[INFO] cloning repository https://github.com/MichaelDuPlessis/sudoku-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MichaelDuPlessis/sudoku-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelDuPlessis%2Fsudoku-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelDuPlessis%2Fsudoku-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cd18eacab2734a1695b44d91c26b4e3cdf60a04
[INFO] checking MichaelDuPlessis/sudoku-solver against try#654bc80249a2b2ba8bd16392b5829d87ed96c92d for pr-136458
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelDuPlessis%2Fsudoku-solver" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MichaelDuPlessis/sudoku-solver on toolchain 654bc80249a2b2ba8bd16392b5829d87ed96c92d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MichaelDuPlessis/sudoku-solver
[INFO] finished tweaking git repo https://github.com/MichaelDuPlessis/sudoku-solver
[INFO] tweaked toml for git repo https://github.com/MichaelDuPlessis/sudoku-solver written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MichaelDuPlessis/sudoku-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" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking MichaelDuPlessis/sudoku-solver against try#654bc80249a2b2ba8bd16392b5829d87ed96c92d for pr-136458
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelDuPlessis%2Fsudoku-solver" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MichaelDuPlessis/sudoku-solver on toolchain 654bc80249a2b2ba8bd16392b5829d87ed96c92d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MichaelDuPlessis/sudoku-solver
[INFO] finished tweaking git repo https://github.com/MichaelDuPlessis/sudoku-solver
[INFO] tweaked toml for git repo https://github.com/MichaelDuPlessis/sudoku-solver written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MichaelDuPlessis/sudoku-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" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db1608917d5fa1e6a812409e9865ccf0214c2fb74b0162e623c0f51e5fabdb7f
[INFO] running `Command { std: "docker" "start" "-a" "db1608917d5fa1e6a812409e9865ccf0214c2fb74b0162e623c0f51e5fabdb7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db1608917d5fa1e6a812409e9865ccf0214c2fb74b0162e623c0f51e5fabdb7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db1608917d5fa1e6a812409e9865ccf0214c2fb74b0162e623c0f51e5fabdb7f", kill_on_drop: false }`
[INFO] [stdout] db1608917d5fa1e6a812409e9865ccf0214c2fb74b0162e623c0f51e5fabdb7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bbfdeefc96cd25a2420ed5861b358d5f1bb861a9ded2c4fc485ceb2cfc93397
[INFO] running `Command { std: "docker" "start" "-a" "4bbfdeefc96cd25a2420ed5861b358d5f1bb861a9ded2c4fc485ceb2cfc93397", kill_on_drop: false }`
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0603]: struct `Board` is private
[INFO] [stdout]    --> src/game/solver.rs:1:32
[INFO] [stdout]     |
[INFO] [stdout] 1   | use super::{Pos, State, board::Board};
[INFO] [stdout]     |                                ^^^^^ private struct
[INFO] [stdout]     |
[INFO] [stdout] note: the struct `Board` is defined here
[INFO] [stdout]    --> src/game/board.rs:186:1
[INFO] [stdout]     |
[INFO] [stdout] 186 | struct Board {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: struct `Board` is private
[INFO] [stdout]    --> src/main.rs:2:35
[INFO] [stdout]     |
[INFO] [stdout] 2   | use game::{solver::Solver, board::Board};
[INFO] [stdout]     |                                   ^^^^^ private struct
[INFO] [stdout]     |
[INFO] [stdout] note: the struct `Board` is defined here
[INFO] [stdout]    --> src/game/board.rs:186:1
[INFO] [stdout]     |
[INFO] [stdout] 186 | struct Board {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoIter`
[INFO] [stdout]  --> src/game/board.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ops::Index, array::{IntoIter, self}};
[INFO] [stdout]   |                               ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: struct `Board` is private
[INFO] [stdout]    --> src/game/solver.rs:1:32
[INFO] [stdout]     |
[INFO] [stdout] 1   | use super::{Pos, State, board::Board};
[INFO] [stdout]     |                                ^^^^^ private struct
[INFO] [stdout]     |
[INFO] [stdout] note: the struct `Board` is defined here
[INFO] [stdout]    --> src/game/board.rs:186:1
[INFO] [stdout]     |
[INFO] [stdout] 186 | struct Board {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: struct `Board` is private
[INFO] [stdout]    --> src/main.rs:2:35
[INFO] [stdout]     |
[INFO] [stdout] 2   | use game::{solver::Solver, board::Board};
[INFO] [stdout]     |                                   ^^^^^ private struct
[INFO] [stdout]     |
[INFO] [stdout] note: the struct `Board` is defined here
[INFO] [stdout]    --> src/game/board.rs:186:1
[INFO] [stdout]     |
[INFO] [stdout] 186 | struct Board {
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IntoIter`
[INFO] [stdout]  --> src/game/board.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ops::Index, array::{IntoIter, self}};
[INFO] [stdout]   |                               ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Game: From<&Board>` is not satisfied
[INFO] [stdout]    --> src/game/board.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         Self::from(&board.as_bytes().iter().map(|p| {
[INFO] [stdout]     |         ^^^^ the trait `From<&Board>` is not implemented for `Game`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `From<T>`:
[INFO] [stdout]               `Game` implements `From<&[Option<u8>; 81]>`
[INFO] [stdout]               `Game` implements `From<&str>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0594]: cannot assign to data in an index of `Board`
