[INFO] cloning repository https://github.com/trbarrett/mazes-for-programmers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/trbarrett/mazes-for-programmers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrbarrett%2Fmazes-for-programmers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrbarrett%2Fmazes-for-programmers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75d0f290447de227d1645e6267dce93a6d62859e
[INFO] testing trbarrett/mazes-for-programmers against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrbarrett%2Fmazes-for-programmers" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/trbarrett/mazes-for-programmers on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/trbarrett/mazes-for-programmers
[INFO] finished tweaking git repo https://github.com/trbarrett/mazes-for-programmers
[INFO] tweaked toml for git repo https://github.com/trbarrett/mazes-for-programmers written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/trbarrett/mazes-for-programmers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded piston2d-graphics v0.32.0
[INFO] [stderr]   Downloaded pistoncore-window v0.43.0
[INFO] [stderr]   Downloaded piston v0.48.0
[INFO] [stderr]   Downloaded piston-gfx_texture v0.36.0
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.48.0
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.61.0
[INFO] [stderr]   Downloaded rpds v0.7.0
[INFO] [stderr]   Downloaded archery v0.3.0
[INFO] [stderr]   Downloaded piston_window v0.98.0
[INFO] [stderr]   Downloaded piston2d-gfx_graphics v0.61.0
[INFO] [stderr]   Downloaded im v14.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 80484b5884e06b11324604bd2620a42175f37b7b3b813ea12876e651490b1eec
[INFO] running `Command { std: "docker" "start" "-a" "80484b5884e06b11324604bd2620a42175f37b7b3b813ea12876e651490b1eec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80484b5884e06b11324604bd2620a42175f37b7b3b813ea12876e651490b1eec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80484b5884e06b11324604bd2620a42175f37b7b3b813ea12876e651490b1eec", kill_on_drop: false }`
[INFO] [stdout] 80484b5884e06b11324604bd2620a42175f37b7b3b813ea12876e651490b1eec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18c59c4c5f752db88f5e72d7c5fb19a0e0cbdf92fff6ff49520232b6dedc4ec1
[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" "18c59c4c5f752db88f5e72d7c5fb19a0e0cbdf92fff6ff49520232b6dedc4ec1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling piston-float v1.0.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling piston-graphics_api_version v0.2.0
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling piston-texture v0.6.0
[INFO] [stderr]    Compiling interpolation v0.2.0
[INFO] [stderr]    Compiling read_color v1.0.0
[INFO] [stderr]    Compiling piston-shaders_graphics2d v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling piston-viewport v1.0.0
[INFO] [stderr]    Compiling vecmath v1.0.0
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling im v14.2.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling archery v0.3.0
[INFO] [stderr]    Compiling shader_version v0.6.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling draw_state v0.8.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling rpds v0.7.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling bitmaps v2.0.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling rusttype v0.8.2
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling piston2d-graphics v0.32.0
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling wayland-sys v0.21.13
[INFO] [stderr]    Compiling sized-chunks v0.5.1
[INFO] [stderr]    Compiling wayland-commons v0.21.13
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling gfx_core v0.8.3
[INFO] [stderr]    Compiling image v0.21.3
[INFO] [stderr]    Compiling gfx v0.17.1
[INFO] [stderr]    Compiling gfx_device_gl v0.15.5
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.6
[INFO] [stderr]    Compiling piston-gfx_texture v0.36.0
[INFO] [stderr]    Compiling piston2d-gfx_graphics v0.61.0
[INFO] [stderr]    Compiling winit v0.18.1
[INFO] [stderr]    Compiling pistoncore-input v0.28.0
[INFO] [stderr]    Compiling pistoncore-window v0.43.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.48.0
[INFO] [stderr]    Compiling piston v0.48.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.61.0
[INFO] [stderr]    Compiling piston_window v0.98.0
[INFO] [stderr]    Compiling mazes-for-programmers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::slice::Iter`
[INFO] [stdout]  --> src/grid_primitives.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::slice::Iter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mutable_linked_grid::*`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use mutable_linked_grid::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/main.rs:175:21
[INFO] [stdout]     |
[INFO] [stdout] 175 |         if let Some(args) = event.update_args() {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dijkstraStartTime` should have a snake case name
[INFO] [stdout]    --> src/main.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |     let mut dijkstraStartTime: Option<DateTime<Utc>> = None;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `dijkstra_start_time`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 47s
[INFO] running `Command { std: "docker" "inspect" "18c59c4c5f752db88f5e72d7c5fb19a0e0cbdf92fff6ff49520232b6dedc4ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18c59c4c5f752db88f5e72d7c5fb19a0e0cbdf92fff6ff49520232b6dedc4ec1", kill_on_drop: false }`
[INFO] [stdout] 18c59c4c5f752db88f5e72d7c5fb19a0e0cbdf92fff6ff49520232b6dedc4ec1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ecf8d5a112390309deb486d56bebc1caf81d08b52f61cefa6b532bfa3cc906a
[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" "6ecf8d5a112390309deb486d56bebc1caf81d08b52f61cefa6b532bfa3cc906a", kill_on_drop: false }`
[INFO] [stderr]    Compiling mazes-for-programmers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::slice::Iter`
[INFO] [stdout]  --> src/grid_primitives.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::slice::Iter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mutable_linked_grid::*`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use mutable_linked_grid::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/main.rs:175:21
[INFO] [stdout]     |
[INFO] [stdout] 175 |         if let Some(args) = event.update_args() {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dijkstraStartTime` should have a snake case name
[INFO] [stdout]    --> src/main.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 138 |     let mut dijkstraStartTime: Option<DateTime<Utc>> = None;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `dijkstra_start_time`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.98s
