[INFO] cloning repository https://github.com/Magnap/game-trees-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Magnap/game-trees-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMagnap%2Fgame-trees-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMagnap%2Fgame-trees-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 141a0f2d86fef40cf82dafed7b86f340ec5bec95
[INFO] checking Magnap/game-trees-rs against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMagnap%2Fgame-trees-rs" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Magnap/game-trees-rs on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Magnap/game-trees-rs
[INFO] finished tweaking git repo https://github.com/Magnap/game-trees-rs
[INFO] tweaked toml for git repo https://github.com/Magnap/game-trees-rs written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Magnap/game-trees-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 145d0b968730606f7c1dc79c7092c5434bbb72817cc2f135fef07775655693ae
[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" "145d0b968730606f7c1dc79c7092c5434bbb72817cc2f135fef07775655693ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "145d0b968730606f7c1dc79c7092c5434bbb72817cc2f135fef07775655693ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "145d0b968730606f7c1dc79c7092c5434bbb72817cc2f135fef07775655693ae", kill_on_drop: false }`
[INFO] [stdout] 145d0b968730606f7c1dc79c7092c5434bbb72817cc2f135fef07775655693ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f360ec651aa571a25cf287f45b8c04760a7109c6ebd5cb2cc519502c5c6c1e4
[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" "5f360ec651aa571a25cf287f45b8c04760a7109c6ebd5cb2cc519502c5c6c1e4", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking libc v0.2.29
[INFO] [stderr]     Checking itertools v0.6.1
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]     Checking game-trees v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stdout]   --> src/game/mod.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type ScoreBoard<G: GameState> = HashMap<G::Player, Score>;
[INFO] [stdout]    |                        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: use fully disambiguated paths (i.e., `<T as Trait>::Assoc`) to refer to associated types in type aliases
[INFO] [stdout]   --> src/game/mod.rs:10:45
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type ScoreBoard<G: GameState> = HashMap<G::Player, Score>;
[INFO] [stdout]    |                                             ^^^^^^^^^
[INFO] [stdout] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type ScoreBoard<G> = HashMap<G::Player, Score>;
[INFO] [stdout]    |                     --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stdout]   --> src/game/mod.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type ScoreBoard<G: GameState> = HashMap<G::Player, Score>;
[INFO] [stdout]    |                        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: use fully disambiguated paths (i.e., `<T as Trait>::Assoc`) to refer to associated types in type aliases
[INFO] [stdout]   --> src/game/mod.rs:10:45
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type ScoreBoard<G: GameState> = HashMap<G::Player, Score>;
[INFO] [stdout]    |                                             ^^^^^^^^^
[INFO] [stdout] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type ScoreBoard<G> = HashMap<G::Player, Score>;
[INFO] [stdout]    |                     --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:21:35
[INFO] [stdout]    |
[INFO] [stdout] 21 | type BoxResult<T> = Result<T, Box<Error>>;
[INFO] [stdout]    |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:21:35
[INFO] [stdout]    |
[INFO] [stdout] 21 | type BoxResult<T> = Result<T, Box<Error>>;
[INFO] [stdout]    |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.04s
[INFO] running `Command { std: "docker" "inspect" "5f360ec651aa571a25cf287f45b8c04760a7109c6ebd5cb2cc519502c5c6c1e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f360ec651aa571a25cf287f45b8c04760a7109c6ebd5cb2cc519502c5c6c1e4", kill_on_drop: false }`
[INFO] [stdout] 5f360ec651aa571a25cf287f45b8c04760a7109c6ebd5cb2cc519502c5c6c1e4