[INFO] cloning repository https://github.com/jleahred/connect4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jleahred/connect4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjleahred%2Fconnect4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjleahred%2Fconnect4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3516a4ce664330778521d8698f4545d40e79fb9d
[INFO] checking jleahred/connect4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjleahred%2Fconnect4" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jleahred/connect4 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jleahred/connect4
[INFO] finished tweaking git repo https://github.com/jleahred/connect4
[INFO] tweaked toml for git repo https://github.com/jleahred/connect4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jleahred/connect4 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/jleahred/idata.git`
[INFO] [stderr]     Updating git repository `https://github.com/DenisKolodin/yew`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v0.15.22
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40f241c8261b049e405485e8fdf05316d341417baf37b4900f65df04e561fc58
[INFO] running `Command { std: "docker" "start" "-a" "40f241c8261b049e405485e8fdf05316d341417baf37b4900f65df04e561fc58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40f241c8261b049e405485e8fdf05316d341417baf37b4900f65df04e561fc58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40f241c8261b049e405485e8fdf05316d341417baf37b4900f65df04e561fc58", kill_on_drop: false }`
[INFO] [stdout] 40f241c8261b049e405485e8fdf05316d341417baf37b4900f65df04e561fc58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfab22b3bebbc1df3ad8d6908fd17f7bb4c07d18fb997fe03a1a43f11a3e6ced
[INFO] running `Command { std: "docker" "start" "-a" "cfab22b3bebbc1df3ad8d6908fd17f7bb4c07d18fb997fe03a1a43f11a3e6ced", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.2
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling base-x v0.2.3
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking idata v0.1.1 (https://github.com/jleahred/idata.git#08eab4e3)
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]    Compiling stdweb v0.4.12
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking http v0.1.14
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.4
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]     Checking yew v0.5.0 (https://github.com/DenisKolodin/yew#5a040a19)
[INFO] [stderr]     Checking connect4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Turn` is imported redundantly
[INFO] [stdout]  --> src/engine/minmax.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Turn` is already imported here
[INFO] [stdout] 2 | use crate::engine::patterns::Eval;
[INFO] [stdout] 3 | use crate::engine::{Turn, NCOLS};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NCOLS` is imported redundantly
[INFO] [stdout]  --> src/engine/minmax.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `NCOLS` is already imported here
[INFO] [stdout] 2 | use crate::engine::patterns::Eval;
[INFO] [stdout] 3 | use crate::engine::{Turn, NCOLS};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Turn` is imported redundantly
[INFO] [stdout]  --> src/engine/minmax.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Turn` is already imported here
[INFO] [stdout] 2 | use crate::engine::patterns::Eval;
[INFO] [stdout] 3 | use crate::engine::{Turn, NCOLS};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NCOLS` is imported redundantly
[INFO] [stdout]  --> src/engine/minmax.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `NCOLS` is already imported here
[INFO] [stdout] 2 | use crate::engine::patterns::Eval;
[INFO] [stdout] 3 | use crate::engine::{Turn, NCOLS};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/engine/patterns.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         (other - curr)
[INFO] [stdout]     |         ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 111 -         (other - curr)
[INFO] [stdout] 111 +         other - curr
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/engine/patterns.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         (other - curr)
[INFO] [stdout]     |         ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 111 -         (other - curr)
[INFO] [stdout] 111 +         other - curr
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `idata` is imported redundantly
[INFO] [stdout]  --> src/html/game.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{idata, yew, Config, ConfigPlayers, Level};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate idata;
[INFO] [stdout]   | ------------------- the item `idata` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `yew` is imported redundantly
[INFO] [stdout]  --> src/html/game.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{idata, yew, Config, ConfigPlayers, Level};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate yew;
[INFO] [stdout]   | ----------------- the item `yew` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/html/config.rs:9:34
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout]   |                                  ^      ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 9 -     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout] 9 +     pub onstart: Option<Callback<Config>>,
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/html/config.rs:25:34
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout]    |                                  ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout] 25 +     pub onstart: Option<Callback<Config>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:113:54
[INFO] [stdout]     |
[INFO] [stdout] 113 |                     <option value="I play", selected={machine_plays()}, onclick=|_| Msg::PlayersComputerPlays,>{"play with me"}</option>
[INFO] [stdout]     |                                                      ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 113 -                     <option value="I play", selected={machine_plays()}, onclick=|_| Msg::PlayersComputerPlays,>{"play with me"}</option>
[INFO] [stdout] 113 +                     <option value="I play", selected= machine_plays(), onclick=|_| Msg::PlayersComputerPlays,>{"play with me"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `idata` is imported redundantly
[INFO] [stdout]  --> src/html/game.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{idata, yew, Config, ConfigPlayers, Level};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate idata;
[INFO] [stdout]   | ------------------- the item `idata` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:114:59
[INFO] [stdout]     |
[INFO] [stdout] 114 | ...   <option value="two players", selected={self.config.players == ConfigPlayers::TwoPlayers}, onclick=|_| Msg::PlayersTwoHumans,>{"two ...
