[INFO] cloning repository https://github.com/alanjjian/rust-chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alanjjian/rust-chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falanjjian%2Frust-chess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falanjjian%2Frust-chess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2865d1f06851b702bef751b49a558b1da3df140a
[INFO] fixing alanjjian/rust-chess against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falanjjian%2Frust-chess" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/alanjjian/rust-chess
[INFO] finished tweaking git repo https://github.com/alanjjian/rust-chess
[INFO] tweaked toml for git repo https://github.com/alanjjian/rust-chess written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alanjjian/rust-chess on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/alanjjian/rust-chess 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 47b08fa1b056b8f514b565f378cbf45f462483f6f885bf5b97c23b2bdbda28c1
[INFO] running `Command { std: "docker" "start" "47b08fa1b056b8f514b565f378cbf45f462483f6f885bf5b97c23b2bdbda28c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "47b08fa1b056b8f514b565f378cbf45f462483f6f885bf5b97c23b2bdbda28c1" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47b08fa1b056b8f514b565f378cbf45f462483f6f885bf5b97c23b2bdbda28c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "47b08fa1b056b8f514b565f378cbf45f462483f6f885bf5b97c23b2bdbda28c1" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0609]: no field `piece` on type `Option<&Tile>`
[INFO] [stdout]    --> src/lib.rs:433:61
[INFO] [stdout]     |
[INFO] [stdout] 433 |                         match self.board.get_tile(curr_loc).piece {
[INFO] [stdout]     |                                                             ^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 433 |                         match self.board.get_tile(curr_loc).unwrap().piece {
[INFO] [stdout]     |                                                             +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `piece` on type `Option<&Tile>`
[INFO] [stdout]    --> src/lib.rs:456:61
[INFO] [stdout]     |
[INFO] [stdout] 456 |                         match self.board.get_tile(curr_loc).piece {
[INFO] [stdout]     |                                                             ^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 456 |                         match self.board.get_tile(curr_loc).unwrap().piece {
[INFO] [stdout]     |                                                             +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `color` on type `Option<&Tile>`
[INFO] [stdout]    --> src/lib.rs:459:47
[INFO] [stdout]     |
[INFO] [stdout] 459 | ...                   if &curr_tile.color.unwrap() != color {
[INFO] [stdout]     |                                     ^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 459 |                                 if &curr_tile.unwrap().color.unwrap() != color {
[INFO] [stdout]     |                                               +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `piece` on type `Option<&Tile>`
[INFO] [stdout]    --> src/lib.rs:483:57
[INFO] [stdout]     |
[INFO] [stdout] 483 |                     match self.board.get_tile(curr_loc).piece {
[INFO] [stdout]     |                                                         ^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 483 |                     match self.board.get_tile(curr_loc).unwrap().piece {
[INFO] [stdout]     |                                                         +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `color` on type `Option<&Tile>`
[INFO] [stdout]    --> src/lib.rs:488:43
[INFO] [stdout]     |
[INFO] [stdout] 488 | ...                   if &curr_tile.color.unwrap() != color {
[INFO] [stdout]     |                                     ^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 488 |                             if &curr_tile.unwrap().color.unwrap() != color {
[INFO] [stdout]     |                                           +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:498:9
[INFO] [stdout]     |
[INFO] [stdout] 289 |     fn get_legal_moves(&self, coord: Coord) -> Result<Vec<Coord>, String> {
[INFO] [stdout]     |                                                -------------------------- expected `Result<Vec<Coord>, String>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 498 |         legal_moves
[INFO] [stdout]     |         ^^^^^^^^^^^ expected `Result<Vec<Coord>, String>`, found `Vec<Coord>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Result<Vec<_>, String>`
[INFO] [stdout]              found struct `Vec<_>`
[INFO] [stdout] help: try wrapping the expression in `Ok`
[INFO] [stdout]     |
[INFO] [stdout] 498 |         Ok(legal_moves)
