[INFO] cloning repository https://github.com/jamiehale/sudoku-generator [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamiehale/sudoku-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamiehale%2Fsudoku-generator", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamiehale%2Fsudoku-generator'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 966ee8203f51009d5e85c70350d1e28b5a1a991a [INFO] building jamiehale/sudoku-generator against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamiehale%2Fsudoku-generator" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jamiehale/sudoku-generator on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jamiehale/sudoku-generator [INFO] finished tweaking git repo https://github.com/jamiehale/sudoku-generator [INFO] tweaked toml for git repo https://github.com/jamiehale/sudoku-generator written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/jamiehale/sudoku-generator already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e74e1a4f495ed8295190708ec6f1964c919ca2dc8d6f52b2fcfa759591308ef7 [INFO] running `Command { std: "docker" "start" "-a" "e74e1a4f495ed8295190708ec6f1964c919ca2dc8d6f52b2fcfa759591308ef7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e74e1a4f495ed8295190708ec6f1964c919ca2dc8d6f52b2fcfa759591308ef7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e74e1a4f495ed8295190708ec6f1964c919ca2dc8d6f52b2fcfa759591308ef7", kill_on_drop: false }` [INFO] [stdout] e74e1a4f495ed8295190708ec6f1964c919ca2dc8d6f52b2fcfa759591308ef7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 55480d25bbcf7689e66078133b2bb56322f15348b42166d09267c9ba2d66872b [INFO] running `Command { std: "docker" "start" "-a" "55480d25bbcf7689e66078133b2bb56322f15348b42166d09267c9ba2d66872b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.132 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.16 [INFO] [stderr] Compiling either v1.8.0 [INFO] [stderr] Compiling itertools v0.10.3 [INFO] [stderr] Compiling getrandom v0.2.7 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling sudoku v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/notes.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 9 | impl PencilMarks { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 10 | fn new() -> PencilMarks { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | fn from(marks: Vec) -> PencilMarks { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | fn with(&self, marks: Vec) -> PencilMarks { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | fn without(&self, marks: Vec) -> PencilMarks { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | fn set(&mut self, mark: u8) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | fn clear(&mut self, mark: u8) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | fn is_set(&self, mark: u8) -> bool { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | fn is_clear(&self, mark: u8) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Partial` is never constructed [INFO] [stdout] --> src/notes.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 63 | enum NoteCell { [INFO] [stdout] | -------- variant in this enum [INFO] [stdout] 64 | Partial(PencilMarks), [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `NoteCell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `mark_at`, `clear_at`, `clear_row`, `clear_column`, and `clear_house` are never used [INFO] [stdout] --> src/notes.rs:80:8 [INFO] [stdout] | [INFO] [stdout] 73 | impl Notes { [INFO] [stdout] | ---------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 80 | fn mark_at(&mut self, value: u8, row: usize, column: usize) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 88 | fn clear_at(&mut self, value: u8, row: usize, column: usize) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 96 | fn clear_row(&mut self, value: u8, row: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | fn clear_column(&mut self, value: u8, column: usize) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 116 | fn clear_house(&mut self, value: u8, house: usize) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.28s [INFO] running `Command { std: "docker" "inspect" "55480d25bbcf7689e66078133b2bb56322f15348b42166d09267c9ba2d66872b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "55480d25bbcf7689e66078133b2bb56322f15348b42166d09267c9ba2d66872b", kill_on_drop: false }` [INFO] [stdout] 55480d25bbcf7689e66078133b2bb56322f15348b42166d09267c9ba2d66872b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 62b58f7b84c5f534c95712bb7a75105b5cdef61702dcfca7d7d254bfbc8b3fa6 [INFO] running `Command { std: "docker" "start" "-a" "62b58f7b84c5f534c95712bb7a75105b5cdef61702dcfca7d7d254bfbc8b3fa6", kill_on_drop: false }` [INFO] [stderr] Compiling sudoku v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/notes.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 9 | impl PencilMarks { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 10 | fn new() -> PencilMarks { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | fn from(marks: Vec) -> PencilMarks { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | fn with(&self, marks: Vec) -> PencilMarks { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | fn without(&self, marks: Vec) -> PencilMarks { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | fn set(&mut self, mark: u8) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | fn clear(&mut self, mark: u8) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | fn is_set(&self, mark: u8) -> bool { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | fn is_clear(&self, mark: u8) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Partial` is never constructed [INFO] [stdout] --> src/notes.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 63 | enum NoteCell { [INFO] [stdout] | -------- variant in this enum [INFO] [stdout] 64 | Partial(PencilMarks), [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `NoteCell` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `mark_at`, `clear_at`, `clear_row`, `clear_column`, and `clear_house` are never used [INFO] [stdout] --> src/notes.rs:80:8 [INFO] [stdout] | [INFO] [stdout] 73 | impl Notes { [INFO] [stdout] | ---------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 80 | fn mark_at(&mut self, value: u8, row: usize, column: usize) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 88 | fn clear_at(&mut self, value: u8, row: usize, column: usize) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 96 | fn clear_row(&mut self, value: u8, row: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | fn clear_column(&mut self, value: u8, column: usize) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 116 | fn clear_house(&mut self, value: u8, house: usize) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s [INFO] running `Command { std: "docker" "inspect" "62b58f7b84c5f534c95712bb7a75105b5cdef61702dcfca7d7d254bfbc8b3fa6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "62b58f7b84c5f534c95712bb7a75105b5cdef61702dcfca7d7d254bfbc8b3fa6", kill_on_drop: false }` [INFO] [stdout] 62b58f7b84c5f534c95712bb7a75105b5cdef61702dcfca7d7d254bfbc8b3fa6