[INFO] [stdout]     |                                             ^                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 114 -                     <option value="two players", selected={self.config.players == ConfigPlayers::TwoPlayers}, onclick=|_| Msg::PlayersTwoHumans,>{"two players"}</option>
[INFO] [stdout] 114 +                     <option value="two players", selected= self.config.players == ConfigPlayers::TwoPlayers, onclick=|_| Msg::PlayersTwoHumans,>{"two players"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:134:68
[INFO] [stdout]     |
[INFO] [stdout] 134 | ...   <option value="Mosquito's brain", selected={level == Level::Mosquito}, onclick=|_| Msg::L(Level::Mosquito),>{"Mosquito's brain"}</o...
[INFO] [stdout]     |                                                  ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 134 -                         <option value="Mosquito's brain", selected={level == Level::Mosquito}, onclick=|_| Msg::L(Level::Mosquito),>{"Mosquito's brain"}</option>
[INFO] [stdout] 134 +                         <option value="Mosquito's brain", selected= level == Level::Mosquito, onclick=|_| Msg::L(Level::Mosquito),>{"Mosquito's brain"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `yew` is imported redundantly
[INFO] [stdout]  --> src/html/game.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{idata, yew, Config, ConfigPlayers, Level};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate yew;
[INFO] [stdout]   | ----------------- the item `yew` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:135:61
[INFO] [stdout]     |
[INFO] [stdout] 135 | ...   <option value="Weak mind", selected={level == Level::WeakMind}, onclick=|_| Msg::L(Level::WeakMind),>{"Weak mind"}</option>
[INFO] [stdout]     |                                           ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 135 -                         <option value="Weak mind", selected={level == Level::WeakMind}, onclick=|_| Msg::L(Level::WeakMind),>{"Weak mind"}</option>
[INFO] [stdout] 135 +                         <option value="Weak mind", selected= level == Level::WeakMind, onclick=|_| Msg::L(Level::WeakMind),>{"Weak mind"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:136:61
[INFO] [stdout]     |
[INFO] [stdout] 136 |                         <option value="just easy", selected={level == Level::Easy}, onclick=|_| Msg::L(Level::Easy),>{"just easy"}</option>
[INFO] [stdout]     |                                                             ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 136 -                         <option value="just easy", selected={level == Level::Easy}, onclick=|_| Msg::L(Level::Easy),>{"just easy"}</option>
[INFO] [stdout] 136 +                         <option value="just easy", selected= level == Level::Easy, onclick=|_| Msg::L(Level::Easy),>{"just easy"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/html/config.rs:9:34
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout]   |                                  ^      ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 9 -     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout] 9 +     pub onstart: Option<Callback<Config>>,
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/html/config.rs:25:34
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout]    |                                  ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout] 25 +     pub onstart: Option<Callback<Config>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:113:54
[INFO] [stdout]     |
[INFO] [stdout] 113 |                     <option value="I play", selected={machine_plays()}, onclick=|_| Msg::PlayersComputerPlays,>{"play with me"}</option>
[INFO] [stdout]     |                                                      ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 113 -                     <option value="I play", selected={machine_plays()}, onclick=|_| Msg::PlayersComputerPlays,>{"play with me"}</option>
[INFO] [stdout] 113 +                     <option value="I play", selected= machine_plays(), onclick=|_| Msg::PlayersComputerPlays,>{"play with me"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:114:59
[INFO] [stdout]     |
[INFO] [stdout] 114 | ...   <option value="two players", selected={self.config.players == ConfigPlayers::TwoPlayers}, onclick=|_| Msg::PlayersTwoHumans,>{"two ...
