[INFO] cloning repository https://github.com/cambyse/cross_me_solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cambyse/cross_me_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcambyse%2Fcross_me_solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcambyse%2Fcross_me_solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e807cb87adbeba45f63e225013818a7f25cf454a
[INFO] testing cambyse/cross_me_solver against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcambyse%2Fcross_me_solver" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cambyse/cross_me_solver on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cambyse/cross_me_solver
[INFO] finished tweaking git repo https://github.com/cambyse/cross_me_solver
[INFO] tweaked toml for git repo https://github.com/cambyse/cross_me_solver written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cambyse/cross_me_solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 216e226443c195895822a26c92b55f83d0586e8ebf409bed270528b3f764860a
[INFO] running `Command { std: "docker" "start" "-a" "216e226443c195895822a26c92b55f83d0586e8ebf409bed270528b3f764860a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "216e226443c195895822a26c92b55f83d0586e8ebf409bed270528b3f764860a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "216e226443c195895822a26c92b55f83d0586e8ebf409bed270528b3f764860a", kill_on_drop: false }`
[INFO] [stdout] 216e226443c195895822a26c92b55f83d0586e8ebf409bed270528b3f764860a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 387eb5aacc80a4157e503f993eca5109713e576a1f33636f3663e686324a0847
[INFO] running `Command { std: "docker" "start" "-a" "387eb5aacc80a4157e503f993eca5109713e576a1f33636f3663e686324a0847", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling ndarray v0.15.3
[INFO] [stderr]    Compiling cross_me_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::prelude::*`
[INFO] [stdout]  --> src/problems.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ndarray::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Debug`
[INFO] [stdout]  --> src/problems.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::Debug;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec::Vec`
[INFO] [stdout]  --> src/problems.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/problems.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:129:55
[INFO] [stdout]     |
[INFO] [stdout] 129 |             (0, 1) => { n_filled+=1; islands.push(1); last = state[i]},
[INFO] [stdout]     |                                                       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:130:26
[INFO] [stdout]     |
[INFO] [stdout] 130 |             (0, -1) => { last = state[i]; },
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:132:72
[INFO] [stdout]     |
[INFO] [stdout] 132 |             (1, 1) => { n_filled +=1; *islands.last_mut().unwrap()+=1; last = state[i];},
[INFO] [stdout]     |                                                                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:133:26
[INFO] [stdout]     |
[INFO] [stdout] 133 |             (1, -1) => { last = state[i]; },
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:134:56
[INFO] [stdout]     |
[INFO] [stdout] 134 |             (-1, 1) => { n_filled+=1; islands.push(1); last = state[i]; },
[INFO] [stdout]     |                                                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:136:27
[INFO] [stdout]     |
[INFO] [stdout] 136 |             (-1, -1) => { last = state[i];},
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/solver.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | impl Features {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 85 |     fn new(n_filled: usize, islands: Vec<usize>, n_unknown:usize) -> Features {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ortho_state` and `ortho_features` are never read
[INFO] [stdout]    --> src/solver.rs:99:5
[INFO] [stdout]     |
[INFO] [stdout] 94  | struct Node {
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 99  |     ortho_state: Vec<i8>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     ortho_features: Features
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_node` is never used
[INFO] [stdout]    --> src/solver.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn print_node(node: &Node) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.00s
[INFO] running `Command { std: "docker" "inspect" "387eb5aacc80a4157e503f993eca5109713e576a1f33636f3663e686324a0847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "387eb5aacc80a4157e503f993eca5109713e576a1f33636f3663e686324a0847", kill_on_drop: false }`
[INFO] [stdout] 387eb5aacc80a4157e503f993eca5109713e576a1f33636f3663e686324a0847
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5004a993609a6418471881deb1a12a260f1713dcd9d87b8411ab46ac27a82119
[INFO] running `Command { std: "docker" "start" "-a" "5004a993609a6418471881deb1a12a260f1713dcd9d87b8411ab46ac27a82119", kill_on_drop: false }`
[INFO] [stderr]    Compiling cross_me_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::prelude::*`
[INFO] [stdout]  --> src/problems.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ndarray::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Debug`
[INFO] [stdout]  --> src/problems.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::Debug;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec::Vec`
[INFO] [stdout]  --> src/problems.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/problems.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:129:55