[INFO] running `Command { std: "docker" "inspect" "6ecf8d5a112390309deb486d56bebc1caf81d08b52f61cefa6b532bfa3cc906a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ecf8d5a112390309deb486d56bebc1caf81d08b52f61cefa6b532bfa3cc906a", kill_on_drop: false }`
[INFO] [stdout] 6ecf8d5a112390309deb486d56bebc1caf81d08b52f61cefa6b532bfa3cc906a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 36a610ebd5e3256254d7e43ccc97e19060b735ba6e4e032350b89fe56853ab61
[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" "36a610ebd5e3256254d7e43ccc97e19060b735ba6e4e032350b89fe56853ab61", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::slice::Iter`
[INFO] [stderr]  --> src/grid_primitives.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::slice::Iter;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `mutable_linked_grid::*`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use mutable_linked_grid::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]    --> src/main.rs:175:21
[INFO] [stderr]     |
[INFO] [stderr] 175 |         if let Some(args) = event.update_args() {
[INFO] [stderr]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `dijkstraStartTime` should have a snake case name
[INFO] [stderr]    --> src/main.rs:138:13
[INFO] [stderr]     |
[INFO] [stderr] 138 |     let mut dijkstraStartTime: Option<DateTime<Utc>> = None;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `dijkstra_start_time`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mazes_for_programmers-dc85a9a8615d289e
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test dijkstra::test::should_have_all_distances_at_least_up_to_6 ... FAILED
[INFO] [stdout] test dijkstra::test::should_visit_each_pos_in_4x4_grid ... FAILED
[INFO] [stdout] test dijkstra::test::should_visit_each_pos_in_4x8_grid ... FAILED
[INFO] [stdout] test dijkstra::test::should_do_16_steps_in_4x4_grid ... FAILED
[INFO] [stdout] test dijkstra::test::should_visit_each_pos_in_2x2_grid ... FAILED
[INFO] [stdout] test dijkstra::test::should_visit_each_pos_in_8x30_grid ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- dijkstra::test::should_have_all_distances_at_least_up_to_6 stdout ----
[INFO] [stdout] thread 'dijkstra::test::should_have_all_distances_at_least_up_to_6' panicked at 'assertion failed: d.distances.values().any(|&v| v == x)', src/dijkstra.rs:139:13
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5646c4b7cd20 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x5646c4b7cd20 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x5646c4b7cd20 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x5646c4b7cd20 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x5646c4b9f03c - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stdout]    5:     0x5646c4b1cc86 - std::io::Write::write_fmt::h68b2e5fe4c78e61a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stdout]    6:     0x5646c4b7753d - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::he9ebec865e28165c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/impls.rs:179
[INFO] [stdout]    7:     0x5646c4b7f23d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    8:     0x5646c4b7f23d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    9:     0x5646c4b7f23d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stdout]   10:     0x5646c4b7ee92 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:224
[INFO] [stdout]   11:     0x5646c4b7f921 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stdout]   12:     0x5646c4b5c4fc - std::panicking::begin_panic::{{closure}}::hfae50a9014ed3904
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:506
[INFO] [stdout]   13:     0x5646c4b5d3a9 - std::sys_common::backtrace::__rust_end_short_backtrace::haa7164949ddcd9ca
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   14:     0x5646c4b5c427 - std::panicking::begin_panic::h1d4100f0a3d73894
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:505
[INFO] [stdout]   15:     0x5646c4b125f7 - mazes_for_programmers::dijkstra::test::should_have_all_distances_at_least_up_to_6::h0607eb457315a377
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dijkstra.rs:139
[INFO] [stdout]   16:     0x5646c4b1236a - mazes_for_programmers::dijkstra::test::should_have_all_distances_at_least_up_to_6::{{closure}}::h84e928b1d279515a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dijkstra.rs:134
[INFO] [stdout]   17:     0x5646c4b0071e - core::ops::function::FnOnce::call_once::h58e6facec0db6564
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   18:     0x5646c4b43a73 - core::ops::function::FnOnce::call_once::hcd3fa2f0696c1015
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   19:     0x5646c4b43a73 - test::__rust_begin_short_backtrace::h113f97c5e5ab7d4a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:516
[INFO] [stdout]   20:     0x5646c4b41f78 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h01fd09163cae2442
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   21:     0x5646c4b41f78 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0da6b685ae74a04a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   22:     0x5646c4b41f78 - std::panicking::try::do_call::h564a32f132f2c264
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   23:     0x5646c4b41f78 - std::panicking::try::h477cfd4b06a2e64a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   24:     0x5646c4b41f78 - std::panic::catch_unwind::hdb5abc6d008c399d
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   25:     0x5646c4b41f78 - test::run_test_in_process::he8ff7dec91b275be
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:543
[INFO] [stdout]   26:     0x5646c4b41f78 - test::run_test::run_test_inner::{{closure}}::hfd9f49e4a4ff9162
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:449
[INFO] [stdout]   27:     0x5646c4b1c006 - std::sys_common::backtrace::__rust_begin_short_backtrace::hee6d60d5bb466aff
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stdout]   28:     0x5646c4b21175 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h988cecdf9ebbaf00
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:464
[INFO] [stdout]   29:     0x5646c4b21175 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330cf727ec126982
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   30:     0x5646c4b21175 - std::panicking::try::do_call::h6cd25078f4a5ea13
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   31:     0x5646c4b21175 - std::panicking::try::h84b1d49961301705
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   32:     0x5646c4b21175 - std::panic::catch_unwind::h6145324593b3654b
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   33:     0x5646c4b21175 - std::thread::Builder::spawn_unchecked::{{closure}}::ha41e72e8024f9192