[INFO] [stdout]     |                                             ^                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 114 -                     <option value="two players", selected={self.config.players == ConfigPlayers::TwoPlayers}, onclick=|_| Msg::PlayersTwoHumans,>{"two players"}</option>
[INFO] [stdout] 114 +                     <option value="two players", selected= self.config.players == ConfigPlayers::TwoPlayers, onclick=|_| Msg::PlayersTwoHumans,>{"two players"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:134:68
[INFO] [stdout]     |
[INFO] [stdout] 134 | ...   <option value="Mosquito's brain", selected={level == Level::Mosquito}, onclick=|_| Msg::L(Level::Mosquito),>{"Mosquito's brain"}</o...
[INFO] [stdout]     |                                                  ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 134 -                         <option value="Mosquito's brain", selected={level == Level::Mosquito}, onclick=|_| Msg::L(Level::Mosquito),>{"Mosquito's brain"}</option>
[INFO] [stdout] 134 +                         <option value="Mosquito's brain", selected= level == Level::Mosquito, onclick=|_| Msg::L(Level::Mosquito),>{"Mosquito's brain"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:135:61
[INFO] [stdout]     |
[INFO] [stdout] 135 | ...   <option value="Weak mind", selected={level == Level::WeakMind}, onclick=|_| Msg::L(Level::WeakMind),>{"Weak mind"}</option>
[INFO] [stdout]     |                                           ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 135 -                         <option value="Weak mind", selected={level == Level::WeakMind}, onclick=|_| Msg::L(Level::WeakMind),>{"Weak mind"}</option>
[INFO] [stdout] 135 +                         <option value="Weak mind", selected= level == Level::WeakMind, onclick=|_| Msg::L(Level::WeakMind),>{"Weak mind"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:136:61
[INFO] [stdout]     |
[INFO] [stdout] 136 |                         <option value="just easy", selected={level == Level::Easy}, onclick=|_| Msg::L(Level::Easy),>{"just easy"}</option>
[INFO] [stdout]     |                                                             ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 136 -                         <option value="just easy", selected={level == Level::Easy}, onclick=|_| Msg::L(Level::Easy),>{"just easy"}</option>
[INFO] [stdout] 136 +                         <option value="just easy", selected= level == Level::Easy, onclick=|_| Msg::L(Level::Easy),>{"just easy"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/html/game.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     job: Option<Box<Task>>,
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     job: Option<Box<dyn Task>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/html/game.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     job: Option<Box<Task>>,
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     job: Option<Box<dyn Task>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `PlayersAnalisys` is never constructed
[INFO] [stdout]   --> src/html/config.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Msg {
[INFO] [stdout]    |          --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 16 |     PlayersAnalisys,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `PlayersAnalisys` is never constructed
[INFO] [stdout]   --> src/html/config.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Msg {
[INFO] [stdout]    |          --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 16 |     PlayersAnalisys,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.11s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: stdweb v0.4.12
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "cfab22b3bebbc1df3ad8d6908fd17f7bb4c07d18fb997fe03a1a43f11a3e6ced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfab22b3bebbc1df3ad8d6908fd17f7bb4c07d18fb997fe03a1a43f11a3e6ced", kill_on_drop: false }`
[INFO] [stdout] cfab22b3bebbc1df3ad8d6908fd17f7bb4c07d18fb997fe03a1a43f11a3e6ced
[INFO] checking jleahred/connect4 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjleahred%2Fconnect4" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jleahred/connect4 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jleahred/connect4
[INFO] finished tweaking git repo https://github.com/jleahred/connect4
[INFO] tweaked toml for git repo https://github.com/jleahred/connect4 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jleahred/connect4 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35fdb760ff9fc58855e99cf1aed30dce2f6d188e6f4e5834659f5e2ce2e78fa5
