[INFO] cloning repository https://github.com/mtrefilek/advent-of-code-2021-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mtrefilek/advent-of-code-2021-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtrefilek%2Fadvent-of-code-2021-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtrefilek%2Fadvent-of-code-2021-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b8219da128ec0198e0194280f9378899feb3e0f5 [INFO] testing mtrefilek/advent-of-code-2021-rust against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtrefilek%2Fadvent-of-code-2021-rust" "/workspace/builds/worker-25/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mtrefilek/advent-of-code-2021-rust on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mtrefilek/advent-of-code-2021-rust [INFO] finished tweaking git repo https://github.com/mtrefilek/advent-of-code-2021-rust [INFO] tweaked toml for git repo https://github.com/mtrefilek/advent-of-code-2021-rust written to /workspace/builds/worker-25/source/Cargo.toml [INFO] crate git repo https://github.com/mtrefilek/advent-of-code-2021-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5a5bfeadcf7efda0c7fbeb712a59a8cbe7e27a4d5956b138bf064f8d1a27d6f6 [INFO] running `Command { std: "docker" "start" "-a" "5a5bfeadcf7efda0c7fbeb712a59a8cbe7e27a4d5956b138bf064f8d1a27d6f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5a5bfeadcf7efda0c7fbeb712a59a8cbe7e27a4d5956b138bf064f8d1a27d6f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5a5bfeadcf7efda0c7fbeb712a59a8cbe7e27a4d5956b138bf064f8d1a27d6f6", kill_on_drop: false }` [INFO] [stdout] 5a5bfeadcf7efda0c7fbeb712a59a8cbe7e27a4d5956b138bf064f8d1a27d6f6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9d56f41433a3dc84b4572a1a048526c707be90a48812149bcdc8e73f6edd68d6 [INFO] running `Command { std: "docker" "start" "-a" "9d56f41433a3dc84b4572a1a048526c707be90a48812149bcdc8e73f6edd68d6", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling syn v1.0.82 [INFO] [stderr] Compiling libc v0.2.108 [INFO] [stderr] Compiling pin-project-lite v0.2.7 [INFO] [stderr] Compiling futures-core v0.3.18 [INFO] [stderr] Compiling pkg-config v0.3.22 [INFO] [stderr] Compiling futures-task v0.3.18 [INFO] [stderr] Compiling futures-sink v0.3.18 [INFO] [stderr] Compiling futures-channel v0.3.18 [INFO] [stderr] Compiling once_cell v1.8.0 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling futures-util v0.3.18 [INFO] [stderr] Compiling hashbrown v0.11.2 [INFO] [stderr] Compiling slab v0.4.5 [INFO] [stderr] Compiling matches v0.1.9 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling futures-io v0.3.18 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling ryu v1.0.6 [INFO] [stderr] Compiling openssl v0.10.38 [INFO] [stderr] Compiling const_fn v0.4.8 [INFO] [stderr] Compiling native-tls v0.2.8 [INFO] [stderr] Compiling unicode-bidi v0.3.7 [INFO] [stderr] Compiling serde_json v1.0.72 [INFO] [stderr] Compiling openssl-probe v0.1.4 [INFO] [stderr] Compiling encoding_rs v0.8.29 [INFO] [stderr] Compiling psl-types v2.0.9 [INFO] [stderr] Compiling ipnet v2.3.1 [INFO] [stderr] Compiling tokio v1.14.0 [INFO] [stderr] Compiling standback v0.2.17 [INFO] [stderr] Compiling tinyvec v1.5.1 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling time v0.2.27 [INFO] [stderr] Compiling cookie v0.15.1 [INFO] [stderr] Compiling form_urlencoded v1.0.1 [INFO] [stderr] Compiling tracing v0.1.29 [INFO] [stderr] Compiling http v0.2.5 [INFO] [stderr] Compiling openssl-sys v0.9.71 [INFO] [stderr] Compiling unicode-normalization v0.1.19 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Compiling mio v0.7.14 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling socket2 v0.4.2 [INFO] [stderr] Compiling http-body v0.4.4 [INFO] [stderr] Compiling parking_lot v0.11.2 [INFO] [stderr] Compiling idna v0.2.3 [INFO] [stderr] Compiling url v2.2.2 [INFO] [stderr] Compiling publicsuffix v2.1.1 [INFO] [stderr] Compiling tokio-macros v1.6.0 [INFO] [stderr] Compiling futures-macro v0.3.18 [INFO] [stderr] Compiling time-macros-impl v0.1.2 [INFO] [stderr] Compiling time-macros v0.1.1 [INFO] [stderr] Compiling futures-executor v0.3.18 [INFO] [stderr] Compiling futures v0.3.18 [INFO] [stderr] Compiling tokio-util v0.6.9 [INFO] [stderr] Compiling