuggh/15-puzzle-helper against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdwuggh%2F15-puzzle-helper" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dwuggh/15-puzzle-helper
[INFO] finished tweaking git repo https://github.com/dwuggh/15-puzzle-helper
[INFO] tweaked toml for git repo https://github.com/dwuggh/15-puzzle-helper written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dwuggh/15-puzzle-helper on toolchain b56aaec52bc0fa35591a872fb4aac81f606e265c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dwuggh/15-puzzle-helper 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" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 877b47925aa5917058cbcee00db390b3d78715afc027cc767e5bc0fd1914e371
[INFO] running `Command { std: "docker" "start" "-a" "877b47925aa5917058cbcee00db390b3d78715afc027cc767e5bc0fd1914e371", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "877b47925aa5917058cbcee00db390b3d78715afc027cc767e5bc0fd1914e371", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "877b47925aa5917058cbcee00db390b3d78715afc027cc767e5bc0fd1914e371", kill_on_drop: false }`
[INFO] [stdout] 877b47925aa5917058cbcee00db390b3d78715afc027cc767e5bc0fd1914e371
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] add449822ad99b54adff58276a215780900a14d31156005e12facca7c1266601
[INFO] running `Command { std: "docker" "start" "-a" "add449822ad99b54adff58276a215780900a14d31156005e12facca7c1266601", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking os_str_bytes v2.3.2
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[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]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking fifteen-puzzle-helper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Dist`
[INFO] [stdout]  --> src/lib/types.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use traits::{Dist, Wrapper};
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GameBoard`
[INFO] [stdout]  --> src/lib/scrambler.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::types::{Board, GameBoard};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Traditional_A_Star` should have an upper camel case name
[INFO] [stdout]  --> src/lib/solver.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Traditional_A_Star,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TraditionalAStar`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rank_Reduction` should have an upper camel case name
[INFO] [stdout]   --> src/lib/solver.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Rank_Reduction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `RankReduction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Dist`
[INFO] [stdout]  --> src/lib/types.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use traits::{Dist, Wrapper};
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GameBoard`
[INFO] [stdout]  --> src/lib/scrambler.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::types::{Board, GameBoard};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Traditional_A_Star` should have an upper camel case name
[INFO] [stdout]  --> src/lib/solver.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Traditional_A_Star,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TraditionalAStar`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rank_Reduction` should have an upper camel case name
[INFO] [stdout]   --> src/lib/solver.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Rank_Reduction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `RankReduction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]   --> src/main.rs:80:7
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let style = sub_scm.value_of("print-style").unwrap();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `subcmd` is never read
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Opts {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 12 |     #[clap(subcommand)]
[INFO] [stdout] 13 |     subcmd: SubCmd,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `revert` is never used
[INFO] [stdout]   --> src/lib/types/mov.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Move {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 26 |     fn revert(&self) -> Move {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `manhattan_dist` is never used
[INFO] [stdout]   --> src/lib/types/board.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Board {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn manhattan_dist(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_target` is never used
[INFO] [stdout]  --> src/lib/types/traits.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait Wrapper<T: Clone> {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 7 |     fn is_target(&self) -> bool;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Traditional_A_Star` is never constructed
[INFO] [stdout]  --> src/lib/solver.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum SolveMethod {
[INFO] [stdout]   |          ----------- variant in this enum
[INFO] [stdout] 9 |     Traditional_A_Star,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]   --> src/main.rs:80:7
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let style = sub_scm.value_of("print-style").unwrap();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `subcmd` is never read
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Opts {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 12 |     #[clap(subcommand)]
[INFO] [stdout] 13 |     subcmd: SubCmd,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `revert` is never used
[INFO] [stdout]   --> src/lib/types/mov.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Move {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 26 |     fn revert(&self) -> Move {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `manhattan_dist` is never used
[INFO] [stdout]   --> src/lib/types/board.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Board {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn manhattan_dist(&self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_target` is never used
[INFO] [stdout]  --> src/lib/types/traits.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait Wrapper<T: Clone> {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 7 |     fn is_target(&self) -> bool;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Traditional_A_Star` is never constructed
[INFO] [stdout]  --> src/lib/solver.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum SolveMethod {
[INFO] [stdout]   |          ----------- variant in this enum
[INFO] [stdout] 9 |     Traditional_A_Star,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.03s
[INFO] running `Command { std: "docker" "inspect" "add449822ad99b54adff58276a215780900a14d31156005e12facca7c1266601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "add449822ad99b54adff58276a215780900a14d31156005e12facca7c1266601", kill_on_drop: false }`
[INFO] [stdout] add449822ad99b54adff58276a215780900a14d31156005e12facca7c1266601