[INFO] cloning repository https://github.com/masonium/card-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/masonium/card-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasonium%2Fcard-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasonium%2Fcard-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85ab7c08645b3af30ae23034d77de6f13b1e4e3c
[INFO] checking masonium/card-engine against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasonium%2Fcard-engine" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/masonium/card-engine on toolchain 2e6fc425411280c658d852813de01c5157255088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/masonium/card-engine
[INFO] finished tweaking git repo https://github.com/masonium/card-engine
[INFO] tweaked toml for git repo https://github.com/masonium/card-engine written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/masonium/card-engine 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" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termion v1.3.0
[INFO] [stderr]   Downloaded itertools v0.6.0
[INFO] [stderr]   Downloaded ndarray v0.9.1
[INFO] [stderr]   Downloaded ndarray-rand v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a0dd0aa5e9c21b2427075d5cfa4aa16be2791e81e9979bc208e874d81605aef
[INFO] running `Command { std: "docker" "start" "-a" "5a0dd0aa5e9c21b2427075d5cfa4aa16be2791e81e9979bc208e874d81605aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a0dd0aa5e9c21b2427075d5cfa4aa16be2791e81e9979bc208e874d81605aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a0dd0aa5e9c21b2427075d5cfa4aa16be2791e81e9979bc208e874d81605aef", kill_on_drop: false }`
[INFO] [stdout] 5a0dd0aa5e9c21b2427075d5cfa4aa16be2791e81e9979bc208e874d81605aef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0b2d892f33e261f4363e542a9f479a0b8738d71fdc5dae59702681a4756ea6a
[INFO] running `Command { std: "docker" "start" "-a" "a0b2d892f33e261f4363e542a9f479a0b8738d71fdc5dae59702681a4756ea6a", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]    Compiling matrixmultiply v0.1.13
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]    Compiling ndarray v0.9.1
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking itertools v0.6.0
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking termion v1.3.0
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking clap v2.24.2
[INFO] [stderr]     Checking num-complex v0.1.37
[INFO] [stderr]     Checking ndarray-rand v0.5.0
[INFO] [stderr]     Checking card-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/germanwhist/engine.rs:141:28
[INFO] [stdout]     |
[INFO] [stdout] 141 |         self.phase.as_ref().borrow()
[INFO] [stdout]     |                            ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `dyn GamePhase` does not implement `Borrow`, so calling `borrow` on `&dyn GamePhase` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/germanwhist/engine.rs:141:28
[INFO] [stdout]     |
[INFO] [stdout] 141 |         self.phase.as_ref().borrow()
[INFO] [stdout]     |                            ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `dyn GamePhase` does not implement `Borrow`, so calling `borrow` on `&dyn GamePhase` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` 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] [stdout] warning: method `on_game_action` is never used
[INFO] [stdout]   --> src/bin/basic_player.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | trait Player {
[INFO] [stdout]    |       ------ method in this trait
[INFO] [stdout] 18 |     fn on_game_action(&mut self, _ev: &GameEvent) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `on_game_action` is never used
[INFO] [stdout]   --> src/bin/basic_player.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | trait Player {
[INFO] [stdout]    |       ------ method in this trait
[INFO] [stdout] 18 |     fn on_game_action(&mut self, _ev: &GameEvent) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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` profile [unoptimized + debuginfo] target(s) in 1.87s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.8.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "a0b2d892f33e261f4363e542a9f479a0b8738d71fdc5dae59702681a4756ea6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0b2d892f33e261f4363e542a9f479a0b8738d71fdc5dae59702681a4756ea6a", kill_on_drop: false }`
[INFO] [stdout] a0b2d892f33e261f4363e542a9f479a0b8738d71fdc5dae59702681a4756ea6a