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:463
[INFO] [stdout]   34:     0x5646c4b21175 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hfb5034cf1f1be223
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   35:     0x5646c4b8594a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hd4d30e37db281e8f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   36:     0x5646c4b8594a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h019185a215ba16e4
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   37:     0x5646c4b8594a - std::sys::unix::thread::Thread::new::thread_start::h33c6d7cf25f9291f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys/unix/thread.rs:87
[INFO] [stdout]   38:     0x7f6349d68609 - start_thread
[INFO] [stdout]   39:     0x7f634a000103 - clone
[INFO] [stdout]   40:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dijkstra::test::should_visit_each_pos_in_4x4_grid stdout ----
[INFO] [stdout] thread 'dijkstra::test::should_visit_each_pos_in_4x4_grid' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `[GridPos { row: Row(0), col: Col(0) }]`,
[INFO] [stdout]  right: `[GridPos { row: Row(0), col: Col(0) }, GridPos { row: Row(0), col: Col(1) }, GridPos { row: Row(1), col: Col(0) }, GridPos { row: Row(1), col: Col(1) }]`', src/dijkstra.rs:110:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5646c4b7cd20 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x5646c4b7cd20 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x5646c4b7cd20 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x5646c4b7cd20 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x5646c4b9f03c - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stdout]    5:     0x5646c4b1cc86 - std::io::Write::write_fmt::h68b2e5fe4c78e61a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stdout]    6:     0x5646c4b7753d - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::he9ebec865e28165c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/impls.rs:179
[INFO] [stdout]    7:     0x5646c4b7f23d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    8:     0x5646c4b7f23d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    9:     0x5646c4b7f23d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stdout]   10:     0x5646c4b7ee92 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:224
[INFO] [stdout]   11:     0x5646c4b7f921 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stdout]   12:     0x5646c4b7f4c9 - std::panicking::begin_panic_handler::{{closure}}::h8b43445b254eeb30
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:484
[INFO] [stdout]   13:     0x5646c4b7d1ac - std::sys_common::backtrace::__rust_end_short_backtrace::hacd691450edfeae0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   14:     0x5646c4b7f489 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:483
[INFO] [stdout]   15:     0x5646c4b7f43b - std::panicking::begin_panic_fmt::hef75366dd3a9de61
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:437
[INFO] [stdout]   16:     0x5646c4b11a91 - mazes_for_programmers::dijkstra::test::should_visit_each_pos_in_4x4_grid::h2e724b95f5255327
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dijkstra.rs:110
[INFO] [stdout]   17:     0x5646c4b1170a - mazes_for_programmers::dijkstra::test::should_visit_each_pos_in_4x4_grid::{{closure}}::h4e29cb19429c7a90
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dijkstra.rs:104
[INFO] [stdout]   18:     0x5646c4b007ee - core::ops::function::FnOnce::call_once::h90cb19c86febd52b
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   19:     0x5646c4b43a73 - core::ops::function::FnOnce::call_once::hcd3fa2f0696c1015
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   20:     0x5646c4b43a73 - test::__rust_begin_short_backtrace::h113f97c5e5ab7d4a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:516
[INFO] [stdout]   21:     0x5646c4b41f78 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h01fd09163cae2442
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   22:     0x5646c4b41f78 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0da6b685ae74a04a
[INFO] [stderr] error: test failed, to rerun pass '--bin mazes-for-programmers'
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   23:     0x5646c4b41f78 - std::panicking::try::do_call::h564a32f132f2c264
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   24:     0x5646c4b41f78 - std::panicking::try::h477cfd4b06a2e64a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   25:     0x5646c4b41f78 - std::panic::catch_unwind::hdb5abc6d008c399d
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   26:     0x5646c4b41f78 - test::run_test_in_process::he8ff7dec91b275be
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:543
[INFO] [stdout]   27:     0x5646c4b41f78 - test::run_test::run_test_inner::{{closure}}::hfd9f49e4a4ff9162
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:449
[INFO] [stdout]   28:     0x5646c4b1c006 - std::sys_common::backtrace::__rust_begin_short_backtrace::hee6d60d5bb466aff
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stdout]   29:     0x5646c4b21175 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h988cecdf9ebbaf00
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:464
[INFO] [stdout]   30:     0x5646c4b21175 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330cf727ec126982
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   31:     0x5646c4b21175 - std::panicking::try::do_call::h6cd25078f4a5ea13
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   32:     0x5646c4b21175 - std::panicking::try::h84b1d49961301705
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   33:     0x5646c4b21175 - std::panic::catch_unwind::h6145324593b3654b
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   34:     0x5646c4b21175 - std::thread::Builder::spawn_unchecked::{{closure}}::ha41e72e8024f9192
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:463
[INFO] [stdout]   35:     0x5646c4b21175 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hfb5034cf1f1be223
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   36:     0x5646c4b8594a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hd4d30e37db281e8f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   37:     0x5646c4b8594a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h019185a215ba16e4
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   38:     0x5646c4b8594a - std::sys::unix::thread::Thread::new::thread_start::h33c6d7cf25f9291f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys/unix/thread.rs:87
[INFO] [stdout]   39:     0x7f6349d68609 - start_thread
[INFO] [stdout]   40:     0x7f634a000103 - clone
[INFO] [stdout]   41:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dijkstra::test::should_visit_each_pos_in_4x8_grid stdout ----
