[INFO] cloning repository https://github.com/newmancodes/ferris-mcclane
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/newmancodes/ferris-mcclane" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnewmancodes%2Fferris-mcclane", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnewmancodes%2Fferris-mcclane'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf8188f6217700977c35922f395a733c35328e98
[INFO] checking newmancodes/ferris-mcclane against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnewmancodes%2Fferris-mcclane" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/newmancodes/ferris-mcclane on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/newmancodes/ferris-mcclane
[INFO] finished tweaking git repo https://github.com/newmancodes/ferris-mcclane
[INFO] tweaked toml for git repo https://github.com/newmancodes/ferris-mcclane written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/newmancodes/ferris-mcclane already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c9387a8455465ab8d426977bf0244068e71e3f9a5bde9a812a283e7a11f0c2d
[INFO] running `Command { std: "docker" "start" "-a" "7c9387a8455465ab8d426977bf0244068e71e3f9a5bde9a812a283e7a11f0c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c9387a8455465ab8d426977bf0244068e71e3f9a5bde9a812a283e7a11f0c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c9387a8455465ab8d426977bf0244068e71e3f9a5bde9a812a283e7a11f0c2d", kill_on_drop: false }`
[INFO] [stdout] 7c9387a8455465ab8d426977bf0244068e71e3f9a5bde9a812a283e7a11f0c2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e17ae3980f65530cf77eee6b3dad536ca140cfe41c9d294a05fca94f11837b32
[INFO] running `Command { std: "docker" "start" "-a" "e17ae3980f65530cf77eee6b3dad536ca140cfe41c9d294a05fca94f11837b32", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ferris-mcclane v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/iterative_deepening_solver.rs (4 fixes)
[INFO] [stdout] warning: field is never read: `parent`
[INFO] [stdout]   --> src/bucket_puzzle.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     parent: Option<&'a BucketPuzzle<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_goal_state`
[INFO] [stdout]   --> src/bucket_puzzle.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn is_goal_state(&'a self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `IterativeDeepeningSolver`
[INFO] [stdout]  --> src/iterative_deepening_solver.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct IterativeDeepeningSolver<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/iterative_deepening_solver.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(initial_state: BucketPuzzle<'a>, search_depth_limit: u8) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve`
[INFO] [stdout]   --> src/iterative_deepening_solver.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn solve(self) -> Option<&'a BucketPuzzle<'a>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent`
[INFO] [stdout]   --> src/bucket_puzzle.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     parent: Option<&'a BucketPuzzle<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_goal_state`
[INFO] [stdout]   --> src/bucket_puzzle.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn is_goal_state(&'a self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `IterativeDeepeningSolver`
[INFO] [stdout]  --> src/iterative_deepening_solver.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct IterativeDeepeningSolver<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/iterative_deepening_solver.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(initial_state: BucketPuzzle<'a>, search_depth_limit: u8) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve`
[INFO] [stdout]   --> src/iterative_deepening_solver.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn solve(self) -> Option<&'a BucketPuzzle<'a>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.36s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ferris-mcclane v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: field is never read: `parent`
[INFO] [stdout]   --> src/bucket_puzzle.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     parent: Option<&'a BucketPuzzle<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_goal_state`
[INFO] [stdout]   --> src/bucket_puzzle.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn is_goal_state(&'a self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `IterativeDeepeningSolver`
[INFO] [stdout]  --> src/iterative_deepening_solver.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct IterativeDeepeningSolver<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/iterative_deepening_solver.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(initial_state: BucketPuzzle<'a>, search_depth_limit: u8) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve`
[INFO] [stdout]   --> src/iterative_deepening_solver.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn solve(self) -> Option<&'a BucketPuzzle<'a>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent`
[INFO] [stdout]   --> src/bucket_puzzle.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     parent: Option<&'a BucketPuzzle<'a>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_goal_state`
[INFO] [stdout]   --> src/bucket_puzzle.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn is_goal_state(&'a self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `IterativeDeepeningSolver`
[INFO] [stdout]  --> src/iterative_deepening_solver.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct IterativeDeepeningSolver<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/iterative_deepening_solver.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(initial_state: BucketPuzzle<'a>, search_depth_limit: u8) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve`
[INFO] [stdout]   --> src/iterative_deepening_solver.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn solve(self) -> Option<&'a BucketPuzzle<'a>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.42s
[INFO] running `Command { std: "docker" "inspect" "e17ae3980f65530cf77eee6b3dad536ca140cfe41c9d294a05fca94f11837b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e17ae3980f65530cf77eee6b3dad536ca140cfe41c9d294a05fca94f11837b32", kill_on_drop: false }`
[INFO] [stdout] e17ae3980f65530cf77eee6b3dad536ca140cfe41c9d294a05fca94f11837b32