[INFO] cloning repository https://github.com/jakeec/minesweeper [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakeec/minesweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakeec%2Fminesweeper", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakeec%2Fminesweeper'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c5b73ef1a3098b82dd3a54f6dd564ae1abff13ff [INFO] building jakeec/minesweeper 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%2Fjakeec%2Fminesweeper" "/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/jakeec/minesweeper 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/jakeec/minesweeper [INFO] finished tweaking git repo https://github.com/jakeec/minesweeper [INFO] tweaked toml for git repo https://github.com/jakeec/minesweeper written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/jakeec/minesweeper 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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded getch v0.2.1 [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] ec94a17d8a7837b49d6b4dfcb5712755f42098be0126e45b5a77acfe76999ff2 [INFO] running `Command { std: "docker" "start" "-a" "ec94a17d8a7837b49d6b4dfcb5712755f42098be0126e45b5a77acfe76999ff2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec94a17d8a7837b49d6b4dfcb5712755f42098be0126e45b5a77acfe76999ff2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec94a17d8a7837b49d6b4dfcb5712755f42098be0126e45b5a77acfe76999ff2", kill_on_drop: false }` [INFO] [stdout] ec94a17d8a7837b49d6b4dfcb5712755f42098be0126e45b5a77acfe76999ff2 [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] 31f732b363b67f7747618b8f046b69220c1f759d6a81841ef73454d2f8d4dce4 [INFO] running `Command { std: "docker" "start" "-a" "31f732b363b67f7747618b8f046b69220c1f759d6a81841ef73454d2f8d4dce4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling ppv-lite86 v0.2.6 [INFO] [stderr] Compiling termcolor v1.1.0 [INFO] [stderr] Compiling c2-chacha v0.2.3 [INFO] [stderr] Compiling termios v0.2.2 [INFO] [stderr] Compiling getch v0.2.1 [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: unused import: `std::io::Stdin` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io::Stdin; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/minesweeper.rs:42:13 [INFO] [stdout] | [INFO] [stdout] 42 | for x in 0..dimensions.x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/minesweeper.rs:44:17 [INFO] [stdout] | [INFO] [stdout] 44 | for y in 0..dimensions.y { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/main.rs:8:13 [INFO] [stdout] | [INFO] [stdout] 8 | Err(err) => None, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Win` is never constructed [INFO] [stdout] --> src/minesweeper.rs:127:5 [INFO] [stdout] | [INFO] [stdout] 126 | pub enum GameState { [INFO] [stdout] | --------- variant in this enum [INFO] [stdout] 127 | Win, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | stdin.read_line(&mut input); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 29 | let _ = stdin.read_line(&mut input); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/minesweeper.rs:207:25 [INFO] [stdout] | [INFO] [stdout] 207 | / match revealed { [INFO] [stdout] 208 | | HiddenState::Hidden => write!(&mut stdout, "⬜ "), [INFO] [stdout] 209 | | HiddenState::Flagged => write!(&mut stdout, "🚩 "), [INFO] [stdout] 210 | | HiddenState::Revealed => match state { [INFO] [stdout] ... | [INFO] [stdout] 214 | | }, [INFO] [stdout] 215 | | }; [INFO] [stdout] | |_________________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 207 | let _ = match revealed { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.60s [INFO] running `Command { std: "docker" "inspect" "31f732b363b67f7747618b8f046b69220c1f759d6a81841ef73454d2f8d4dce4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "31f732b363b67f7747618b8f046b69220c1f759d6a81841ef73454d2f8d4dce4", kill_on_drop: false }` [INFO] [stdout] 31f732b363b67f7747618b8f046b69220c1f759d6a81841ef73454d2f8d4dce4 [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] e313a14f0dbc3679483b45a1b79f23fb186996304b479e622f9e7ea14d764e52 [INFO] running `Command { std: "docker" "start" "-a" "e313a14f0dbc3679483b45a1b79f23fb186996304b479e622f9e7ea14d764e52", kill_on_drop: false }` [INFO] [stderr] Compiling minesweeper v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io::Stdin` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io::Stdin; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/minesweeper.rs:42:13 [INFO] [stdout] | [INFO] [stdout] 42 | for x in 0..dimensions.x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/minesweeper.rs:44:17 [INFO] [stdout] | [INFO] [stdout] 44 | for y in 0..dimensions.y { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/main.rs:8:13 [INFO] [stdout] | [INFO] [stdout] 8 | Err(err) => None, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Win` is never constructed [INFO] [stdout] --> src/minesweeper.rs:127:5 [INFO] [stdout] | [INFO] [stdout] 126 | pub enum GameState { [INFO] [stdout] | --------- variant in this enum [INFO] [stdout] 127 | Win, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | stdin.read_line(&mut input); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 29 | let _ = stdin.read_line(&mut input); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/minesweeper.rs:207:25 [INFO] [stdout] | [INFO] [stdout] 207 | / match revealed { [INFO] [stdout] 208 | | HiddenState::Hidden => write!(&mut stdout, "⬜ "), [INFO] [stdout] 209 | | HiddenState::Flagged => write!(&mut stdout, "🚩 "), [INFO] [stdout] 210 | | HiddenState::Revealed => match state { [INFO] [stdout] ... | [INFO] [stdout] 214 | | }, [INFO] [stdout] 215 | | }; [INFO] [stdout] | |_________________________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 207 | let _ = match revealed { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s [INFO] running `Command { std: "docker" "inspect" "e313a14f0dbc3679483b45a1b79f23fb186996304b479e622f9e7ea14d764e52", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e313a14f0dbc3679483b45a1b79f23fb186996304b479e622f9e7ea14d764e52", kill_on_drop: false }` [INFO] [stdout] e313a14f0dbc3679483b45a1b79f23fb186996304b479e622f9e7ea14d764e52