[INFO] running `Command { std: "docker" "start" "-a" "35fdb760ff9fc58855e99cf1aed30dce2f6d188e6f4e5834659f5e2ce2e78fa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35fdb760ff9fc58855e99cf1aed30dce2f6d188e6f4e5834659f5e2ce2e78fa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35fdb760ff9fc58855e99cf1aed30dce2f6d188e6f4e5834659f5e2ce2e78fa5", kill_on_drop: false }`
[INFO] [stdout] 35fdb760ff9fc58855e99cf1aed30dce2f6d188e6f4e5834659f5e2ce2e78fa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c3e0cc24a4abdebde05117c81c4487a3068a145765130aa39fe3f344ac5f826
[INFO] running `Command { std: "docker" "start" "-a" "0c3e0cc24a4abdebde05117c81c4487a3068a145765130aa39fe3f344ac5f826", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.2
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling base-x v0.2.3
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking idata v0.1.1 (https://github.com/jleahred/idata.git#08eab4e3)
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]    Compiling stdweb v0.4.12
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking http v0.1.14
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.4
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]     Checking yew v0.5.0 (https://github.com/DenisKolodin/yew#5a040a19)
[INFO] [stderr]     Checking connect4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Turn` is imported redundantly
[INFO] [stdout]  --> src/engine/minmax.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Turn` is already imported here
[INFO] [stdout] 2 | use crate::engine::patterns::Eval;
[INFO] [stdout] 3 | use crate::engine::{Turn, NCOLS};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NCOLS` is imported redundantly
[INFO] [stdout]  --> src/engine/minmax.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `NCOLS` is already imported here
[INFO] [stdout] 2 | use crate::engine::patterns::Eval;
[INFO] [stdout] 3 | use crate::engine::{Turn, NCOLS};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/engine/patterns.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         (other - curr)
[INFO] [stdout]     |         ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 111 -         (other - curr)
[INFO] [stdout] 111 +         other - curr
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `idata` is imported redundantly
[INFO] [stdout]  --> src/html/game.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{idata, yew, Config, ConfigPlayers, Level};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate idata;
[INFO] [stdout]   | ------------------- the item `idata` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `yew` is imported redundantly
[INFO] [stdout]  --> src/html/game.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{idata, yew, Config, ConfigPlayers, Level};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate yew;
[INFO] [stdout]   | ----------------- the item `yew` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/html/config.rs:9:34
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout]   |                                  ^      ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 9 -     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout] 9 +     pub onstart: Option<Callback<Config>>,
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/html/config.rs:25:34
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout]    |                                  ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout] 25 +     pub onstart: Option<Callback<Config>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:113:54
[INFO] [stdout]     |
[INFO] [stdout] 113 |                     <option value="I play", selected={machine_plays()}, onclick=|_| Msg::PlayersComputerPlays,>{"play with me"}</option>
[INFO] [stdout]     |                                                      ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 113 -                     <option value="I play", selected={machine_plays()}, onclick=|_| Msg::PlayersComputerPlays,>{"play with me"}</option>
[INFO] [stdout] 113 +                     <option value="I play", selected= machine_plays(), onclick=|_| Msg::PlayersComputerPlays,>{"play with me"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:114:59
[INFO] [stdout]     |
[INFO] [stdout] 114 | ...   <option value="two players", selected={self.config.players == ConfigPlayers::TwoPlayers}, onclick=|_| Msg::PlayersTwoHumans,>{"two ...