[INFO] [stdout]   --> src/game/board.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         self.board[pos.0 + pos.1 * 9] = Some(piece);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot assign
[INFO] [stdout]    |
[INFO] [stdout]    = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `Board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow data in an index of `Board` as mutable
[INFO] [stdout]   --> src/game/board.rs:85:15
[INFO] [stdout]    |
[INFO] [stdout] 85 |         match self.board[pos.0 + pos.1 * 9].take() {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout]    |
[INFO] [stdout]    = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `Board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `board::Game: From<&Board>` is not satisfied
[INFO] [stdout]    --> src/game/board.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         Self::from(&board.as_bytes().iter().map(|p| {
[INFO] [stdout]     |         ^^^^ the trait `From<&Board>` is not implemented for `board::Game`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `From<T>`:
[INFO] [stdout]               `board::Game` implements `From<&[Option<u8>; 81]>`
[INFO] [stdout]               `board::Game` implements `From<&str>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `self.board` which is behind a shared reference
[INFO] [stdout]    --> src/game/board.rs:159:22
[INFO] [stdout]     |
[INFO] [stdout] 159 |         for piece in self.board {
[INFO] [stdout]     |                      ^^^^^^^^^^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      `self.board` moved due to this implicit call to `.into_iter()`
[INFO] [stdout]     |                      move occurs because `self.board` has type `Board`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] note: `into_iter` takes ownership of the receiver `self`, which moves `self.board`
[INFO] [stdout]    --> /rustc/654bc80249a2b2ba8bd16392b5829d87ed96c92d/library/core/src/iter/traits/collect.rs:313:18
[INFO] [stdout] note: if `Board` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/game/board.rs:186:1
[INFO] [stdout]     |
[INFO] [stdout] 159 |         for piece in self.board {
[INFO] [stdout]     |                      ---------- you could clone this value
[INFO] [stdout] ...
[INFO] [stdout] 186 | struct Board {
[INFO] [stdout]     | ^^^^^^^^^^^^ consider implementing `Clone` for this type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0594]: cannot assign to data in an index of `Board`
[INFO] [stdout]    --> src/game/board.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |             board[i] = b;
[INFO] [stdout]     |             ^^^^^^^^^^^^ cannot assign
[INFO] [stdout]     |
[INFO] [stdout]     = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `Board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0507, E0594, E0596, E0603.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0594]: cannot assign to data in an index of `Board`
[INFO] [stdout]   --> src/game/board.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         self.board[pos.0 + pos.1 * 9] = Some(piece);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot assign
[INFO] [stdout]    |
[INFO] [stdout]    = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `Board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sudoku` (bin "sudoku") due to 7 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0596]: cannot borrow data in an index of `Board` as mutable
[INFO] [stdout]   --> src/game/board.rs:85:15
[INFO] [stdout]    |
[INFO] [stdout] 85 |         match self.board[pos.0 + pos.1 * 9].take() {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout]    |
[INFO] [stdout]    = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `Board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `self.board` which is behind a shared reference
[INFO] [stdout]    --> src/game/board.rs:159:22
[INFO] [stdout]     |
[INFO] [stdout] 159 |         for piece in self.board {
[INFO] [stdout]     |                      ^^^^^^^^^^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      `self.board` moved due to this implicit call to `.into_iter()`
[INFO] [stdout]     |                      move occurs because `self.board` has type `Board`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] note: `into_iter` takes ownership of the receiver `self`, which moves `self.board`
[INFO] [stdout]    --> /rustc/654bc80249a2b2ba8bd16392b5829d87ed96c92d/library/core/src/iter/traits/collect.rs:313:18
[INFO] [stdout] note: if `Board` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/game/board.rs:186:1
[INFO] [stdout]     |
[INFO] [stdout] 159 |         for piece in self.board {
[INFO] [stdout]     |                      ---------- you could clone this value
[INFO] [stdout] ...
[INFO] [stdout] 186 | struct Board {
[INFO] [stdout]     | ^^^^^^^^^^^^ consider implementing `Clone` for this type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0594]: cannot assign to data in an index of `Board`
[INFO] [stdout]    --> src/game/board.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |             board[i] = b;
[INFO] [stdout]     |             ^^^^^^^^^^^^ cannot assign
[INFO] [stdout]     |
[INFO] [stdout]     = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `Board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0507, E0594, E0596, E0603.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sudoku` (bin "sudoku" test) due to 7 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "4bbfdeefc96cd25a2420ed5861b358d5f1bb861a9ded2c4fc485ceb2cfc93397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bbfdeefc96cd25a2420ed5861b358d5f1bb861a9ded2c4fc485ceb2cfc93397", kill_on_drop: false }`
[INFO] [stdout] 4bbfdeefc96cd25a2420ed5861b358d5f1bb861a9ded2c4fc485ceb2cfc93397