[INFO] cloning repository https://github.com/Addisonbean/Ishido
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Addisonbean/Ishido" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAddisonbean%2FIshido", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAddisonbean%2FIshido'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 21db9a6c84fe91e04333f00082336f6d175a2e88
[INFO] checking Addisonbean/Ishido against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAddisonbean%2FIshido" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Addisonbean/Ishido 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/Addisonbean/Ishido
[INFO] finished tweaking git repo https://github.com/Addisonbean/Ishido
[INFO] tweaked toml for git repo https://github.com/Addisonbean/Ishido written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Addisonbean/Ishido 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]  Downloading crates ...
[INFO] [stderr]   Downloaded owning_ref v0.3.3
[INFO] [stderr]   Downloaded num-iter v0.1.34
[INFO] [stderr]   Downloaded num-integer v0.1.35
[INFO] [stderr]   Downloaded permutohedron v0.2.4
[INFO] [stderr]   Downloaded cursive v0.7.5
[INFO] [stderr]   Downloaded ncurses v5.91.0
[INFO] [stderr]   Downloaded num-bigint v0.1.41
[INFO] [stderr]   Downloaded maplit v1.0.1
[INFO] [stderr]   Downloaded num v0.1.41
[INFO] [stderr]   Downloaded stable_deref_trait v1.0.0
[INFO] [stderr]   Downloaded num-rational v0.1.40
[INFO] [stderr]   Downloaded unicode-segmentation v1.2.0
[INFO] [stderr]   Downloaded num-complex v0.1.41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 15d6318ecf163cdf7082aa4188146e16cd2b6b98881b8793eacc3278a5345522
[INFO] running `Command { std: "docker" "start" "-a" "15d6318ecf163cdf7082aa4188146e16cd2b6b98881b8793eacc3278a5345522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15d6318ecf163cdf7082aa4188146e16cd2b6b98881b8793eacc3278a5345522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d6318ecf163cdf7082aa4188146e16cd2b6b98881b8793eacc3278a5345522", kill_on_drop: false }`
[INFO] [stdout] 15d6318ecf163cdf7082aa4188146e16cd2b6b98881b8793eacc3278a5345522
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 51f6f2930400fa878918cf01dbe998aeeb99c37328259e67867bfdb6e2cec8d4
[INFO] running `Command { std: "docker" "start" "-a" "51f6f2930400fa878918cf01dbe998aeeb99c37328259e67867bfdb6e2cec8d4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking num-traits v0.1.42
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-complex v0.1.41
[INFO] [stderr]     Checking rand v0.3.20
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]    Compiling ncurses v5.91.0
[INFO] [stderr]     Checking num-bigint v0.1.41
[INFO] [stderr]     Checking num-rational v0.1.40
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking toml v0.4.5
[INFO] [stderr]     Checking cursive v0.7.5
[INFO] [stderr]     Checking ishido v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/board.rs:205:21
[INFO] [stdout]     |
[INFO] [stdout] 205 | /                     self.place_stone()
[INFO] [stdout] 206 | |                         .map(|game_over| self.game_over = game_over);
[INFO] [stdout]     | |_____________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/board.rs:205:21
[INFO] [stdout]     |
[INFO] [stdout] 205 | /                     self.place_stone()
[INFO] [stdout] 206 | |                         .map(|game_over| self.game_over = game_over);
[INFO] [stdout]     | |_____________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.69s
[INFO] running `Command { std: "docker" "inspect" "51f6f2930400fa878918cf01dbe998aeeb99c37328259e67867bfdb6e2cec8d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51f6f2930400fa878918cf01dbe998aeeb99c37328259e67867bfdb6e2cec8d4", kill_on_drop: false }`
[INFO] [stdout] 51f6f2930400fa878918cf01dbe998aeeb99c37328259e67867bfdb6e2cec8d4