[INFO] [stdout]     |                                             ^                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 114 -                     <option value="two players", selected={self.config.players == ConfigPlayers::TwoPlayers}, onclick=|_| Msg::PlayersTwoHumans,>{"two players"}</option>
[INFO] [stdout] 114 +                     <option value="two players", selected= self.config.players == ConfigPlayers::TwoPlayers, onclick=|_| Msg::PlayersTwoHumans,>{"two players"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:134:68
[INFO] [stdout]     |
[INFO] [stdout] 134 | ...   <option value="Mosquito's brain", selected={level == Level::Mosquito}, onclick=|_| Msg::L(Level::Mosquito),>{"Mosquito's brain"}</o...
[INFO] [stdout]     |                                                  ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 134 -                         <option value="Mosquito's brain", selected={level == Level::Mosquito}, onclick=|_| Msg::L(Level::Mosquito),>{"Mosquito's brain"}</option>
[INFO] [stdout] 134 +                         <option value="Mosquito's brain", selected= level == Level::Mosquito, onclick=|_| Msg::L(Level::Mosquito),>{"Mosquito's brain"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:135:61
[INFO] [stdout]     |
[INFO] [stdout] 135 | ...   <option value="Weak mind", selected={level == Level::WeakMind}, onclick=|_| Msg::L(Level::WeakMind),>{"Weak mind"}</option>
[INFO] [stdout]     |                                           ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 135 -                         <option value="Weak mind", selected={level == Level::WeakMind}, onclick=|_| Msg::L(Level::WeakMind),>{"Weak mind"}</option>
[INFO] [stdout] 135 +                         <option value="Weak mind", selected= level == Level::WeakMind, onclick=|_| Msg::L(Level::WeakMind),>{"Weak mind"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:136:61
[INFO] [stdout]     |
[INFO] [stdout] 136 |                         <option value="just easy", selected={level == Level::Easy}, onclick=|_| Msg::L(Level::Easy),>{"just easy"}</option>
[INFO] [stdout]     |                                                             ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 136 -                         <option value="just easy", selected={level == Level::Easy}, onclick=|_| Msg::L(Level::Easy),>{"just easy"}</option>
[INFO] [stdout] 136 +                         <option value="just easy", selected= level == Level::Easy, onclick=|_| Msg::L(Level::Easy),>{"just easy"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/html/game.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     job: Option<Box<Task>>,
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     job: Option<Box<dyn Task>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Turn` is imported redundantly
[INFO] [stdout]  --> src/engine/minmax.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Turn` is already imported here
[INFO] [stdout] 2 | use crate::engine::patterns::Eval;
[INFO] [stdout] 3 | use crate::engine::{Turn, NCOLS};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NCOLS` is imported redundantly
[INFO] [stdout]  --> src/engine/minmax.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `NCOLS` is already imported here
[INFO] [stdout] 2 | use crate::engine::patterns::Eval;
[INFO] [stdout] 3 | use crate::engine::{Turn, NCOLS};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/engine/patterns.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         (other - curr)
[INFO] [stdout]     |         ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 111 -         (other - curr)
[INFO] [stdout] 111 +         other - curr
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `idata` is imported redundantly
[INFO] [stdout]  --> src/html/game.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{idata, yew, Config, ConfigPlayers, Level};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate idata;
[INFO] [stdout]   | ------------------- the item `idata` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `yew` is imported redundantly
[INFO] [stdout]  --> src/html/game.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{idata, yew, Config, ConfigPlayers, Level};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate yew;
[INFO] [stdout]   | ----------------- the item `yew` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/html/config.rs:9:34
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout]   |                                  ^      ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 9 -     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout] 9 +     pub onstart: Option<Callback<Config>>,
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/html/config.rs:25:34
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout]    |                                  ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     pub onstart: Option<Callback<(Config)>>,
[INFO] [stdout] 25 +     pub onstart: Option<Callback<Config>>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:113:54
[INFO] [stdout]     |
[INFO] [stdout] 113 |                     <option value="I play", selected={machine_plays()}, onclick=|_| Msg::PlayersComputerPlays,>{"play with me"}</option>
[INFO] [stdout]     |                                                      ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 113 -                     <option value="I play", selected={machine_plays()}, onclick=|_| Msg::PlayersComputerPlays,>{"play with me"}</option>
[INFO] [stdout] 113 +                     <option value="I play", selected= machine_plays(), onclick=|_| Msg::PlayersComputerPlays,>{"play with me"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:114:59
[INFO] [stdout]     |
[INFO] [stdout] 114 | ...   <option value="two players", selected={self.config.players == ConfigPlayers::TwoPlayers}, onclick=|_| Msg::PlayersTwoHumans,>{"two ...