[INFO] [stdout]     |
[INFO] [stdout] 129 |             (0, 1) => { n_filled+=1; islands.push(1); last = state[i]},
[INFO] [stdout]     |                                                       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:130:26
[INFO] [stdout]     |
[INFO] [stdout] 130 |             (0, -1) => { last = state[i]; },
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:132:72
[INFO] [stdout]     |
[INFO] [stdout] 132 |             (1, 1) => { n_filled +=1; *islands.last_mut().unwrap()+=1; last = state[i];},
[INFO] [stdout]     |                                                                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:133:26
[INFO] [stdout]     |
[INFO] [stdout] 133 |             (1, -1) => { last = state[i]; },
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:134:56
[INFO] [stdout]     |
[INFO] [stdout] 134 |             (-1, 1) => { n_filled+=1; islands.push(1); last = state[i]; },
[INFO] [stdout]     |                                                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:136:27
[INFO] [stdout]     |
[INFO] [stdout] 136 |             (-1, -1) => { last = state[i];},
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/solver.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | impl Features {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 85 |     fn new(n_filled: usize, islands: Vec<usize>, n_unknown:usize) -> Features {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ortho_state` and `ortho_features` are never read
[INFO] [stdout]    --> src/solver.rs:99:5
[INFO] [stdout]     |
[INFO] [stdout] 94  | struct Node {
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 99  |     ortho_state: Vec<i8>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     ortho_features: Features
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_node` is never used
[INFO] [stdout]    --> src/solver.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn print_node(node: &Node) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::prelude::*`
[INFO] [stdout]  --> src/problems.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ndarray::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Debug`
[INFO] [stdout]  --> src/problems.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::Debug;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec::Vec`
[INFO] [stdout]  --> src/problems.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/problems.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:129:55
[INFO] [stdout]     |
[INFO] [stdout] 129 |             (0, 1) => { n_filled+=1; islands.push(1); last = state[i]},
[INFO] [stdout]     |                                                       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:130:26
[INFO] [stdout]     |
[INFO] [stdout] 130 |             (0, -1) => { last = state[i]; },
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:132:72
[INFO] [stdout]     |
[INFO] [stdout] 132 |             (1, 1) => { n_filled +=1; *islands.last_mut().unwrap()+=1; last = state[i];},
[INFO] [stdout]     |                                                                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:133:26
[INFO] [stdout]     |
[INFO] [stdout] 133 |             (1, -1) => { last = state[i]; },
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:134:56
[INFO] [stdout]     |
[INFO] [stdout] 134 |             (-1, 1) => { n_filled+=1; islands.push(1); last = state[i]; },
[INFO] [stdout]     |                                                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/solver.rs:136:27
[INFO] [stdout]     |
[INFO] [stdout] 136 |             (-1, -1) => { last = state[i];},
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ortho_state` and `ortho_features` are never read
[INFO] [stdout]    --> src/solver.rs:99:5
[INFO] [stdout]     |
[INFO] [stdout] 94  | struct Node {
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 99  |     ortho_state: Vec<i8>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     ortho_features: Features
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_node` is never used
[INFO] [stdout]    --> src/solver.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn print_node(node: &Node) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "5004a993609a6418471881deb1a12a260f1713dcd9d87b8411ab46ac27a82119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5004a993609a6418471881deb1a12a260f1713dcd9d87b8411ab46ac27a82119", kill_on_drop: false }`
[INFO] [stdout] 5004a993609a6418471881deb1a12a260f1713dcd9d87b8411ab46ac27a82119
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3c8f6eb564bf9635d732f01155e29c192e09c1ee8f282089c5395a381d81e306
[INFO] running `Command { std: "docker" "start" "-a" "3c8f6eb564bf9635d732f01155e29c192e09c1ee8f282089c5395a381d81e306", kill_on_drop: false }`
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ndarray::prelude::*`
[INFO] [stderr]  --> src/problems.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ndarray::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Debug`
[INFO] [stderr]  --> src/problems.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt::Debug;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::vec::Vec`
[INFO] [stderr]  --> src/problems.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::vec::Vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::VecDeque`
[INFO] [stderr]  --> src/problems.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::VecDeque;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `last` is never read