[INFO] [stdout]     |         +++           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `contains` found for enum `Result<T, E>` in the current scope
[INFO] [stdout]    --> src/lib.rs:506:43
[INFO] [stdout]     |
[INFO] [stdout] 506 |         self.get_legal_moves(first_coord).contains(&second_coord)
[INFO] [stdout]     |                                           ^^^^^^^^ method not found in `Result<Vec<Coord>, String>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess` (lib) due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0609]: no field `piece` on type `Option<&Tile>`
[INFO] [stdout]    --> src/lib.rs:433:61
[INFO] [stdout]     |
[INFO] [stdout] 433 |                         match self.board.get_tile(curr_loc).piece {
[INFO] [stdout]     |                                                             ^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 433 |                         match self.board.get_tile(curr_loc).unwrap().piece {
[INFO] [stdout]     |                                                             +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `piece` on type `Option<&Tile>`
[INFO] [stdout]    --> src/lib.rs:456:61
[INFO] [stdout]     |
[INFO] [stdout] 456 |                         match self.board.get_tile(curr_loc).piece {
[INFO] [stdout]     |                                                             ^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 456 |                         match self.board.get_tile(curr_loc).unwrap().piece {
[INFO] [stdout]     |                                                             +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `color` on type `Option<&Tile>`
[INFO] [stdout]    --> src/lib.rs:459:47
[INFO] [stdout]     |
[INFO] [stdout] 459 | ...                   if &curr_tile.color.unwrap() != color {
[INFO] [stdout]     |                                     ^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 459 |                                 if &curr_tile.unwrap().color.unwrap() != color {
[INFO] [stdout]     |                                               +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `piece` on type `Option<&Tile>`
[INFO] [stdout]    --> src/lib.rs:483:57
[INFO] [stdout]     |
[INFO] [stdout] 483 |                     match self.board.get_tile(curr_loc).piece {
[INFO] [stdout]     |                                                         ^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 483 |                     match self.board.get_tile(curr_loc).unwrap().piece {
[INFO] [stdout]     |                                                         +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `color` on type `Option<&Tile>`
[INFO] [stdout]    --> src/lib.rs:488:43
[INFO] [stdout]     |
[INFO] [stdout] 488 | ...                   if &curr_tile.color.unwrap() != color {
[INFO] [stdout]     |                                     ^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout] help: one of the expressions' fields has a field of the same name
[INFO] [stdout]     |
[INFO] [stdout] 488 |                             if &curr_tile.unwrap().color.unwrap() != color {
[INFO] [stdout]     |                                           +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:498:9
[INFO] [stdout]     |
[INFO] [stdout] 289 |     fn get_legal_moves(&self, coord: Coord) -> Result<Vec<Coord>, String> {
[INFO] [stdout]     |                                                -------------------------- expected `Result<Vec<Coord>, String>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 498 |         legal_moves
[INFO] [stdout]     |         ^^^^^^^^^^^ expected `Result<Vec<Coord>, String>`, found `Vec<Coord>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Result<Vec<_>, String>`
[INFO] [stdout]              found struct `Vec<_>`
[INFO] [stdout] help: try wrapping the expression in `Ok`
[INFO] [stdout]     |
[INFO] [stdout] 498 |         Ok(legal_moves)
[INFO] [stdout]     |         +++           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `contains` found for enum `Result<T, E>` in the current scope
[INFO] [stdout]    --> src/lib.rs:506:43
[INFO] [stdout]     |
[INFO] [stdout] 506 |         self.get_legal_moves(first_coord).contains(&second_coord)
[INFO] [stdout]     |                                           ^^^^^^^^ method not found in `Result<Vec<Coord>, String>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess` (lib test) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "47b08fa1b056b8f514b565f378cbf45f462483f6f885bf5b97c23b2bdbda28c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b08fa1b056b8f514b565f378cbf45f462483f6f885bf5b97c23b2bdbda28c1", kill_on_drop: false }`
[INFO] [stdout] 47b08fa1b056b8f514b565f378cbf45f462483f6f885bf5b97c23b2bdbda28c1