[INFO] [stdout] thread 'dijkstra::test::should_visit_each_pos_in_4x8_grid' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `[GridPos { row: Row(0), col: Col(0) }]`,
[INFO] [stdout]  right: `[GridPos { row: Row(0), col: Col(0) }, GridPos { row: Row(0), col: Col(1) }, GridPos { row: Row(0), col: Col(2) }, GridPos { row: Row(0), col: Col(3) }, GridPos { row: Row(1), col: Col(0) }, GridPos { row: Row(1), col: Col(1) }, GridPos { row: Row(1), col: Col(2) }, GridPos { row: Row(1), col: Col(3) }, GridPos { row: Row(2), col: Col(0) }, GridPos { row: Row(2), col: Col(1) }, GridPos { row: Row(2), col: Col(2) }, GridPos { row: Row(2), col: Col(3) }, GridPos { row: Row(3), col: Col(0) }, GridPos { row: Row(3), col: Col(1) }, GridPos { row: Row(3), col: Col(2) }, GridPos { row: Row(3), col: Col(3) }, GridPos { row: Row(4), col: Col(0) }, GridPos { row: Row(4), col: Col(1) }, GridPos { row: Row(4), col: Col(2) }, GridPos { row: Row(4), col: Col(3) }, GridPos { row: Row(5), col: Col(0) }, GridPos { row: Row(5), col: Col(1) }, GridPos { row: Row(5), col: Col(2) }, GridPos { row: Row(5), col: Col(3) }, GridPos { row: Row(6), col: Col(0) }, GridPos { row: Row(6), col: Col(1) }, GridPos { row: Row(6), col: Col(2) }, GridPos { row: Row(6), col: Col(3) }, GridPos { row: Row(7), col: Col(0) }, GridPos { row: Row(7), col: Col(1) }, GridPos { row: Row(7), col: Col(2) }, GridPos { row: Row(7), col: Col(3) }]`', src/dijkstra.rs:120:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5646c4b7cd20 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x5646c4b7cd20 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x5646c4b7cd20 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x5646c4b7cd20 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x5646c4b9f03c - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stdout]    5:     0x5646c4b1cc86 - std::io::Write::write_fmt::h68b2e5fe4c78e61a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stdout]    6:     0x5646c4b7753d - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::he9ebec865e28165c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/impls.rs:179
[INFO] [stdout]    7:     0x5646c4b7f23d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    8:     0x5646c4b7f23d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    9:     0x5646c4b7f23d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stdout]   10:     0x5646c4b7ee92 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:224
[INFO] [stdout]   11:     0x5646c4b7f921 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stdout]   12:     0x5646c4b7f4c9 - std::panicking::begin_panic_handler::{{closure}}::h8b43445b254eeb30
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:484
[INFO] [stdout]   13:     0x5646c4b7d1ac - std::sys_common::backtrace::__rust_end_short_backtrace::hacd691450edfeae0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   14:     0x5646c4b7f489 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:483
[INFO] [stdout]   15:     0x5646c4b7f43b - std::panicking::begin_panic_fmt::hef75366dd3a9de61
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:437
[INFO] [stdout]   16:     0x5646c4b11eb0 - mazes_for_programmers::dijkstra::test::should_visit_each_pos_in_4x8_grid::hd583311f74d7175a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dijkstra.rs:120
[INFO] [stdout]   17:     0x5646c4b11b2a - mazes_for_programmers::dijkstra::test::should_visit_each_pos_in_4x8_grid::{{closure}}::hfc8059eade27caa5
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dijkstra.rs:114
[INFO] [stdout]   18:     0x5646c4b008fe - core::ops::function::FnOnce::call_once::hca41862b36cab384
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   19:     0x5646c4b43a73 - core::ops::function::FnOnce::call_once::hcd3fa2f0696c1015
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   20:     0x5646c4b43a73 - test::__rust_begin_short_backtrace::h113f97c5e5ab7d4a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:516
[INFO] [stdout]   21:     0x5646c4b41f78 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h01fd09163cae2442
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   22:     0x5646c4b41f78 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0da6b685ae74a04a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   23:     0x5646c4b41f78 - std::panicking::try::do_call::h564a32f132f2c264
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   24:     0x5646c4b41f78 - std::panicking::try::h477cfd4b06a2e64a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   25:     0x5646c4b41f78 - std::panic::catch_unwind::hdb5abc6d008c399d
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   26:     0x5646c4b41f78 - test::run_test_in_process::he8ff7dec91b275be
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:543
[INFO] [stdout]   27:     0x5646c4b41f78 - test::run_test::run_test_inner::{{closure}}::hfd9f49e4a4ff9162
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:449
[INFO] [stdout]   28:     0x5646c4b1c006 - std::sys_common::backtrace::__rust_begin_short_backtrace::hee6d60d5bb466aff
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stdout]   29:     0x5646c4b21175 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h988cecdf9ebbaf00
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:464
[INFO] [stdout]   30:     0x5646c4b21175 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330cf727ec126982
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   31:     0x5646c4b21175 - std::panicking::try::do_call::h6cd25078f4a5ea13
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   32:     0x5646c4b21175 - std::panicking::try::h84b1d49961301705
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   33:     0x5646c4b21175 - std::panic::catch_unwind::h6145324593b3654b
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   34:     0x5646c4b21175 - std::thread::Builder::spawn_unchecked::{{closure}}::ha41e72e8024f9192
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:463
[INFO] [stdout]   35:     0x5646c4b21175 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hfb5034cf1f1be223
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   36:     0x5646c4b8594a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hd4d30e37db281e8f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   37:     0x5646c4b8594a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h019185a215ba16e4
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   38:     0x5646c4b8594a - std::sys::unix::thread::Thread::new::thread_start::h33c6d7cf25f9291f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys/unix/thread.rs:87
[INFO] [stdout]   39:     0x7f6349d68609 - start_thread
[INFO] [stdout]   40:     0x7f634a000103 - clone