[INFO] [stderr]    --> src/solver.rs:129:55
[INFO] [stderr]     |
[INFO] [stderr] 129 |             (0, 1) => { n_filled+=1; islands.push(1); last = state[i]},
[INFO] [stderr]     |                                                       ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `last` is never read
[INFO] [stderr]    --> src/solver.rs:130:26
[INFO] [stderr]     |
[INFO] [stderr] 130 |             (0, -1) => { last = state[i]; },
[INFO] [stderr]     |                          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `last` is never read
[INFO] [stderr]    --> src/solver.rs:132:72
[INFO] [stderr]     |
[INFO] [stderr] 132 |             (1, 1) => { n_filled +=1; *islands.last_mut().unwrap()+=1; last = state[i];},
[INFO] [stderr]     |                                                                        ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `last` is never read
[INFO] [stderr]    --> src/solver.rs:133:26
[INFO] [stderr]     |
[INFO] [stderr] 133 |             (1, -1) => { last = state[i]; },
[INFO] [stderr]     |                          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `last` is never read
[INFO] [stderr]    --> src/solver.rs:134:56
[INFO] [stderr]     |
[INFO] [stderr] 134 |             (-1, 1) => { n_filled+=1; islands.push(1); last = state[i]; },
[INFO] [stderr]     |                                                        ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `last` is never read
[INFO] [stderr]    --> src/solver.rs:136:27
[INFO] [stderr]     |
[INFO] [stderr] 136 |             (-1, -1) => { last = state[i];},
[INFO] [stderr]     |                           ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/solver.rs:85:8
[INFO] [stderr]    |
[INFO] [stderr] 84 | impl Features {
[INFO] [stderr]    | ------------- associated function in this implementation
[INFO] [stderr] 85 |     fn new(n_filled: usize, islands: Vec<usize>, n_unknown:usize) -> Features {
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `ortho_state` and `ortho_features` are never read
[INFO] [stderr]    --> src/solver.rs:99:5
[INFO] [stderr]     |
[INFO] [stderr] 94  | struct Node {
[INFO] [stderr]     |        ---- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 99  |     ortho_state: Vec<i8>,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 102 |     ortho_features: Features
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_node` is never used
[INFO] [stderr]    --> src/solver.rs:105:4
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn print_node(node: &Node) {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `ortho_state` and `ortho_features` are never read
[INFO] [stderr]    --> src/solver.rs:99:5
[INFO] [stderr]     |
[INFO] [stderr] 94  | struct Node {
[INFO] [stderr]     |        ---- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 99  |     ortho_state: Vec<i8>,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 102 |     ortho_features: Features
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cross_me_solver` (lib) generated 14 warnings (run `cargo fix --lib -p cross_me_solver` to apply 4 suggestions)
[INFO] [stderr] warning: `cross_me_solver` (lib test) generated 13 warnings (12 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cross_me_solver-5704e58644e98e04)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test solver::tests::test_problem_10100_11111 ... ok
[INFO] [stdout] test solver::tests::test_problem_10101 ... ok
[INFO] [stdout] test solver::tests::test_problem_110001_with_prefilled_board ... ok
[INFO] [stdout] test solver::tests::test_get_features ... ok
[INFO] [stdout] test solver::tests::test_problem_11111 ... ok
[INFO] [stdout] test solver::tests::test_solve_simple_problem ... ok
[INFO] [stdout] test solver::tests::test_solve_simple_6x6_problem ... ok
[INFO] [stdout] test solver::tests::test_solve_medium_problem ... ok
[INFO] [stdout] test solver::tests::test_solve_medium_10x10_problem ... ok
[INFO] [stdout] test solver::tests::test_solve_2_29 ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cross_me_solver-3f308b587f2f0f3c)
[INFO] [stdout] test solver::tests::test_solve_4_1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.95s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cross_me_solver
[INFO] [stderr] error: failed to create temporary directory: Custom { kind: StorageFull, error: PathError { path: "/tmp/rustdoctestYNGHcm", err: Os { code: 28, kind: StorageFull, message: "No space left on device" } } }
[INFO] [stderr] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/bin/rustdoc --edition=2018 --crate-type lib --color auto --crate-name cross_me_solver --test src/lib.rs --test-run-directory /opt/rustwide/workdir -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern cross_me_solver=/opt/rustwide/target/debug/deps/libcross_me_solver-3b60f612d7643051.rlib --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-0f23b2d482bd6ac0.rlib -C embed-bitcode=no --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values())' --cap-lints=forbid --error-format human` (exit status: 1)
[INFO] [stderr] note: test exited abnormally; to see the full output pass --nocapture to the harness.
[INFO] running `Command { std: "docker" "inspect" "3c8f6eb564bf9635d732f01155e29c192e09c1ee8f282089c5395a381d81e306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c8f6eb564bf9635d732f01155e29c192e09c1ee8f282089c5395a381d81e306", kill_on_drop: false }`
[INFO] [stdout] 3c8f6eb564bf9635d732f01155e29c192e09c1ee8f282089c5395a381d81e306