[INFO] updating cached repository jeromew21/rust-tic-tac-toe
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jeromew21/rust-tic-tac-toe
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jeromew21/rust-tic-tac-toe" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jeromew21/rust-tic-tac-toe"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jeromew21/rust-tic-tac-toe'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jeromew21/rust-tic-tac-toe" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jeromew21/rust-tic-tac-toe"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jeromew21/rust-tic-tac-toe'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 70d2f3e372b20e44eb425dac86cb22b0f11df24d
[INFO] sha for GitHub repo jeromew21/rust-tic-tac-toe: 70d2f3e372b20e44eb425dac86cb22b0f11df24d
[INFO] validating manifest of jeromew21/rust-tic-tac-toe on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jeromew21/rust-tic-tac-toe on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jeromew21/rust-tic-tac-toe
[INFO] finished frobbing jeromew21/rust-tic-tac-toe
[INFO] frobbed toml for jeromew21/rust-tic-tac-toe written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jeromew21/rust-tic-tac-toe/Cargo.toml
[INFO] started frobbing jeromew21/rust-tic-tac-toe
[INFO] finished frobbing jeromew21/rust-tic-tac-toe
[INFO] frobbed toml for jeromew21/rust-tic-tac-toe written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jeromew21/rust-tic-tac-toe/Cargo.toml
[INFO] crate jeromew21/rust-tic-tac-toe already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jeromew21/rust-tic-tac-toe against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-3/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jeromew21/rust-tic-tac-toe:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aacea1861254fb86cb4096a0093a8b7219f816402cad99c92a47f546ec63e8d9
[INFO] running `"docker" "start" "-a" "aacea1861254fb86cb4096a0093a8b7219f816402cad99c92a47f546ec63e8d9"`
[INFO] [stderr]     Checking tic-tac-toe v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/ttt.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 space => {
[INFO] [stderr]    |                 ----- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 91 |                 _ => panic!("Wrong turn")
[INFO] [stderr]    |                 ^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]    --> src/main.rs:138:17
[INFO] [stderr]     |
[INFO] [stderr] 138 |             let num = 
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `error`
[INFO] [stderr]    --> src/main.rs:151:25
[INFO] [stderr]     |
[INFO] [stderr] 151 |                     Err(error) => {
[INFO] [stderr]     |                         ^^^^^ help: consider prefixing with an underscore: `_error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `space`
[INFO] [stderr]   --> src/ttt.rs:75:54
[INFO] [stderr]    |
[INFO] [stderr] 75 |         pub fn make_move(&mut self, location: usize, space: &Space) -> bool {
[INFO] [stderr]    |                                                      ^^^^^ help: consider prefixing with an underscore: `_space`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/ttt.rs:183:29
[INFO] [stderr]     |
[INFO] [stderr] 183 |                 if let Some(c) = i.move_index {
[INFO] [stderr]     |                             ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |             let mut reader = BufReader::new(data);
[INFO] [stderr]    |                 ----^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     std::io::stdout().flush();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             File::create(RECORD_FILE);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fs::write(RECORD_FILE, data);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/ttt.rs:78:24
[INFO] [stderr]    |
[INFO] [stderr] 78 |                     if location < 0 || location > 8 {
[INFO] [stderr]    |                        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/ttt.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 space => {
[INFO] [stderr]    |                 ----- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 91 |                 _ => panic!("Wrong turn")
[INFO] [stderr]    |                 ^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]    --> src/main.rs:138:17
[INFO] [stderr]     |
[INFO] [stderr] 138 |             let num = 
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `error`
[INFO] [stderr]    --> src/main.rs:151:25
[INFO] [stderr]     |
[INFO] [stderr] 151 |                     Err(error) => {
[INFO] [stderr]     |                         ^^^^^ help: consider prefixing with an underscore: `_error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `space`
[INFO] [stderr]   --> src/ttt.rs:75:54
[INFO] [stderr]    |
[INFO] [stderr] 75 |         pub fn make_move(&mut self, location: usize, space: &Space) -> bool {
[INFO] [stderr]    |                                                      ^^^^^ help: consider prefixing with an underscore: `_space`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/ttt.rs:183:29
[INFO] [stderr]     |
[INFO] [stderr] 183 |                 if let Some(c) = i.move_index {
[INFO] [stderr]     |                             ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |             let mut reader = BufReader::new(data);
[INFO] [stderr]    |                 ----^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     std::io::stdout().flush();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             File::create(RECORD_FILE);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fs::write(RECORD_FILE, data);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/ttt.rs:78:24
[INFO] [stderr]    |
[INFO] [stderr] 78 |                     if location < 0 || location > 8 {
[INFO] [stderr]    |                        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `"docker" "inspect" "aacea1861254fb86cb4096a0093a8b7219f816402cad99c92a47f546ec63e8d9"`
[INFO] running `"docker" "rm" "-f" "aacea1861254fb86cb4096a0093a8b7219f816402cad99c92a47f546ec63e8d9"`
[INFO] [stdout] aacea1861254fb86cb4096a0093a8b7219f816402cad99c92a47f546ec63e8d9