[INFO] [stdout]   41:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dijkstra::test::should_do_16_steps_in_4x4_grid stdout ----
[INFO] [stdout] thread 'dijkstra::test::should_do_16_steps_in_4x4_grid' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `1`,
[INFO] [stdout]  right: `16`', src/dijkstra.rs:90:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5646c4b7cd20 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x5646c4b7cd20 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x5646c4b7cd20 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x5646c4b7cd20 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x5646c4b9f03c - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stdout]    5:     0x5646c4b1cc86 - std::io::Write::write_fmt::h68b2e5fe4c78e61a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stdout]    6:     0x5646c4b7753d - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::he9ebec865e28165c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/impls.rs:179
[INFO] [stdout]    7:     0x5646c4b7f23d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    8:     0x5646c4b7f23d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    9:     0x5646c4b7f23d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stdout]   10:     0x5646c4b7ee92 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:224
[INFO] [stdout]   11:     0x5646c4b7f921 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stdout]   12:     0x5646c4b7f4c9 - std::panicking::begin_panic_handler::{{closure}}::h8b43445b254eeb30
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:484
[INFO] [stdout]   13:     0x5646c4b7d1ac - std::sys_common::backtrace::__rust_end_short_backtrace::hacd691450edfeae0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   14:     0x5646c4b7f489 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:483
[INFO] [stdout]   15:     0x5646c4b7f43b - std::panicking::begin_panic_fmt::hef75366dd3a9de61
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:437
[INFO] [stdout]   16:     0x5646c4b111d6 - mazes_for_programmers::dijkstra::test::should_do_16_steps_in_4x4_grid::h6f71c189c08a2a85
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dijkstra.rs:90
[INFO] [stdout]   17:     0x5646c4b10e4a - mazes_for_programmers::dijkstra::test::should_do_16_steps_in_4x4_grid::{{closure}}::h210addf344c40c0c
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dijkstra.rs:82
[INFO] [stdout]   18:     0x5646c4b0063e - core::ops::function::FnOnce::call_once::h0247991e0b13933e
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   19:     0x5646c4b43a73 - core::ops::function::FnOnce::call_once::hcd3fa2f0696c1015
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   20:     0x5646c4b43a73 - test::__rust_begin_short_backtrace::h113f97c5e5ab7d4a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:516
[INFO] [stdout]   21:     0x5646c4b41f78 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h01fd09163cae2442
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   22:     0x5646c4b41f78 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0da6b685ae74a04a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   23:     0x5646c4b41f78 - std::panicking::try::do_call::h564a32f132f2c264
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   24:     0x5646c4b41f78 - std::panicking::try::h477cfd4b06a2e64a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   25:     0x5646c4b41f78 - std::panic::catch_unwind::hdb5abc6d008c399d
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   26:     0x5646c4b41f78 - test::run_test_in_process::he8ff7dec91b275be
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:543
[INFO] [stdout]   27:     0x5646c4b41f78 - test::run_test::run_test_inner::{{closure}}::hfd9f49e4a4ff9162
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:449
[INFO] [stdout]   28:     0x5646c4b1c006 - std::sys_common::backtrace::__rust_begin_short_backtrace::hee6d60d5bb466aff
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stdout]   29:     0x5646c4b21175 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h988cecdf9ebbaf00
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:464
[INFO] [stdout]   30:     0x5646c4b21175 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330cf727ec126982
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   31:     0x5646c4b21175 - std::panicking::try::do_call::h6cd25078f4a5ea13
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   32:     0x5646c4b21175 - std::panicking::try::h84b1d49961301705
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   33:     0x5646c4b21175 - std::panic::catch_unwind::h6145324593b3654b
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   34:     0x5646c4b21175 - std::thread::Builder::spawn_unchecked::{{closure}}::ha41e72e8024f9192
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:463
[INFO] [stdout]   35:     0x5646c4b21175 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hfb5034cf1f1be223
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   36:     0x5646c4b8594a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hd4d30e37db281e8f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   37:     0x5646c4b8594a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h019185a215ba16e4
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   38:     0x5646c4b8594a - std::sys::unix::thread::Thread::new::thread_start::h33c6d7cf25f9291f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys/unix/thread.rs:87
[INFO] [stdout]   39:     0x7f6349d68609 - start_thread
[INFO] [stdout]   40:     0x7f634a000103 - clone
[INFO] [stdout]   41:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dijkstra::test::should_visit_each_pos_in_2x2_grid stdout ----
[INFO] [stdout] thread 'dijkstra::test::should_visit_each_pos_in_2x2_grid' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `[GridPos { row: Row(0), col: Col(0) }]`,
[INFO] [stdout]  right: `[GridPos { row: Row(0), col: Col(0) }, GridPos { row: Row(0), col: Col(1) }, GridPos { row: Row(1), col: Col(0) }, GridPos { row: Row(1), col: Col(1) }]`', src/dijkstra.rs:100:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5646c4b7cd20 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x5646c4b7cd20 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x5646c4b7cd20 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x5646c4b7cd20 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x5646c4b9f03c - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stdout]    5:     0x5646c4b1cc86 - std::io::Write::write_fmt::h68b2e5fe4c78e61a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stdout]    6:     0x5646c4b7753d - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::he9ebec865e28165c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/impls.rs:179