[INFO] [stdout]     |                                             ^                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 114 -                     <option value="two players", selected={self.config.players == ConfigPlayers::TwoPlayers}, onclick=|_| Msg::PlayersTwoHumans,>{"two players"}</option>
[INFO] [stdout] 114 +                     <option value="two players", selected= self.config.players == ConfigPlayers::TwoPlayers, onclick=|_| Msg::PlayersTwoHumans,>{"two players"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:134:68
[INFO] [stdout]     |
[INFO] [stdout] 134 | ...   <option value="Mosquito's brain", selected={level == Level::Mosquito}, onclick=|_| Msg::L(Level::Mosquito),>{"Mosquito's brain"}</o...
[INFO] [stdout]     |                                                  ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 134 -                         <option value="Mosquito's brain", selected={level == Level::Mosquito}, onclick=|_| Msg::L(Level::Mosquito),>{"Mosquito's brain"}</option>
[INFO] [stdout] 134 +                         <option value="Mosquito's brain", selected= level == Level::Mosquito, onclick=|_| Msg::L(Level::Mosquito),>{"Mosquito's brain"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:135:61
[INFO] [stdout]     |
[INFO] [stdout] 135 | ...   <option value="Weak mind", selected={level == Level::WeakMind}, onclick=|_| Msg::L(Level::WeakMind),>{"Weak mind"}</option>
[INFO] [stdout]     |                                           ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 135 -                         <option value="Weak mind", selected={level == Level::WeakMind}, onclick=|_| Msg::L(Level::WeakMind),>{"Weak mind"}</option>
[INFO] [stdout] 135 +                         <option value="Weak mind", selected= level == Level::WeakMind, onclick=|_| Msg::L(Level::WeakMind),>{"Weak mind"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/html/config.rs:136:61
[INFO] [stdout]     |
[INFO] [stdout] 136 |                         <option value="just easy", selected={level == Level::Easy}, onclick=|_| Msg::L(Level::Easy),>{"just easy"}</option>
[INFO] [stdout]     |                                                             ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 136 -                         <option value="just easy", selected={level == Level::Easy}, onclick=|_| Msg::L(Level::Easy),>{"just easy"}</option>
[INFO] [stdout] 136 +                         <option value="just easy", selected= level == Level::Easy, onclick=|_| Msg::L(Level::Easy),>{"just easy"}</option>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/html/game.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     job: Option<Box<Task>>,
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     job: Option<Box<dyn Task>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `PlayersAnalisys` is never constructed
[INFO] [stdout]   --> src/html/config.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Msg {
[INFO] [stdout]    |          --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 16 |     PlayersAnalisys,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `PlayersAnalisys` is never constructed
[INFO] [stdout]   --> src/html/config.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Msg {
[INFO] [stdout]    |          --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 16 |     PlayersAnalisys,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.58s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: stdweb v0.4.12
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "0c3e0cc24a4abdebde05117c81c4487a3068a145765130aa39fe3f344ac5f826", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c3e0cc24a4abdebde05117c81c4487a3068a145765130aa39fe3f344ac5f826", kill_on_drop: false }`
[INFO] [stdout] 0c3e0cc24a4abdebde05117c81c4487a3068a145765130aa39fe3f344ac5f826