[INFO] cloning repository https://github.com/neal-o-r/rust-scrabble [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neal-o-r/rust-scrabble" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneal-o-r%2Frust-scrabble", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneal-o-r%2Frust-scrabble'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d660bdb8d615d1ea25aa6b8f575bdb931a0587ab [INFO] building neal-o-r/rust-scrabble against master#461e8078010433ff7de2db2aaae8a3cfb0847215 for pr-94962 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneal-o-r%2Frust-scrabble" "/workspace/builds/worker-26/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/neal-o-r/rust-scrabble on toolchain 461e8078010433ff7de2db2aaae8a3cfb0847215 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/neal-o-r/rust-scrabble [INFO] finished tweaking git repo https://github.com/neal-o-r/rust-scrabble [INFO] tweaked toml for git repo https://github.com/neal-o-r/rust-scrabble written to /workspace/builds/worker-26/source/Cargo.toml [INFO] crate git repo https://github.com/neal-o-r/rust-scrabble already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "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 prettytable-rs v0.8.0 [INFO] [stderr] Downloaded term v0.5.2 [INFO] [stderr] Downloaded serde v1.0.132 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 83677d6315b8545a39ce3349274d1d411c9618ac81368b913f78d1b516c7318b [INFO] running `Command { std: "docker" "start" "-a" "83677d6315b8545a39ce3349274d1d411c9618ac81368b913f78d1b516c7318b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "83677d6315b8545a39ce3349274d1d411c9618ac81368b913f78d1b516c7318b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "83677d6315b8545a39ce3349274d1d411c9618ac81368b913f78d1b516c7318b", kill_on_drop: false }` [INFO] [stdout] 83677d6315b8545a39ce3349274d1d411c9618ac81368b913f78d1b516c7318b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 980d4195aaa0e5df69b500088e604e0c19beae4d7fd0edf810e1bc52bd99e8d0 [INFO] running `Command { std: "docker" "start" "-a" "980d4195aaa0e5df69b500088e604e0c19beae4d7fd0edf810e1bc52bd99e8d0", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.112 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling serde v1.0.132 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling ppv-lite86 v0.2.16 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling ryu v1.0.9 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling encode_unicode v0.3.6 [INFO] [stderr] Compiling unicode-width v0.1.9 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling colored v2.0.0 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling bstr v0.2.17 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling csv v1.1.6 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling prettytable-rs v0.8.0 [INFO] [stderr] Compiling scrabble v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::cmp` [INFO] [stdout] --> src/racks.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cmp; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/score.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/score.rs:19:13 [INFO] [stdout] | [INFO] [stdout] 19 | Err(e) => 0 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/score.rs:32:19 [INFO] [stdout] | [INFO] [stdout] 32 | fn letters_played(b: &Board, p: &Play) -> i32 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `word` is assigned to, but never used [INFO] [stdout] --> src/score.rs:73:13 [INFO] [stdout] | [INFO] [stdout] 73 | let mut word = 1; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_word` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/plays.rs:58:16 [INFO] [stdout] | [INFO] [stdout] 58 | mut plays: &mut Vec) -> () { [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/racks.rs:61:32 [INFO] [stdout] | [INFO] [stdout] 61 | rack: &str, mut results: &mut HashSet) { [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `across` [INFO] [stdout] --> src/board.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | across: isize, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Board` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/board.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | #[derive(Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `down` [INFO] [stdout] --> src/board.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | down: isize, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Board` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/board.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | #[derive(Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 49s [INFO] running `Command { std: "docker" "inspect" "980d4195aaa0e5df69b500088e604e0c19beae4d7fd0edf810e1bc52bd99e8d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "980d4195aaa0e5df69b500088e604e0c19beae4d7fd0edf810e1bc52bd99e8d0", kill_on_drop: false }` [INFO] [stdout] 980d4195aaa0e5df69b500088e604e0c19beae4d7fd0edf810e1bc52bd99e8d0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9ab6434c9e40c897e33acb1e9253e8a42ac5c6d67d74e79226d8043ac74e106b [INFO] running `Command { std: "docker" "start" "-a" "9ab6434c9e40c897e33acb1e9253e8a42ac5c6d67d74e79226d8043ac74e106b", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling scrabble v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::cmp` [INFO] [stdout] --> src/racks.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::cmp; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/score.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/score.rs:19:13 [INFO] [stdout] | [INFO] [stdout] 19 | Err(e) => 0 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/score.rs:32:19 [INFO] [stdout] | [INFO] [stdout] 32 | fn letters_played(b: &Board, p: &Play) -> i32 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `word` is assigned to, but never used [INFO] [stdout] --> src/score.rs:73:13 [INFO] [stdout] | [INFO] [stdout] 73 | let mut word = 1; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_word` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/plays.rs:58:16 [INFO] [stdout] | [INFO] [stdout] 58 | mut plays: &mut Vec) -> () { [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/racks.rs:61:32 [INFO] [stdout] | [INFO] [stdout] 61 | rack: &str, mut results: &mut HashSet) { [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `across` [INFO] [stdout] --> src/board.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | across: isize, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Board` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/board.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | #[derive(Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `down` [INFO] [stdout] --> src/board.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | down: isize, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Board` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/board.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | #[derive(Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 5.10s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/scrabble-c0168ded9d6c1d79) [INFO] running `Command { std: "docker" "inspect" "9ab6434c9e40c897e33acb1e9253e8a42ac5c6d67d74e79226d8043ac74e106b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ab6434c9e40c897e33acb1e9253e8a42ac5c6d67d74e79226d8043ac74e106b", kill_on_drop: false }` [INFO] [stdout] 9ab6434c9e40c897e33acb1e9253e8a42ac5c6d67d74e79226d8043ac74e106b