[INFO] cloning repository https://github.com/usagrada/osero [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/usagrada/osero" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fusagrada%2Fosero", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fusagrada%2Fosero'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 01fa1f5937358ab50636e3e0393d07b6b14acf56 [INFO] testing usagrada/osero against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fusagrada%2Fosero" "/workspace/builds/worker-78/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-78/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/usagrada/osero on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/usagrada/osero [INFO] finished tweaking git repo https://github.com/usagrada/osero [INFO] tweaked toml for git repo https://github.com/usagrada/osero written to /workspace/builds/worker-78/source/Cargo.toml [INFO] crate git repo https://github.com/usagrada/osero already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", 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] Downloading crates ... [INFO] [stderr] Downloaded parking_lot_core v0.8.5 [INFO] [stderr] Downloaded instant v0.1.11 [INFO] [stderr] Downloaded time v0.2.27 [INFO] [stderr] Downloaded typenum v1.14.0 [INFO] [stderr] Downloaded thiserror v1.0.30 [INFO] [stderr] Downloaded thiserror-impl v1.0.30 [INFO] [stderr] Downloaded parking_lot v0.11.2 [INFO] [stderr] Downloaded tracing-futures v0.2.5 [INFO] [stderr] Downloaded cpufeatures v0.2.1 [INFO] [stderr] Downloaded getrandom v0.1.16 [INFO] [stderr] Downloaded pin-project-lite v0.1.12 [INFO] [stderr] Downloaded proc-macro-nested v0.1.7 [INFO] [stderr] Downloaded const_fn v0.4.8 [INFO] [stderr] Downloaded sha-1 v0.9.8 [INFO] [stderr] Downloaded actix-files v0.5.0 [INFO] [stderr] Downloaded v_htmlescape v0.12.0 [INFO] [stderr] Downloaded actix-router v0.2.7 [INFO] [stderr] Downloaded time-macros-impl v0.1.2 [INFO] [stderr] Downloaded signal-hook-registry v1.4.0 [INFO] [stderr] Downloaded nom v4.2.3 [INFO] [stderr] Downloaded v_escape_derive v0.8.5 [INFO] [stderr] Downloaded actix-cors v0.5.4 [INFO] [stderr] Downloaded version_check v0.1.5 [INFO] [stderr] Downloaded pin-project v0.4.28 [INFO] [stderr] Downloaded pin-project-internal v1.0.8 [INFO] [stderr] Downloaded cookie v0.14.4 [INFO] [stderr] Downloaded async-trait v0.1.51 [INFO] [stderr] Downloaded cc v1.0.71 [INFO] [stderr] Downloaded derive_more v0.99.16 [INFO] [stderr] Downloaded unicode-segmentation v1.8.0 [INFO] [stderr] Downloaded crossbeam-channel v0.4.4 [INFO] [stderr] Downloaded smallvec v1.7.0 [INFO] [stderr] Downloaded standback v0.2.17 [INFO] [stderr] Downloaded pin-project v1.0.8 [INFO] [stderr] Downloaded actix-web-actors v3.0.0 [INFO] [stderr] Downloaded v_escape v0.15.0 [INFO] [stderr] Downloaded tokio v0.2.25 [INFO] [stderr] Downloaded buf-min v0.4.0 [INFO] [stderr] Downloaded actix-http v2.2.1 [INFO] [stderr] Downloaded bytestring v1.0.0 [INFO] [stderr] Downloaded futures v0.3.17 [INFO] [stderr] Downloaded actix_derive v0.5.0 [INFO] [stderr] Downloaded trust-dns-resolver v0.19.7 [INFO] [stderr] Downloaded actix v0.10.0 [INFO] [stderr] Downloaded futures-macro v0.3.17 [INFO] [stderr] Downloaded pin-project-internal v0.4.28 [INFO] [stderr] Downloaded trust-dns-proto v0.19.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 451343e1e9408e8cf09551ffa623dd87fbf91492382c41c0da7e4e4ceea2c4ac [INFO] running `Command { std: "docker" "start" "-a" "451343e1e9408e8cf09551ffa623dd87fbf91492382c41c0da7e4e4ceea2c4ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "451343e1e9408e8cf09551ffa623dd87fbf91492382c41c0da7e4e4ceea2c4ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "451343e1e9408e8cf09551ffa623dd87fbf91492382c41c0da7e4e4ceea2c4ac", kill_on_drop: false }` [INFO] [stdout] 451343e1e9408e8cf09551ffa623dd87fbf91492382c41c0da7e4e4ceea2c4ac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 227f751b684d78d44d9c33a4b87e9e72a3fe4e18224f7a34f3141b61e30479a0 [INFO] running `Command { std: "docker" "start" "-a" "227f751b684d78d44d9c33a4b87e9e72a3fe4e18224f7a34f3141b61e30479a0", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling syn v1.0.80 [INFO] [stderr] Compiling libc v0.2.103 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling futures-core v0.3.17 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling futures-sink v0.3.17 [INFO] [stderr] Compiling futures-channel v0.3.17 [INFO] [stderr] Compiling bytes v0.5.6 [INFO] [stderr] Compiling pin-project-lite v0.2.7 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling futures-io v0.3.17 [INFO] [stderr] Compiling futures-task v0.3.17 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling pin-project-lite v0.1.12 [INFO] [stderr] Compiling smallvec v1.7.0 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Compiling pin-project-internal v0.4.28 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling convert_case v0.4.0 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling percent-encoding v2.1.0 [INFO] [stderr] Compiling tinyvec_macros v0.1.0 [INFO] [stderr] Compiling matches v0.1.9 [INFO] [stderr] Compiling copyless v0.1.5 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling typenum v1.14.0 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling async-trait v0.1.51 [INFO] [stderr] Compiling unicode-bidi v0.3.7 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling bytes v1.1.0 [INFO] [stderr] Compiling match_cfg v0.1.0 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling cc v1.0.71 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling linked-hash-map v0.5.4 [INFO] [stderr] Compiling const_fn v0.4.8 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Compiling hashbrown v0.11.2 [INFO] [stderr] Compiling adler v1.0.2 [INFO] [stderr] Compiling httparse v1.5.1 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling encoding_rs v0.8.28 [INFO] [stderr] Compiling mime v0.3.16 [INFO] [stderr] Compiling cpufeatures v0.2.1 [INFO] [stderr] Compiling opaque-debug v0.3.0 [INFO] [stderr] Compiling base64 v0.13.0 [INFO] [stderr] Compiling language-tags v0.2.2 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling v_escape v0.15.0 [INFO] [stderr] Compiling once_cell v1.8.0 [INFO] [stderr] Compiling v_htmlescape v0.12.0 [INFO] [stderr] Compiling futures-macro v0.3.17 [INFO] [stderr] Compiling futures-util v0.3.17 [INFO] [stderr] Compiling instant v0.1.11 [INFO] [stderr] Compiling lock_api v0.4.5 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling tracing-core v0.1.21 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling fxhash v0.2.1 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling tinyvec v1.5.0 [INFO] [stderr] Compiling form_urlencoded v1.0.1 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling bytestring v1.0.0 [INFO] [stderr] Compiling buf-min v0.4.0 [INFO] [stderr] Compiling standback v0.2.17 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Compiling time v0.2.27 [INFO] [stderr] Compiling cookie v0.14.4 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Compiling lru-cache v0.1.2 [INFO] [stderr] Compiling http v0.2.5 [INFO] [stderr] Compiling tracing v0.1.29 [INFO] [stderr] Compiling brotli-sys v0.3.2 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling unicode-normalization v0.1.19 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling hostname v0.3.1 [INFO] [stderr] Compiling socket2 v0.3.19 [INFO] [stderr] Compiling resolv-conf v0.7.0 [INFO] [stderr] Compiling threadpool v1.8.1 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling parking_lot v0.11.2 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling mime_guess v2.0.3 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling crossbeam-channel v0.4.4 [INFO] [stderr] Compiling flate2 v1.0.22 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling idna v0.2.3 [INFO] [stderr] Compiling digest v0.9.0 [INFO] [stderr] Compiling block-buffer v0.9.0 [INFO] [stderr] Compiling mio-uds v0.6.8 [INFO] [stderr] Compiling sha-1 v0.9.8 [INFO] [stderr] Compiling tokio v0.2.25 [INFO] [stderr] Compiling url v2.2.2 [INFO] [stderr] Compiling tokio-util v0.3.1 [INFO] [stderr] Compiling brotli2 v0.3.2 [INFO] [stderr] Compiling derive_more v0.99.16 [INFO] [stderr] Compiling actix-macros v0.1.3 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling enum-as-inner v0.3.3 [INFO] [stderr] Compiling time-macros-impl v0.1.2 [INFO] [stderr] Compiling pin-project-internal v1.0.8 [INFO] [stderr] Compiling actix-web-codegen v0.4.0 [INFO] [stderr] Compiling v_escape_derive v0.8.5 [INFO] [stderr] Compiling actix_derive v0.5.0 [INFO] [stderr] Compiling time-macros v0.1.1 [INFO] [stderr] Compiling thiserror v1.0.30 [INFO] [stderr] Compiling pin-project v0.4.28 [INFO] [stderr] Compiling pin-project v1.0.8 [INFO] [stderr] Compiling actix-codec v0.3.0 [INFO] [stderr] Compiling tracing-futures v0.2.5 [INFO] [stderr] Compiling actix-threadpool v0.3.3 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling actix-rt v1.1.1 [INFO] [stderr] Compiling actix-service v1.0.6 [INFO] [stderr] Compiling futures v0.3.17 [INFO] [stderr] Compiling h2 v0.2.7 [INFO] [stderr] Compiling trust-dns-proto v0.19.7 [INFO] [stderr] Compiling actix-utils v2.0.0 [INFO] [stderr] Compiling actix-server v1.0.4 [INFO] [stderr] Compiling actix-tls v2.0.0 [INFO] [stderr] Compiling actix-testing v1.0.1 [INFO] [stderr] Compiling trust-dns-resolver v0.19.7 [INFO] [stderr] Compiling serde_urlencoded v0.7.0 [INFO] [stderr] Compiling serde_json v1.0.68 [INFO] [stderr] Compiling actix-router v0.2.7 [INFO] [stderr] Compiling actix-connect v2.0.0 [INFO] [stderr] Compiling actix v0.10.0 [INFO] [stderr] Compiling actix-http v2.2.1 [INFO] [stderr] Compiling awc v2.0.3 [INFO] [stderr] Compiling actix-web v3.3.2 [INFO] [stderr] Compiling actix-files v0.5.0 [INFO] [stderr] Compiling actix-cors v0.5.4 [INFO] [stderr] Compiling actix-web-actors v3.0.0 [INFO] [stderr] Compiling rust-socket v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function is never used: `bfs` [INFO] [stdout] --> src/osero.rs:64:6 [INFO] [stdout] | [INFO] [stdout] 64 | fn bfs(&mut self) {} [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 32s [INFO] running `Command { std: "docker" "inspect" "227f751b684d78d44d9c33a4b87e9e72a3fe4e18224f7a34f3141b61e30479a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "227f751b684d78d44d9c33a4b87e9e72a3fe4e18224f7a34f3141b61e30479a0", kill_on_drop: false }` [INFO] [stdout] 227f751b684d78d44d9c33a4b87e9e72a3fe4e18224f7a34f3141b61e30479a0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f00cd7f0ea6d01da4bcb411548d0049bdd538ac2a1911a36ce30d1525595a798 [INFO] running `Command { std: "docker" "start" "-a" "f00cd7f0ea6d01da4bcb411548d0049bdd538ac2a1911a36ce30d1525595a798", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust-socket v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/osero.rs:309:7 [INFO] [stdout] | [INFO] [stdout] 309 | let mut board = Fields::new(); [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: associated function is never used: `bfs` [INFO] [stdout] --> src/osero.rs:64:6 [INFO] [stdout] | [INFO] [stdout] 64 | fn bfs(&mut self) {} [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 10.73s [INFO] running `Command { std: "docker" "inspect" "f00cd7f0ea6d01da4bcb411548d0049bdd538ac2a1911a36ce30d1525595a798", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f00cd7f0ea6d01da4bcb411548d0049bdd538ac2a1911a36ce30d1525595a798", kill_on_drop: false }` [INFO] [stdout] f00cd7f0ea6d01da4bcb411548d0049bdd538ac2a1911a36ce30d1525595a798 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "+1.60.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 565ae7a085548788871a2cc794d9c5ddfe0c590457ac1bd55357c60c426f4357 [INFO] running `Command { std: "docker" "start" "-a" "565ae7a085548788871a2cc794d9c5ddfe0c590457ac1bd55357c60c426f4357", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stdout] [INFO] [stderr] --> src/osero.rs:309:7 [INFO] [stdout] running 4 tests [INFO] [stderr] | [INFO] [stdout] test osero::test_col ... ok [INFO] [stderr] 309 | let mut board = Fields::new(); [INFO] [stdout] test osero::init_test ... ok [INFO] [stderr] | ----^^^^^ [INFO] [stdout] test osero::test_diag ... ok [INFO] [stderr] | | [INFO] [stdout] test osero::test_row ... ok [INFO] [stderr] | help: remove this `mut` [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `bfs` [INFO] [stderr] --> src/osero.rs:64:6 [INFO] [stderr] | [INFO] [stderr] 64 | fn bfs(&mut self) {} [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `rust-socket` (bin "rust-socket" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.99s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_socket-3fc2973af5fd0617) [INFO] running `Command { std: "docker" "inspect" "565ae7a085548788871a2cc794d9c5ddfe0c590457ac1bd55357c60c426f4357", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "565ae7a085548788871a2cc794d9c5ddfe0c590457ac1bd55357c60c426f4357", kill_on_drop: false }` [INFO] [stdout] 565ae7a085548788871a2cc794d9c5ddfe0c590457ac1bd55357c60c426f4357