tokio-native-tls v0.3.0 [INFO] [stderr] Compiling h2 v0.3.7 [INFO] [stderr] Compiling serde_urlencoded v0.7.0 [INFO] [stderr] Compiling cookie_store v0.15.1 [INFO] [stderr] Compiling hyper v0.14.15 [INFO] [stderr] Compiling hyper-tls v0.5.0 [INFO] [stderr] Compiling reqwest v0.11.7 [INFO] [stderr] Compiling aoc2021 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `max_grad` is never read [INFO] [stdout] --> src/main.rs:334:25 [INFO] [stdout] | [INFO] [stdout] 334 | max_grad = height - h; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:459:22 [INFO] [stdout] | [INFO] [stdout] 459 | Some(i) => {}, [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:467:26 [INFO] [stdout] | [INFO] [stdout] 467 | Some(i) => {}, [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:493:22 [INFO] [stdout] | [INFO] [stdout] 493 | Some(i) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:500:34 [INFO] [stdout] | [INFO] [stdout] 500 | ... Some(i) => {}, [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `found` [INFO] [stdout] --> src/main.rs:513:17 [INFO] [stdout] | [INFO] [stdout] 513 | let mut found:char = 'z'; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_found` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:516:18 [INFO] [stdout] | [INFO] [stdout] 516 | for (i, char2) in &key { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:528:18 [INFO] [stdout] | [INFO] [stdout] 528 | for (i, char2) in &key { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l` [INFO] [stdout] --> src/main.rs:587:13 [INFO] [stdout] | [INFO] [stdout] 587 | let l:Vec<&str> = v[0].split(" ").collect(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:656:9 [INFO] [stdout] | [INFO] [stdout] 656 | for i in 0 .. 7 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:659:9 [INFO] [stdout] | [INFO] [stdout] 659 | for i in 0 .. 9 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/main.rs:675:17 [INFO] [stdout] | [INFO] [stdout] 675 | Err(err) => {println!("Error: {}", s); vec[3] += 1;} [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:682:13 [INFO] [stdout] | [INFO] [stdout] 682 | let x = vec[mod_i]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:703:9 [INFO] [stdout] | [INFO] [stdout] 703 | for i in 0 .. 7 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:706:9 [INFO] [stdout] | [INFO] [stdout] 706 | for i in 0 .. 9 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/main.rs:722:17 [INFO] [stdout] | [INFO] [stdout] 722 | Err(err) => {println!("Error: {}", s); vec[3] += 1;} [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:728:13 [INFO] [stdout] | [INFO] [stdout] 728 | let x = vec[mod_i]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `last_num` is assigned to, but never used [INFO] [stdout] --> src/main.rs:876:13 [INFO] [stdout] | [INFO] [stdout] 876 | let mut last_num = 0; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_last_num` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `index2` is assigned to, but never used [INFO] [stdout] --> src/main.rs:894:25 [INFO] [stdout] | [INFO] [stdout] 894 | let mut index2 = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_index2` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_num` is never read [INFO] [stdout] --> src/main.rs:942:17 [INFO] [stdout] | [INFO] [stdout] 942 | last_num = num_i; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `solved` is never read [INFO] [stdout] --> src/main.rs:943:17 [INFO] [stdout] | [INFO] [stdout] 943 | solved = false; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `last_num` is assigned to, but never used [INFO] [stdout] --> src/main.rs:989:13 [INFO] [stdout] | [INFO] [stdout] 989 | let mut last_num = 0; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_last_num` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `index2` is assigned to, but never used [INFO] [stdout] --> src/main.rs:1007:25 [INFO] [stdout] | [INFO] [stdout] 1007 | let mut index2 = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_index2` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_num` is never read [INFO] [stdout] --> src/main.rs:1055:17 [INFO] [stdout] | [INFO] [stdout] 1055 | last_num = num_i; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `solved` is never