[INFO] cloning repository https://github.com/higgsofwolfram74/rwordfinder [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/higgsofwolfram74/rwordfinder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiggsofwolfram74%2Frwordfinder", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiggsofwolfram74%2Frwordfinder'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1b76e04c5a2a6fb501b91609b4206cc99d0644dd [INFO] checking higgsofwolfram74/rwordfinder against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiggsofwolfram74%2Frwordfinder" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/higgsofwolfram74/rwordfinder on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/higgsofwolfram74/rwordfinder [INFO] finished tweaking git repo https://github.com/higgsofwolfram74/rwordfinder [INFO] tweaked toml for git repo https://github.com/higgsofwolfram74/rwordfinder written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/higgsofwolfram74/rwordfinder already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--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 matrixmultiply v0.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", 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] 22f11d98b0d8611f10d46d00b52bec22982653372fd4700a01825f9711755afb [INFO] running `Command { std: "docker" "start" "-a" "22f11d98b0d8611f10d46d00b52bec22982653372fd4700a01825f9711755afb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "22f11d98b0d8611f10d46d00b52bec22982653372fd4700a01825f9711755afb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22f11d98b0d8611f10d46d00b52bec22982653372fd4700a01825f9711755afb", kill_on_drop: false }` [INFO] [stdout] 22f11d98b0d8611f10d46d00b52bec22982653372fd4700a01825f9711755afb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 71a27df855db07da568bb71b87e5cc851c35ce516bf0b720153954766bb2e450 [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" "71a27df855db07da568bb71b87e5cc851c35ce516bf0b720153954766bb2e450", kill_on_drop: false }` [INFO] [stderr] Checking rawpointer v0.2.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking matrixmultiply v0.3.0 [INFO] [stderr] Checking crossbeam-epoch v0.9.4 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking num-complex v0.4.0 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking rayon-core v1.9.0 [INFO] [stderr] Checking ndarray v0.15.1 [INFO] [stderr] Checking rayon v1.5.0 [INFO] [stderr] Checking wordfinder v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `ourword` [INFO] [stdout] --> src/lib.rs:249:17 [INFO] [stdout] | [INFO] [stdout] 249 | let ourword: String; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ourword` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `LONGEST_WORD` [INFO] [stdout] --> src/lib.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | const LONGEST_WORD: usize = 31; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `CurrentWord` [INFO] [stdout] --> src/lib.rs:85:8 [INFO] [stdout] | [INFO] [stdout] 85 | struct CurrentWord { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/lib.rs:94:8 [INFO] [stdout] | [INFO] [stdout] 94 | fn new() -> CurrentWord { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `last_letter` [INFO] [stdout] --> src/lib.rs:122:8 [INFO] [stdout] | [INFO] [stdout] 122 | fn last_letter(current_letter: LastandSecondLast, last_letter: LastandSecondLast) -> LastandSecondLast { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `DIRECTIONS` [INFO] [stdout] --> src/lib.rs:180:1 [INFO] [stdout] | [INFO] [stdout] 180 | const DIRECTIONS: [&'static str; 8] = ["Up", "Upleft", "Left", "Downleft", "Down", "Downright", "Right", "Upright"]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `letters` [INFO] [stdout] --> src/lib.rs:186:5 [INFO] [stdout] | [INFO] [stdout] 186 | letters: Letters [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `go` [INFO] [stdout] --> src/lib.rs:200:8 [INFO] [stdout] | [INFO] [stdout] 200 | fn go((row, column): (usize, usize), direction: &str) -> (usize, usize) { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `traverse` [INFO] [stdout] --> src/lib.rs:247:8 [INFO] [stdout] | [INFO] [stdout] 247 | fn traverse(&self, word: &mut CurrentWord, direction: &str) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `whatitdo` [INFO] [stdout] --> src/lib.rs:295:8 [INFO] [stdout] | [INFO] [stdout] 295 | fn whatitdo(&self, row: usize, column: usize) -> Option> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/lib.rs:309:37 [INFO] [stdout] | [INFO] [stdout] 309 | for direction in DIRECTIONS.into_iter() { [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` 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 #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ourword` [INFO] [stdout] --> src/lib.rs:249:17 [INFO] [stdout] | [INFO] [stdout] 249 | let ourword: String; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ourword` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `LONGEST_WORD` [INFO] [stdout] --> src/lib.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | const LONGEST_WORD: usize = 31; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `CurrentWord` [INFO] [stdout] --> src/lib.rs:85:8 [INFO] [stdout] | [INFO] [stdout] 85 | struct CurrentWord { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/lib.rs:94:8 [INFO] [stdout] | [INFO] [stdout] 94 | fn new() -> CurrentWord { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `last_letter` [INFO] [stdout] --> src/lib.rs:122:8 [INFO] [stdout] | [INFO] [stdout] 122 | fn last_letter(current_letter: LastandSecondLast, last_letter: LastandSecondLast) -> LastandSecondLast { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `DIRECTIONS` [INFO] [stdout] --> src/lib.rs:180:1 [INFO] [stdout] | [INFO] [stdout] 180 | const DIRECTIONS: [&'static str; 8] = ["Up", "Upleft", "Left", "Downleft", "Down", "Downright", "Right", "Upright"]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `letters` [INFO] [stdout] --> src/lib.rs:186:5 [INFO] [stdout] | [INFO] [stdout] 186 | letters: Letters [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `go` [INFO] [stdout] --> src/lib.rs:200:8 [INFO] [stdout] | [INFO] [stdout] 200 | fn go((row, column): (usize, usize), direction: &str) -> (usize, usize) { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `traverse` [INFO] [stdout] --> src/lib.rs:247:8 [INFO] [stdout] | [INFO] [stdout] 247 | fn traverse(&self, word: &mut CurrentWord, direction: &str) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `whatitdo` [INFO] [stdout] --> src/lib.rs:295:8 [INFO] [stdout] | [INFO] [stdout] 295 | fn whatitdo(&self, row: usize, column: usize) -> Option> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/lib.rs:309:37 [INFO] [stdout] | [INFO] [stdout] 309 | for direction in DIRECTIONS.into_iter() { [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` 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 #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.30s [INFO] running `Command { std: "docker" "inspect" "71a27df855db07da568bb71b87e5cc851c35ce516bf0b720153954766bb2e450", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "71a27df855db07da568bb71b87e5cc851c35ce516bf0b720153954766bb2e450", kill_on_drop: false }` [INFO] [stdout] 71a27df855db07da568bb71b87e5cc851c35ce516bf0b720153954766bb2e450