[INFO] cloning repository https://github.com/data-pup/rust-conway
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/data-pup/rust-conway" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdata-pup%2Frust-conway", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdata-pup%2Frust-conway'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14f641e7f2793326113a9713678db0a7a56d67fb
[INFO] checking data-pup/rust-conway against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdata-pup%2Frust-conway" "/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/data-pup/rust-conway on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/data-pup/rust-conway
[INFO] finished tweaking git repo https://github.com/data-pup/rust-conway
[INFO] tweaked toml for git repo https://github.com/data-pup/rust-conway written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/data-pup/rust-conway already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0a10467fdac662b9246660e51f20e797d8a1431d6b4c90ba6dfdc2b0b53d580
[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" "f0a10467fdac662b9246660e51f20e797d8a1431d6b4c90ba6dfdc2b0b53d580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0a10467fdac662b9246660e51f20e797d8a1431d6b4c90ba6dfdc2b0b53d580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0a10467fdac662b9246660e51f20e797d8a1431d6b4c90ba6dfdc2b0b53d580", kill_on_drop: false }`
[INFO] [stdout] f0a10467fdac662b9246660e51f20e797d8a1431d6b4c90ba6dfdc2b0b53d580
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3abb63a2852c126bacb54af7615d88afb1341cda9af7507cb59ab73ad8ce68b1
[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" "3abb63a2852c126bacb54af7615d88afb1341cda9af7507cb59ab73ad8ce68b1", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking rust-conway v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/board/mod.rs:33:32
[INFO] [stdout]    |
[INFO] [stdout] 33 |                 if rng.gen() { &living.push(BoardPosition::new(curr_x, curr_y)); }
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |                 if rng.gen() { let _ = &living.push(BoardPosition::new(curr_x, curr_y)); }
[INFO] [stdout]    |                                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/board/validate.rs:25:51
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let b = Board { dims:dims.clone(), living:living.clone() };
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   expected struct `Vec`, found `&[BoardPosition]`
[INFO] [stdout]    |                                                   help: try using a conversion method: `living.to_vec()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<BoardPosition>`
[INFO] [stdout]            found reference `&[BoardPosition]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/board/board_to_string.rs:42:51
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let b = Board { dims:dims.clone(), living:living.clone() };
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   expected struct `Vec`, found `&[BoardPosition]`
[INFO] [stdout]    |                                                   help: try using a conversion method: `living.to_vec()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<BoardPosition>`
[INFO] [stdout]            found reference `&[BoardPosition]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-conway` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "3abb63a2852c126bacb54af7615d88afb1341cda9af7507cb59ab73ad8ce68b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3abb63a2852c126bacb54af7615d88afb1341cda9af7507cb59ab73ad8ce68b1", kill_on_drop: false }`
[INFO] [stdout] 3abb63a2852c126bacb54af7615d88afb1341cda9af7507cb59ab73ad8ce68b1