[INFO] updating cached repository jsfr/lines-king
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jsfr/lines-king
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jsfr/lines-king" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/jsfr/lines-king"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/jsfr/lines-king'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jsfr/lines-king" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/jsfr/lines-king"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/jsfr/lines-king'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8e060b810b987953aac6476258409e7c4a037aa0
[INFO] sha for GitHub repo jsfr/lines-king: 8e060b810b987953aac6476258409e7c4a037aa0
[INFO] validating manifest of jsfr/lines-king on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jsfr/lines-king on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jsfr/lines-king
[INFO] finished frobbing jsfr/lines-king
[INFO] frobbed toml for jsfr/lines-king written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/jsfr/lines-king/Cargo.toml
[INFO] started frobbing jsfr/lines-king
[INFO] finished frobbing jsfr/lines-king
[INFO] frobbed toml for jsfr/lines-king written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/jsfr/lines-king/Cargo.toml
[INFO] crate jsfr/lines-king already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jsfr/lines-king against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-2/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/jsfr/lines-king:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5620debe92f91793b05614831df805a1b3786b532db50450a219d884d85ecada
[INFO] running `"docker" "start" "-a" "5620debe92f91793b05614831df805a1b3786b532db50450a219d884d85ecada"`
[INFO] [stderr]    Compiling serde v0.8.21
[INFO] [stderr]     Checking pistoncore-input v0.15.0
[INFO] [stderr]    Compiling glutin v0.7.2
[INFO] [stderr]    Compiling gl v0.6.1
[INFO] [stderr]     Checking rusttype v0.2.1
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]     Checking image v0.12.0
[INFO] [stderr]     Checking nalgebra v0.10.1
[INFO] [stderr] warning[E0311]: the parameter type `K` may not live long enough
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusttype-0.2.1/src/support/bst/map.rs:81:19
[INFO] [stderr]    |
[INFO] [stderr] 81 |             match node.force() {
[INFO] [stderr]    |                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding an explicit lifetime bound for `K`
[INFO] [stderr] note: the parameter type `K` must be valid for the anonymous lifetime #1 defined on the function body at 77:9...
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusttype-0.2.1/src/support/bst/map.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 | /         fn clone_subtree<K: Clone, V: Clone>(
[INFO] [stderr] 78 | |                 node: node::NodeRef<marker::Immut, K, V, marker::LeafOrInternal>)
[INFO] [stderr] 79 | |                 -> BTreeMap<K, V> {
[INFO] [stderr] 80 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 136| |             }
[INFO] [stderr] 137| |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]    = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]    = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr] warning[E0311]: the parameter type `V` may not live long enough
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusttype-0.2.1/src/support/bst/map.rs:81:19
[INFO] [stderr]    |
[INFO] [stderr] 81 |             match node.force() {
[INFO] [stderr]    |                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding an explicit lifetime bound for `V`
[INFO] [stderr] note: the parameter type `V` must be valid for the anonymous lifetime #1 defined on the function body at 77:9...
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusttype-0.2.1/src/support/bst/map.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 | /         fn clone_subtree<K: Clone, V: Clone>(
[INFO] [stderr] 78 | |                 node: node::NodeRef<marker::Immut, K, V, marker::LeafOrInternal>)
[INFO] [stderr] 79 | |                 -> BTreeMap<K, V> {
[INFO] [stderr] 80 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 136| |             }
[INFO] [stderr] 137| |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]    = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]    = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]     Checking pistoncore-window v0.24.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.27.0
[INFO] [stderr]     Checking piston v0.27.0
[INFO] [stderr]    Compiling serde_json v0.8.4
[INFO] [stderr]    Compiling target_build_utils v0.1.2
[INFO] [stderr]    Compiling libloading v0.3.1
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.37.0
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.7.6
[INFO] [stderr]     Checking wayland-client v0.7.6
[INFO] [stderr]     Checking wayland-kbd v0.6.2
[INFO] [stderr]     Checking wayland-window v0.4.3
[INFO] [stderr]     Checking winit v0.5.7
[INFO] [stderr]     Checking pistoncore-glutin_window v0.33.0
[INFO] [stderr]     Checking lines-king v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]    --> src/main.rs:148:26
[INFO] [stderr]     |
[INFO] [stderr] 148 |     fn update(&mut self, args: &UpdateArgs) {
[INFO] [stderr]     |                          ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |         for mut player in &mut self.players {
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |         for mut player in &mut self.players {
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `GREEN`
[INFO] [stderr]   --> src/main.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | const GREEN:  Color = [0.0, 1.0, 0.0, 1.0];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `YELLOW`
[INFO] [stderr]   --> src/main.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | const YELLOW: Color = [0.0, 1.0, 1.0, 1.0];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PLAYER_SIZE`
[INFO] [stderr]   --> src/main.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | const PLAYER_SIZE: usize = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]    --> src/main.rs:148:26
[INFO] [stderr]     |
[INFO] [stderr] 148 |     fn update(&mut self, args: &UpdateArgs) {
[INFO] [stderr]     |                          ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |         for mut player in &mut self.players {
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |         for mut player in &mut self.players {
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `GREEN`
[INFO] [stderr]   --> src/main.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | const GREEN:  Color = [0.0, 1.0, 0.0, 1.0];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `YELLOW`
[INFO] [stderr]   --> src/main.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | const YELLOW: Color = [0.0, 1.0, 1.0, 1.0];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PLAYER_SIZE`
[INFO] [stderr]   --> src/main.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | const PLAYER_SIZE: usize = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.95s
[INFO] running `"docker" "inspect" "5620debe92f91793b05614831df805a1b3786b532db50450a219d884d85ecada"`
[INFO] running `"docker" "rm" "-f" "5620debe92f91793b05614831df805a1b3786b532db50450a219d884d85ecada"`
[INFO] [stdout] 5620debe92f91793b05614831df805a1b3786b532db50450a219d884d85ecada