[INFO] cloning repository https://github.com/hwchen/tetris-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hwchen/tetris-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhwchen%2Ftetris-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhwchen%2Ftetris-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b02ac0e13210fbe123cd10e39fe3b8739417de1c
[INFO] checking hwchen/tetris-rs against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhwchen%2Ftetris-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hwchen/tetris-rs on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hwchen/tetris-rs
[INFO] finished tweaking git repo https://github.com/hwchen/tetris-rs
[INFO] tweaked toml for git repo https://github.com/hwchen/tetris-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/hwchen/tetris-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/jeaye/ncurses-rs.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "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] 57ee60c88d94de5894d2b5921e4d6b4dcc44104d3cdb9fe7007b63b38fb86e93
[INFO] running `Command { std: "docker" "start" "-a" "57ee60c88d94de5894d2b5921e4d6b4dcc44104d3cdb9fe7007b63b38fb86e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57ee60c88d94de5894d2b5921e4d6b4dcc44104d3cdb9fe7007b63b38fb86e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57ee60c88d94de5894d2b5921e4d6b4dcc44104d3cdb9fe7007b63b38fb86e93", kill_on_drop: false }`
[INFO] [stdout] 57ee60c88d94de5894d2b5921e4d6b4dcc44104d3cdb9fe7007b63b38fb86e93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f327587a1422963bd62e63f645e9dd116d671fdbfebbf0ee90158fc150a32d9
[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" "0f327587a1422963bd62e63f645e9dd116d671fdbfebbf0ee90158fc150a32d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling ncurses v5.100.0 (https://github.com/jeaye/ncurses-rs.git#0d8621e8)
[INFO] [stderr]     Checking tetris v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/main.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |         for _ in range(0u,20) {
[INFO] [stdout]    |                        ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/main.rs:49:29
[INFO] [stdout]    |
[INFO] [stdout] 49 |             for _ in range (0u,10) {
[INFO] [stdout]    |                             ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/main.rs:59:24
[INFO] [stdout]    |
[INFO] [stdout] 59 |         for i in range(0u,20) {
[INFO] [stdout]    |                        ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/main.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |             for j in range(0u,10) {
[INFO] [stdout]    |                            ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/main.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |         for _ in range(0u,20) {
[INFO] [stdout]    |                        ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/main.rs:49:29
[INFO] [stdout]    |
[INFO] [stdout] 49 |             for _ in range (0u,10) {
[INFO] [stdout]    |                             ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/main.rs:59:24
[INFO] [stdout]    |
[INFO] [stdout] 59 |         for i in range(0u,20) {
[INFO] [stdout]    |                        ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/main.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |             for j in range(0u,10) {
[INFO] [stdout]    |                            ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]   --> src/main.rs:23:3
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[deriving( PartialEq, Show)]
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]   --> src/main.rs:23:3
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[deriving( PartialEq, Show)]
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `Empty` in this scope
[INFO] [stdout]   --> src/main.rs:45:20
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let cell = Empty;
[INFO] [stdout]    |                    ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 19 | use Cell::Empty;
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::num::IntErrorKind::Empty;
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::sync::mpsc::TryRecvError::Empty;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]   --> src/main.rs:47:18
[INFO] [stdout]    |
[INFO] [stdout] 47 |         for _ in range(0u,20) {
[INFO] [stdout]    |                  ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::slice::range;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]   --> src/main.rs:49:22
[INFO] [stdout]    |
[INFO] [stdout] 49 |             for _ in range (0u,10) {
[INFO] [stdout]    |                      ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::slice::range;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `Straight` in this scope
[INFO] [stdout]   --> src/main.rs:54:52
[INFO] [stdout]    |
[INFO] [stdout] 54 |         Game {score: 0, board: board, buffer: vec![Straight]}
[INFO] [stdout]    |                                                    ^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this unit variant
[INFO] [stdout]    |
[INFO] [stdout] 19 | use Piece::Straight;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]   --> src/main.rs:59:18
[INFO] [stdout]    |
[INFO] [stdout] 59 |         for i in range(0u,20) {
[INFO] [stdout]    |                  ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::slice::range;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]   --> src/main.rs:61:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |             for j in range(0u,10) {
[INFO] [stdout]    |                      ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::slice::range;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `Filled` in this scope
[INFO] [stdout]   --> src/main.rs:62:40
[INFO] [stdout]    |
[INFO] [stdout] 62 |                 if self.board[i][j] == Filled {
[INFO] [stdout]    |                                        ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this unit variant
[INFO] [stdout]    |
[INFO] [stdout] 19 | use Cell::Filled;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ncurses::*`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use ncurses::*;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bent_L` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:33:23