read [INFO] [stdout] --> src/main.rs:1056:17 [INFO] [stdout] | [INFO] [stdout] 1056 | solved = false; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `basin_memoize` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/main.rs:151:21 [INFO] [stdout] | [INFO] [stdout] 147 | match basin_memoize.get(&(x, y)) { [INFO] [stdout] | -------------------------- immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 151 | basin_memoize.insert((x, y), *i); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^--^ [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow later used here [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:513:13 [INFO] [stdout] | [INFO] [stdout] 513 | let mut found:char = 'z'; [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:632:9 [INFO] [stdout] | [INFO] [stdout] 632 | let mut until = if b.len() % 2 == 0 { 2 } else { 1 }; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:745:9 [INFO] [stdout] | [INFO] [stdout] 745 | let mut lines = resp.lines(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:806:9 [INFO] [stdout] | [INFO] [stdout] 806 | let mut lines = resp.lines(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:859:17 [INFO] [stdout] | [INFO] [stdout] 859 | let mut board: Vec> = Vec::new(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:867:21 [INFO] [stdout] | [INFO] [stdout] 867 | let mut tup = (num, false); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:882:13 [INFO] [stdout] | [INFO] [stdout] 882 | for mut board in boards.iter_mut() { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:893:17 [INFO] [stdout] | [INFO] [stdout] 893 | for mut row in board.iter_mut() { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:972:17 [INFO] [stdout] | [INFO] [stdout] 972 | let mut board: Vec> = Vec::new(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:980:21 [INFO] [stdout] | [INFO] [stdout] 980 | let mut tup = (num, false); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:995:13 [INFO] [stdout] | [INFO] [stdout] 995 | for mut board in boards.iter_mut() { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:1006:17 [INFO] [stdout] | [INFO] [stdout] 1006 | for mut row in board.iter_mut() { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 38 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 39.68s [INFO] running `Command { std: "docker" "inspect" "9d56f41433a3dc84b4572a1a048526c707be90a48812149bcdc8e73f6edd68d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d56f41433a3dc84b4572a1a048526c707be90a48812149bcdc8e73f6edd68d6", kill_on_drop: false }` [INFO] [stdout] 9d56f41433a3dc84b4572a1a048526c707be90a48812149bcdc8e73f6edd68d6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3d39b8e35c97cdd519a085567a5895a3f024e1a1db7e2ddbdbdbb443fda391a2 [INFO] running `Command { std: "docker" "start" "-a" "3d39b8e35c97cdd519a085567a5895a3f024e1a1db7e2ddbdbdbb443fda391a2", kill_on_drop: false }` [INFO] [stderr] Compiling aoc2021 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `max_grad` is never read [INFO] [stdout] --> src/main.rs:334:25 [INFO] [stdout] | [INFO] [stdout] 334 | max_grad = height - h; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:459:22 [INFO] [stdout] | [INFO] [stdout] 459 | Some(i) => {}, [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:467:26 [INFO] [stdout] | [INFO] [stdout] 467 | Some(i) => {}, [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:493:22 [INFO] [stdout] | [INFO] [stdout] 493 | Some(i) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:500:34 [INFO] [stdout] | [INFO] [stdout] 500 | ... Some(i) => {}, [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `found` [INFO] [stdout] --> src/main.rs:513:17 [INFO] [stdout] | [INFO] [stdout] 513 | let mut found:char = 'z'; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_found` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:516:18 [INFO] [stdout] | [INFO] [stdout] 516 | for (i, char2) in &key { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:528:18 [INFO] [stdout] | [INFO] [stdout] 528 | for (i, char2) in &key { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l` [INFO] [stdout] --> src/main.rs:587:13 [INFO] [stdout] | [INFO] [stdout] 587 | let l:Vec<&str> = v[0].split(" ").collect(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:656:9 [INFO] [stdout] | [INFO] [stdout] 656 | for i in 0 .. 