[INFO] updating cached repository https://github.com/dasdy/maze-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 23e86b756fce88d03780011353afb16d95d85e94
[INFO] checking dasdy/maze-rs against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdasdy%2Fmaze-rs" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dasdy/maze-rs on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dasdy/maze-rs
[INFO] finished tweaking git repo https://github.com/dasdy/maze-rs
[INFO] tweaked toml for git repo https://github.com/dasdy/maze-rs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/dasdy/maze-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 528eca2fc1ea08077afd1bda78278b324c89731ba3df9a910ba870a357288f33
[INFO] running `"docker" "start" "-a" "528eca2fc1ea08077afd1bda78278b324c89731ba3df9a910ba870a357288f33"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling glib-sys v0.8.0
[INFO] [stderr]    Compiling gobject-sys v0.8.0
[INFO] [stderr]    Compiling gio-sys v0.8.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.8.0
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[INFO] [stderr]    Compiling cairo-sys-rs v0.8.0
[INFO] [stderr]    Compiling gdk-sys v0.8.0
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[INFO] [stderr]    Compiling gtk-sys v0.8.0
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking rayon-core v1.5.0
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[INFO] [stderr]    Compiling cairo-rs v0.6.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.6.0
[INFO] [stderr]    Compiling gdk v0.10.0
[INFO] [stderr]    Compiling gtk v0.6.0
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking glib v0.7.1
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.2
[INFO] [stderr]     Checking imageproc v0.18.0
[INFO] [stderr]     Checking rust-mazes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/polar.rs:126:95
[INFO] [stderr]     |
[INFO] [stderr] 126 |                 let cw = if j == cell_count - 1 {cells_in_row[0] } else {current_cell_id + 1};;
[INFO] [stderr]     |                                                                                               ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/generate.rs:16:45
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn binary_tree<U: AbstractCell>(g: &mut CompassGrid<U>, mut r: &mut rand::rngs::ThreadRng) {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^ help: use `dyn`: `dyn CompassGrid<U>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/generate.rs:52:47
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn aldous_broder<T: AbstractCell>(g: &mut AbstractGrid<T>, r: &mut rand::rngs::ThreadRng) {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/generate.rs:73:45
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn unvisited_neighbors<T: AbstractCell>(g: &AbstractGrid<T>, cell_idx: usize) -> Vec<usize> {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/generate.rs:78:43
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn visited_neighbors<T: AbstractCell>(g: &AbstractGrid<T>, cell_idx: usize) -> Vec<usize> {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/generate.rs:84:47
[INFO] [stderr]    |
[INFO] [stderr] 84 | pub fn hunt_and_kill<T: AbstractCell>(g: &mut AbstractGrid<T>, r: &mut rand::rngs::ThreadRng) {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generate.rs:109:55
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub fn recursive_backtracker<T: AbstractCell>(g: &mut AbstractGrid<T>, r: &mut rand::rngs::ThreadRng) {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/solve.rs:36:41
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn initial<T: AbstractCell>(g: &AbstractGrid<T>, start: usize) -> DijkstraStep {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/solve.rs:55:50
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn next_step<T: AbstractCell>(&self, g: &AbstractGrid<T>) -> DijkstraStep {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/solve.rs:73:53
[INFO] [stderr]    |
[INFO] [stderr] 73 | pub fn solve_with_longest_path<T: AbstractCell>(g: &AbstractGrid<T>) -> DijkstraStep {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/polar.rs:126:95
[INFO] [stderr]     |
[INFO] [stderr] 126 |                 let cw = if j == cell_count - 1 {cells_in_row[0] } else {current_cell_id + 1};;
[INFO] [stderr]     |                                                                                               ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/generate.rs:16:45
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn binary_tree<U: AbstractCell>(g: &mut CompassGrid<U>, mut r: &mut rand::rngs::ThreadRng) {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^ help: use `dyn`: `dyn CompassGrid<U>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/generate.rs:52:47
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn aldous_broder<T: AbstractCell>(g: &mut AbstractGrid<T>, r: &mut rand::rngs::ThreadRng) {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/generate.rs:73:45
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn unvisited_neighbors<T: AbstractCell>(g: &AbstractGrid<T>, cell_idx: usize) -> Vec<usize> {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/generate.rs:78:43
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn visited_neighbors<T: AbstractCell>(g: &AbstractGrid<T>, cell_idx: usize) -> Vec<usize> {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/generate.rs:84:47
[INFO] [stderr]    |
[INFO] [stderr] 84 | pub fn hunt_and_kill<T: AbstractCell>(g: &mut AbstractGrid<T>, r: &mut rand::rngs::ThreadRng) {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generate.rs:109:55
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub fn recursive_backtracker<T: AbstractCell>(g: &mut AbstractGrid<T>, r: &mut rand::rngs::ThreadRng) {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/solve.rs:36:41
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn initial<T: AbstractCell>(g: &AbstractGrid<T>, start: usize) -> DijkstraStep {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/solve.rs:55:50
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn next_step<T: AbstractCell>(&self, g: &AbstractGrid<T>) -> DijkstraStep {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/solve.rs:73:53
[INFO] [stderr]    |
[INFO] [stderr] 73 | pub fn solve_with_longest_path<T: AbstractCell>(g: &AbstractGrid<T>) -> DijkstraStep {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AbstractGrid<T>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 08s
[INFO] running `"docker" "inspect" "528eca2fc1ea08077afd1bda78278b324c89731ba3df9a910ba870a357288f33"`
[INFO] running `"docker" "rm" "-f" "528eca2fc1ea08077afd1bda78278b324c89731ba3df9a910ba870a357288f33"`
[INFO] [stdout] 528eca2fc1ea08077afd1bda78278b324c89731ba3df9a910ba870a357288f33