[INFO] fetching crate game-2048 0.5.1... [INFO] checking game-2048-0.5.1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744 [INFO] extracting crate game-2048 0.5.1 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate game-2048 0.5.1 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate game-2048 0.5.1 [INFO] finished tweaking crates.io crate game-2048 0.5.1 [INFO] tweaked toml for crates.io crate game-2048 0.5.1 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded matrix_display v0.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1399d1841e2f2756fd3f434187919b13602d6f8385c721c26c7c2d0b97b1b49c [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" "1399d1841e2f2756fd3f434187919b13602d6f8385c721c26c7c2d0b97b1b49c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1399d1841e2f2756fd3f434187919b13602d6f8385c721c26c7c2d0b97b1b49c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1399d1841e2f2756fd3f434187919b13602d6f8385c721c26c7c2d0b97b1b49c", kill_on_drop: false }` [INFO] [stdout] 1399d1841e2f2756fd3f434187919b13602d6f8385c721c26c7c2d0b97b1b49c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 334f02ee9b54ae8a87b2041ea345ba9a1485c1a256d6118d96f2b8aaa1a481d7 [INFO] running `Command { std: "docker" "start" "-a" "334f02ee9b54ae8a87b2041ea345ba9a1485c1a256d6118d96f2b8aaa1a481d7", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking matrix_display v0.3.0 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking termion v1.5.6 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking game-2048 v0.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated function `rand::sample`: renamed to seq::sample_iter [INFO] [stdout] --> src/board.rs:3:24 [INFO] [stdout] | [INFO] [stdout] 3 | use rand::{thread_rng, sample}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `rand::sample`: renamed to seq::sample_iter [INFO] [stdout] --> src/board.rs:57:22 [INFO] [stdout] | [INFO] [stdout] 57 | let mut fw = sample(&mut rng, 1..256, 17); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `rand::sample`: renamed to seq::sample_iter [INFO] [stdout] --> src/board.rs:3:24 [INFO] [stdout] | [INFO] [stdout] 3 | use rand::{thread_rng, sample}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `rand::sample`: renamed to seq::sample_iter [INFO] [stdout] --> src/board.rs:57:22 [INFO] [stdout] | [INFO] [stdout] 57 | let mut fw = sample(&mut rng, 1..256, 17); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: floating-point types cannot be used in patterns [INFO] [stdout] --> src/board.rs:22:22 [INFO] [stdout] | [INFO] [stdout] 22 | 1_f64 => (".".to_string(), col), [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #41620 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: floating-point types cannot be used in patterns [INFO] [stdout] --> src/board.rs:22:22 [INFO] [stdout] | [INFO] [stdout] 22 | 1_f64 => (".".to_string(), col), [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #41620 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: floating-point types cannot be used in patterns [INFO] [stdout] --> src/board.rs:22:22 [INFO] [stdout] | [INFO] [stdout] 22 | 1_f64 => (".".to_string(), col), [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #41620 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/game.rs:70:19 [INFO] [stdout] | [INFO] [stdout] 70 | .map(|mut row| { [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: floating-point types cannot be used in patterns [INFO] [stdout] --> src/board.rs:22:22 [INFO] [stdout] | [INFO] [stdout] 22 | 1_f64 => (".".to_string(), col), [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #41620 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/game.rs:70:19 [INFO] [stdout] | [INFO] [stdout] 70 | .map(|mut row| { [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: unused return value of `collect` that must be used [INFO] [stdout] --> src/game.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | / self.data [INFO] [stdout] 69 | | .chunks_mut(4) [INFO] [stdout] 70 | | .map(|mut row| { [INFO] [stdout] 71 | | let (new_row, new_score) = match dir { [INFO] [stdout] ... | [INFO] [stdout] 86 | | }) [INFO] [stdout] 87 | | .collect::>(); [INFO] [stdout] | |_________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/game.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | / self.data [INFO] [stdout] 69 | | .chunks_mut(4) [INFO] [stdout] 70 | | .map(|mut row| { [INFO] [stdout] 71 | | let (new_row, new_score) = match dir { [INFO] [stdout] ... | [INFO] [stdout] 86 | | }) [INFO] [stdout] 87 | | .collect::>(); [INFO] [stdout] | |_________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 9.95s [INFO] running `Command { std: "docker" "inspect" "334f02ee9b54ae8a87b2041ea345ba9a1485c1a256d6118d96f2b8aaa1a481d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "334f02ee9b54ae8a87b2041ea345ba9a1485c1a256d6118d96f2b8aaa1a481d7", kill_on_drop: false }` [INFO] [stdout] 334f02ee9b54ae8a87b2041ea345ba9a1485c1a256d6118d96f2b8aaa1a481d7