7 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:659:9 [INFO] [stdout] | [INFO] [stdout] 659 | for i in 0 .. 9 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/main.rs:675:17 [INFO] [stdout] | [INFO] [stdout] 675 | Err(err) => {println!("Error: {}", s); vec[3] += 1;} [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:682:13 [INFO] [stdout] | [INFO] [stdout] 682 | let x = vec[mod_i]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:703:9 [INFO] [stdout] | [INFO] [stdout] 703 | for i in 0 .. 7 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:706:9 [INFO] [stdout] | [INFO] [stdout] 706 | for i in 0 .. 9 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/main.rs:722:17 [INFO] [stdout] | [INFO] [stdout] 722 | Err(err) => {println!("Error: {}", s); vec[3] += 1;} [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:728:13 [INFO] [stdout] | [INFO] [stdout] 728 | let x = vec[mod_i]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `last_num` is assigned to, but never used [INFO] [stdout] --> src/main.rs:876:13 [INFO] [stdout] | [INFO] [stdout] 876 | let mut last_num = 0; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_last_num` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `index2` is assigned to, but never used [INFO] [stdout] --> src/main.rs:894:25 [INFO] [stdout] | [INFO] [stdout] 894 | let mut index2 = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_index2` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_num` is never read [INFO] [stdout] --> src/main.rs:942:17 [INFO] [stdout] | [INFO] [stdout] 942 | last_num = num_i; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `solved` is never read [INFO] [stdout] --> src/main.rs:943:17 [INFO] [stdout] | [INFO] [stdout] 943 | solved = false; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `last_num` is assigned to, but never used [INFO] [stdout] --> src/main.rs:989:13 [INFO] [stdout] | [INFO] [stdout] 989 | let mut last_num = 0; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_last_num` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `index2` is assigned to, but never used [INFO] [stdout] --> src/main.rs:1007:25 [INFO] [stdout] | [INFO] [stdout] 1007 | let mut index2 = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_index2` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_num` is never read [INFO] [stdout] --> src/main.rs:1055:17 [INFO] [stdout] | [INFO] [stdout] 1055 | last_num = num_i; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `solved` is never read [INFO] [stdout] --> src/main.rs:1056:17 [INFO] [stdout] | [INFO] [stdout] 1056 | solved = false; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `basin_memoize` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/main.rs:151:21 [INFO] [stdout] | [INFO] [stdout] 147 | match basin_memoize.get(&(x, y)) { [INFO] [stdout] | -------------------------- immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 151 | basin_memoize.insert((x, y), *i); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^--^ [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow later used here [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:513:13 [INFO] [stdout] | [INFO] [stdout] 513 | let mut found:char = 'z'; [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:632:9 [INFO] [stdout] | [INFO] [stdout] 632 | let mut until = if b.len() % 2 == 0 { 2 } else { 1 }; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:745:9 [INFO] [stdout] | [INFO] [stdout] 745 | let mut lines = resp.lines(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:806:9 [INFO] [stdout] | [INFO] [stdout] 806 | let mut lines = resp.lines(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:859:17 [INFO] [stdout] | [INFO] [stdout] 859 | let mut board: Vec> = Vec::new(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:867:21 [INFO] [stdout] | [INFO] [stdout] 867 | let mut tup = (num, false); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:882:13 [INFO] [stdout] | [INFO] [stdout] 882 | for mut board in boards.iter_mut() { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:893:17 [INFO] [stdout] | [INFO] [stdout] 893 | for mut row in