[INFO] cloning repository https://github.com/aarish98/rust_minesweeper [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aarish98/rust_minesweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faarish98%2Frust_minesweeper", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faarish98%2Frust_minesweeper'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5cd34bcef4b27a672175825015cab6f0a8251313 [INFO] building aarish98/rust_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%2Faarish98%2Frust_minesweeper" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/aarish98/rust_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/aarish98/rust_minesweeper [INFO] finished tweaking git repo https://github.com/aarish98/rust_minesweeper [INFO] tweaked toml for git repo https://github.com/aarish98/rust_minesweeper written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/aarish98/rust_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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ba1b8956aeabf82398d3f7a7303dfe6ff610680983a5f389c16323c201df22b5 [INFO] running `Command { std: "docker" "start" "-a" "ba1b8956aeabf82398d3f7a7303dfe6ff610680983a5f389c16323c201df22b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ba1b8956aeabf82398d3f7a7303dfe6ff610680983a5f389c16323c201df22b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba1b8956aeabf82398d3f7a7303dfe6ff610680983a5f389c16323c201df22b5", kill_on_drop: false }` [INFO] [stdout] ba1b8956aeabf82398d3f7a7303dfe6ff610680983a5f389c16323c201df22b5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3c346d75df14371f1096de5b0ea7461b9e2e35afedc54bacebdf0926e66961b1 [INFO] running `Command { std: "docker" "start" "-a" "3c346d75df14371f1096de5b0ea7461b9e2e35afedc54bacebdf0926e66961b1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.142 [INFO] [stderr] Compiling getrandom v0.2.9 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling rust_minesweeper v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `collections::btree_map::Range` [INFO] [stdout] --> src/main.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{io, collections::btree_map::Range}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `grid` [INFO] [stdout] --> src/main.rs:69:17 [INFO] [stdout] | [INFO] [stdout] 69 | let mut grid = [[0u8; 4]; 6]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_grid` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mineSweeper` [INFO] [stdout] --> src/main.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mineSweeper` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | let mut grid = [[0u8; 4]; 6]; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `width`, `height`, `open_cells`, `mines`, and `flagged_cells` are never read [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct MineSweeper { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] 7 | width: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 8 | height: i32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 9 | open_cells: Vec, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 10 | mines: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 11 | flagged_cells: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mineSweeper` should have a snake case name [INFO] [stdout] --> src/main.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case: `mine_sweeper` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.74s [INFO] running `Command { std: "docker" "inspect" "3c346d75df14371f1096de5b0ea7461b9e2e35afedc54bacebdf0926e66961b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c346d75df14371f1096de5b0ea7461b9e2e35afedc54bacebdf0926e66961b1", kill_on_drop: false }` [INFO] [stdout] 3c346d75df14371f1096de5b0ea7461b9e2e35afedc54bacebdf0926e66961b1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2f260c9aafd291eace21eaf56647c7205efc90561d61cf73517b194a870b151b [INFO] running `Command { std: "docker" "start" "-a" "2f260c9aafd291eace21eaf56647c7205efc90561d61cf73517b194a870b151b", kill_on_drop: false }` [INFO] [stderr] Compiling rust_minesweeper v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `collections::btree_map::Range` [INFO] [stdout] --> src/main.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{io, collections::btree_map::Range}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `grid` [INFO] [stdout] --> src/main.rs:69:17 [INFO] [stdout] | [INFO] [stdout] 69 | let mut grid = [[0u8; 4]; 6]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_grid` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mineSweeper` [INFO] [stdout] --> src/main.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mineSweeper` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | let mut grid = [[0u8; 4]; 6]; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `width`, `height`, `open_cells`, `mines`, and `flagged_cells` are never read [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct MineSweeper { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] 7 | width: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 8 | height: i32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 9 | open_cells: Vec, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 10 | mines: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 11 | flagged_cells: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mineSweeper` should have a snake case name [INFO] [stdout] --> src/main.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let mut mineSweeper = MineSweeper::new(grid_size, grid_size, (0.25_f64 * (grid_size* grid_size) as f64).floor() as usize ); [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case: `mine_sweeper` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s [INFO] running `Command { std: "docker" "inspect" "2f260c9aafd291eace21eaf56647c7205efc90561d61cf73517b194a870b151b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f260c9aafd291eace21eaf56647c7205efc90561d61cf73517b194a870b151b", kill_on_drop: false }` [INFO] [stdout] 2f260c9aafd291eace21eaf56647c7205efc90561d61cf73517b194a870b151b