[INFO] [stdout]    7:     0x5646c4b7f23d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    8:     0x5646c4b7f23d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    9:     0x5646c4b7f23d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stdout]   10:     0x5646c4b7ee92 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:224
[INFO] [stdout]   11:     0x5646c4b7f921 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stdout]   12:     0x5646c4b7f4c9 - std::panicking::begin_panic_handler::{{closure}}::h8b43445b254eeb30
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:484
[INFO] [stdout]   13:     0x5646c4b7d1ac - std::sys_common::backtrace::__rust_end_short_backtrace::hacd691450edfeae0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   14:     0x5646c4b7f489 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:483
[INFO] [stdout]   15:     0x5646c4b7f43b - std::panicking::begin_panic_fmt::hef75366dd3a9de61
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:437
[INFO] [stdout]   16:     0x5646c4b11671 - mazes_for_programmers::dijkstra::test::should_visit_each_pos_in_2x2_grid::h480dbcb184f86618
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dijkstra.rs:100
[INFO] [stdout]   17:     0x5646c4b112ea - mazes_for_programmers::dijkstra::test::should_visit_each_pos_in_2x2_grid::{{closure}}::h4ed386e29a9e5894
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dijkstra.rs:94
[INFO] [stdout]   18:     0x5646c4b006ee - core::ops::function::FnOnce::call_once::h4d0e3eeb59bd21ac
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   19:     0x5646c4b43a73 - core::ops::function::FnOnce::call_once::hcd3fa2f0696c1015
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   20:     0x5646c4b43a73 - test::__rust_begin_short_backtrace::h113f97c5e5ab7d4a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:516
[INFO] [stdout]   21:     0x5646c4b41f78 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h01fd09163cae2442
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   22:     0x5646c4b41f78 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0da6b685ae74a04a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   23:     0x5646c4b41f78 - std::panicking::try::do_call::h564a32f132f2c264
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   24:     0x5646c4b41f78 - std::panicking::try::h477cfd4b06a2e64a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   25:     0x5646c4b41f78 - std::panic::catch_unwind::hdb5abc6d008c399d
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   26:     0x5646c4b41f78 - test::run_test_in_process::he8ff7dec91b275be
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:543
[INFO] [stdout]   27:     0x5646c4b41f78 - test::run_test::run_test_inner::{{closure}}::hfd9f49e4a4ff9162
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:449
[INFO] [stdout]   28:     0x5646c4b1c006 - std::sys_common::backtrace::__rust_begin_short_backtrace::hee6d60d5bb466aff
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stdout]   29:     0x5646c4b21175 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h988cecdf9ebbaf00
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:464
[INFO] [stdout]   30:     0x5646c4b21175 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330cf727ec126982
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   31:     0x5646c4b21175 - std::panicking::try::do_call::h6cd25078f4a5ea13
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   32:     0x5646c4b21175 - std::panicking::try::h84b1d49961301705
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   33:     0x5646c4b21175 - std::panic::catch_unwind::h6145324593b3654b
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   34:     0x5646c4b21175 - std::thread::Builder::spawn_unchecked::{{closure}}::ha41e72e8024f9192
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:463
[INFO] [stdout]   35:     0x5646c4b21175 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hfb5034cf1f1be223
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   36:     0x5646c4b8594a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hd4d30e37db281e8f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   37:     0x5646c4b8594a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h019185a215ba16e4
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   38:     0x5646c4b8594a - std::sys::unix::thread::Thread::new::thread_start::h33c6d7cf25f9291f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys/unix/thread.rs:87
[INFO] [stdout]   39:     0x7f6349d68609 - start_thread
[INFO] [stdout]   40:     0x7f634a000103 - clone
[INFO] [stdout]   41:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dijkstra::test::should_visit_each_pos_in_8x30_grid stdout ----
[INFO] [stdout] thread 'dijkstra::test::should_visit_each_pos_in_8x30_grid' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `[GridPos { row: Row(0), col: Col(0) }]`,
[INFO] [stdout]  right: `[GridPos { row: Row(0), col: Col(0) }, GridPos { row: Row(0), col: Col(1) }, GridPos { row: Row(0), col: Col(2) }, GridPos { row: Row(0), col: Col(3) }, GridPos { row: Row(0), col: Col(4) }, GridPos { row: Row(0), col: Col(5) }, GridPos { row: Row(0), col: Col(6) }, GridPos { row: Row(0), col: Col(7) }, GridPos { row: Row(1), col: Col(0) }, GridPos { row: Row(1), col: Col(1) }, GridPos { row: Row(1), col: Col(2) }, GridPos { row: Row(1), col: Col(3) }, GridPos { row: Row(1), col: Col(4) }, GridPos { row: Row(1), col: Col(5) }, GridPos { row: Row(1), col: Col(6) }, GridPos { row: Row(1), col: Col(7) }, GridPos { row: Row(2), col: Col(0) }, GridPos { row: Row(2), col: Col(1) }, GridPos { row: Row(2), col: Col(2) }, GridPos { row: Row(2), col: Col(3) }, GridPos { row: Row(2), col: Col(4) }, GridPos { row: Row(2), col: Col(5) }, GridPos { row: Row(2), col: Col(6) }, GridPos { row: Row(2), col: Col(7) }, GridPos { row: Row(3), col: Col(0) }, GridPos { row: Row(3), col: Col(1) }, GridPos { row: Row(3), col: Col(2) }, GridPos { row: Row(3), col: Col(3) }, GridPos { row: Row(3), col: Col(4) }, GridPos { row: Row(3), col: Col(5) }, GridPos { row: Row(3), col: Col(6) }, GridPos { row: Row(3), col: Col(7) }, GridPos { row: Row(4), col: Col(0) }, GridPos { row: Row(4), col: Col(1) }, GridPos { row: Row(4), col: Col(2) }, GridPos { row: Row(4), col: Col(3) }, GridPos { row: Row(4), col: Col(4) }, GridPos { row: Row(4), col: Col(5) }, GridPos { row: Row(4), col: Col(6) }, GridPos { row: Row(4), col: Col(7) }, GridPos { row: Row(5), col: Col(0) }, GridPos { row: Row(5), col: Col(1) }, GridPos { row: Row(5), col: Col(2) }, GridPos { row: Row(5), col: Col(3) }, GridPos { row: Row(5), col: Col(4) }, GridPos { row: Row(5), col: Col(5) }, GridPos { row: Row(5), col: Col(6) }, GridPos { row: Row(5), col: Col(7) }, GridPos { row: Row(6), col: Col(0) }, GridPos { row: Row(6), col: Col(1) }, GridPos { row: Row(6), col: Col(2) }, GridPos { row: Row(6), col: Col(3) }, GridPos { row: Row(6), col: Col(4) }, GridPos { row: Row(6), col: Col(5) }, GridPos { row: Row(6), col: Col(6) }, GridPos { row: Row(6), col: Col(7) }, GridPos { row: Row(7), col: Col(0) }, GridPos { row: Row(7), col: Col(1) }, GridPos { row: Row(7), col: Col(2) }, GridPos { row: Row(7), col: Col(3) }, GridPos { row: Row(7), col: Col(4) }, GridPos { row: Row(7), col: Col(5) }, GridPos { row: Row(7), col: Col(6) }, GridPos { row: Row(7), col: Col(7) }, GridPos { row: Row(8), col: Col(0) }, GridPos { row: Row(8), col: Col(1) }, GridPos { row: Row(8), col: Col(2) }, GridPos { row: Row(8), col: Col(3) }, GridPos { row: Row(8), col: Col(4) }, GridPos { row: Row(8), col: Col(5) }, GridPos { row: Row(8), col: Col(6) }, GridPos { row: Row(8), col: Col(7) }, GridPos { row: Row(9), col: Col(0) }, GridPos { row: Row(9), col: Col(1) }, GridPos { row: Row(9), col: Col(2) }, GridPos { row: Row(9), col: Col(3) }, GridPos { row: Row(9), col: Col(4) }, GridPos { row: Row(9), col: Col(5) }, GridPos { row: Row(9), col: Col(6) }, GridPos { row: Row(9), col: Col(7) }, GridPos { row: Row(10), col: Col(0) }, GridPos { row: Row(10), col: Col(1) }, GridPos { row: Row(10), col: Col(2) }, GridPos { row: Row(10), col: Col(3) }, GridPos { row: Row(10), col: Col(4) }, GridPos { row: Row(10), col: Col(5) }, GridPos { row: Row(10), col: Col(6) }, GridPos { row: Row(10), col: Col(7) }, GridPos { row: Row(11), col: Col(0) }, GridPos { row: Row(11), col: Col(1) }, GridPos { row: Row(11), col: Col(2) }, GridPos { row: Row(11), col: Col(3) }, GridPos { row: Row(11), col: Col(4) }, GridPos { row: Row(11), col: Col(5) }, GridPos { row: Row(11), col: Col(6) }, GridPos { row: Row(11), col: Col(7) }, GridPos { row: Row(12), col: Col(0) }, GridPos { row: Row(12), col: Col(1) }, GridPos { row: Row(12), col: Col(2) }, GridPos { row: Row(12), col: Col(3) }, GridPos { row: Row(12), col: Col(4) }, GridPos { row: Row(12), col: Col(5) }, GridPos { row: Row(12), col: Col(6) }, GridPos { row: Row(12), col: Col(7) }, GridPos { row: Row(13), col: Col(0) }, GridPos { row: Row(13), col: Col(1) }, GridPos { row: Row(13), col: Col(2) }, GridPos { row: Row(13), col: Col(3) }, GridPos { row: Row(13), col: Col(4) }, GridPos { row: Row(13), col: Col(5) }, GridPos { row: Row(13), col: Col(6) }, GridPos { row: Row(13), col: Col(7) }, GridPos { row: Row(14), col: Col(0) }, GridPos { row: Row(14), col: Col(1) }, GridPos { row: Row(14), col: Col(2) }, GridPos { row: Row(14), col: Col(3) }, GridPos { row: Row(14), col: Col(4) }, GridPos { row: Row(14), col: Col(5) }, GridPos { row: Row(14), col: Col(6) }, GridPos { row: Row(14), col: Col(7) }, GridPos { row: Row(15), col: Col(0) }, GridPos { row: Row(15), col: Col(1) }, GridPos { row: Row(15), col: Col(2) }, GridPos { row: Row(15), col: Col(3) }, GridPos { row: Row(15), col: Col(4) }, GridPos { row: Row(15), col: Col(5) }, GridPos { row: Row(15), col: Col(6) }, GridPos { row: Row(15), col: Col(7) }, GridPos { row: Row(16), col: Col(0) }, GridPos { row: Row(16), col: Col(1) }, GridPos { row: Row(16), col: Col(2) }, GridPos { row: Row(16), col: Col(3) }, GridPos { row: Row(16), col: Col(4) }, GridPos { row: Row(16), col: Col(5) }, GridPos { row: Row(16), col: Col(6) }, GridPos { row: Row(16), col: Col(7) }, GridPos { row: Row(17), col: Col(0) }, GridPos { row: Row(17), col: Col(1) }, GridPos { row: Row(17), col: Col(2) }, GridPos { row: Row(17), col: Col(3) }, GridPos { row: Row(17), col: Col(4) }, GridPos { row: Row(17), col: Col(5) }, GridPos { row: Row(17), col: Col(6) }, GridPos { row: Row(17), col: Col(7) }, GridPos { row: Row(18), col: Col(0) }, GridPos { row: Row(18), col: Col(1) }, GridPos { row: Row(18), col: Col(2) }, GridPos { row: Row(18), col: Col(3) }, GridPos { row: Row(18), col: Col(4) }, GridPos { row: Row(18), col: Col(5) }, GridPos { row: Row(18), col: Col(6) }, GridPos { row: Row(18), col: Col(7) }, GridPos { row: Row(19), col: Col(0) }, GridPos { row: Row(19), col: Col(1) }, GridPos { row: Row(19), col: Col(2) }, GridPos { row: Row(19), col: Col(3) }, GridPos { row: Row(19), col: Col(4) }, GridPos { row: Row(19), col: Col(5) }, GridPos { row: Row(19), col: Col(6) }, GridPos { row: Row(19), col: Col(7) }, GridPos { row: Row(20), col: Col(0) }, GridPos { row: Row(20), col: Col(1) }, GridPos { row: Row(20), col: Col(2) }, GridPos { row: Row(20), col: Col(3) }, GridPos { row: Row(20), col: Col(4) }, GridPos { row: Row(20), col: Col(5) }, GridPos { row: Row(20), col: Col(6) }, GridPos { row: Row(20), col: Col(7) }, GridPos { row: Row(21), col: Col(0) }, GridPos { row: Row(21), col: Col(1) }, GridPos { row: Row(21), col: Col(2) }, GridPos { row: Row(21), col: Col(3) }, GridPos { row: Row(21), col: Col(4) }, GridPos { row: Row(21), col: Col(5) }, GridPos { row: Row(21), col: Col(6) }, GridPos { row: Row(21), col: Col(7) }, GridPos { row: Row(22), col: Col(0) }, GridPos { row: Row(22), col: Col(1) }, GridPos { row: Row(22), col: Col(2) }, GridPos { row: Row(22), col: Col(3) }, GridPos { row: Row(22), col: Col(4) }, GridPos { row: Row(22), col: Col(5) }, GridPos { row: Row(22), col: Col(6) }, GridPos { row: Row(22), col: Col(7) }, GridPos { row: Row(23), col: Col(0) }, GridPos { row: Row(23), col: Col(1) }, GridPos { row: Row(23), col: Col(2) }, GridPos { row: Row(23), col: Col(3) }, GridPos { row: Row(23), col: Col(4) }, GridPos { row: Row(23), col: Col(5) }, GridPos { row: Row(23), col: Col(6) }, GridPos { row: Row(23), col: Col(7) }, GridPos { row: Row(24), col: Col(0) }, GridPos { row: Row(24), col: Col(1) }, GridPos { row: Row(24), col: Col(2) }, GridPos { row: Row(24), col: Col(3) }, GridPos { row: Row(24), col: Col(4) }, GridPos { row: Row(24), col: Col(5) }, GridPos { row: Row(24), col: Col(6) }, GridPos { row: Row(24), col: Col(7) }, GridPos { row: Row(25), col: Col(0) }, GridPos { row: Row(25), col: Col(1) }, GridPos { row: Row(25), col: Col(2) }, GridPos { row: Row(25), col: Col(3) }, GridPos { row: Row(25), col: Col(4) }, GridPos { row: Row(25), col: Col(5) }, GridPos { row: Row(25), col: Col(6) }, GridPos { row: Row(25), col: Col(7) }, GridPos { row: Row(26), col: Col(0) }, GridPos { row: Row(26), col: Col(1) }, GridPos { row: Row(26), col: Col(2) }, GridPos { row: Row(26), col: Col(3) }, GridPos { row: Row(26), col: Col(4) }, GridPos { row: Row(26), col: Col(5) }, GridPos { row: Row(26), col: Col(6) }, GridPos { row: Row(26), col: Col(7) }, GridPos { row: Row(27), col: Col(0) }, GridPos { row: Row(27), col: Col(1) }, GridPos { row: Row(27), col: Col(2) }, GridPos { row: Row(27), col: Col(3) }, GridPos { row: Row(27), col: Col(4) }, GridPos { row: Row(27), col: Col(5) }, GridPos { row: Row(27), col: Col(6) }, GridPos { row: Row(27), col: Col(7) }, GridPos { row: Row(28), col: Col(0) }, GridPos { row: Row(28), col: Col(1) }, GridPos { row: Row(28), col: Col(2) }, GridPos { row: Row(28), col: Col(3) }, GridPos { row: Row(28), col: Col(4) }, GridPos { row: Row(28), col: Col(5) }, GridPos { row: Row(28), col: Col(6) }, GridPos { row: Row(28), col: Col(7) }, GridPos { row: Row(29), col: Col(0) }, GridPos { row: Row(29), col: Col(1) }, GridPos { row: Row(29), col: Col(2) }, GridPos { row: Row(29), col: Col(3) }, GridPos { row: Row(29), col: Col(4) }, GridPos { row: Row(29), col: Col(5) }, GridPos { row: Row(29), col: Col(6) }, GridPos { row: Row(29), col: Col(7) }]`', src/dijkstra.rs:130:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5646c4b7cd20 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x5646c4b7cd20 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x5646c4b7cd20 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x5646c4b7cd20 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x5646c4b9f03c - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stdout]    5:     0x5646c4b1cc86 - std::io::Write::write_fmt::h68b2e5fe4c78e61a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stdout]    6:     0x5646c4b7753d - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::he9ebec865e28165c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/impls.rs:179
[INFO] [stdout]    7:     0x5646c4b7f23d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    8:     0x5646c4b7f23d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    9:     0x5646c4b7f23d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stdout]   10:     0x5646c4b7ee92 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:224
[INFO] [stdout]   11:     0x5646c4b7f921 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stdout]   12:     0x5646c4b7f4c9 - std::panicking::begin_panic_handler::{{closure}}::h8b43445b254eeb30
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:484
[INFO] [stdout]   13:     0x5646c4b7d1ac - std::sys_common::backtrace::__rust_end_short_backtrace::hacd691450edfeae0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   14:     0x5646c4b7f489 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:483
[INFO] [stdout]   15:     0x5646c4b7f43b - std::panicking::begin_panic_fmt::hef75366dd3a9de61
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:437
[INFO] [stdout]   16:     0x5646c4b122d0 - mazes_for_programmers::dijkstra::test::should_visit_each_pos_in_8x30_grid::haf65777db244e83e
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dijkstra.rs:130
[INFO] [stdout]   17:     0x5646c4b11f4a - mazes_for_programmers::dijkstra::test::should_visit_each_pos_in_8x30_grid::{{closure}}::h3db3e1263ab758bf
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dijkstra.rs:124
[INFO] [stdout]   18:     0x5646c4b0066e - core::ops::function::FnOnce::call_once::h1206e6b4399cabc3
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   19:     0x5646c4b43a73 - core::ops::function::FnOnce::call_once::hcd3fa2f0696c1015
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   20:     0x5646c4b43a73 - test::__rust_begin_short_backtrace::h113f97c5e5ab7d4a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:516
[INFO] [stdout]   21:     0x5646c4b41f78 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h01fd09163cae2442
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   22:     0x5646c4b41f78 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0da6b685ae74a04a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   23:     0x5646c4b41f78 - std::panicking::try::do_call::h564a32f132f2c264
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   24:     0x5646c4b41f78 - std::panicking::try::h477cfd4b06a2e64a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   25:     0x5646c4b41f78 - std::panic::catch_unwind::hdb5abc6d008c399d
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   26:     0x5646c4b41f78 - test::run_test_in_process::he8ff7dec91b275be
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:543
[INFO] [stdout]   27:     0x5646c4b41f78 - test::run_test::run_test_inner::{{closure}}::hfd9f49e4a4ff9162
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:449
[INFO] [stdout]   28:     0x5646c4b1c006 - std::sys_common::backtrace::__rust_begin_short_backtrace::hee6d60d5bb466aff
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stdout]   29:     0x5646c4b21175 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h988cecdf9ebbaf00
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:464
[INFO] [stdout]   30:     0x5646c4b21175 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330cf727ec126982
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   31:     0x5646c4b21175 - std::panicking::try::do_call::h6cd25078f4a5ea13
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   32:     0x5646c4b21175 - std::panicking::try::h84b1d49961301705
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   33:     0x5646c4b21175 - std::panic::catch_unwind::h6145324593b3654b
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   34:     0x5646c4b21175 - std::thread::Builder::spawn_unchecked::{{closure}}::ha41e72e8024f9192
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:463
[INFO] [stdout]   35:     0x5646c4b21175 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hfb5034cf1f1be223
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   36:     0x5646c4b8594a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hd4d30e37db281e8f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   37:     0x5646c4b8594a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h019185a215ba16e4
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   38:     0x5646c4b8594a - std::sys::unix::thread::Thread::new::thread_start::h33c6d7cf25f9291f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys/unix/thread.rs:87
[INFO] [stdout]   39:     0x7f6349d68609 - start_thread
[INFO] [stdout]   40:     0x7f634a000103 - clone
[INFO] [stdout]   41:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     dijkstra::test::should_do_16_steps_in_4x4_grid
[INFO] [stdout]     dijkstra::test::should_have_all_distances_at_least_up_to_6
[INFO] [stdout]     dijkstra::test::should_visit_each_pos_in_2x2_grid
[INFO] [stdout]     dijkstra::test::should_visit_each_pos_in_4x4_grid
[INFO] [stdout]     dijkstra::test::should_visit_each_pos_in_4x8_grid
[INFO] [stdout]     dijkstra::test::should_visit_each_pos_in_8x30_grid
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 6 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "36a610ebd5e3256254d7e43ccc97e19060b735ba6e4e032350b89fe56853ab61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36a610ebd5e3256254d7e43ccc97e19060b735ba6e4e032350b89fe56853ab61", kill_on_drop: false }`
[INFO] [stdout] 36a610ebd5e3256254d7e43ccc97e19060b735ba6e4e032350b89fe56853ab61