board.iter_mut() { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:972:17 [INFO] [stdout] | [INFO] [stdout] 972 | let mut board: Vec> = Vec::new(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:980:21 [INFO] [stdout] | [INFO] [stdout] 980 | let mut tup = (num, false); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:995:13 [INFO] [stdout] | [INFO] [stdout] 995 | for mut board in boards.iter_mut() { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:1006:17 [INFO] [stdout] | [INFO] [stdout] 1006 | for mut row in board.iter_mut() { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 38 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.38s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/aoc2021-edd1338b087528d4) [INFO] running `Command { std: "docker" "inspect" "3d39b8e35c97cdd519a085567a5895a3f024e1a1db7e2ddbdbdbb443fda391a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d39b8e35c97cdd519a085567a5895a3f024e1a1db7e2ddbdbdbb443fda391a2", kill_on_drop: false }` [INFO] [stdout] 3d39b8e35c97cdd519a085567a5895a3f024e1a1db7e2ddbdbdbb443fda391a2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 209a5832f570b04585dfc3b269afa4e28b5f47402279fa5de76cdd858cc31eaa [INFO] running `Command { std: "docker" "start" "-a" "209a5832f570b04585dfc3b269afa4e28b5f47402279fa5de76cdd858cc31eaa", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: value assigned to `max_grad` is never read [INFO] [stderr] --> src/main.rs:334:25 [INFO] [stderr] | [INFO] [stderr] 334 | max_grad = height - h; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:459:22 [INFO] [stderr] | [INFO] [stderr] 459 | Some(i) => {}, [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:467:26 [INFO] [stderr] | [INFO] [stderr] 467 | Some(i) => {}, [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:493:22 [INFO] [stderr] | [INFO] [stderr] 493 | Some(i) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:500:34 [INFO] [stderr] | [INFO] [stderr] 500 | ... Some(i) => {}, [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `found` [INFO] [stderr] --> src/main.rs:513:17 [INFO] [stderr] | [INFO] [stderr] 513 | let mut found:char = 'z'; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_found` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:516:18 [INFO] [stderr] | [INFO] [stderr] 516 | for (i, char2) in &key { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:528:18 [INFO] [stderr] | [INFO] [stderr] 528 | for (i, char2) in &key { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `l` [INFO] [stderr] --> src/main.rs:587:13 [INFO] [stderr] | [INFO] [stderr] 587 | let l:Vec<&str> = v[0].split(" ").collect(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:656:9 [INFO] [stderr] | [INFO] [stderr] 656 | for i in 0 .. 7 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:659:9 [INFO] [stderr] | [INFO] [stderr] 659 | for i in 0 .. 9 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:675:17 [INFO] [stderr] | [INFO] [stderr] 675 | Err(err) => {println!("Error: {}", s); vec[3] += 1;} [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:682:13 [INFO] [stderr] | [INFO] [stderr] 682 | let x = vec[mod_i]; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:703:9 [INFO] [stderr] | [INFO] [stderr] 703 | for i in 0 .. 7 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:706:9 [INFO] [stderr] | [INFO] [stderr] 706 | for i in 0 .. 9 { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:722:17 [INFO] [stderr] | [INFO] [stderr] 722 | Err(err) => {println!("Error: {}", s); vec[3] += 1;} [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:728:13 [INFO] [stderr] | [INFO] [stderr] 728 | let x = vec[mod_i]; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: variable `last_num` is assigned to, but never used [INFO] [stderr] --> src/main.rs:876:13 [INFO] [stderr] | [INFO] [stderr] 876 | let mut last_num = 0; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_last_num` instead [INFO] [stderr] [INFO] [stderr] warning: variable `index2` is assigned to, but never used [INFO] [stderr] --> src/main.rs:894:25 [INFO] [stderr] | [INFO] [stderr] 894 | let mut index2 = 0; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_index2` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `last_num` is