[INFO] cloning repository https://github.com/LucioCarvalhoDev/rusted-mines
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LucioCarvalhoDev/rusted-mines" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucioCarvalhoDev%2Frusted-mines", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucioCarvalhoDev%2Frusted-mines'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ab768a3709f88360f0c8792be0b89fc7f62cfb6
[INFO] building LucioCarvalhoDev/rusted-mines against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucioCarvalhoDev%2Frusted-mines" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LucioCarvalhoDev/rusted-mines on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LucioCarvalhoDev/rusted-mines
[INFO] finished tweaking git repo https://github.com/LucioCarvalhoDev/rusted-mines
[INFO] tweaked toml for git repo https://github.com/LucioCarvalhoDev/rusted-mines written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LucioCarvalhoDev/rusted-mines 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32b3b979b065125c9727dc7186d4d531e611b26bc47690db321dc8b50a2650c5
[INFO] running `Command { std: "docker" "start" "-a" "32b3b979b065125c9727dc7186d4d531e611b26bc47690db321dc8b50a2650c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32b3b979b065125c9727dc7186d4d531e611b26bc47690db321dc8b50a2650c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32b3b979b065125c9727dc7186d4d531e611b26bc47690db321dc8b50a2650c5", kill_on_drop: false }`
[INFO] [stdout] 32b3b979b065125c9727dc7186d4d531e611b26bc47690db321dc8b50a2650c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d72c380e79f2cbd6613096d381cc908f4d6f7889071f25a7d69bab7de4bd7e68
[INFO] running `Command { std: "docker" "start" "-a" "d72c380e79f2cbd6613096d381cc908f4d6f7889071f25a7d69bab7de4bd7e68", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rusted-mines v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `open_fields` and `flagged_fields` are never read
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Minesweeper {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     open_fields: HashSet<Position>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 18 |     mines: HashSet<Position>,
[INFO] [stdout] 19 |     flagged_fields: HashSet<Position>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Minesweeper` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cin` is never used
[INFO] [stdout]  --> src/msgr.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn cin(text: String, storage: &mut String) -> &str {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `Command { std: "docker" "inspect" "d72c380e79f2cbd6613096d381cc908f4d6f7889071f25a7d69bab7de4bd7e68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d72c380e79f2cbd6613096d381cc908f4d6f7889071f25a7d69bab7de4bd7e68", kill_on_drop: false }`
[INFO] [stdout] d72c380e79f2cbd6613096d381cc908f4d6f7889071f25a7d69bab7de4bd7e68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e81e0f30c8a1d23e88f3af3aa9b27ea8b4cd6b8f1ee6f202e4904dde6d156bc7
[INFO] running `Command { std: "docker" "start" "-a" "e81e0f30c8a1d23e88f3af3aa9b27ea8b4cd6b8f1ee6f202e4904dde6d156bc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusted-mines v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `open_fields` and `flagged_fields` are never read
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Minesweeper {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     open_fields: HashSet<Position>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 18 |     mines: HashSet<Position>,
[INFO] [stdout] 19 |     flagged_fields: HashSet<Position>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Minesweeper` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cin` is never used
[INFO] [stdout]  --> src/msgr.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn cin(text: String, storage: &mut String) -> &str {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `open_fields` and `flagged_fields` are never read
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Minesweeper {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     open_fields: HashSet<Position>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 18 |     mines: HashSet<Position>,
[INFO] [stdout] 19 |     flagged_fields: HashSet<Position>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Minesweeper` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "e81e0f30c8a1d23e88f3af3aa9b27ea8b4cd6b8f1ee6f202e4904dde6d156bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e81e0f30c8a1d23e88f3af3aa9b27ea8b4cd6b8f1ee6f202e4904dde6d156bc7", kill_on_drop: false }`
[INFO] [stdout] e81e0f30c8a1d23e88f3af3aa9b27ea8b4cd6b8f1ee6f202e4904dde6d156bc7