[INFO] cloning repository https://github.com/GlitchyCat/minesweeper-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GlitchyCat/minesweeper-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGlitchyCat%2Fminesweeper-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGlitchyCat%2Fminesweeper-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ac78f62ba06c0b9dfe233b87180d483abfa7d76
[INFO] building GlitchyCat/minesweeper-rust 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%2FGlitchyCat%2Fminesweeper-rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GlitchyCat/minesweeper-rust 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/GlitchyCat/minesweeper-rust
[INFO] finished tweaking git repo https://github.com/GlitchyCat/minesweeper-rust
[INFO] tweaked toml for git repo https://github.com/GlitchyCat/minesweeper-rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/GlitchyCat/minesweeper-rust 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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 99c39f76b26bfcb0e02543fdd09143daf637c99fc579ba37f817a6a952f1f836
[INFO] running `Command { std: "docker" "start" "-a" "99c39f76b26bfcb0e02543fdd09143daf637c99fc579ba37f817a6a952f1f836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99c39f76b26bfcb0e02543fdd09143daf637c99fc579ba37f817a6a952f1f836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99c39f76b26bfcb0e02543fdd09143daf637c99fc579ba37f817a6a952f1f836", kill_on_drop: false }`
[INFO] [stdout] 99c39f76b26bfcb0e02543fdd09143daf637c99fc579ba37f817a6a952f1f836
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7f93347c9a54742ebf83d28fd70f8d8ad9caae8ce6813d99220162281fd77fa1
[INFO] running `Command { std: "docker" "start" "-a" "7f93347c9a54742ebf83d28fd70f8d8ad9caae8ce6813d99220162281fd77fa1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `exploded_mine_pos` and `num_correctly_flagged` are never used
[INFO] [stdout]   --> src/controller.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl MinesweeperController {
[INFO] [stdout]    | -------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn exploded_mine_pos(&self) -> Option<(u32, u32)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn num_correctly_flagged(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `num_flagged` is never used
[INFO] [stdout]    --> src/model.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 46  | impl Field {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 101 |     pub fn num_flagged(&self) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "7f93347c9a54742ebf83d28fd70f8d8ad9caae8ce6813d99220162281fd77fa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f93347c9a54742ebf83d28fd70f8d8ad9caae8ce6813d99220162281fd77fa1", kill_on_drop: false }`
[INFO] [stdout] 7f93347c9a54742ebf83d28fd70f8d8ad9caae8ce6813d99220162281fd77fa1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e8b0c31f2380b54f16ff887046bbd08f46c1a09dbfb42a4e860931a19daff4a4
[INFO] running `Command { std: "docker" "start" "-a" "e8b0c31f2380b54f16ff887046bbd08f46c1a09dbfb42a4e860931a19daff4a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `exploded_mine_pos` and `num_correctly_flagged` are never used
[INFO] [stdout]   --> src/controller.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl MinesweeperController {
[INFO] [stdout]    | -------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn exploded_mine_pos(&self) -> Option<(u32, u32)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn num_correctly_flagged(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `num_flagged` is never used
[INFO] [stdout]    --> src/model.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 46  | impl Field {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 101 |     pub fn num_flagged(&self) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "e8b0c31f2380b54f16ff887046bbd08f46c1a09dbfb42a4e860931a19daff4a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8b0c31f2380b54f16ff887046bbd08f46c1a09dbfb42a4e860931a19daff4a4", kill_on_drop: false }`
[INFO] [stdout] e8b0c31f2380b54f16ff887046bbd08f46c1a09dbfb42a4e860931a19daff4a4