never read [INFO] [stderr] --> src/main.rs:942:17 [INFO] [stderr] | [INFO] [stderr] 942 | last_num = num_i; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `solved` is never read [INFO] [stderr] --> src/main.rs:943:17 [INFO] [stderr] | [INFO] [stderr] 943 | solved = false; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable `last_num` is assigned to, but never used [INFO] [stderr] --> src/main.rs:989:13 [INFO] [stderr] | [INFO] [stderr] 989 | let mut last_num = 0; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_last_num` instead [INFO] [stderr] [INFO] [stderr] warning: variable `index2` is assigned to, but never used [INFO] [stderr] --> src/main.rs:1007:25 [INFO] [stderr] | [INFO] [stderr] 1007 | let mut index2 = 0; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_index2` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `last_num` is never read [INFO] [stderr] --> src/main.rs:1055:17 [INFO] [stderr] | [INFO] [stderr] 1055 | last_num = num_i; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `solved` is never read [INFO] [stderr] --> src/main.rs:1056:17 [INFO] [stderr] | [INFO] [stderr] 1056 | solved = false; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `basin_memoize` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/main.rs:151:21 [INFO] [stderr] | [INFO] [stderr] 147 | match basin_memoize.get(&(x, y)) { [INFO] [stderr] | -------------------------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 151 | basin_memoize.insert((x, y), *i); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^--^ [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow later used here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:513:13 [INFO] [stderr] | [INFO] [stderr] 513 | let mut found:char = 'z'; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:632:9 [INFO] [stderr] | [INFO] [stderr] 632 | let mut until = if b.len() % 2 == 0 { 2 } else { 1 }; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:745:9 [INFO] [stderr] | [INFO] [stderr] 745 | let mut lines = resp.lines(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:806:9 [INFO] [stderr] | [INFO] [stderr] 806 | let mut lines = resp.lines(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:859:17 [INFO] [stderr] | [INFO] [stderr] 859 | let mut board: Vec> = Vec::new(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:867:21 [INFO] [stderr] | [INFO] [stderr] 867 | let mut tup = (num, false); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:882:13 [INFO] [stderr] | [INFO] [stderr] 882 | for mut board in boards.iter_mut() { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:893:17 [INFO] [stderr] | [INFO] [stderr] 893 | for mut row in board.iter_mut() { [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:972:17 [INFO] [stderr] | [INFO] [stderr] 972 | let mut board: Vec> = Vec::new(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:980:21 [INFO] [stderr] | [INFO] [stderr] 980 | let mut tup = (num, false); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:995:13 [INFO] [stderr] | [INFO] [stderr] 995 | for mut board in boards.iter_mut() { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:1006:17 [INFO] [stderr] | [INFO] [stderr] 1006 | for mut row in board.iter_mut() { [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: `aoc2021` (bin "aoc2021" test) generated 38 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/aoc2021-edd1338b087528d4) [INFO] [stdout] [INFO] [stdout] running 9 tests [INFO] [stdout] test tests::eight_one_works ... ok [INFO] [stdout] test tests::nine_one_works ... ok [INFO] [stdout] test tests::five_two_works ... ok [INFO] [stdout] test tests::seven_one_works ... ok [INFO] [stdout] test tests::seven_two_works ... ok [INFO] [stdout] test tests::six_one_works ... ok [INFO] [stdout] test tests::six_two_works ... ok [INFO] [stdout] test tests::nine_two_works ... ok [INFO] [stdout] test tests::eight_two_works ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "209a5832f570b04585dfc3b269afa4e28b5f47402279fa5de76cdd858cc31eaa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "209a5832f570b04585dfc3b269afa4e28b5f47402279fa5de76cdd858cc31eaa", kill_on_drop: false }` [INFO] [stdout] 209a5832f570b04585dfc3b269afa4e28b5f47402279fa5de76cdd858cc31eaa