[INFO] cloning repository https://github.com/jessaimaya/2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jessaimaya/2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjessaimaya%2F2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjessaimaya%2F2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11fc486774412211b20de50e10ae458a5bfc9b5a
[INFO] checking jessaimaya/2048 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjessaimaya%2F2048" "/workspace/builds/worker-23/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-23/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jessaimaya/2048 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jessaimaya/2048
[INFO] finished tweaking git repo https://github.com/jessaimaya/2048
[INFO] tweaked toml for git repo https://github.com/jessaimaya/2048 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate git repo https://github.com/jessaimaya/2048 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d6a9fa4b102dd326dd06ee4aa42275936ba0c7198cbf6d1b10fc0bcc5caf72d
[INFO] running `Command { std: "docker" "start" "-a" "2d6a9fa4b102dd326dd06ee4aa42275936ba0c7198cbf6d1b10fc0bcc5caf72d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d6a9fa4b102dd326dd06ee4aa42275936ba0c7198cbf6d1b10fc0bcc5caf72d", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 419a88f166dcf47c4cdd29aa1cccd87e5adb629ef22a3626351ed948d5f74be2
[INFO] running `Command { std: "docker" "start" "-a" "419a88f166dcf47c4cdd29aa1cccd87e5adb629ef22a3626351ed948d5f74be2", kill_on_drop: false }`
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[INFO] [stderr]     Checking cfg-if v1.0.0
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[INFO] [stdout] warning: unused import: `log::info`
[INFO] [stdout]  --> src/components/grid.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::info;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]   --> src/lib.rs:95:34
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     , index: 0})>{grid::grid_view(self.grid.last().expect("App grid data empty"))}</div>
[INFO] [stdout]    |                                  ^                                                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 95 -                     , index: 0})>{grid::grid_view(self.grid.last().expect("App grid data empty"))}</div>
[INFO] [stdout] 95 +                     , index: 0})>grid::grid_view(self.grid.last().expect("App grid data empty"))</div>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::info`
[INFO] [stdout]  --> src/components/grid.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::info;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]   --> src/lib.rs:95:34
[INFO] [stdout]    |
[INFO] [stdout] 95 |                     , index: 0})>{grid::grid_view(self.grid.last().expect("App grid data empty"))}</div>
[INFO] [stdout]    |                                  ^                                                               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 95 -                     , index: 0})>{grid::grid_view(self.grid.last().expect("App grid data empty"))}</div>
[INFO] [stdout] 95 +                     , index: 0})>grid::grid_view(self.grid.last().expect("App grid data empty"))</div>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             Restart => (),
[INFO] [stdout]    |             ------- matches any value
[INFO] [stdout] 80 |             Undo => (),
[INFO] [stdout]    |             ^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             Restart => (),
[INFO] [stdout]    |             ------- matches any value
[INFO] [stdout] 80 |             Undo => (),
[INFO] [stdout] 81 |             _ => (),
[INFO] [stdout]    |             ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Restart`
[INFO] [stdout]   --> src/lib.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             Restart => (),
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_Restart`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Undo`
[INFO] [stdout]   --> src/lib.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             Undo => (),
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_Undo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `changed` is assigned to, but never used
[INFO] [stdout]   --> src/game/mod.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut changed = false;
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_changed` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `changed` is never read
[INFO] [stdout]   --> src/game/mod.rs:64:25
[INFO] [stdout]    |
[INFO] [stdout] 64 |                         changed = true;
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `changed` is assigned to, but never used
[INFO] [stdout]   --> src/game/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut changed = false;
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_changed` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `changed` is never read
[INFO] [stdout]   --> src/game/mod.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |                     changed = true;
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Restart` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             Restart => (),
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `restart`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Undo` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             Undo => (),
[INFO] [stdout]    |             ^^^^ help: convert the identifier to snake case (notice the capitalization): `undo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             Restart => (),
[INFO] [stdout]    |             ------- matches any value
[INFO] [stdout] 80 |             Undo => (),
[INFO] [stdout]    |             ^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             Restart => (),
[INFO] [stdout]    |             ------- matches any value
[INFO] [stdout] 80 |             Undo => (),
[INFO] [stdout] 81 |             _ => (),
[INFO] [stdout]    |             ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Restart`
[INFO] [stdout]   --> src/lib.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             Restart => (),
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_Restart`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Undo`
[INFO] [stdout]   --> src/lib.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             Undo => (),
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_Undo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `changed` is assigned to, but never used
[INFO] [stdout]   --> src/game/mod.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut changed = false;
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_changed` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `changed` is never read
[INFO] [stdout]   --> src/game/mod.rs:64:25
[INFO] [stdout]    |
[INFO] [stdout] 64 |                         changed = true;
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `changed` is assigned to, but never used
[INFO] [stdout]   --> src/game/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut changed = false;
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_changed` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `changed` is never read
[INFO] [stdout]   --> src/game/mod.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |                     changed = true;
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Restart` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             Restart => (),
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `restart`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Undo` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             Undo => (),
[INFO] [stdout]    |             ^^^^ help: convert the identifier to snake case (notice the capitalization): `undo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.26s
[INFO] running `Command { std: "docker" "inspect" "419a88f166dcf47c4cdd29aa1cccd87e5adb629ef22a3626351ed948d5f74be2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "419a88f166dcf47c4cdd29aa1cccd87e5adb629ef22a3626351ed948d5f74be2", kill_on_drop: false }`
[INFO] [stdout] 419a88f166dcf47c4cdd29aa1cccd87e5adb629ef22a3626351ed948d5f74be2