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Piece {Straight, Bent_L, Bent_R, Zee_L, Zee_R, Tee, Square, }
[INFO] [stdout]    |                       ^^^^^^ help: convert the identifier to upper camel case: `BentL`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bent_R` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:33:31
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Piece {Straight, Bent_L, Bent_R, Zee_L, Zee_R, Tee, Square, }
[INFO] [stdout]    |                               ^^^^^^ help: convert the identifier to upper camel case: `BentR`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Zee_L` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:33:39
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Piece {Straight, Bent_L, Bent_R, Zee_L, Zee_R, Tee, Square, }
[INFO] [stdout]    |                                       ^^^^^ help: convert the identifier to upper camel case: `ZeeL`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Zee_R` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:33:46
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Piece {Straight, Bent_L, Bent_R, Zee_L, Zee_R, Tee, Square, }
[INFO] [stdout]    |                                              ^^^^^ help: convert the identifier to upper camel case: `ZeeR`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `Empty` in this scope
[INFO] [stdout]   --> src/main.rs:45:20
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let cell = Empty;
[INFO] [stdout]    |                    ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 19 | use Cell::Empty;
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::num::IntErrorKind::Empty;
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::sync::mpsc::TryRecvError::Empty;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]   --> src/main.rs:47:18
[INFO] [stdout]    |
[INFO] [stdout] 47 |         for _ in range(0u,20) {
[INFO] [stdout]    |                  ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::slice::range;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]   --> src/main.rs:49:22
[INFO] [stdout]    |
[INFO] [stdout] 49 |             for _ in range (0u,10) {
[INFO] [stdout]    |                      ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::slice::range;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `Straight` in this scope
[INFO] [stdout]   --> src/main.rs:54:52
[INFO] [stdout]    |
[INFO] [stdout] 54 |         Game {score: 0, board: board, buffer: vec![Straight]}
[INFO] [stdout]    |                                                    ^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this unit variant
[INFO] [stdout]    |
[INFO] [stdout] 19 | use Piece::Straight;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]   --> src/main.rs:59:18
[INFO] [stdout]    |
[INFO] [stdout] 59 |         for i in range(0u,20) {
[INFO] [stdout]    |                  ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::slice::range;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]   --> src/main.rs:61:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |             for j in range(0u,10) {
[INFO] [stdout]    |                      ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::slice::range;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `Filled` in this scope
[INFO] [stdout]   --> src/main.rs:62:40
[INFO] [stdout]    |
[INFO] [stdout] 62 |                 if self.board[i][j] == Filled {
[INFO] [stdout]    |                                        ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this unit variant
[INFO] [stdout]    |
[INFO] [stdout] 19 | use Cell::Filled;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ncurses::*`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use ncurses::*;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bent_L` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:33:23
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Piece {Straight, Bent_L, Bent_R, Zee_L, Zee_R, Tee, Square, }
[INFO] [stdout]    |                       ^^^^^^ help: convert the identifier to upper camel case: `BentL`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bent_R` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:33:31
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Piece {Straight, Bent_L, Bent_R, Zee_L, Zee_R, Tee, Square, }
[INFO] [stdout]    |                               ^^^^^^ help: convert the identifier to upper camel case: `BentR`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Zee_L` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:33:39
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Piece {Straight, Bent_L, Bent_R, Zee_L, Zee_R, Tee, Square, }
[INFO] [stdout]    |                                       ^^^^^ help: convert the identifier to upper camel case: `ZeeL`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Zee_R` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:33:46
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Piece {Straight, Bent_L, Bent_R, Zee_L, Zee_R, Tee, Square, }
[INFO] [stdout]    |                                              ^^^^^ help: convert the identifier to upper camel case: `ZeeR`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Vec<Vec<Cell>>` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/main.rs:76:20
[INFO] [stdout]    |
[INFO] [stdout] 76 |     println!("{}", game.board);
[INFO] [stdout]    |                    ^^^^^^^^^^ `Vec<Vec<Cell>>` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `Vec<Vec<Cell>>`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Vec<Vec<Cell>>` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/main.rs:76:20
[INFO] [stdout]    |
[INFO] [stdout] 76 |     println!("{}", game.board);
[INFO] [stdout]    |                    ^^^^^^^^^^ `Vec<Vec<Cell>>` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `Vec<Vec<Cell>>`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: required by `std::fmt::Display::fmt`
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tetris`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 13 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0f327587a1422963bd62e63f645e9dd116d671fdbfebbf0ee90158fc150a32d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f327587a1422963bd62e63f645e9dd116d671fdbfebbf0ee90158fc150a32d9", kill_on_drop: false }`
[INFO] [stdout] 0f327587a1422963bd62e63f645e9dd116d671fdbfebbf0ee90158fc150a32d9